Abstract:
A conference support system is for supporting a conference. The conference support system includes one or more information processing apparatuses for implementing various functions of the conference support system. The conference support system includes an inputter configured to input a statement content that is a content of a statement stated by a participant of the conference; a determiner configured to determine a statement type of the statement content, based on the statement content input by the inputter; and an outputter configured to output at least one of the statement content, an evaluation of the conference, and an evaluation of the participant, based on a determination result obtained by the determiner.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    The present application claims the benefit of priority under 35 U.S.C. §119 of Japanese Patent Application No. 2016-017939, filed on Feb. 2, 2016, Japanese Patent Application No. 2016-105601, filed on May 26, 2016, and Japanese Patent Application No. 2017-004261, filed on Jan. 13, 2017, the contents of which are incorporated herein by reference in their entirety. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to a conference support system, a conference support method, and a recording medium. 
         [0004]    2. Description of the Related Art 
         [0005]    There is known a method in the related art for managing the progress of a conference by a conference support system. The conference support system manages the progress of a conference in order to reduce the load of cumbersome operations such as time adjustment, and to allow the chairman to concentrate on the proceeding contents and accurately expedite the proceedings. In this method, the conference support system displays the progress of the conference, and controls the display according to the proceedings of the conference. Specifically, first, the conference support system sets the scheduled proceeding time required for each proceeding topic in advance, with respect to a plurality of conference agendas, and creates a timetable for the entire conference. Next, the conference support system displays an index indicating the elapsed time of the conference agenda item, according to need. Furthermore, the conference support system detects the end of the proceeding item, and shifts the index to the next conference agenda. Then, the conference support system reallocates the remaining scheduled proceeding time with respect to the remaining conference agendas, at the time point when a conference agenda has ended. In this way, the conference support system automatically adjusts the time such that the conference ends within the scheduled proceeding time, and therefore the load of operations for time adjustment is reduced. Thus, the chairman is able to concentrate on the proceeding contents and accurately manage the progress of the proceedings (see, for example, Patent Document 1). 
         [0006]    Patent Document 1: Japanese Unexamined Patent Application Publication No. 2007-43493 
       SUMMARY OF THE INVENTION 
       [0007]    An aspect of the present invention provides a conference support system, a conference support method, and a recording medium, in which one or more of the above-described disadvantages are reduced. 
         [0008]    According to one aspect of the present invention, there is provided a conference support system for supporting a conference, the conference support system including one or more information processing apparatuses for implementing various functions of the conference support system, the conference support system including an inputter configured to input a statement content that is a content of a statement stated by a participant of the conference; a determiner configured to determine a statement type of the statement content, based on the statement content input by the inputter; and an outputter configured to output at least one of the statement content, an evaluation of the conference, and an evaluation of the participant, based on a determination result obtained by the determiner. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]    Other objects, features and advantages of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings, in which: 
           [0010]      FIG. 1  is a conceptual diagram for describing an example of the overall configuration of a conference support system according to a first embodiment of the present invention; 
           [0011]      FIG. 2  is an example of a hardware block diagram of an information processing apparatus according to an embodiment of the present invention; 
           [0012]      FIG. 3  is a functional block diagram of an example of the conference support system according to the first embodiment of the present invention; 
           [0013]      FIG. 4  illustrates an example of a screen displayed by the conference support system according to the first embodiment of the present invention; 
           [0014]      FIG. 5  illustrates an example of a setting screen for setting an agenda and a goal, etc., in the conference support system according to the first embodiment of the present invention; 
           [0015]      FIG. 6  illustrates an example where an alert and the remaining time are displayed on a screen displayed by the conference support system according to the first embodiment of the present invention; 
           [0016]      FIG. 7  is a flowchart illustrating an example of a process of determining the type of statement content by the conference support system according to the first embodiment of the present invention; 
           [0017]      FIG. 8  illustrates an example of a screen for switching between an abstract and the full text by the conference support system according to the first embodiment of the present invention; 
           [0018]      FIG. 9  is a flowchart illustrating an example of a process of switching between an abstract and the full text by the conference support system according to the first embodiment of the present invention; 
           [0019]      FIG. 10  illustrates an example of a screen indicating an abstract that is displayed by the conference support system according to the first embodiment of the present invention; 
           [0020]      FIG. 11  is a functional block diagram of an example of the conference support system according to a second embodiment of the present invention; 
           [0021]      FIG. 12  illustrates an example of a summary screen displayed by the conference support system according to the second embodiment of the present invention; 
           [0022]      FIG. 13  illustrates an example of an evaluation screen displayed by the conference support system according to the second embodiment of the present invention; 
           [0023]      FIG. 14  illustrates an example of a screen for inputting a subjective evaluation displayed by the conference support system according to the second embodiment of the present invention; 
           [0024]      FIG. 15  is a flowchart of an example of a process of making an evaluation based on the time length of the conference, performed by the conference support system according to the second embodiment of the present invention; 
           [0025]      FIG. 16  is a conceptual diagram illustrating an example of a natural language process using machine learning by the conference support system according to a third embodiment of the present invention; 
           [0026]      FIG. 17  illustrates an example of a graphical user interface (GUI) displayed by the conference support system according to the third embodiment of the present invention; 
           [0027]      FIG. 18  illustrates an example of a display of topics generated by the conference support system according to a fourth embodiment of the present invention; 
           [0028]      FIG. 19  illustrates an example of displayed results extracted by the conference support system according to the fourth embodiment of the present invention; and 
           [0029]      FIG. 20  is a flowchart of an example of generating topics by the conference support system according to the fourth embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0030]    The method of the related art, for managing the progress of a conference, merely manages the time of each agenda in the conference. On the other hand, there has been demand to efficiently hold a conference by making the contents of the conference visible. 
         [0031]    A problem to be solved by an embodiment of the present invention is to provide a conference support system that can increase the efficiency of a conference. 
         [0032]    Embodiments of the present invention will be described by referring to the accompanying drawings. 
       First Embodiment 
     (Overall Configuration) 
       [0033]      FIG. 1  is a conceptual diagram for describing an example of the overall configuration of a conference support system according to a first embodiment of the present invention. For example, as illustrated, a conference support system  1  includes a server  10  that is an example of a conference support apparatus, and one or more terminals  11 . Furthermore, the server  10  and the terminals  11  are coupled via a network  12 . Furthermore, the server  10  and the terminals  11  are information processing apparatuses such as a personal computer (PC), having a hardware configuration, for example, as described below. 
       (Hardware Configuration) 
       [0034]      FIG. 2  is an example of a hardware block diagram of an information processing apparatus according to an embodiment of the present invention. For example, the server  10  and the terminal  11  include a central processing unit (CPU)  10 H 1 , an interface (I/F)  10 H 2 , and an output device  10 H 3 . Furthermore, the server  10  and the terminal  11  include an input device  10 H 4 , a hard disk (HD)  10 H 5 , and a storage device  10 H 6 . Furthermore, the hardware elements are coupled to each other by a bus  10 H 7 . Note that the server  10  and the plurality of terminals  11  may have the same hardware configuration or may have different hardware configurations. In this example described below, the server  10  and the plurality of terminals  11  have the same hardware configuration, and the server  10  is taken as an example. 
         [0035]    The CPU  10 H 1  is an arithmetic device for performing calculations to implement processing of various processes and various kinds of data, and a control device for controlling the hardware elements, etc. Note that the server  10  may include a plurality of arithmetic devices or control devices. 
         [0036]    The I/F  10 H 2  is, for example, a connector and a process integrated circuit (IC), etc. For example, the I/F  10 H 2  sends and receives data with an external device via a network, etc. 
         [0037]    The output device  10 H 3  is a display, etc., for displaying a display screen and a graphical user interface (GUI), etc. 
         [0038]    The input device  10 H 4  is a touch panel, a keyboard, a mouse, and a microphone, or a combination of these elements, etc., used by the user for inputting operations, etc. Note that the microphone is preferably a so-called directional microphone, which can recognize the direction of the sound source. 
         [0039]    The HD  10 H 5  is an example of a secondary storage device. That is, the HD  10 H 5  stores programs and files used for processes or data of various settings, etc. 
         [0040]    The storage device  10 H 6  is a so-called memory, etc. That is, the programs or data, etc. stored in the HD  10 H 5  are loaded in the storage device  10 H 6 . 
       (Functional Configuration Example) 
       [0041]      FIG. 3  is a functional block diagram of an example of the conference support system  1  according to the first embodiment of the present invention. For example, the conference support system  1  includes an inputting unit  1 F 1 , a control unit  1 F 2 , a storage unit  1 F 3 , and an outputting unit  1 F 4 . 
         [0042]    For example, in the conference support system  1 , the terminal  11  ( FIG. 1 ) includes the inputting unit  1 F 1  and the outputting unit  1 F 4 . Furthermore, the server  10  ( FIG. 1 ) includes the control unit  1 F 2  and the storage unit  1 F 3 . Note that the respective units may be included in either the terminal  11  or the server  10 . 
         [0043]    The inputting unit  1 F 1  inputs the content of the statement stated in a conference (statement content). For example, the inputting unit  1 F 1  is realized by the input device  10 H 4  ( FIG. 2 ), etc. 
         [0044]    The control unit  1 F 2  implements control to realize the respective processes. Specifically, the control unit  1 F 2  includes a determining unit  1 F 21 . Furthermore, as illustrated, the control unit  1 F 2  may also include a decorating unit  1 F 22 , a time managing unit  1 F 23 , and a speaker determining unit  1 F 24 . For example, the control unit  1 F 2  is realized by the CPU  10 H 1  ( FIG. 2 ), etc. 
         [0045]    The storage unit  1 F 3  stores data, etc., that is input in in advance. The storage unit  1 F 3  realizes a database, etc. Furthermore, the storage unit  1 F 3  stores statement contents. For example, the storage unit  1 F 3  is realized by the HD  10 H 5  ( FIG. 2 ) and the storage device  10 H 6  ( FIG. 2 ), etc. 
         [0046]    The outputting unit  1 F 4  displays or prints, etc., conference contents, and outputs the conference contents, such as the conference minutes, an evaluation result, an abstract, statement contents, a determination result, or a combination of these items, to the participates, etc., of the conference, in a mode set in advance. For example, the outputting unit  1 F 4  is realized by the output device  10 H 3  ( FIG. 2 ), etc. 
         [0047]    First, in the conference support system  1 , during a conference, a statement content made in the conference is input by the person who has stated the statement content (herein after, “speaker”) or the minute taker, etc., to the inputting unit  1 F 1 . Specifically, for example, the statement content is input in a text format with a keyboard, etc. Note that the statement contents may be contents input with a keyboard, etc., after the participant has orally made a statement. In another example, when the participant inputs the contents that the participant wants to state with a keyboard in an online conference, etc., held between remote locations by using chat, etc., the statement contents may be the contents input by chat, etc. Said differently, the statement contents are not limited to contents that are stated orally. That is, the statement contents may not be stated orally, but may be contents that are input with a keyboard, etc. 
         [0048]    In another example, the statement contents may be input by voice sound with a microphone, etc. That is, when the statement contents are input by voice sound, the conference support system  1  may recognize the input voice sound and generate text data, etc., based on the recognized voice sound. Furthermore, the statement contents may be input by handwriting in an electronic blackboard or a tablet terminal, etc. That is, when the statement contents are input by handwritten characters, the conference support system  1  may perform optical character recognition (OCR), etc., on the input handwritten characters, and generate text data, etc. 
         [0049]    Note that when the speaker determining unit  1 F 24  identifies who the speaker is among the participants, the speaker determining unit  1 F 24  may use a plurality of directional microphones, etc., to associate the direction in which the generation source of the voice sound is determined to be with the speaker, and identify the speaker among the participants. Alternatively, the speaker determining unit  1 F 24  may perform voice sound authentication on the input voice sound data, and identify the speaker based on the authentication result. Alternatively, the speaker determining unit  1 F 24  may capture an image of the speaker with a camera, etc., coupled to the network  12  ( FIG. 1 ), and perform face authentication by using the captured image, to identify the speaker. 
         [0050]    Furthermore, the inputting unit  1 F 1  may input information for identifying who has stated the statement content. Specifically, for example, first, speaker information items are assigned in advance to a plurality of function keys (“F 1 ” through “F 12 ”) included in the keyboard. Then, when inputting the statement contents, a function key may be pressed to apply a speaker information item to the statement contents, by the conference support system  1 . In this way, the statement contents and the speaker may be associated with each other. 
         [0051]    Next, the conference support system  1  determines the type of the input statement, by the determining unit  1 F 21 . Specifically, the type of statement (statement type) is, for example, “proposal”, “question”, “answer”, “positive opinion”, “negative opinion”, “neutral opinion”, “information”, “request”, “problem”, “action item” (hereinafter also referred to as “A. I.”), and “determination item”, etc. In the following, a description is given of an example of classifying the statement contents into the statement types described above. 
         [0052]    First, in the conference support system  1 , expressions, which are defined for each statement type, are stored in the storage unit  1 F 3  in advance, for the purpose of determining the statement type. Furthermore, expressions are words, phrases, or terms, etc., and the statement type and an expression unique to the statement type are stored in association with each other in the storage unit  1 F 3 . Then, when the statement content is input by the inputting unit  1 F 1 , the determining unit  1 F 21  determines whether the statement content includes an expression stored in the storage unit  1 F 3 . Next, when the statement content includes an expression stored in the storage unit  1 F 3 , the determining unit  1 F 21  identifies the corresponding type from among the statement types. In this way, the conference support system  1  is able to determine the statement type of the statement content stated during a conference. 
         [0053]    Furthermore, the outputting unit  1 F 4  outputs the conference contents. For example, the outputting unit  1 F 4  decorates and displays the statement content, based on the statement type determined by the determining unit  1 F 21 . 
       (Input and Output Examples) 
       [0054]    In the conference support system  1 , for example, the terminals  11  display the following screens and perform processes. 
         [0055]      FIG. 4  illustrates an example of a screen displayed by the conference support system  1  according to the first embodiment of the present invention. For example, a screen displayed on the display of each terminal has a display and a graphical user interface (GUI) as illustrated. In the following, a description is given by taking the illustrated screen as an example. 
         [0056]    In this example, in the screen, an agenda  301  and the objective of the conference, i.e., a goal  302 , are output by the outputting unit  1 F 4 . Note that when the agenda  301  and the goal  302  are displayed during the conference, the participant&#39;s recognition and the vector of the discussion can be matched, etc. For this reason, the conference support system  1  is able to reduce deviations, etc., in the conference. Furthermore, the agenda  301  and the goal  302  are set in advance before the conference or at the beginning of the conference, as described below. 
         [0057]      FIG. 5  illustrates an example of a setting screen for setting the agenda and the goal, etc., in the conference support system  1  according to the first embodiment of the present invention. For example, the illustrated setting screen is displayed at the beginning of the conference, by the conference support system  1 . Note that when the following settings are made in the setting screen, and a start button  505  is subsequently pressed, the settings are completed. That is, after the start button  505  is pressed, the screen illustrated in  FIG. 4 , etc., is displayed by the conference support system  1 . 
         [0058]    As illustrated, the participant inputs an agenda in an agenda setting text box  501 . Then, the participant sets a goal for each agenda input in the agenda setting text box  501 . Note that the goal is input in, for example, a goal setting text box  502 . In this way, the agenda and the goal input in the agenda setting text box  501  and the goal setting text box  502  are displayed as the agenda  301  and the goal  302  as illustrated in  FIG. 4 , by the conference support system  1 . 
         [0059]    Furthermore, there are cases where an opening notice, etc., is created in advance, before the conference is held. In this case, the agenda and the goal described in the opening notice may be displayed as the agenda  301  and the goal  302  as illustrated in  FIG. 4 , by the conference support system  1 . In this way, when an opening notice, etc., is reported to the participants of the conference in advance, the participants are able to make preparations beforehand, and therefore the efficiency of the conference is increased. Furthermore, when an opening notice, etc., is reported to the participants of the conference in advance, the participants can determine whether they are able to participate in the agenda, and therefore the participants can avoid participating in a conference that is unnecessary. 
         [0060]    Referring back to  FIG. 4 , in the screen, a present time  306 , a time allocation  307 , and a progress status  308 , etc., are displayed by the conference support system  1 . Note that the present time  306  is displayed based on a time set in advance or data indicating a time acquired via a network, etc. Furthermore, the time allocation  307  is displayed based on the scheduled time for each agenda set in advance. For example, the scheduled time for each agenda is input in a scheduled time setting text box  503  illustrated in  FIG. 5 . Furthermore, the progress status  308  is displayed by a so-called progress bar, etc., which indicates the ratio of the elapsed time, etc., as illustrated, based on the time that has passed from the conference start time to the present time  306 . 
         [0061]    Furthermore, the following information may be displayed by the time managing unit  1 F 23  ( FIG. 3 ) and the outputting unit  1 F 4  ( FIG. 3 ). For example, when the scheduled end time of the entire conference or each agenda approaches, the remaining time may be displayed, or an alert prompting to wrap up the conference may be displayed. For example, in an example using the screen of  FIG. 4 , the conference support system  1  displays the following information. 
         [0062]      FIG. 6  illustrates an example where an alert and the remaining time are displayed on a screen displayed by the conference support system  1  according to the first embodiment of the present invention. As illustrated, the conference support system  1  may display a remaining time  401  and an alert  402 , etc. In the illustrated example, the displayed remaining time  401  indicates that the time from the present time until the scheduled end time of the entire conference is “less than or equal to  10  minutes”. Furthermore, the displayed alert  402  indicates a message to the participant to wrap up the conference, such as coming to a conclusion of the conference, because the remaining time of the conference is decreasing. When such a message is displayed, the participant is able to secure enough time for wrapping up the discussion. Therefore, the conference support system  1  is able to reduce circumstances where the participants engage in a heated debate until there is no more time left, and the conclusion of the conference or the action item, etc., becomes vague. 
         [0063]    Note that the alert and the remaining time are not limited to being output in the illustrated format. For example, the alert and the remaining time may be output by using a voice sound, etc. 
         [0064]    Referring back to  FIG. 4 , a statement content  303  is displayed in the screen. Note that the statement content  303  is decorated based on the determination result by the determining unit  1 F 21  ( FIG. 3 ). For example, as illustrated, to each statement content, information indicating the type of each statement is displayed and appended to the beginning or the end of each sentence. For example, the displayed and appended information indicating the statement type is “Q:”, “A:”, “proposal:”, “opinion (P):”, “opinion (N):”, “information:”, “agenda:”, and “A. I. candidate”. Note that any kind of decoration may be used as long as the type of each statement can be distinguished. For example, the decoration is made by applying different colors, using different typefaces such as italics and bold, etc., using different types of fonts, adding a character to the end of the sentence or to the beginning of the sentence, or a combination of these decorations. Note that the type of decoration may be set in advance in the conference support system  1 . Specifically, for example, a statement content that is determined to be a “positive opinion” is displayed in blue letters, and “opinion (P)” is appended to the beginning of the sentence. Furthermore, a statement content determined to be a “negative opinion” or a “problem” is displayed in red letters, and “opinion (N)” and “problem” are appended to the beginning of the respective sentences. In this way, when the statement type is indicated by decorations, the participant is able to intuitively recognize the important point in the conference, the content of the discussion, and the tendency of the conference, etc. Note that the decoration may be processed by the server  10  ( FIG. 1 ) or may be processed by a browser installed in the terminal  11  ( FIG. 1 ). 
         [0065]    Furthermore, when the speaker is identified, the speaker may be displayed by the conference support system  1  as illustrated. In the illustrated example, the name of the speaker is displayed in parenthesis. Note that the speaker may be displayed in a format other than the illustrated format. Furthermore, people who are candidate speakers, i.e., participants, are set in advance in a participant setting text box  504  in the setting screen of  FIG. 5 . Furthermore, as illustrated in  FIG. 4 , the participants set in the participant setting text box  504  are displayed as in a participant display  305  by the conference support system  1 . 
         [0066]    Note that in the illustrated example, a setting is made such that a function key is associated with each participant displayed in the participant display  305 . For example, in the illustrated example, when one of the participants “Sato” makes a statement, and the function key “F 2 ” is pressed when inputting the statement content stated by “Sato” in a statement content input text box  304 , the input statement content and “Sato” that is the speaker information are associated with each other. That is, in the illustrated example, when the function key “F 2 ” is pressed when inputting a statement content in the statement content input text box  304 , the conference support system  1  displays the input statement content with “(Sato)” appended to the statement content. 
         [0067]    Furthermore, for example, the statement type is determined by a process described below. In the following, a description is given of an example where the statement types are “question”, “answer”, “proposal”, “problem”, and “opinion”. 
         [0068]      FIG. 7  is a flowchart illustrating an example of a process of determining the type of statement content by the conference support system  1  according to the first embodiment of the present invention. 
         [0069]    In step S 01 , the conference support system  1  initializes a question flag. Specifically, the conference support system  1  sets “FALSE” in the question flag. Note that the question flag is an example of data indicating whether the statement type of the last statement content, which has just been input, is “question”. In the following, when the question flag is “FALSE”, the question flag indicates that the statement type of the last statement content is a statement type other than “question”. On the other hand, when the question flag is “TRUE”, the question flag indicates that the statement type of the last statement content is “question”. 
         [0070]    In step S 02 , the conference support system  1  inputs the statement content. Specifically, the conference support system  1  inputs the statement content by the inputting unit  1 F 1  ( FIG. 3 ). That is, in the example illustrated in  FIG. 4 , the statement content is input in the statement content input text box  304  by text, etc. 
         [0071]    In step S 03 , the conference support system  1  determines whether the question flag is “TRUE”. When the question flag is “TRUE” (YES in step S 03 ), next, the conference support system  1  proceeds to step S 04 . On the other hand, when the question flag is not “TRUE”, that is, when the question flag is “FALSE” (NO in step S 03 ), the conference support system  1  proceeds to step  505 . 
         [0072]    In step S 04 , the conference support system  1  determines that the statement type of the statement content is “answer”. Note that “answer” is a statement content that is returned to a statement content corresponding to a statement type “question”. Therefore, free expressions are allowed to be used in “answer”. That is, there are cases where it is not possible to set expressions for determining that the statement type is “answer” in advance. Therefore, as in step S 03 , the conference support system  1  determines whether the last statement content is “question”, that is, the conference support system  1  determines whether the statement type of the statement content is “answer”, according to the question flag. That is, when the last statement content is “question”, the conference support system  1  determines that the statement type of the next statement content is “answer”. On the other hand, when the last statement content is other than “question”, the conference support system  1  determines that the statement type of the next statement content is other than “answer”. In this way, the conference support system  1  classifies the statement contents of “answer”. Furthermore, in step S 04 , the conference support system  1  sets the question flag as “FALSE”. 
         [0073]    In step S 05 , the conference support system  1  determines whether the statement content includes expressions of “question”. For example, the conference support system  1  determines the statement type of the statement content, according to the auxiliary verb part in the statement content. Specifically, first, expressions such as “?”, “is it?”, and “is it not?”, etc., are stored in the storage unit  1 F 3  ( FIG. 3 ) in advance. Next, the conference support system  1  determines, by the determining unit  1 F 21  ( FIG. 3 ), whether all or part of the statement contents input by the inputting unit  1 F 1  ( FIG. 3 ) match a stored expression. That is, the determination is made by so-called pattern matching, etc. 
         [0074]    When the conference support system  1  determines that the statement content includes an expression of “question” in step S 05  (YES in step S 05 ), next, the conference support system  1  proceeds to step S 06 . On the other hand, when the conference support system  1  determines that the statement content does not include an expression of “question” in step S 05  (NO in step S 05 ), the conference support system  1  proceeds to step S 08 . 
         [0075]    In step S 06 , the conference support system  1  determines that the statement type of the statement content is “question”. 
         [0076]    In step S 07 , the conference support system  1  sets “TRUE” in the question flag. 
         [0077]    In step S 08 , the conference support system  1  determines whether the statement content includes expressions of “proposal”. For example, similar to the case of “question”, the conference support system  1  determines the statement type of the statement content, according to the auxiliary verb part in the statement content. Specifically, first, expressions such as “should be” and “preferable to do”, etc., are stored in the storage unit  1 F 3  ( FIG. 3 ) in advance. Next, the conference support system  1  determines, by the determining unit  1 F 21  ( FIG. 3 ), whether all or part of the statement contents input by the inputting unit  1 F 1  ( FIG. 3 ) match a stored expression. 
         [0078]    When the conference support system  1  determines that the statement content includes an expression of “proposal” in step S 08  (YES in step S 08 ), next, the conference support system  1  proceeds to step S 09 . On the other hand, when the conference support system  1  determines that the statement content does not include an expression of “proposal” in step S 08  (NO in step S 08 ), the conference support system  1  proceeds to step S 10 . 
         [0079]    In step S 09 , the conference support system  1  determines that the statement type of the statement content is “proposal”. 
         [0080]    In step S 10 , the conference support system  1  determines whether the statement content includes expressions of “problem”. For example, similar to the case of “question”, the conference support system  1  determines the statement type of the statement content, according to the auxiliary verb part in the statement content. Specifically, first, expressions such as “need to do” and “have to do”, etc., are stored in the storage unit  1 F 3  ( FIG. 3 ) in advance. Next, the conference support system  1  determines, by the determining unit  1 F 21  ( FIG. 3 ), whether all or part of the statement contents input by the inputting unit  1 F 1  ( FIG. 3 ) match a stored expression. 
         [0081]    When the conference support system  1  determines that the statement content includes an expression of “problem” in step S 10  (YES in step S 10 ), next, the conference support system  1  proceeds to step S 11 . On the other hand, when the conference support system  1  determines that the statement content does not include an expression of “problem” in step S 10  (NO in step S 10 ), the conference support system  1  proceeds to step S 12 . 
         [0082]    In step S 11 , the conference support system  1  determines that the statement type of the statement content is “problem”. 
         [0083]    In step S 12 , the conference support system  1  determines that the statement type of the statement content is “opinion”. 
         [0084]    As described above, steps S 02  through S 12  are repeatedly performed for each statement content. By performing such a process, the conference support system  1  is able to determine the statement type of the statement content. 
         [0085]    Furthermore, the conference support system  1  may display an abstract. For example, when operations as described below are performed, the conference support system  1  switches between an abstract and the full text. 
         [0086]      FIG. 8  illustrates an example of a screen for switching between an abstract and the full text by the conference support system  1  according to the first embodiment of the present invention. The illustrated screen is an example of a screen that is displayed during a conference. When a user presses an abstract instruction button BN 1  in  FIG. 8 , on which a message reading “display extracted important text” is displayed, the conference support system  1  switches the screen to display the abstract. 
         [0087]      FIG. 9  is a flowchart illustrating an example of a process of switching between an abstract and the full text by the conference support system  1  according to the first embodiment of the present invention. The conference support system  1  performs the illustrated process to generate an abstract. Note that in the following, the statement types are “proposal”, “question”, “answer”, “positive opinion”, “negative opinion”, “neutral opinion”, “information”, “request”, “problem”, “action item”, and “determination item”, etc. 
         [0088]    In step S 21 , the conference support system  1  initializes an abstract flag. Specifically, the conference support system  1  sets “FALSE” in the abstract flag. Note that the abstract flag is a flag for switching between displaying an abstract by extracting important parts of the input statement contents, and displaying the full text indicating the all of the statement contents. In the following, when the abstract flag is “FALSE”, the conference support system  1  assumes that a setting is made to display the full text. On the other hand, when the abstract flag is “TRUE”, the conference support system  1  assumes that a setting is made to display the abstract. 
         [0089]    In step S 22 , the conference support system  1  accepts that the abstract instruction button BN 1  ( FIG. 8 ) is pressed. Every time this abstract instruction button BN 1  is pressed, the screen display is switched between the full text and the abstract. 
         [0090]    In step S 23 , the conference support system  1  determines whether the abstract flag is “TRUE”. When the abstract flag is determined to be “TRUE” (YES in step S 23 ), next, the conference support system  1  proceeds to step S 24 . On the other hand, when the abstract flag is not determined to be “TRUE”, that is, when the abstract flag is determined to be “FALSE” (NO in step S 23 ), the conference support system  1  proceeds to step S 26 . 
         [0091]    In step S 24 , the conference support system  1  displays the full text. Specifically, for example, the conference support system  1  displays the screen illustrated in  FIG. 8 . That is, in the full text, the conference support system  1  displays all types of statement contents, among the input statement contents. 
         [0092]    In step S 25 , the conference support system  1  sets the abstract flag as “FALSE”. 
         [0093]    In step S 26 , the conference support system  1  displays the abstract. Specifically, for example, a screen as described below is displayed by the conference support system  1 . 
         [0094]      FIG. 10  illustrates an example of a screen indicating an abstract that is displayed by the conference support system  1  according to the first embodiment of the present invention. Compared to the screen of  FIG. 8 , the screen of  FIG. 10  is different in that an abstract display ABS is displayed. 
         [0095]    The abstract is a result obtained by extracting the important statement contents among the input statement contents. The conference support system  1  determines whether a statement content is an important statement content based on whether the type of the statement content is a statement type that has been set as important in advance. For example, the abstract is a result obtained by extracting the statement contents determined to be of the statement types “proposal”, “problem”, and “action item”, among all of the types of statement contents that are input. That is, an abstract is conference minutes generated as the conference support system  1  extracts the statement contents of predetermined statement types, from among the input statement contents. Note that in the illustrated example, the conference support system  1  has extracted statement contents determined to be of the statement types of “problem” and “action item”, from the full text illustrated in  FIG. 8 , to generate an abstract. As illustrated, the conference support system  1  displays the statement contents of the target statement types, and hides the statement contents of the other statement types. That is, when the abstract illustrated in  FIG. 10  is displayed, the participant can easily create an action item. In this way, when an abstract is displayed, the participant is able to review the points of the conference. Therefore, the conference support system  1  is able to let the participants organize the problem, the action item, or the determination item, without missing any of these important statements. In this way, the conference support system  1  can increase the efficiency of the conference. 
         [0096]    Referring back to  FIG. 9 , in step S 27 , the conference support system  1  sets “TRUE” in the abstract flag. 
         [0097]    As described above, steps S 22  through S 27  are repeatedly performed by the conference support system  1 . By performing such a process, the conference support system  1  is able to switch the display between full text and an abstract. 
       Second Embodiment 
       [0098]    A second embodiment is realized by, for example, the same overall configuration and hardware configuration as those of the first embodiment. Therefore, descriptions of the overall configuration and hardware configuration are omitted, and the different points are mainly described below. The functional configuration of the second embodiment is different from that of the first embodiment. 
         [0099]      FIG. 11  is a functional block diagram of an example of the conference support system  1  according to the second embodiment of the present invention. Compared to  FIG. 3 , the functional configuration of  FIG. 11  is different in that the control unit  1 F 2  includes a cost calculating unit  1 F 31  and an evaluating unit  1 F 32 . 
         [0100]    Furthermore, as illustrated, the conference support system  1  preferably further includes a translation processing unit  1 F 5 . 
         [0101]    The cost calculating unit  1 F 31  calculates the cost that arises as a conference is held, based on the labor costs of the participants. 
         [0102]    The evaluating unit  1 F 32  evaluates the conference, based on the time during which the conference is held, the number of statement contents, the statement types, and the ratio of the statement types, etc. 
         [0103]    The calculation of the cost by the cost calculating unit  1 F 31  and the evaluation by the evaluating unit  1 F 32  are performed, for example, when a summary button  309  that is the “to summary/saving screen” button as illustrated in  FIG. 4  is pressed, or when an alert  402  as illustrated in  FIG. 6  is displayed, etc. For example, the conference support system  1  displays a summary screen as described below. 
         [0104]      FIG. 12  illustrates an example of a summary screen displayed by the conference support system  1  according to the second embodiment of the present invention. In the illustrated example of the screen, the conference support system  1  displays, in an agenda display  801 , an agenda set by the agenda setting text box  501  ( FIG. 5 ), etc., in the opening notice or at the beginning of the conference. Furthermore, in the illustrated example of the screen, the conference support system  1  displays, in a goal display  802 , a goal set by the goal setting text box  502  ( FIG. 5 ), etc., in the opening notice or at the beginning of the conference. 
         [0105]    Based on the contents displayed in the agenda display  801  and the goal display  802 , a conclusion of the discussions is input to a conclusion input text box  803 . Furthermore, based on the contents displayed in the agenda display  801  and the goal display  802 , an action item that has been determined in the conference is input to an action item input text box  804 . Note that with respect to the action item, a date, i.e., a deadline, etc., may be set. Also, a person in charge may be set with respect to the action item. Furthermore, in the action item input text box  804 , a statement content, which is determined to be an “action item” by the conference support system  1 , may be displayed as a candidate action item. Alternatively, a sentence obtained by performing a sentence compression process described below on a statement content determined to be an “action item”, or a sentence obtained by organizing the expression of the end of the sentence determined to be an “action item” to create a simple expression, may be displayed as a candidate action item. 
         [0106]    Furthermore, the conference support system  1  displays the calculation of the cost by the cost calculating unit  1 F 31  ( FIG. 11 ) and the evaluation by the evaluating unit  1 F 32  ( FIG. 11 ) in, for example, an evaluation screen as described below. 
         [0107]      FIG. 13  illustrates an example of an evaluation screen displayed by the conference support system  1  according to the second embodiment of the present invention. For example, the conference support system  1  displays the cost and evaluation result of a conference by points and amounts, etc., as illustrated. 
         [0108]    Conference points  901  are the total points obtained by calculating the sum of achievement evaluation points  902 , conference time evaluation points  903 , activation level evaluation points  904 , and forwardness evaluation points  905 . 
         [0109]    The achievement evaluation points  902  are an evaluation result indicating whether a conclusion has been input with respect to each goal that has been set in advance, with respect to each agenda set by the agenda setting text box  501  ( FIG. 5 ). For example, when four agendas have been set by the agenda setting text box  501  ( FIG. 5 ), and two conclusions have been input with respect to the four agendas, the conference support system  1  sets the achievement evaluation points  902  to be half the full points. 
         [0110]    The conference time evaluation points  903  are an evaluation result obtained by comparing the scheduled time set by the opening notice or the scheduled time setting text box  503  ( FIG. 5 ), and the time length of the conference. For example, when the time length of the conference is shorter than the scheduled time, the conference time evaluation points  903  become high. On the other hand, when the time length of the conference is longer than the scheduled time, the conference time evaluation points  903  become low. 
         [0111]    The activation level evaluation points  904  are an evaluation result obtained by making an evaluation based on the number of statement contents or the number of statement contents per unit time, etc. For example, when the number of statement contents or the number of statement contents per unit time is large, the activation level evaluation points  904  become high. On the other hand, when the number of statement contents or the number of statement contents per unit time is small, the activation level evaluation points  904  become low. Therefore, when the activation level evaluation points  904  are low, there may be a possibility that the conference is unnecessary but the conference is being used as a place for sharing information, or people who are unrelated to the agenda are assembled and the people are doing side jobs during the conference. Therefore, the conference support system  1  feeds back these possibilities to prompt an improvement in the operations of conferences. 
         [0112]    The forwardness evaluation points  905  are an evaluation result obtained by making an evaluation based on the statement types and the ratio of statement types determined by the determining unit  1 F 21  ( FIG. 11 ). For example, when the ratio of statement contents of the statement type “proposal” is high, the forwardness evaluation points  905  become high. On the other hand, when the ratio of statement contents of the statement type “proposal” is low, the forwardness evaluation points  905  become low. Therefore, when the forwardness evaluation points  905  are low, there may be a possibility that there are many criticisms and comments, etc., in the conference, and a conclusion cannot be obtained. Therefore, the conference support system  1  may suggest this possibility to prompt the participants to give constructive opinions to attain a goal. 
         [0113]    The conference support system  1  makes the above evaluations by the evaluating unit  1 F 32  ( FIG. 11 ). Next, the conference support system  1  may output the evaluation results to a screen, etc., by the outputting unit  1 F 4  ( FIG. 11 ), to feed back the objective evaluation results of the conference to the participants. In this way, by feeding back the evaluation results, the conference support system  1  is able to suggest to the participants where the problem may lie in the conference, etc., or make the participants to be aware of the time taken by the conference. Accordingly, the conference support system  1  is able to cause the participants to reconsider the members to participate in the conference or how to proceed with the conference. 
         [0114]    Note that the evaluation results, the number of statement contents, and the statement types may be displayed by the conference support system  1  during the conference. For example, in the example illustrated in  FIG. 4 , the evaluation results, etc., may be displayed as in an evaluation display  310 . That is, the evaluation results may be displayed in a real-time manner during the conference. In this way, for example, the conference support system  1  is able to prompt a participant who is not making many statements, to make more statements. 
         [0115]    Furthermore, the conference support system  1  may weight the statement content that is determined to be a “problem” or a “proposal”, etc., in the evaluation process. In this way, the conference support system  1  is able to prompt the participants to state many statement contents of the statement types “problem” and “proposal”, etc. Thus, the conference support system  1  is able to promote more beneficial discussions. 
         [0116]    Furthermore, in the evaluation screen, the conference support system  1  may display a calculation result of the cost, etc. For example, the cost calculating unit  1 F 31  ( FIG. 11 ) calculates the cost based on a conference time  906  and the labor costs, etc., of the participants. The calculated cost is displayed, for example, as a cost display  907 , etc. 
         [0117]    In order to calculate the cost, first, in the conference support system  1 , the labor cost per unit time of a participant is input. Note that the labor cost may be a uniformly fixed cost among all participants, or different labor costs may be set for the respective posts of the participants. Furthermore, the labor costs may be set based on the actual salaries, etc., of the participants. 
         [0118]    Next, the conference support system  1  measures the elapsed time from the conference start time until the conference ends, and displays the measurement result in the conference time  906 . Then, the conference support system  1  multiples the labor cost per unit time of each participant by the conference time  906 , to calculate the cost of each participant. Next, the conference support system  1  obtains the total sum of the costs of the participants, and displays the calculation result in the cost display  907 . 
         [0119]    Furthermore, the conference support system  1  may display the evaluation result of each participant in the evaluation screen. For example, the evaluation result of each participant is displayed as a contribution level display  908 , etc. 
         [0120]    For example, the contribution level display  908  indicates the evaluation result of each participant, based on the statement type and the number of statement contents, etc., determined by the determining unit  1 F 21  ( FIG. 11 ). Note that the statement content is associated with the participant that has stated the statement content, by the speaker determining unit  1 F 24  illustrated in  FIG. 3 . 
         [0121]    For example, the contribution level display  908  is calculated by the conference support system  1  as described below. First, the participant sets a weight to a statement type that is considered to be important in line with the objective of the conference, such as “ 1  point” for “neutral opinion”, and “ 5  points” for “problem” and “proposal”. Note that in the conference support system  1 , a high weight is preferably set for constructive opinions such as “problem” and “proposal”. By setting the weight as above, the conference support system  1  is able to promote beneficial discussions toward problem-solving. 
         [0122]    Next, the conference support system  1  makes an evaluation for each participant, according to the product of the determination result by the determining unit  1 F 21  and the number of statement contents. The value calculated by this evaluation is the “contribution level” and the “gained points” indicated in the contribution level display  908 . In this way, when the conference support system  1  feeds back the “contribution level”, etc., to the participants, the participants are able use the “contribution level”, etc., to revise the members to participate in the conference. Thus, the conference support system  1  is able to promote more beneficial discussions. Furthermore, it is possible to reduce the number of unnecessary members among the participants, and therefore the conference support system  1  is able to reduce the cost of the conference. 
         [0123]    Note that the screens indicated above may be shared in a real-time manner among the terminals  11  coupled to the network  12  illustrated in  FIG. 1 . Accordingly, even when a conference is held at a location without a display, if the participants bring along the terminals  11  such as notebook PCs, the participants can look at the above screens while holding the conference. 
         [0124]    Furthermore, the statement contents, etc., may be edited in a shared manner from the respective terminals  11 . For example, the server  10  may convert the contents, etc., displayed on the screen into a Hyper Text Markup Language (HTML) file, etc., and send the HTML file to the respective terminals  11 . Next, when the statement contents, etc., are input, and data indicating the statement contents, etc., is sent to the server  10 , the server  10  sends a HTML file in which the new statement contents, etc., are applied, to the respective terminals  11 . 
         [0125]    Furthermore, for the purpose of sharing a screen in a real-time manner, for example, a protocol for bidirectional communication such as WebSocket is used. WebSocket is a protocol disclosed in “https://ja.wikipedia.org/wiki/WebSocket”, etc. 
         [0126]    Note that a translation process may be performed on the words displayed in the screen. For example, when a statement content, etc., is input, and data indicating the statement content, etc., is sent to the server  10 , the server  10  translates the statement content, and generates a HTML file indicating the statement content before translation and the statement content after translation. Next, the server  10  sends the HTML file indicating the statement content before translation and the statement content after translation, to the respective terminals  11 . Accordingly, even if the participants speak different languages, the conference support system  1  can reduce miscommunications. 
         [0127]    The translation process is implemented by the translation processing unit  1 F 5  ( FIG. 11 ). For example, the translation processing unit  1 F 5  has a functional configuration including a translating unit, a translation language setting unit, and a translation result storage processing unit, etc., as described below. Specifically, the translation process is realized by a method disclosed in Japanese Unexamined Patent Application Publication No. 2015-153408, etc. Note that the translation processing unit  1 F 5  is realized by, for example, the CPU  10 H 1  ( FIG. 2 ), etc. 
         [0128]    First, the translation language setting unit sets the language spoken by the participant (hereinafter referred to as “input language”) and the language after translating the input language (hereinafter referred to as “translated language”), based on the user&#39;s operations. 
         [0129]    Then, the translating unit refers to a language model and a word dictionary to perform a part of speech decomposing process and sentence structure analysis on the statement contents input in the input language. In this way, the translating unit translates the statement contents input in the input language, into the translated language. 
         [0130]    Next, the translation result storage processing unit stores the characters, etc., in the translated language generated according to the translation performed by the translating unit, as a text file, etc. Then, the conference support system  1  may output the characters, etc., in the translated language stored in the translation result storage processing unit. 
         [0131]    Furthermore, the respective terminals  11  may perform user authentication. For example, user authentication is performed by inputting a user name in an input text box for inputting a user name, displayed on the screen. Alternatively, user authentication may be performed by using an integrated circuit (IC) card or a radio-frequency identification device (RFID), etc. Accordingly, similar to the allocation of function keys in  FIG. 4 , the speaker and the statement content may be associated with each other based on the authentication result of user authentication described above, and the terminal in which the statement content has been input. Note that the information relevant to the speaker may be decorated by being colored, or having information appended to the beginning or the end of each sentence, similar to the first embodiment. 
         [0132]    Furthermore, a subjective evaluation may be input with respect to the statement content, and the conference support system  1  may make an evaluation based on the input subjective evaluation. For example, a subjective evaluation is input as follows. 
         [0133]      FIG. 14  illustrates an example of a screen for inputting a subjective evaluation displayed by the conference support system  1  according to the second embodiment of the present invention. Compared to  FIG. 6 , the example of the screen illustrated in  FIG. 14  is different in that a subjective evaluation button  1001  is added to each of the displayed statement contents. 
         [0134]    As illustrated, the subjective evaluation button  1001  is displayed for each statement content. Then, when each participant determines that the participant himself supports the statement content, the participant presses the subjective evaluation button  1001  displayed for the statement content that the participant supports. Note that the subjective evaluation button  1001  may be pressed by the participant who is in charge of inputting information, or may be pressed by the respective participants based on their own determinations. Furthermore, the subjective evaluation button  1001  may be pressed when a participant does not support the statement content. In this way, when the subjective evaluation is input, the conference support system  1  is able to evaluate whether each statement content is a good statement, based on the subjective evaluations of the participants. Then, the conference support system  1  can display the evaluation result based on the subjective evaluations, and prompt the participants to make good statements to achieve the objective of the conference. 
         [0135]    Furthermore, the conference support system  1  may decorate and display the statement contents, based on input according to the subjective evaluation button  1001 . For example, in the illustrated screen, the conference support system  1  displays the statement content for which the subjective evaluation button  1001  has been pressed, as an enlarged display  1002 . As illustrated, in the enlarged display  1002 , the statement content is decorated such that the font size of the characters indicating the statement content is larger than those of the other statement contents. In this way, when the statement content is decorated and output, the participant can intuitively recognize the statement content that is supported, among the statement contents. Furthermore, the conference support system  1  may display the status of pros and cons with respect to a statement content, such as who is agreeing with a particular opinion and who is disagreeing with the particular opinion, by using user information. 
         [0136]    Note that decorations are realized, for example, by changing the description of Cascading Style Sheets (CSS) by using a language such as JavaScript (registered trademark), using the information indicating support or non-support. 
         [0137]    Furthermore, when displaying an abstract, the conference support system  1  may display a statement content that is determined to be an important statement based on the input subjective evaluations, in addition to displaying the statement contents based on the statement types. Accordingly, the participant can further understand the development of the discussion until a conclusion is achieved. That is, accordingly, the conference support system  1  is able to generate effective conference minutes for reviewing the conference and sharing information. 
         [0138]    Furthermore, the evaluating unit  1 F 32  ( FIG. 11 ) may evaluate the conference based on the time length of the conference. For example, the evaluating unit  1 F 32  ( FIG. 11 ) makes an evaluation as follows. 
         [0139]      FIG. 15  is a flowchart of an example of a process of making an evaluation based on the time length of the conference, performed by the conference support system  1  according to the second embodiment of the present invention. 
         [0140]    In step S 31 , the conference support system  1  accepts that an evaluation button has been pressed. For example, when an evaluation button saying “evaluate this conference” of  FIG. 10  is pressed, the conference support system  1  starts the evaluation. Furthermore, it is assumed that the time during which a conference is held is the time from when the conference has started to when the conference has ended (hereinafter referred to as “elapsed time”). Furthermore, it is assumed that the scheduled time length of the conference (hereinafter, simply referred to as “scheduled time”) is assumed to be input in the conference support system  1  in advance, such as before the evaluation button is pressed. 
         [0141]    In step S 32 , the conference support system  1  determines whether the elapsed time has exceeded the scheduled time by greater than or equal to 10%. When the conference support system  1  determines that the elapsed time has exceeded the scheduled time by greater than or equal to 10% (YES in step S 32 ), the conference support system  1  proceeds to step S 33 . On the other hand, when the conference support system  1  determines that the elapsed time has not exceeded the scheduled time by greater than or equal to 10% (NO in step S 32 ), the conference support system  1  proceeds to step S 34 . 
         [0142]    In step S 33 , the conference support system  1  sets the evaluation points as “ 0 ” points. 
         [0143]    In step S 34 , the conference support system  1  determines whether the elapsed time has exceeded the scheduled time by less than 10%. When the conference support system  1  determines that the elapsed time has exceeded the scheduled time by less than 10% (YES in step S 34 ), next, the conference support system  1  proceeds to step S 35 . On the other hand, when the conference support system  1  determines that the elapsed time has not exceeded the scheduled time by less than 10% (NO in step S 34 ), next, the conference support system  1  proceeds to step S 36 . 
         [0144]    In step S 35 , the conference support system  1  sets the evaluation points as “ 5 ” points. 
         [0145]    In step S 36 , the conference support system  1  determines whether the elapsed time has exceeded the scheduled time by less than 5%. When the conference support system  1  determines that the elapsed time has exceeded the scheduled time by less than 5% (YES in step S 36 ), next, the conference support system  1  proceeds to step S 37 . On the other hand, when the conference support system  1  determines that the elapsed time has not exceeded the scheduled time by less than 5% (NO in step S 36 ), next, the conference support system  1  proceeds to step S 38 . 
         [0146]    In step S 37 , the conference support system  1  sets the evaluation points as “ 10 ” points. 
         [0147]    In step S 38 , the conference support system  1  determines whether the elapsed time is shorter than the scheduled time by greater than or equal to 10%. When the conference support system  1  determines that the elapsed time is shorter than the scheduled time by greater than or equal to 10% (YES in step S 38 ), next, the conference support system  1  proceeds to step S 39 . On the other hand, when the conference support system  1  determines that the elapsed time is not shorter than the scheduled time by greater than or equal to 10% (NO in step S 38 ), next, the conference support system  1  proceeds to step S 40 . 
         [0148]    In step S 39 , the conference support system  1  sets the evaluation points as “ 25 ” points. 
         [0149]    In step S 40 , the conference support system  1  determines whether the elapsed time is shorter than the scheduled time by greater than or equal to 5%. When the conference support system  1  determines that the elapsed time is shorter than the scheduled time by greater than or equal to 5% (YES in step S 40 ), next, the conference support system  1  proceeds to step S 41 . On the other hand, when the conference support system  1  determines that the elapsed time is not shorter than the scheduled time by greater than or equal to 5% (NO in step S 40 ), next, the conference support system  1  proceeds to step S 42 . 
         [0150]    In step S 41 , the conference support system  1  sets the evaluation points as “ 20 ” points. 
         [0151]    In step S 42 , the conference support system  1  sets the evaluation points as “ 15 ” points. 
         [0152]    For example, as illustrated, the conference support system  1  makes an evaluation to give high evaluation points in a case where the elapsed time is shorter than the scheduled time. On the other hand, the conference support system  1  makes an evaluation to give low evaluation points in a case where the elapsed time has exceeded the scheduled time. Note that the values of evaluation points and the determination standards are not limited to the illustrated values and determinations, and may be changed by settings, etc. As illustrated, the conference support system  1  displays the evaluated evaluation points. 
         [0153]    Furthermore, as illustrated in  FIG. 13 , the conference support system  1  may display the evaluation results with star marks, etc., as illustrated in  FIG. 13 . Furthermore, the conference support system  1  may also display a comment prompting to transform actions, as illustrated in  FIG. 13 . Furthermore, the conference support system  1  may also display an evaluation result relevant to the time, together with the other evaluation results, as illustrated in  FIG. 13 . In this way, when an evaluation result, which is obtained by evaluating the conference based on the time length of the conference, is displayed, the conference support system  1  is able to make the participants be aware of the time relevant to the conference, and prompt the participants to achieve the objective within the scheduled time. In this way, the conference support system  1  is able to increase the efficiency of the conference. 
       Third Embodiment 
       [0154]    A third embodiment is realized by, for example, the same overall configuration, hardware configuration, and functional configuration as those of the first embodiment. In the following, the different points are mainly described. The determination method by the determining unit  1 F 21  ( FIG. 3 ) of the third embodiment is different from that of the first embodiment. 
         [0155]    In the third embodiment, the conference support system  1  sets a corpus with tags as training data. Then, the conference support system  1  performs so-called supervised learning, etc., which is a method of machine learning, to learn a classifier for performing a natural language process. In the following, a description is given of an example where the tags, i.e., the statement types, are “proposal”, “question”, “answer”, “positive opinion”, “negative opinion”, “neutral opinion”, “information”, “request”, “problem”, “action item”, and “determination item”, etc. 
         [0156]    Furthermore, the method of machine learning is, for example, support vector machine (SVM), Naive Bayes classifier, decision tree learning, or Conditional Random Fields (CRF). Note that the method of machine learning is preferably support vector machine. In the case of support vector machine, determinations can be sequentially made, and therefore the so-called real-time properties are improved. 
         [0157]    A classifier determines the statement type based on the characteristic (hereinafter referred to as “feature”) of the statement content. Specifically, the features are an adverb, an adjective, a noun, or an auxiliary verb included in the statement contents. For example, an adjective may indicate a positive expression or a negative expression. Furthermore, a noun may be an expression indicating an “action item” and a “problem” such as “to be reviewed” and “to reply”, in addition to a position expression or a negative expression. Furthermore, an auxiliary verb may be an expression indicating wish, obligation, necessity, request, proposal, predication, supposition, hearsay, and evaluation, at the end of a sentence. Therefore, when the classifier determines the statement type based on the feature, the conference support system  1  can determine the statement type with high precision. 
         [0158]    Furthermore, the conference support system  1  may be able to set the type of conference according to the users. For example, the same statement content may have different features, depending on whether the conference is held between staff members in the field, or whether the conference is a review conference. Specifically, in a conference held between staff members in the field, the feature of the statement content is “demand”. On the other hand, in a review conference, the feature of the statement given by a decision maker may be “action item” or “determination item”. These labels and the type of conference are highly related. Therefore, by setting the type of conference, the conference support system  1  is able to determine the statement type with high precision. 
         [0159]    Furthermore, the conference support system  1  may estimate the role of the speaker based on the statement content, and use the role as the feature. For example, in a review conference or a debrief session, etc., a speaker, who states many statement contents that are “questions” with respect to statement contents of the report content, is estimated to be a decision maker. Also, a speaker, who states many statement contents that are “problems”, is estimated to be an expert with respect to the topic of the conference. 
         [0160]    By using results obtained by the above estimations as features, in the learning and the determining of a classifier, the conference support system  1  can determine the statement type with high precision, even without setting the decision maker, etc., in the conference support system  1 . 
         [0161]    For example, the conference support system  1  performs a natural language process using machine learning, by a method described in “The basics of natural language process”, written by Manabu Okumura and published by Corona Publishing, Co., Ltd. 
         [0162]      FIG. 16  is a conceptual diagram illustrating an example of a natural language process using machine learning by the conference support system  1  according to the third embodiment of the present invention. As illustrated, the conference support system  1  learns a classifier CLF by supervised learning. First, data expressing an assembly of pairs of features and values, is input in the classifier CLF, and the classifier CLF outputs the class to which the input test data TSD belongs. A class is indicated by a class label CLB. That is, a class label CLB indicates the result of determining the statement type of the statement content indicated by the test data TSD. 
         [0163]    In order to learn the classifier CLF by a machine learning algorithm, as illustrated, the conference support system  1  inputs an assembly of pairs of data and a class to which the data belongs, as training data TRD. Next, when the training data TRD is input, the conference support system  1  learns the classifier CLF by the machine learning algorithm. In this way, after learning the classifier CLF, when the test data TSD is input, the conference support system  1  is able to output the class to which the test data TSD belongs, by the classifier CLF. According to the above configuration, by inputting information of words around the words of the statement content that is the determination target, the conference support system  1  is able to learn the classifier that can output the meanings of the words. 
         [0164]    By the method of determining the statement type by using the classifier CLF, the conference support system  1  is able to determine the statement type with higher precision, compared to the method of using pattern matching, etc. Furthermore, by the method of determining the statement type by using the classifier CLF, the labor hours taken for updating the data can be reduced, compared to the method of using pattern matching, etc. That is, when the method of determining the statement type by using the classifier CLF is used, the so-called maintenance properties can be improved. 
         [0165]    Furthermore, the participant may be able to change the class labels. In this way, when the class label CLB, which is obtained as a result of determination by the classifier CLF, indicates a different class from the class intended by the participant, the participant can change the class. For example, when the conference support system  1  determines a statement content stated by a participant to be an “opinion”, but the participant thinks his statement is a “question”, the participant performs an operation of chaining the class label from “opinion” to “question”. 
         [0166]    As described above, by performing the operation of changing the class label and feeding back the change, the conference support system  1  is able to learn the classifier CLF, in the same way as a case where the training data TRD is input in machine learning. Therefore, the conference support system  1  can learn the classifier CLF with less labor hours taken for updating the data. Thus, the conference support system  1  is able to determine the statement type with high precision. 
         [0167]    In another example, the conference support system  1  may determine the statement type based on the person who has stated the statement content. For example, in a conference, it is assumed that there is a person who is always stating many “problems” and a person who is always stating many “negative opinions”. In this case, the conference support system  1  may identify the person who has stated the statement content, to determine the statement type of “problem” and “negative opinion”, etc. Furthermore, the conference support system  1  may use the information of the identified person who has stated the statement content, as the feature. In this way, the conference support system  1  is able to determine the statement type in consideration of the tendency of the person stating the statement content. Therefore, the conference support system  1  is able to determine the statement type with high precision. 
         [0168]    Furthermore, the conference support system  1  may determine the statement type based on the role of the person who has stated the statement content, in the conference. For example, in a conference that is a debrief session, etc., the conference support system  1  may determine the statement type based on the fact that the statement content is stated by a “decision maker”, when the person who has stated the statement content is a “decision maker”. In this way, the conference support system  1  is able to determine the statement type in consideration of the tendency of the person who has stated the statement content. Therefore, the conference support system  1  is able to determine the statement type with high precision. Particularly, the conference support system  1  is able to determine the statement types of “action item” and “determination item”, etc., with high precision. 
         [0169]    Furthermore, when there are many statement types, i.e., labels, the precision in determination may decrease. Therefore, the conference support system  1  may divide the statement types into groups. A description is given of an example where the statement types are “proposal”, “question”, “answer”, “positive opinion”, “negative opinion”, “neutral opinion”, “information”, “request”, “problem”, “action item”, and “determination item”. 
         [0170]    For example, the statement types are divided into a “first group” and a “second group” as described below. 
         [0171]    First group: “proposal”, “question”, “answer”, “positive opinion”, “negative opinion”, “neutral opinion”, “information”, and “request” 
         [0172]    Second group: “action item”, and “determination item” 
         [0173]    Then, the conference support system  1  determines the statement type of the statement content, among the statement types in the “first group”. Next, the conference support system  1  determines the statement type of the statement content, among the statement types in the “second group”. In the configuration of  FIG. 16 , a classifier CLF is prepared for each group. 
         [0174]    For example, it is assumed that a participant has stated a statement content of “please somehow handle this case among a plurality of staff members”. The conference support system  1  determines that the statement type of this statement content is “answer” in the first group, and also “action item” in the second group. 
         [0175]    For example, it is assumed that statement contents of the statement types “action item” and “determination item” are important in the conference. In this case, when the important statement types are selected and grouped together as in the second group described above, the conference support system  1  is able to determine the statement contents of the important statement types with high precision. Furthermore, the number of the statement types in each group is less than that of a case where the statement types are not grouped, and therefore the conference support system  1  is able to determine the statement types with high precision. 
         [0176]    Furthermore, the conference support system  1  may display candidate conclusions or candidate determination items with respect to the statement contents. For example, the conference support system  1  displays statement contents to be candidate conclusions or candidate determination items as “conclusion”, “determination item”, or “problem”, etc., in the action item input text box  804  in  FIG. 12 . 
         [0177]    Furthermore, the conference support system  1  may display an icon, etc., of a trash box beside the action item input text box  804 . Then, when the user determines that there is an inappropriate candidate among the candidates of “conclusion”, “determination item”, or “problem”, etc., displayed in the action item input text box  804  by the conference support system  1 , the user uses the icon of the trash box to perform an operation of deleting the inappropriate candidate. In this way, the conference support system  1  may delete a displayed candidate, based on a user&#39;s operation. Furthermore, when deleting the candidate, the conference support system  1  also corrects the label of the supervisor data. Then, the conference support system  1  uses the corrected data, that is, the statement contents and the labels, to relearn the classifier. Accordingly, the conference support system  1  can learn the classifier even more. 
         [0178]    Furthermore, the user may perform an operation of adding candidates of “conclusion”, “determination item”, or “problem”, etc., to be displayed in the action item input text box  804 . That is, the user may add candidates that have not been cited by the conference support system  1 , in the action item input text box  804 . For example, the conference support system  1  displays a pull-down menu. Then, the user performs an operation of selecting a label to be added, from the pull-down menu. Note that the user may perform an operation of correcting the candidates displayed by the conference support system  1 . Based on these correction results, the labels of the supervisor data are also corrected. In this way, the conference support system  1  may relearn the classifier. 
         [0179]    In order to perform the above operations, for example, the following GUI is used. 
         [0180]      FIG. 17  illustrates an example of a GUI displayed by the conference support system  1  according to the third embodiment of the present invention. In the following, a description is given of an example in which the conference support system  1  displays the illustrated candidates in the action item input text box  804 . 
         [0181]    In this example, as illustrated, the conference support system  1  displays a trash box icon INTR beside each candidate. Then, when the trash box icon INTR is clicked, the conference support system  1  deletes the corresponding candidate. 
         [0182]    Furthermore, in this example, as illustrated, the conference support system  1  displays a pull-down menu PDMN. When this pull-down menu PDMN is operated, the conference support system  1  corrects or adds a label. 
         [0183]    By the above GUI, the conference support system  1  corrects, adds, or deletes candidates. 
       Fourth Embodiment 
       [0184]    A fourth embodiment is realized by, for example, the same overall configuration, hardware configuration, and functional configuration as those of the first embodiment. In the following, the different points are mainly described. The output by the outputting unit  1 F 4  ( FIG. 3 ) of the fourth embodiment is different from that of the first embodiment. 
         [0185]    A topic is a word indicating the theme, the topic of discussion, or the subject of a controversy, of a plurality of statement contents. For example, the conference support system  1  displays a topic as generated below. 
         [0186]      FIG. 18  illustrates an example of a display of topics generated by the conference support system  1  according to the fourth embodiment of the present invention. In the illustrated example, the conference support system  1  generates a topic  1101 , and arranges and displays a statement content  1102  corresponding to each topic  1101 . 
         [0187]    The statement contents, which are stated during a conference, are often related to a plurality of topics  1101 . Note that the statement contents, which are stated during a conference, may be related to a plurality of topics  1101 , or may be related to the same topic  1101 . 
         [0188]    As illustrated, the statement contents  1102  are grouped in units of topics  1101 . The statement contents  1102 , which are grouped in units of topics  1101 , are decorated according the type of each statement content  1102 . Furthermore, in the illustrated example, among the statement contents  1102 , the statement contents  1102  that are “positive opinions” are arranged on the left side, while the statement contents  1102  that are “negative opinions” and “problems” are arranged on the right side. In this way, when the statement contents  1102  are arranged according to the types of statement contents, the conference support system  1  can display the statement contents such that the user can easily and intuitively recognize the contents of the discussion. 
         [0189]    Furthermore, when the statement content  1102  is long, the conference support system  1  may shorten the statement content  1102 . For example, the conference support system  1  performs a so-called sentence compression process, etc. That is, the conference support system  1  may convert each of the statement contents into a simple format, by sentence compression, etc. 
         [0190]    Specifically, first, the conference support system  1  uses a sentence structure analysis tool, etc., to perform sentence structure analysis on the statement content. Then, the statement content is divided into a plurality of elements by the sentence structure analysis. Next, the conference support system  1  applies an importance level to each element. Next, the conference support system  1  deletes the elements having a low importance level, based on the importance levels. In this way, the conference support system  1  is able to reduce the elements in a sentence and shorten the statement content, without destroying the structure of the sentence. 
         [0191]    Furthermore, for example, the importance levels are set as follows.
       Nouns, proper nouns, nominative cases, and objective cases have high importance levels.   Elements including “etc.” indicating examples and “or” that is a particle, adverbs, and modifiers have low importance levels.       
 
         [0194]    Therefore, the conference support system  1  deletes modifiers, embedded words, and dependent clauses, etc., to perform sentence compression and shorten the statement content. Furthermore, sentence compression is performed by a method disclosed in, for example, “The basics of natural language process”, written by Manabu Okumura and published by Corona Publishing, Co., Ltd. 
         [0195]    As described above, when topics are displayed by the conference support system  1 , the user can easily review the conference. That is, when the conference support system  1  displays “problems”, “action items”, and “determination items” associated with the topics, the user can efficiently summarize the conference. 
         [0196]    Furthermore, in the GUI illustrated in  FIG. 17 , the user may add candidates of “problem”, “action item”, and “determination item”. In this case, the conference support system  1  may extract statement contents related to the added candidates. For example, the extraction results are displayed in a screen as described below. 
         [0197]      FIG. 19  illustrates an example of displayed results extracted by the conference support system  1  according to the fourth embodiment of the present invention. For example, in the illustrated example, the conference support system  1  displays the results extracted from “action item” and “determination item”, in a text box INBX, etc. 
         [0198]    Furthermore, in the text box INBX, a statement content may be displayed in a full sentence format. Note that  FIG. 19  illustrates an example of displaying the statement contents grouped according to boundaries estimated by a method of estimating topic boundaries described below, including candidate statements of “action item”, in the text box INBX. That is, the illustrated text box INBX displays an abstract. On the other hand, the text box INBX may display a full text AL. That is, the text box INBX may switch to displaying the full text AL. Furthermore, for example, the abstract is generated from the full text AL. 
         [0199]    For example, the extraction result is generated by the fourth estimation method and the calculation of similarity described below. Specifically, first, the conference support system  1  expresses the statement contents, which have been grouped according to boundaries estimated by the method of estimating topic boundaries described below, and the candidates, with document vectors. Next, the conference support system  1  calculates the goodness of fit based on a cosine similarity, etc. Then, the conference support system  1  extracts, or associates together, statement contents and candidates having high similarities. These methods are realized by methods disclosed in, for example, “The basics and techniques of natural language process”, written by You Okuno, et al., and published by SHOEISHA Co., Ltd., and “http://www.cse.kyoto-su.ac.jp/˜g0846020/keywords/cosinSimilarity.html”. 
         [0200]    As a result, as illustrated, some of the statement contents, which are extracted from all of the statement contents, are displayed in the text box INBX. Furthermore, a plurality of statement contents, which are divided into groups of topics, are displayed in the text box INBX. 
         [0201]    Specifically, when there is a statement content that is determined to be a “problem”, a “determination item”, or an “action item” in a discussion about a certain topic, the statements indicating these types are extracted into the text box INBX. 
         [0202]    Furthermore, as illustrated, statements, which indicate a “problem”, a “determination item”, or an “action item”, related to statements indicating the extracted contents of “action item”, may be displayed in the text box INBX. 
         [0203]    Note that the conference support system  1  is not limited to being used when the conference ends. For example, the conference support system  1  may be used when the conference minutes are input after the conference ends. Furthermore, the distances between topics are preferably set such that missed topics and overlapping topics are reduced, by a method disclosed in, for example, “http://ryotakatoh.hatenablog.com/entry/2015/10/29/01 5502” and “http://tech-sketch.jp/2015/09/topic-model.html”. 
         [0204]    Note that the topics  1101  are generated as follows, for example. 
         [0205]      FIG. 20  is a flowchart of an example of generating topics by the conference support system  1  according to the fourth embodiment of the present invention. For example, when the illustrated process is performed, a screen as illustrated in  FIG. 18  is displayed by the conference support system  1 . 
         [0206]    In step S 31 , the conference support system  1  inputs a statement content. For example, after a conference for which the conference support system  1  has been used is ended, the conference support system  1  is in a state where the statement contents stated during the conference have been input. 
         [0207]    In step S 32 , the conference support system  1  estimates the topic boundary. Specifically, the topics are generated with respect to the groups of statement contents, and therefore, first, the conference support system  1  classifies the statement contents into groups. Therefore, the conference support system  1  estimates the topic boundary separating the groups. For example, the conference support system  1  estimates the topic boundary, such that statement contents having common contents or statements contents estimated to be highly related to each other, are included in the same group. 
         [0208]    For example, the topic boundary is estimated by the four methods described below. 
         [0209]    First, the first estimation method is a method of estimating a topic boundary when “a keyword explicitly indicating the transition of topic is detected”. Note that specific keywords, by which the transition of a topic can be estimated, are “to come to think of it” and “by the way”, etc. Furthermore, these keywords are set by the user of the conference support system  1  in advance, for example, before the conference. 
         [0210]    Furthermore, the second estimation method is a method of estimating a topic boundary when “a word indicating the replacement of the conversation leader is detected”. Specifically, in the second estimation method, when a word such as “a little while ago”, “the other day”, and “a long time ago”, etc., is stated, it is estimated that there is a topic boundary. Furthermore, these keywords are set by the user of the conference support system  1  in advance, for example, before the conference. 
         [0211]    Note that the first and second estimation methods are methods disclosed in “Real-time Topic Segmentation of information seeking chat”, written by Yuichi Miyamura, Takenobu Tokunaga, Department of Computer Science, Graduate School of Information Science and Engineering, Tokyo Institute of Technology, “http://www.cl.cs.titech.ac.jp/media/publication/632 .pdf”. 
         [0212]    Furthermore, the third estimation method is a method of estimating that there is a topic boundary when a statement content of a “question” type is stated. That is, when there is a statement content determined to be a “question”, the conference support system  1  estimates that there is a topic boundary. 
         [0213]    Furthermore, the fourth estimation method is a method of estimating a topic boundary by using “lexical cohesion”. In the fourth estimation method, for example, the “lexical cohesion” is calculated by using a thesaurus, etc. Specifically, first, the conference support system  1  detects a link formed by an assembly of statement contents having a “lexical cohesion” relationship, that is, a so-called “lexical chain”. Then, in the fourth estimation method, a “lexical cohesion” is considered to indicate a meaningful assembly of statement contents, and the portions corresponding to the starting point and the ending point of the “lexical chain” are estimated to be topic boundaries. For example, the fourth estimation method is a method disclosed in “Text segmentation based on lexical cohesion”, written by Takeo Honda and Manabu Okuruma, Japan Advanced Institute of Science and Technology, “https://ipsj.ixsq.nii.ac.jp/ej/index.php?action=page s_view_main&amp;active_action=repository_action_common_do wnload&amp;item_id=49265&amp;item_no=1&amp;attribute_id=1&amp;file_no=1&amp;page_id=13&amp;block_id=8”, and “The basics of natural language process”, written by Manabu Okumura and published by Corona Publishing, Co., Ltd. 
         [0214]    In step S 33 , the conference support system  1  generates a topic. That is, in step S 33 , the conference support system  1  generates topics at the respective topic boundaries estimated in step S 32 . Therefore, step S 33  is repeatedly performed for the number of groups that are separated by the topic boundaries. 
         [0215]    For example, a topic is generated by the two methods described below. 
         [0216]    The first generation method includes extracting a statement content that is a proper noun or a word that is not registered in a dictionary, that is, a so-called unknown word, from the statement contents grouped by the topic boundaries, and setting the extracted statement content as a topic. 
         [0217]    Furthermore, in the second generation method, first, nouns, verbs, or adjectives are extracted from the statement contents that have been grouped by topic boundaries. Next, in the second generation method, the conjugation of the extracted statement content is changed back to the original form. Then, a statement content that is frequently stated is set as a topic. In this way, the conference support system  1  can display a topic, etc. 
         [0218]    Note that all of or part of the processes according to embodiments of the present invention may be realized by programs for causing a computer for executing the procedures of the conference support method, described in a programming language or an object-oriented programming language such as an assembler, C, C++, Java (registered trademark), JavaScript (registered trademark), Ruby, and PHP: Hypertext Preprocessor, etc. That is, the program is a computer program for causing a computer of an information processing apparatus or the conference support system  1  including one or more information processing apparatuses to execute procedures. 
         [0219]    Furthermore, the program may be distributed by being stored in a computer-readable recording medium such as a read-only memory (ROM) or an Electrically Erasable Programmable ROM (EEPROM), etc. Furthermore, the recording medium may be an Erasable Programmable ROM (EPROM), a flash memory, a flexible disk, a compact disc ROM (CD-ROM), a compact disc-ReWritable (CD-RW), a Digital Versatile Disc-ROM (DVD-ROM) a DVD-Random Access Memory (DVD-RAM), a DVD-RW, a Blu-ray disc (registered trademark), a secure digital (SD) (registered trademark) card, or a magneto-optic (MO) disc, etc. Furthermore, the program may be distributed through an electric communication line. 
         [0220]    Furthermore, the conference support system  1  may include two or more information processing apparatuses that are connected to each other via a network, etc. That is, the conference support system  1  may perform all of or part of the processes in a distributed manner, in a parallel manner as in a duplex system, or in a redundant manner as in a dual system. 
         [0221]    According to one embodiment of the present invention, the efficiency of a conference can be increased. 
         [0222]    The conference support system, the conference support method, and the recording medium are not limited to the specific embodiments described in the detailed description, and variations and modifications may be made without departing from the spirit and scope of the present invention.