Patent Publication Number: US-2002004795-A1

Title: Document reference service

Description:
FIELD OF THE INVENTION  
       [0001] The present invention relates to a service for finding items of interest in documents. As used herein, the term “document” is to be understood to be unrestricted as regards length and medium on which it is available to a subscriber to the service; thus the term document specifically includes both physical and electronic documents.  
       BACKGROUND OF THE INVENTION  
       [0002] It is a truism that a reference book is only as good as its index. This truism is an expression of the fact that unless information in a book or other document is capable of being retrieved when wanted, it is worthless. This applies equally to the general store of information that individuals and other parties have in the collection of documents they hold—unless there is some effective way of accessing the information about a topic of interest, the document collection is for all practical purposes worthless.  
       [0003] Of course, many effective catalogue and indexing systems exist. Furthermore, with the advent of documents in electronic form and the availability of high-speed search tools for searching such documents, the tools exist for rapid retrieval of relevant information. Despite this, most individuals and organisations continue to flounder amongst the information assets they have available, largely because they have neither the time nor resources to organise a proper system for accessing their information assets effectively.  
       [0004] It is an object of the present invention to provide a way for parties to more effectively access their information assets.  
       SUMMARY OF THE INVENTION  
       [0005] According to the present invention, there is provided a document reference service method provided by a service system accessible over a communications infrastructure, the method comprising the following steps carried out under the control of the service system:  
       [0006] keeping both a record identifying documents already held by a party independently of the service system and a document database including copies of those documents or indexes therefore;  
       [0007] receiving a request from said party over the communications infrastructure, the request including an interest indicator;  
       [0008] electronically searching the document database to ascertain document reference data indicative of where, in the documents held by the requesting party, as indicated by said record, information relevant to the interest indicator can be found, and  
       [0009] returning the reference data to the requesting party.  
       [0010] The service is, for example, provided by a bookstore in respect of books it has sold to the party.  
       [0011] According to another aspect of the present invention, a document reference service system comprising:  
       [0012] a communications interface enabling a remote party to access the service system;  
       [0013] a storage subsystem keeping both a record identifying documents already held by said remote party independently of the service system and a document database including copies of those documents or indexes therefore;  
       [0014] a search engine for electronically searching the document database to ascertain document reference data indicative of where, in the documents held by said party, as indicated by said record, information relevant to a specified interest indicator can be found, and  
       [0015] a request handler for receiving from said party, via the communications interface, a request including an interest indicator, the request processor being responsive to said request to use the search engine to determine document reference data relevant to the interest indicator received in the request and to return this document reference data to the remote party via the communications interface: re is provided. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0016] A document reference service method and system both embodying the invention will now be described, by way of non-limiting example, with reference to the accompanying diagrammatic drawings, the sole FIGURE of which (FIG. 1) is a diagrammatic representation of the overall system. 
    
    
     BEST MODE OF CARRYING OUT THE INVENTION  
     [0017] Referring to the drawing, a user  5  has a collection of documents in the form of physical books  6  and electronic books  7 . The user  5  may be an individual or an organisation. In the present example, the user  5  has purchased the books  6 ,  7  from a bookstore  30  through various channels, including by personal attendance (arrow  32 ), by telephone or mail order (arrow  33 ), or by on-line purchase (arrow  34 ) such as through a website run by bookstore  30 .  
     [0018] The details of the books purchased by user  5  have been recorded by the bookstore in its data processing system  31 .  
     [0019] User  5  decides to subscribe to a document reference service offered by the bookstore and available via a service system  40 . This service system may be run by the bookstore itself or provided by a third party. To set up the document reference service for the user  5 , a list of the books  6 ,  7  purchased by the user from the bookstore  30  is copied from the data system of the bookstore to a subscriber inventory database  42  of the service system (see arrow  35 ). Database  42  maintains for each subscriber (e.g. user  5 ) a record of the documents they currently hold (this record may or may not be complete). As well as receiving document information from the bookstore data system  31 , the database can also receive input from the user  5  about other documents it holds (see arrow  36 ) that were purchased form other sources (for commercial reasons, the bookstore  30  may decide not to offer this facility, thereby encouraging purchase from itself).  
     [0020] For each document listed in the database  42 , the service system obtains (or seeks to obtain) an electronic copy of the document or of an index for the document, these items being provided, for example, by the document publisher (arrow  37 ) and stored in document database  41 .  
     [0021] When user  5  wishes to find out information about a particular item of interest, the user sends a search request to the document reference service  40  over an appropriate communication path. In FIG. 1, a number of different paths are shown. Thus, data-based requests can be made to a data interface  44  of the service system (for example, a web server):  
     [0022] using PC  13  that connects to the data interface  44  via internet  10  (arrow  20 );  
     [0023] using a WAP-enabled cell phone  15  connecting via Public Land Mobile Network PLMN  12  and internet  10  to the data interface  44  of service system  40  (arrow  22 );  
     [0024] using a PC  18  with a dial-up internet connection via the Public Switched Telephone Network PSTN  11  (arrow  23 ).  
     [0025] Voice-based requests can also be made to voice interface  45  of the service system  40 :  
     [0026] using a standard telephone  17  connecting via the PSTN  11  to the service system  40  (arrow  25 );  
     [0027] using a mobile cell phone  16  connecting via PLMN  12  and PSTN  11  to the service system  40  (arrow  24 );  
     [0028] using PC  14  with internet telephony capability that connects via internet  10  to the voice interface  45  of the service system (arrow  21 ).  
     [0029] Regardless of whether the request is received by the data interface  44  or by the voice interface  45 , the request may be handled either by a human representative in a contact center  47  or automatically, in order to generate an appropriate search-engine request for processing by a document search engine  43  of the service system. This search-engine request is based on the identity of the requesting user and on the interest indicator included in the user request. Of course, as a preliminary to handling the user request, the identity of the user is checked in an appropriate manner, for example, by means of a password (the service system keeping a copy of each user&#39;s password in a subscriber database, not shown). For direct telephone calls, calling line ID can be used to check user identity.  
     [0030] With respect to the automatic handling of the user request, the voice interface  45  is provided with an appropriate voice-recognition/text-to-speech subsystem  46  for this purpose. The data interface  44  effects automatic processing, for example, on the basis of a web form sent by the user, the processing of such forms being well understood by persons skilled in the art.  
     [0031] The search engine  43  processes a search-engine request by searching those documents/document indexes contained in document database  41  for which the user has document copies, in order to ascertain references (document ID, page number in document) relevant to the interest indicator provided by the user. When the search is complete, the search engine returns the references found and the appropriate interface  44 ,  45  is then used to send the reference data back to the user  5 .  
     [0032] The interest indicator included in the request sent by user  5  need not be limited to a word, group of words, or even a Boolean expression of words. For example, the interest indicator could be a geographic location expressed in an appropriate set of coordinates. Of course, it is unlikely that such location coordinates will produce a direct match in any search and therefore the service system is arranged first to translate the coordinates into key terms for the location concerned—these key terms are for example, names of places close to the location or of people and events associated with the location. The translation from location to search term is done, for example by a database look-up in a location/key-term database (not shown). Effecting such location-based document reference look-ups forms part of the subject matter of our co-pending UK patent application No. 0012749.8 filed May 26, 2000.  
     [0033] It will be appreciated that many variants are possible to the above described embodiment of the invention. Thus, for example, the service system  40  can be run entirely separately from any bookstore with the user providing all the necessary information about the documents they hold when registering for the service.  
     [0034] The service system can also be arranged to inform a requesting user, about one or more documents which are of particular relevance to the indicated interest area and which the user does not currently possess; the user could even be given the opportunity to buy these documents from the bookstore  30 .