Patent Publication Number: US-2023145903-A1

Title: Method and apparatus for determining and presenting answers to content-related questions

Description:
BACKGROUND 
     Embodiments of the disclosure relate generally to content display systems. More specifically, embodiments of the disclosure relate to systems for determining and presenting answers to content-related questions. 
     SUMMARY 
     Some contemporary electronic content display systems not only display content for users, but also include functionality that allows users to pose, and receive answers to, various questions. This functionality allows users to speak or type queries into the display system, and receive answers. Thus, for instance, users can request other titles of actors in the content they are currently watching, can ask the system for the names of actors or actresses in a particular episode of content, or the like. 
     Such systems, while useful, are not without their drawbacks, though. Systems equipped with such functionality do not effectively answer many types of questions. In particular, such systems often have trouble handling queries for which they cannot readily find the answer, such as when the answer to a query does not exist. User-friendly methods of handling such queries are still desired. 
     Accordingly, to overcome the lack of flexibility in display systems for handling answers to queries, systems and methods are described herein for a computer-based process that determines the meaning of entered queries, searches for their answer, and if an answer exists, presents users options to determine the answer. Such options include an option to view the content in which the question is answered, an option to view the content at a later time, or an option to simply see or hear the answer. 
     In one embodiment, a query is first received from a user. The query may be any type of query, such as a voice query or a text query. It is then determined whether this query represents a question presented in an episode that already exists, but has not yet been viewed by that user. Thus, for example, a user may be catching up on a series that has already been released but that he or she has not yet completed. The user may have viewed part of the series, and pose a question regarding a later episode in that series. Upon determining that the user&#39;s query represents a question with an answer presented in an existing later episode that the user has not yet viewed, the system may determine the episode that answers the user&#39;s question, and present the user with options for learning the answer. For instance, the system may present the user an option to view the content in which the question is answered, an option to view the content at a later time, or an option to simply see or hear the answer. Any one or more of these options may be presented. 
     To answer the question posed by the user, any sources may be analyzed. For instance, any electronic record may be searched. That is, any source accessible by an electronic search may be retrieved and analyzed to determine the answer. This may include any episode of the series or any associated metadata, any electronically searchable document, file, web page, or the like. 
     Once retrieved, any such electronic records may be analyzed to determine their meaning, and more specifically to determine whether they contain an answer to the user&#39;s question. The system may accomplish this by determining a natural language understanding of the retrieved records. 
     Some questions may not have an existing answer. For example, a question posed may not be answered until a later, yet to be aired episode of the content reveals the answer. In these and other cases, the question may be stored at least until the answer is found. Such storage can be performed in any manner. For instance, keywords of the question or the user&#39;s query may be determined and stored. 
     As the user presumably does not know the answer to his or her question when it is posed, records that contain an answer to the question may be deemed spoilers that the user may not wish to view until he or she has viewed the corresponding episode of the content. Electronic records that have been deemed to contain the answer to a stored question may thus be identified or labeled as spoiler records, and kept from the user at least until the episode of content containing the answer has been viewed, the user views the answer, or the like. 
     Translating the query into a question, or determining the meaning of the user&#39;s query, may be accomplished in any manner. As one example, a machine learning method may be employed to determine both whether the query poses a question, and if so, the meaning of the user&#39;s query. Any machine learning method may be employed to accomplish either of these determinations, such as a classification method in which a query may be classified as a question, and/or classified as having a particular meaning. Any classification method or model may be employed, such as any one or more of a random forest classifier, a support vector machine, a naïve Bayes classifier, a conditional random field classifier, a hidden Markov model, a recurrent neural network, or a convolutional neural network. 
     In another embodiment, users may submit queries asking questions that the latest content has not yet answered. In such an embodiment, a received query is processed to determine whether it represents a question having an answer not yet revealed in the content, e.g., whether the answer does not yet exist as of the latest episode of the content. Upon determining that the answer to the question has not yet been revealed in the content, an indicator of the query may be stored and used to initiate electronic searches for the answer. Searches may be conducted until the answer is found, at which point various options for viewing the answer may be presented to the user. As in previous embodiments, users may be presented an option to view the content in which the question is answered, an option to view the content at a later time, or an option to simply see or hear the answer. Any one or more of these options may be presented. 
     Also as in previous embodiments, records that contain the answer to the question may be deemed spoilers that the user may not wish to view until he or she has viewed the corresponding episode of the content. Electronic records that have been deemed to contain the answer to the stored question may thus be identified or labeled as spoiler records, and kept from the user at least until the episode of content containing the answer has been viewed, the user views the answer, or the like. Information associated with the answer may also be determined from the records, such as episode and/or scene numbers in which the answer arises. This determined information may be stored along with the query indicator, for presentation to the user as desired. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       The above and other objects and advantages of the disclosure will be apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which: 
         FIG.  1    illustrates exemplary operation of a system for presenting answers to content-related questions, in accordance with embodiments of the disclosure; 
         FIG.  2    is a block diagram of an illustrative user equipment device in accordance with embodiments of the disclosure; 
         FIG.  3    is a block diagram of an illustrative user equipment device in accordance with some embodiments of the disclosure; 
         FIG.  4    is a block diagram of an illustrative system for presenting answers to content-related questions, in accordance with some embodiments of the disclosure; 
         FIG.  5    is a generalized embodiment of an illustrative content retrieval server constructed for use according to embodiments of the disclosure; 
         FIGS.  6 - 7    are flowcharts illustrating processing steps for determining and presenting answers to content-related questions, in accordance with embodiments of the disclosure; and 
         FIGS.  8 - 10    are flowcharts illustrating processing steps for determining and presenting answers to content-related questions, in accordance with further embodiments of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     In one embodiment, the disclosure relates to systems and methods for determining the answers to user queries regarding content, and presenting options for the user to view the answers. Searches are conducted to determine the answer to a query and, once the answer is found, various options are presented to the user, allowing the user the choice to view the answer in multiple different ways. 
       FIG.  1    illustrates exemplary operation of a system for presenting answers to content-related questions, in accordance with embodiments of the disclosure. Here, a user may watch episodes of content on his or her content display device  10 . During or after viewing content, the user may enter a query into an electronic interface  20 , such as a query as to who killed a particular character in the content. In this example, the answer to the user&#39;s question has already been revealed in a previously-aired episode. That is, the answer already exists. Accordingly, the answer, i.e., the identity of the episode in which the answer is presented, is retrieved and options for viewing the answer  40  are presented on display  30 . The options include an option to immediately watch the episode containing the answer to the query, an option to watch the episode at a later time, and an option to simply have the answer presented, such as in text form displayed on display  30 . 
       FIG.  2    shows generalized embodiments of illustrative user equipment device  200  that may be used in answering content-related questions according to embodiments of the disclosure. Each display  10 ,  30  of  FIG.  1    may be a user equipment device  200 . As one example, user equipment device  200  may be a smartphone device or a remote control. In another example, user equipment system  201  may be a user television equipment system. User television equipment system  201  may include a set-top box  216 . Set-top box  216  may be communicatively connected to speaker  214  and display  212 . In some embodiments, display  212  may be a television display or a computer display. In some embodiments, set top box  216  may be communicatively connected to user interface input  210 . In some embodiments, user interface input  210  may be a remote-control device. Set-top box  216  may include one or more circuit boards. In some embodiments, the circuit boards may include processing circuitry, control circuitry, and storage (e.g., RAM, ROM, hard disk, removable disk, etc.). In some embodiments, circuit boards may include an input/output path. More specific implementations of user equipment devices are discussed below in connection with  FIGS.  3  and  4   . 
     Each one of user equipment device  200  and user equipment system  201  may receive content and data via input/output (hereinafter “I/O”) path  202 . I/O path  202  may provide content (e.g., broadcast programming, on-demand programming, Internet content, content available over a local area network (LAN) or wide area network (WAN), and/or other content) and data to control circuitry  204 , which includes processing circuitry  206  and storage  208 . Control circuitry  204  may be used to send and receive commands, requests, and other suitable data using I/O path  202 . I/O path  202  may connect control circuitry  204  (and specifically processing circuitry  206 ) to one or more communications paths (described below). I/O functions may be provided by one or more of these communications paths but are shown as a single path in  FIG.  2    to avoid overcomplicating the drawing. 
     Control circuitry  204  may be based on any suitable processing circuitry such as processing circuitry  206 . As referred to herein, processing circuitry should be understood to mean circuitry based on one or more microprocessors, microcontrollers, digital signal processors, programmable logic devices, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), etc., and may include a multi-core processor (e.g., dual-core, quad-core, hexa-core, or any suitable number of cores) or supercomputer. In some embodiments, processing circuitry may be distributed across multiple separate processors or processing units, for example, multiple of the same type of processing units (e.g., two Intel Core i7 processors) or multiple different processors (e.g., an Intel Core i5 processor and an Intel Core i7 processor). In some embodiments, control circuitry  204  executes instructions for an application program stored in memory (e.g., storage  208 ). Specifically, control circuitry  204  may be instructed by the application to perform the functions discussed above and below. For example, the application may provide instructions to control circuitry  204  to generate a content curation interface. In some implementations, any action performed by control circuitry  204  may be based on instructions received from the interface. 
     Memory may be an electronic storage device provided as storage  208  that is part of control circuitry  204 . As referred to herein, the phrase “electronic storage device” or “storage device” should be understood to mean any device for storing electronic data, computer software, or firmware, such as random-access memory, read-only memory, hard drives, optical drives, digital video disc (DVD) recorders, compact disc (CD) recorders, BLU-RAY disc (BD) recorders, BLU-RAY 2D disc recorders, digital video recorders (DVR, sometimes called a personal video recorder, or PVR), solid state devices, quantum storage devices, gaming consoles, gaming media, or any other suitable fixed or removable storage devices, and/or any combination of the same. Storage  208  may be used to store various types of content described herein as well as media guidance data described above. Nonvolatile memory may also be used (e.g., to launch a boot-up routine and other instructions). Cloud-based storage, described in relation to  FIG.  4   , may be used to supplement storage  208  or instead of storage  208 . 
     A user may send instructions to control circuitry  204  using user input interface  210 . User input interface  210  may be any suitable user interface, such as a remote control, mouse, trackball, keypad, keyboard, touchscreen, touchpad, stylus input, joystick, voice recognition interface, or other user input interfaces. Display  212  may be provided as a stand-alone device or integrated with other elements of each one of user equipment device  200  and user equipment system  201 . For example, display  212  may be a touchscreen or touch-sensitive display. In such circumstances, user input interface  210  may be integrated with or combined with display  212 . Display  212  may be one or more of a monitor, a television, a liquid crystal display (LCD) for a mobile device, amorphous silicon display, low temperature poly silicon display, electronic ink display, electrophoretic display, active matrix display, electro-wetting display, electrofluidic display, cathode ray tube display, light-emitting diode display, electroluminescent display, plasma display panel, high-performance addressing display, thin-film transistor display, organic light-emitting diode display, surface-conduction electron-emitter display (SED), laser television, carbon nanotubes, quantum dot display, interferometric modulator display, or any other suitable equipment for displaying visual images. 
     The answer determination and presentation functions described above may be implemented as a separate application program, or as a part of another application such as an electronic program guide or other content display application. The answer determination and presentation functions and their application(s) may be implemented using any suitable architecture. For example, it may be a stand-alone application wholly implemented on each one of user equipment device  200  and user equipment system  201 . In such an approach, instructions of the application are stored locally (e.g., in storage  208 ), and data for use by the application is downloaded on a periodic basis (e.g., from an out-of-band feed, from an Internet resource, or using another suitable approach). Control circuitry  204  may retrieve instructions of the application from storage  208  and process the instructions to generate any of the displays discussed herein. Based on the processed instructions, control circuitry  204  may determine what action to perform when input is received from input interface  210 . For example, movement of a cursor on a display up/down may be indicated by the processed instructions when input interface  210  indicates that an up/down button was selected. 
       FIG.  3    illustrates user equipment device  200  in block diagram form. In the representation of  FIG.  3   , device  300 , input/output  302 , user input interface  310 , display  312 , speakers  314 , control circuitry  304 , processing circuitry  306 , and storage  308  may correspond to embodiments of user equipment device  200 , input/output path of circuit boards of set-top box  216 , user interface input  210 , display  212 , speaker  214 , circuit boards of set-top box  216 , circuit boards of set-top box  216 , and storage on circuit boards of set-top box  216 , respectively. As shown in  FIG.  3   , processing circuitry  306  executes commands retrieved from storage  308 , input/output path  302 , and/or user input interface  310 , and transmits results to display  312 ,  314 , and/or output path  302 . Such commands may include commands for receiving and deteiiiiining the meaning of entered queries, initiating electronic searches to answer the queries, and presenting answer options to the user. 
     Each one of user equipment device  200  and user equipment system  201  of  FIG.  2    can be implemented in system  400  of  FIG.  4    as means for consuming content  402 , system controller  404 , wireless user communications device  406 , or any other type of user equipment suitable for accessing content, such as a non-portable gaming machine. For simplicity, these devices may be referred to herein collectively as user equipment or user equipment devices and may be substantially similar to user equipment devices described above. User equipment devices, on which an answer determination application may be implemented, may function as a stand-alone device or may be part of a network of devices. Various network configurations of devices may be implemented and are discussed in more detail below. 
     A user equipment device utilizing at least some of the system features described above in connection with  FIG.  2    may not be classified solely as means for consuming content  402 , system controller  404 , or a wireless user communications device  406 . For example, means for consuming content  402  may, like some system controller  404 , be Internet-enabled allowing for access to Internet content, while system controller  404  may, like some television equipment  402 , include a tuner allowing for access to television programming. The content display application or program guide may have the same layout on various different types of user equipment or may be tailored to the display capabilities of the user equipment. For example, on system controller  404 , the guidance application may be provided as a website accessed by a web browser. In another example, the guidance application may be scaled down for wireless user communications devices  406 . 
     In system  400 , there is typically more than one of each type of user equipment device but only one of each is shown in  FIG.  4    to avoid overcomplicating the drawing. In addition, each user may utilize more than one type of user equipment device and also more than one of each type of user equipment device. 
     The user equipment devices may be coupled to communications network  414 . Namely, means for consuming content  402  and wireless user communications device  406  are coupled to communications network  414  via communications paths  408  and  412 , respectively. Communications network  414  may be one or more networks including the Internet, a mobile phone network, mobile voice or data network (e.g., a 4G or LTE network), cable network, public switched telephone network, or other types of communications network or combinations of communications networks. Paths  408  and  412  may separately or together include one or more communications paths, such as a satellite path, a fiber-optic path, a cable path, a path that supports Internet communications (e.g., IPTV), free-space connections (e.g., for broadcast or other wireless signals), or any other suitable wired or wireless communications path or combination of such paths. Path  412  is drawn with dotted lines to indicate that in the exemplary embodiment shown in  FIG.  4    it is a wireless path and path  408  is drawn as a solid line to it is a wired path (although these paths may be wireless paths, if desired). Communications with the user equipment devices may be provided by one or more of these communications paths but are shown as a single path in  FIG.  4    to avoid overcomplicating the drawing. 
     Although communications paths are not drawn between user equipment devices, these devices may communicate directly with each other via communication paths, such as those described above in connection with paths  408  and  412 , as well as other short-range point-to-point communication paths, such as USB cables, IEEE 1394 cables, wireless paths (e.g., Bluetooth, infrared, IEEE 402-11x, etc.), or other short-range communication via wired or wireless paths. BLUETOOTH is a certification mark owned by Bluetooth SIG, INC. The user equipment devices may also communicate with each other directly through an indirect path via communications network  414 . 
     System  400  includes content source  416  coupled to communications network  414  via communication path  420 . Path  420  may include any of the communication paths described above in connection with paths  408 ,  410 , and  412 . Communications with the content source  416  may be exchanged over one or more communications paths but are shown as a single path in  FIG.  4    to avoid overcomplicating the drawing. In addition, there may be more than one of each of content source  416 , but only one is shown in  FIG.  4    to avoid overcomplicating the drawing. (The different types of each of these sources are discussed below.) If desired, content source  416  may be integrated as one source device. Although communications between source  416  and user equipment devices  402 ,  404 , and  406  are shown as occurring through communications network  414 , in some embodiments, source  416  may communicate directly with user equipment devices  402 ,  404 , and  406  via communication paths (not shown) such as those described above in connection with paths  408  and  412 . Also included is a records server  428  in electronic communication with content retrieval device  426 . Records server  428  may be any computing device containing any electronic records or source of information, such as social media communications, electronic mail records, web pages, any other documents, or the like. More than one records server  428  may be present, although only one is shown in  FIG.  4    for simplicity. 
     Content retrieval device  426  is coupled to communications network  414  via communication path  424  and coupled to content source  416  via communication path  440 . Paths  424  and  440  may include any of the communication paths described above in connection with paths  408  and  412 . Content retrieval device  426  may obtain or receive media content from content source  416  via communication path  440 , may determine the meaning of user queries, may initiate or conduct electronic searches of content source  416  and other sources over communications network  414  to determine the answers to entered queries, and may present answer options to users via devices  402 ,  406 . 
     Content source  416  may include one or more types of content distribution equipment including a television distribution facility, cable system headend, satellite distribution facility, programming sources (e.g., stored content, television broadcasters, such as NBC, ABC, HBO, etc.), intermediate distribution facilities and/or servers, Internet providers, on-demand media servers, and other content providers. NBC is a trademark owned by the National Broadcasting Company, Inc., ABC is a trademark owned by the American Broadcasting Company, Inc., and HBO is a trademark owned by the Home Box Office, Inc. Content source  416  may be the originator of content (e.g., a television broadcaster, a webcast provider, etc.) or may not be the originator of content (e.g., an on-demand content provider, an Internet provider of content of broadcast programs for downloading, etc.). Content source  416  may include cable sources, satellite providers, on-demand providers, Internet providers, over-the-top content providers, or other providers of content. Content source  416  may also include a remote media server used to store different types of content (including video content selected by a user), in a location remote from any of the user equipment devices. 
     Content and/or data delivered to user equipment devices  402 ,  404 , and  406  may be over-the-top (OTT) content. OTT content delivery allows Internet-enabled user devices, including any user equipment device described above, to receive content that is transferred over the Internet, including any content described above, in addition to content received over cable or satellite connections. OTT content is delivered via an Internet connection provided by an Internet service provider (ISP), but a third party distributes the content. The ISP may not be responsible for the viewing abilities, copyrights, or redistribution of the content, and may only transfer IP packets provided by the OTT content provider. Examples of OTT content providers include YouTube, Netflix, and Hulu, which provide audio and video via IP packets. YouTube is a trademark owned by Google Inc., Netflix is a trademark owned by Netflix Inc., and Hulu is a trademark owned by Hulu, LLC. OTT content providers may additionally or alternatively provide curation data described above. In addition to content and/or data, providers of OTT content can distribute curation applications (e.g., web-based applications or cloud-based applications), or the content can be displayed by curation applications stored on the user equipment device. 
     System  400  is intended to illustrate a number of approaches, or network configurations, by which user equipment devices and sources of content and other electronic records may communicate with each other for the purpose of accessing content and providing answers to queries. The embodiments described herein may be applied in any one or a subset of these approaches, or in a system employing other approaches for interpreting queries and delivering corresponding answers. 
     Cloud resources may be accessed by a user equipment device using, for example, a web browser, a media guidance application, a desktop application, a mobile application, and/or any combination of access applications of the same. The user equipment device may be a cloud client that relies on cloud computing for application delivery, or the user equipment device may have some functionality without access to cloud resources. For example, some applications running on the user equipment device may be cloud applications, i.e., applications delivered as a service over the Internet, while other applications may be stored and run on the user equipment device. In some embodiments, a user device may receive content from multiple cloud resources simultaneously. For example, a user device can stream audio from one cloud resource while downloading content from a second cloud resource. Or a user device can download content from multiple cloud resources for more efficient downloading. In some embodiments, user equipment devices can use cloud resources for processing operations such as the processing operations performed by processing circuitry described in relation to  FIG.  5   . 
       FIG.  5    is a generalized embodiment of an illustrative content retrieval device or server  426  constructed for use according to embodiments of the disclosure. Here, device  500  may serve as a content retrieval device or server. Device  500  may receive content and data via I/O paths  502  and  504 . I/O path  502  may provide content and data to the various user equipment devices  300 , while I/O path  504  may provide data to, and receive content from, one or more content sources  416 . Like the user equipment device  300 , the device  500  has control circuitry  506  which includes processing circuitry  508  and storage  510 . The control circuitry  506 , processing circuitry  508 , and storage  510  may be constructed, and may operate, in similar manner to the respective components of user equipment device  300 . 
     Storage  510  is a memory that stores a number of programs for execution by processing circuitry  508 . In particular, storage  510  may store a media guide module  512  whose execution implements a media guide or interface allowing users to select and view content, as well as enter queries and view answers to those queries. Storage  510  also stores a search module  514  for initiating or carrying out electronic searches for answers to queries entered through media guide module  512 , as well as a query determination module  516  for determining the meaning of entered queries. Storage  518  is memory available for any purpose, and is available for storage of queries, keywords, spoiler records or indications thereof, content, or the like. 
     The device  500  may be any electronic device capable of transmitting content for display and supporting corresponding applications. For example, the device  500  may be a server, or a networked in-home smart device connected to a home modem and thereby to various devices  300 . The device  500  may alternatively be a laptop computer or desktop computer configured as above. 
       FIG.  6    is a flowchart illustrating processing steps for determining and presenting answers to content-related questions, in accordance with embodiments of the disclosure. The process of this embodiment begins when a user enters a query regarding content, e.g., content that he or she may be viewing, or may have recently viewed. The query may be entered through media guide  512  executed on a user equipment device  300  and may be entered in any manner, such as by text characters or by voice. The query is transmitted from user equipment device  300  to content retrieval server  426 , where it is received (Step  600 ). The query determination module  516  of content retrieval server  426  then determines whether the received query represents a question having an answer presented in an existing episode that the user has not yet viewed (Step  610 ). To accomplish this, query determination module  516  may first determine whether the query poses a question, and if so, then determines the meaning of the question. Each of these determinations may be carried out in any manner. For example, the first determination may be carried out by parsing the text of the query to determine its grammatical structure, by one or more machine learning methods for classifying an input query as a question, or the like. Such machine learning methods and models may include use of one or more of a random forest classifier, a support vector machine, a naïve Bayes classifier, a conditional random field classifier, a hidden Markov model, a recurrent neural network, or a convolutional neural network. The second determination may be carried out by any one or more natural language processing methods for determining the meaning of a text string. These methods may include any natural language processing or understanding method, including rule-based methods, statistical methods, and machine learning methods. Such methods are known. 
     If the query analyzed in Step  610  is not a question, or is determined to be a question unrelated to content, the content retrieval server  426  issues an error message indicating that no question is posed, or may search for and present the answer to the question even though it is not related to content that the system can display (Step  620 ). On the other hand, if the query analyzed in Step  610  is determined to be a question related to content, the search module  514  initiates an electronic search for the answer to the question (Step  630 ). Any type of electronic search may be performed, including Internet searches, searches of content in content source  416 , or searches of any electronic records residing on any one or more records servers  428 . Searches may be performed in any manner, such as by keywords extracted from the received query. 
     When the search of Step  630  returns results, content retrieval server  426  scans the results to determine whether an answer was retrieved (Step  640 ), such as by determining the natural language meaning of the text of the records, documents, web pages, or the like that correspond to the returned results. Determination of meaning may be accomplished using any of the natural language processing or understanding methods described above. If Step  640  determines that no answer was retrieved, i.e., the search did not return any record containing an answer to the question posed by the query, the process may return to Step  630  to perform another electronic search at a later time. This process may continue, with searches performed from time to time, i.e., repeatedly but not necessarily periodically, at any one or more intervals of time, until an answer is found. Searches may be repeated in any manner, such as at regular intervals, at irregular intervals, randomly, in response to certain events, or in any other manner. 
     If an answer is retrieved, the media guide module  514  determines, from the answer, the identity of the episode containing or revealing the answer. This may be accomplished in any manner, including parsing electronic records or content determined to contain the answer, or their metadata, to determine the date the records were created, and comparing the date to air dates of episodes of the content (as determined by, for example, associated metadata or by the text of the corresponding electronic records). Thus, for example, a large number of retrieved records (such as social media posts) each containing several keywords of the query, or each determined by natural language analysis to contain or refer to the answer, where these records were generated on the same day as an episode is aired, may be deemed to indicate that the episode aired on that day is the episode containing the answer. Similarly, metadata of each episode may be scanned to detemiine whether it contains the answer, such as by containing several keywords of the query, a text description of the episode that natural language analysis indicates reveals the answer, or the like. 
     The media guide module  514  may then transmit various options for display to the user on his or her device  300  (Step  650 ). Any options are contemplated. Examples include an option to immediately view the episode corresponding to the answer, an option to view the episode corresponding to the answer at a later time, and an option to view the answer itself, e.g., in text or voice form. Options may be displayed in any manner, such as in an area of a media guide screen, as a popup window, or the like, and may be selectable by the user. Selecting the option to immediately view the episode corresponding to the answer may take the user to a home page of that episode, allowing the user to select the episode for playback. Selecting the option to view the episode corresponding to the answer at a later time may allow the user to enter a date and time at which the episode will be displayed, may download the episode to the user&#39;s device  300  for viewing later, or the like. Selecting the option to view the answer itself may result in display of the answer in text form, in voice form, or in any other form desired by the user. 
     It may be assumed that users pose queries when they do not know the answer to a particular question. Accordingly, users may not wish to know the answer to their question prior to actually viewing the corresponding episode of content. Content retrieval server  426  may thus flag retrieved search results as containing potential spoilers, warning the user to avoid them to avoid learning the answer prematurely.  FIG.  7    is a flowchart illustrating further details of an exemplary spoiler identification process in accordance with embodiments of the disclosure. The process steps of  FIG.  7    may be performed, for example, after Step  630  of  FIG.  6   , although it is contemplated that performance of the steps of  FIG.  7    may be carried out at any time. 
     The process of  FIG.  7    begins when the content retrieval server  426  retrieves electronic records responsive to an electronic search (Step  700 ), such as in response to Step  630  of  FIG.  6   . The content retrieval server  426  may then determine a natural language understanding of these retrieved records (Step  710 ), such as by use of any natural language processing or understanding method, as described above. Those records whose natural language understandings are deemed to contain the answer to the user&#39;s query may be identified as spoiler records (Step  720 ), as they answer the user&#39;s question while the user is presumed not to have viewed the corresponding episode yet. Indicators of such records may be stored in storage  518 , and compared to any content or records the user may view via media guide  512 . Thus, for example, any content flagged as containing a spoiler may prompt the content retrieval server  426  to issue a warning to the user if the user selects the content for viewing. In this manner, users may be warned against watching not only the content episode in which the answer to their query first arises, but may also be warned against watching, for instance, other episodes of content that may happen to mention the answer. 
       FIG.  8    is a flowchart illustrating processing steps for determining and presenting answers to content-related questions, in accordance with further embodiments of the disclosure. In certain embodiments of the disclosure, users may be caught up to a series of content, i.e., they may be currently watching the latest episode, and may have questions that the series has not yet answered. For example, the user may suspect that a currently-alive character will die soon, or may have heard rumors to that effect, or may be under the mistaken belief that the character has died. The user may thus enter a query into electronic interface  20  asking who killed the character. The content retrieval server  426  determines that no answer yet exists, as above by conducting an electronic search with no satisfactory results, or by retrieving results whose natural language interpretations indicate that the character is still alive. As a result, the content retrieval server  426  sends a message for display to the user, indicating that the answer to their question is presently unknown. The content retrieval server  426  may also optionally ask the user whether he or she would like their question saved for later, i.e., saved for continued searching in case the answer appears at a later time. If the user elects to save their question, the content retrieval server  426  searches repeatedly for the answer as above. When the answer is found, the content retrieval server  426  displays options for revealing the answer, such as an option to watch the corresponding episode immediately, to watch the corresponding episode at some later time, or to view the answer directly. 
     In similar manner to that of  FIG.  6   , the process of  FIG.  8    begins when a user enters a query regarding content, e.g., content that he or she may be viewing, or may have recently viewed. The query may be entered through media guide  512  executed on a user equipment device  300  and may be entered in any manner, such as by text characters or by voice. The query is transmitted from user equipment device  300  to content retrieval server  426 , where it is received (Step  900 ). The query determination module  516  of content retrieval server  426  then determines whether the received query represents a question having an answer not yet revealed in the content (Step  910 ). To accomplish this, query determination module  516  may first determine whether the query poses a question, and if so, then determines the meaning of the question. Each of these determinations may be carried out as described above in connection with Step  610 . For example, the first determination may be carried out by parsing the text of the query to determine its grammatical structure, by one or more machine learning methods for classifying an input query as a question, or the like. Such machine learning methods and models may include use of one or more of a random forest classifier, a support vector machine, a naïve Bayes classifier, a conditional random field classifier, a hidden Markov model, a recurrent neural network, or a convolutional neural network. The second determination may be carried out by any one or more natural language processing methods for determining the meaning of a text string. These methods may include any natural language processing or understanding method, including rule-based methods, statistical methods, and machine learning methods. Such methods are known. 
     If the query analyzed in Step  910  is not a question, or is determined to be a question unrelated to content, the content retrieval server  426  issues an error message indicating that no question is posed, or may search for and present the answer to the question even though it is not related to content that the system can display (Step  920 ). On the other hand, if the query analyzed in Step  910  is determined to be a question related to content, the content retrieval server  426  stores the query or some indicator thereof that represents the query (Step  930 ), and conducts an electronic search for the answer (Step  940 ). Recall that, at the time of the query, no answer exists yet, i.e., the content has not presented an answer to the user&#39;s question. Accordingly, while search module  514  initiates an electronic search for the answer to the question, initially no answer is found. A check for whether an answer has been determined (Step  950 ) thus initially results in a negative result, and the process returns to Step  940 . Searches continue from time to time, e.g., at any one or more intervals, periodically or otherwise. Any type of electronic search may be performed, including Internet searches, searches of content in content source  416 , or searches of any electronic records residing on any one or more records servers  428 . Searches may be perforated in any manner, such as by keywords extracted from the received query. The meaning of returned results may be determined using any of the natural language processing or understanding methods described above. 
     When the search of Step  940  does return a positive result, i.e., a new episode of content eventually reveals the answer and this revelation is detected in search results, the media guide module  514  determines the identity of the episode containing or revealing the answer. This may be accomplished in any of the ways described above in connection with Step  650 . The media guide module  514  may then transmit various options for display to the user on his or her device  300  (Step  960 ). Any options are contemplated. Examples include an option to immediately view the episode corresponding to the answer, an option to view the episode corresponding to the answer at a later time, and an option to view the answer itself, e.g., in text or voice form. Options may be displayed in any manner, such as in an area of a media guide screen, as a popup window, or the like, and may be selectable by the user. 
     The user may wish to avoid learning the answer to his or her question prior to watching the corresponding episode of content. That is, users may wish to avoid spoilers before they view the answer for themselves.  FIG.  7   , described above, illustrates one illustrative process for identifying spoiler records. Embodiments of the disclosure encompass other spoiler identification processes, however.  FIG.  10    is a flowchart illustrating process steps for identifying spoiler records in accordance with a further embodiment of the disclosure. The process steps of  FIG.  10    may be performed, for example, after Step  950  of  FIG.  9   , although it is contemplated that performance of the steps of  FIG.  10    may be carried out at any time. 
     Once the content retrieval server  426  finds the answer to the user&#39;s question, such as in Step  950  of  FIG.  9   , the content retrieval server  426  may then determine spoiler entities, or entities associated with the answer to the query (Step  1000 ). The information stored at Step  930  may contain the keywords used or otherwise indicated by the query. Spoiler entities may thus be any of these stored keywords. For example, spoiler entities may be any of the characters or other entities listed in the user&#39;s query, such as the name of the character killed, the name of the killer, or the like. Additional spoiler entities besides simply those listed in query keywords may also be identified in any manner, such as by use of a graph of terms corresponding to a particular series of content, other keywords commonly arising in returned search results, and the like. Embodiments of the disclosure contemplate determination of spoiler entities in any manner. 
     The content retrieval server  426  then determines those electronic records containing spoiler entities (Step  1010 ). That is, for the electronic search identifying the answer to the user&#39;s question, those search results containing spoilers are identified. Results may be identified as containing spoilers according to any metric, e.g., results may be identified as containing spoilers if they contain any spoiler entity, more than one spoiler entity, every spoiler entity, a determined natural language interpretation corresponding to the answer, or the like. Those results identified as containing spoilers are then labeled or flagged as spoilers (Step  1020 ), whereupon the content retrieval server  426  may take any appropriate action. For example, any content flagged as containing a spoiler may prompt the content retrieval server  426  to issue a warning to the user if the user selects the content for viewing. In this manner, users may be warned against watching not only the content episode in which the answer to their query first arises, but may also be warned against watching, for instance, episodes of unrelated content that may happen to mention the answer, or viewing any records such as social media posts that reveal the answer. 
     The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the disclosure. However, it will be apparent to one skilled in the art that the specific details are not required to practice the methods and systems of the disclosure. Thus, the foregoing descriptions of specific embodiments of the present invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. For example, search queries may be deteimined to be questions, and their natural language meanings may be determined, in any manner. Additionally, any electronic records may be searched, such as social media posts, documents, web pages, and the like. Spoiler entities may be determined in any manner, whether by query keyword, determination of any entities related to those keywords, or in any other manner. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best utilize the methods and systems of the disclosure and various embodiments with various modifications as are suited to the particular use contemplated. Additionally, different features of the various embodiments, disclosed or otherwise, can be mixed and matched or otherwise combined so as to create further embodiments contemplated by the disclosure.