JP2013200800A - Device, system, method and program for related information presentation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a related information presentation device, system, and method capable of searching and presenting information related to a selected text.SOLUTION: Bibliographic index data 25 registers therein an important word included in bibliographic data stored in a bibliographic data base 21 and a frequency of appearance thereof. An important word extraction part 23 extracts the important word from text data selected by a user. An index data creation part 24 calculates the frequency of appearance of the extracted important word. A relevancy calculation part 27 uses the bibliographic index data 25 to calculate a relevancy between the important word of the selected text and the bibliographic data stored in the bibliographic data base 21, and searches for the bibliographic data with higher relevancy from the bibliographic data base 21. Based on a search result, a result presentation part 28 sends (presents) the bibliographic data highly relevant to the selected text to a terminal.

Description

  The present invention relates to a related information presentation device, a related information presentation system, a related information presentation method, and a program, and more particularly to a related information presentation device that presents related information of a selected text.

  Conventionally, in order to obtain knowledge that the user does not know, search for related books by entering a keyword, or search for a book containing the keyword by selecting the keyword in the displayed text. There is technology.

  For example, Patent Document 1 proposes a system in which a user simply selects a keyword from sentences displayed on a personal computer and obtains content corresponding to the keyword.

  Further, for example, Patent Document 2 proposes a system that performs a full text search from text selected by an electronic book viewer and performs dictionary lookup.

Japanese Patent Laid-Open No. 2003-122779 JP 2001-195212 A

  However, in the techniques of Patent Document 1 and Patent Document 2, a database is searched with text (character string) selected by a user, and related information is presented. Therefore, when a long text such as a sentence or a paragraph is selected instead of a word unit, there is a problem that the search result is 0 and appropriate related information cannot be presented.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a related information presentation apparatus and the like that can search and present appropriate information related to a selected text. That is.

In order to achieve the above-described object, the first invention is a related information presentation device connected to a terminal via a network, and includes bibliographic data including information on books, and important words included in the bibliographic data. Storage means for storing bibliographic index data composed of the appearance frequency; and important word extraction means for receiving the selected text data transmitted from the terminal and extracting the important words included in the selected text data and the appearance frequency thereof; The relevance calculation for calculating the relevance between the important word included in the selected text data extracted by the important word extraction means and the bibliographic data stored in the storage means using the bibliographic index data And the bibliographic data having a high degree of relevance as a result of calculation by the relevance degree calculating means. A related information presentation device characterized by and a result presentation means for transmitting to.
According to the first invention, suitable bibliographic data related to the selected text can be searched and presented.

The storage means further stores dictionary data composed of information about the dictionary and dictionary index data composed of important words contained in the dictionary data and their appearance frequencies, and the relevance calculation means stores the dictionary index data. And calculating a relevance between the important word included in the selected text data extracted by the important word extracting means and the dictionary data stored in the storage means, and the result presenting means As a result of calculation by the calculation means, the dictionary data having a high degree of relevance is retrieved from the storage means and transmitted to the terminal.
As a result, appropriate dictionary data related to the selected text can be retrieved and presented.

Further, the mode transmitted from the terminal is received, and based on the received mode, the relevance calculation unit selects the bibliographic data or the dictionary data stored in the storage unit, and selects the selected data. Calculate the relevance of.
Thereby, it becomes possible to search for information according to the mode (related book mode or reference mode) set in the terminal.

The apparatus further comprises index data creating means for creating the bibliographic index data and the dictionary index data.
Thereby, bibliographic index data and dictionary index data can be created and stored in advance.

A second invention is a related information presentation system in which a server and a terminal are connected via a network, wherein the server includes bibliographic data composed of information on books, important words included in the bibliographic data, and appearances thereof. Storage means for storing bibliographic index data consisting of frequency, selected word data transmitted from the terminal, and important word extraction means for extracting important words contained in the selected text data and their appearance frequencies; Relevance calculation means for calculating the relevance between the important word included in the selected text data extracted by the important word extraction means and the bibliographic data stored in the storage means using bibliographic index data; The bibliographic data having a high relevance as a result calculated by the relevance calculation means is retrieved from the storage means, and the terminal A result presentation means for transmitting, wherein the terminal is predetermined by a first display control means for controlling display of an electronic book browsing screen for browsing an electronic book, and a text displayed on the electronic book browsing screen. And transmitting the text data of the detected location to the server, and receiving the bibliographic data retrieved based on the text data from the server, and the bibliographic data And a second display control means for controlling display of information based on the related information presentation system.
According to the second invention, appropriate bibliographic data related to the selected text can be retrieved and presented.

A third invention is a related information presentation method of a related information presentation system in which a server and a terminal are connected via a network, and the server is included in bibliographic data including information on books, and the bibliographic data. A storage control step for controlling storage of bibliographic index data composed of important words and their appearance frequencies, and selected text data transmitted from the terminal are received, and important words and their appearance frequencies included in the selected text data are extracted. The important word included in the selected text data extracted by the processing of the important word extraction step using the bibliographic index data, and the bibliographic data stored in the storage control step. The relevance calculation step for calculating the relevance, the result calculated in the processing of the relevance calculation step, A result presentation step of searching the bibliographic data having a high degree and transmitting it to the terminal, wherein the terminal controls a display of an electronic book browsing screen for browsing an electronic book; , Detecting that a predetermined location is selected in the text displayed on the electronic book browsing screen, and transmitting the text data of the detected location to the server, from the server, based on the text data A second display control step of receiving the searched bibliographic data and controlling display of information based on the bibliographic data.
According to the third invention, appropriate bibliographic data related to the selected text can be retrieved and presented.

4th invention receives the bibliographic data which consists of the information regarding a book, the memory | storage means which memorize | stores the bibliographic index data which consists of the important word contained in the said bibliographic data, and its appearance frequency, and the selection text data transmitted from a terminal And an important word extracting means for extracting an important word contained in the selected text data and its appearance frequency, and an important word contained in the selected text data extracted by the important word extracting means using the bibliographic index data. Relevance calculation means for calculating relevance with the bibliographic data stored in the storage means, and search for the bibliographic data having a high relevance as a result of calculation by the relevance calculation means from the storage means. And a result presentation unit that transmits the result to the terminal.
By installing the program according to the fourth invention in a general-purpose computer, the related information presentation device according to the first invention can be obtained.

  According to the present invention, it is possible to provide a related information presentation device, a related information presentation system, a related information presentation method, and a program that can search and present appropriate information related to a selected text.

It is a figure which shows the structural example of the related information presentation system which concerns on embodiment of this invention. It is a block diagram which shows the structural example of the hardware of a server. It is a block diagram which shows the function structural example of a server. It is a figure which shows an example of the information memorize | stored in a bibliographic index data database. It is a figure which shows an example of the information memorize | stored in a dictionary index data database. It is a flowchart which shows index data creation processing. It is a flowchart which shows a related information presentation process. It is a figure which shows the example of a display of an electronic book browsing screen. It is a flow church which shows the detail of the important word extraction process of step S16 of FIG. It is a figure which shows an example of the phrase extracted by the important word extraction process, and appearance frequency. It is a figure which shows the example of a display of the relevant information in a related book mode. It is a figure which shows the example of a display of the relevant information in a reference mode. It is a figure which shows the example of a display of the context menu for the mode setting in an electronic book browsing screen.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a configuration example of a related information presentation system 1 according to an embodiment of the present invention.

  The related information presentation system 1 shown in FIG. 1 is configured by connecting a server 2 and a terminal 3 to each other via a network 4. The number of servers 2 and terminals 3 is arbitrary, and it is of course possible to provide a plurality of each.

  The server 2 is a computer system including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disc Drive), etc., and receives the text data selected by the terminal 3. Then, the related information of the text data is searched, and the search result or the like is transmitted to the terminal 3.

  The terminal 3 is a computer on which a CPU, ROM, RAM, HDD, input unit, display screen, and the like are mounted. The terminal 3 is preinstalled with a viewer application for browsing electronic books, and displays electronic books downloaded by users. For example, when a certain sentence (text data) of an electronic book being browsed is selected by the user, the terminal 3 transmits a search request for information related to the text data to the server 2 via the network 4. Relevant information of the text data that is the search result is received from the server 2 and presented to the user.

  The network 4 is a network such as the Internet or a LAN (Local Area Network), and wired or wireless is not particularly limited.

  FIG. 2 is a block diagram illustrating a hardware configuration example of the server 2. Note that the hardware configuration in FIG. 2 is an example, and various configurations can be adopted depending on the application and purpose. Also, the terminal 3 basically has the same configuration as the server 2.

  A computer that realizes the server 2 (terminal 3) includes a control unit 11, a storage unit 12, a media input / output unit 13, a communication unit 14, an input unit 15, a display unit 16, a peripheral device I / F (interface) unit 17, and the like. Are connected via a bus 18.

  The control unit 11 includes a CPU, a ROM, a RAM, and the like. The CPU calls and executes a program stored in the storage unit 12, ROM, recording medium, or the like in the work memory area on the RAM, drives and controls each device connected via the bus 18, and the server 2 (terminal 3). ) To be described later. The ROM is a non-volatile memory, and permanently stores programs such as a computer boot program and BIOS (Basic Input / Output System), data, and the like. The RAM is a volatile memory, and temporarily stores programs, data, and the like loaded from the storage unit 12, ROM, recording medium, and the like, and includes a work area used by the control unit 11 for performing various processes.

  The storage unit 12 is an HDD, and stores a program executed by the control unit 11, data necessary for program execution, an OS (operating system), and the like. With respect to the program, a control program corresponding to an OS (operating system) and an application program for causing a computer to execute processing described later are stored. Each of these program codes is read by the control unit 11 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

  The media input / output unit 13 (drive device) inputs / outputs data, for example, media such as a CD drive (-ROM, -R, -RW, etc.), DVD drive (-ROM, -R, -RW, etc.) Has input / output devices. The communication unit 14 includes a communication control device, a communication port, and the like, and is a communication interface that mediates communication between a computer and a network. The communication unit 14 performs communication control with other computers via the network 4.

  The input unit 15 inputs data and includes, for example, a keyboard, a pointing device such as a mouse, and an input device such as a numeric keypad. An operation instruction, an operation instruction, data input, and the like can be performed on the computer via the input unit 15.

  The display unit 16 includes a display device such as a liquid crystal panel, and a logic circuit or the like (video adapter or the like) for realizing a video function of the computer in cooperation with the display device.

The peripheral device I / F unit 17 is a port for connecting a peripheral device to the computer, and the computer transmits and receives data to and from the peripheral device via the peripheral device I / F unit 17. The peripheral device I / F unit 17 is a USB (Universal Serial Bus) or IEEE (The Institute of
Electrical and Electronics Engineers (1394) and RS (Recommended)
Standard) -232C and the like, and usually has a plurality of peripheral devices I / F. The connection form with the peripheral device may be wired or wireless. The bus 18 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  FIG. 3 is a block diagram illustrating a functional configuration example of the server 2. At least a part of the functional units shown in FIG. 3 is realized by executing a related information presentation program by the control unit 11 of FIG.

  The bibliographic database 21 stores, for each book, bibliographic data including, for example, book title, author name, publisher, and content introduction sentence data (for example, about 200 characters). The dictionary database 22 stores, for each dictionary, dictionary data consisting of at least some dictionary heading names and explanation sentences. The dictionary database 22 includes a plurality of databases for each dictionary.

  The important word extraction unit 23 performs morphological analysis (dividing words) on bibliographic data for each book stored in the bibliographic database 21, and extracts a morpheme string that matches the heading list in the dictionary database 22 as an important word. The important word extraction unit 23 performs morphological analysis on the dictionary data stored in the dictionary database 22 and extracts a morpheme string that matches the heading list in the dictionary database 22 as an important word. Further, the keyword extraction unit 23 performs morphological analysis on the text data selected by the user, and extracts a morpheme string that matches the heading list in the dictionary database 22 as a keyword. The important word extraction unit 23 calculates the appearance frequency of the important word in the text data selected by the user, and supplies the calculation result to the relevance calculation unit 27.

  The index data creating unit 24 calculates the appearance frequency of the important word in the bibliographic data extracted by the important word extracting unit 23 and registers it as the bibliographic index data 25. The index data creation unit 24 calculates the appearance frequency of the important word in the dictionary data extracted by the important word extraction unit 23 and registers it as dictionary index data 26.

  The bibliographic index data 25 is data in which at least important words are associated with the appearance frequency and stored for each bibliography.

  FIG. 4 is a diagram illustrating an example of information stored as the bibliographic index data 25. FIG. 4 is extracted from bibliographic data including book title, author name, publisher, and content introduction text for one book.

  In the case of the example of FIG. 4, in the bibliographic index data 25, the appearance frequency of “12” is linked to the phrase “Oda Nobunaga”, and the appearance frequency of “10” is linked to the phrase “Honnoji no Hen”. , The appearance frequency of “8” is linked to the phrase of “Sengoku period”, the appearance frequency of “6” is linked to the phrase of “battle battle”, and the appearance frequency of “5” is linked to the phrase “Hideyoshi Toyotomi” The appearance frequency of “5” is linked to the phrase “history” and stored.

  The dictionary index data 26 is data in which at least an important word is associated with an appearance frequency and stored for a plurality of dictionaries.

  FIG. 5 is a diagram illustrating an example of information stored as the dictionary index data 26. FIG. 5 shows one headline (for example, Nobunaga Oda) extracted from dictionary data consisting of the headline name and commentary.

  In the case of the example of FIG. 5, the dictionary index data 26 is associated with the word “Oda Nobunaga” with the appearance frequency “14”, and the word “Owari” with the appearance frequency “12”. Oda's phrase “9” is linked to “Azuchi Momoyama” phrase “7”, and “Bushou” phrase “7” is linked. Appearance frequency of “6” is linked to the phrase “Nokihime” and stored.

  In the dictionary index data 26, the appearance frequencies of a plurality of dictionary data in the dictionary database 22 are collectively stored.

The degree-of-association calculating unit 27 relates the important word of the text data selected by the user supplied from the important word extracting unit 23 and the bibliographic data or dictionary data stored in the bibliographic database 21 or the dictionary database 22. Using the bibliographic index data 25 or the dictionary index data 26, the degree is determined by TF (term frequency) / IDF (inverse document).
frequency) method. A known technique can be used as the relevance calculation method such as the TF / IDF method.

  The result presentation unit 28 presents (sends) bibliographic data or dictionary data related to the text data selected by the user as related information based on the calculation result by the relevance degree calculation unit 27.

  FIG. 6 is a flowchart showing index data creation processing executed by the server 2.

  In step S1, the keyword extraction unit 23 of the server 2 reads the bibliographic data stored in the bibliographic database 21 and the dictionary data stored in the dictionary database 22, and in step S2, the read bibliographic data and dictionary data are read. Perform morphological analysis (divide words).

  In step S3, the important word extraction unit 23 of the server 2 refers to the dictionary database 22, and among the words morphologically analyzed in the process of step S2, the dictionary of the dictionary that matches the genre of the electronic book being browsed by the user. The morpheme string that matches the heading list is extracted as an important word. For example, “National History University Dictionary” is set for historical electronic books. In addition, the dictionary suitable for the genre of the electronic book can be set in advance by the administrator of the server 2, for example.

  In step S4, the index data creation unit 24 of the server 2 calculates the appearance frequency of the important words extracted in the process of step S3. In step S5, the index data creation unit 24 of the server 2 associates the appearance frequency calculated in the process of step S4 with the important word and registers it as the bibliographic index data 25 and the dictionary index data 26.

  In step S6, the important word extraction unit 23 of the server 2 determines whether or not the processing of all data has been completed, that is, all the bibliographic data stored in the bibliographic database 21 and all the data stored in the dictionary database 22. It is determined whether or not dictionary data has been read and processed, and if it is determined that processing of all data has not been completed yet, the process returns to step S1 and the above-described processing is repeatedly executed.

  In step S <b> 6, when the keyword extraction unit 23 of the server 2 determines that all data has been processed, the index data creation processing ends.

  As described above, the server 2 creates the bibliographic index data 25 based on the bibliographic data stored in the bibliographic database 21 in advance, and the dictionary index data 26 based on the dictionary data stored in the dictionary database 22. create.

  FIG. 7 is a flowchart showing related information presentation processing executed by the related information presentation system 1. This process is started when a predetermined electronic book is being browsed by the user on the terminal 3.

  In step S11, the control unit of the terminal 3 waits for an input event from the user. For example, the input event is selection of a sentence (text) of an electronic book being browsed, an instruction to end browsing, or the like.

  In step S12, when the control unit of the terminal 3 detects an input event from the user, when it is determined that the input event is a text selection, the process proceeds to step S13, and when it is determined that browsing is ended. Then, the process ends.

  In step S13, the control unit of the terminal 3 detects the current mode. The mode includes a related book mode and a reference mode. In the related book mode, bibliographic data related to the selected text is presented, and in the reference mode, dictionary data related to the selected text is presented. .

  For example, when browsing a desired electronic book, the user displays an electronic book browsing screen 41 as shown in FIG. 8 on the display unit of the terminal 3. The electronic book browsing screen 41 shown in FIG. 8 displays a text display area 42 and a related information presentation area 43, and the text display area 42 displays the text of the electronic book selected by the user. . The related information presentation area 43 is set to a mode set in advance on the viewer application setting screen or the like, and is set to the related book mode in the example of FIG.

  A user who is browsing an electronic book is interested in a certain sentence while reading the text, and selects the sentence when he / she wants to receive information related to the sentence. For example, the display unit of the terminal 3 has a touch panel function, and the user can trace to the position A2 while pressing the position A1 on the text display area 42 of the electronic book browsing screen 41 in FIG. By performing the operation, it is possible to select a predetermined text including the words “Nobunaga” and “Honnoji no Hen”. In order to make it possible to visually recognize that the text has been selected, in the example of FIG. 8, the selected text changes to a shaded display S, and the start point (position A1) and the end point (position A2) of the selected text Is displayed.

  Returning to the description of FIG. In step S <b> 14, the control unit of the terminal 3 transmits the selected text data and the detected mode to the server 2 via the network 4. In step S <b> 15, the control unit 11 of the server 2 receives text data and a mode from the terminal 3 via the network 4. In step S16, the control unit 11 of the server 2 performs an important word extraction process on the received text data.

  FIG. 9 is a flowchart showing details of the keyword extraction process in step S16 of FIG.

  In step S41, the keyword extraction unit 23 of the server 2 performs morphological analysis (divides the word) on the text data received from the terminal 3 in the process of step S15. In step S42, the important word extraction unit 23 of the server 2 refers to the dictionary database 22, and extracts a morpheme string that matches the dictionary heading list from the words analyzed in the process of step S42 as the important word. In step S43, the keyword extraction unit 23 of the server 2 calculates the appearance frequency of the keyword extracted in the process of step S42.

  By the above important word extraction process, for example, as shown in FIG. 10, the appearance frequency “1” of the phrase “Nobunaga” and the appearance frequency “1” of the phrase “Honnoji no Hen” are calculated.

  Returning to the description of FIG. In step S <b> 17, the control unit 11 of the server 2 determines the mode received from the terminal 3 in the process of step S <b> 15, and proceeds to step S <b> 18 when determining that it is the related book mode. In step S18, the relevance calculation unit 27 of the server 2 uses the bibliographic index data 25, the important words in the selected text data extracted in the process of step S16, and each bibliographic data stored in the bibliographic database 21. The degree of relevance (similarity) is calculated using the TF / IDF method or the like.

  In step S <b> 19, the relevance calculation unit 27 of the server 2 searches the bibliographic database 21 for bibliographic data (for example, top 10 items) having a high relevance based on the calculation result obtained in the process of step S <b> 18.

  On the other hand, if it is determined in step S17 that the mode is the reference mode, the process proceeds to step S20, and the relevance calculation unit 27 of the server 2 uses the dictionary index data 26 to select the selected text data extracted in the process of step S16. The degree of relevance (similarity) between the important words in and the dictionary data stored in the dictionary database 22 is calculated using the TF / IDF method or the like.

  In step S <b> 21, the relevance calculation unit 27 of the server 2 searches the dictionary database 22 for dictionary data (for example, top 10 items) having a high relevance based on the calculation result obtained in the process of step S <b> 20.

  In step S22, the result presentation unit 28 of the server 2 sets the search result obtained in the process in step S19 as bibliographic data highly relevant to the selected text or the search result obtained in the process in step S21. High dictionary data is transmitted (presented) to the terminal 3 via the network 4.

  In step S23, the control unit of the terminal 3 uses bibliographic data highly related to the selected text received from the server 2 as related books or dictionary data highly related to the selected text received from the server 2 as reference content. Display on the display.

  As described above, appropriate bibliographic data or dictionary data related to the selected text can be searched and presented.

  FIG. 11 is a diagram illustrating a display example of related information in the related book mode.

  In the related information presentation area 43 of the electronic book browsing screen 41 shown in FIG. 11, as information related to the text selected in the text display area 42, information on the bibliography of “Mystery of Honnoji” and “Nobunaga's Innovation” (display image) , Author name, publisher, content introduction, relevance calculated by the server 2, etc.). Also, by pressing the scroll down button 44, other related information (bibliographic data) that cannot be displayed can be displayed.

  FIG. 12 is a diagram illustrating a display example of related information in the reference mode.

  In the related information presentation area 43 of the electronic book browsing screen 41 shown in FIG. 12, as related information of the text selected in the text display area 42, a dictionary of “Honnoji no Hen”, “Oda Nobunaga”, and “Akechi Mitsuhide” Information (explanatory text, degree of relevance calculated by the server 2, etc.) is displayed. Also, by pressing the scroll down button 44, other related information (dictionary data) that cannot be displayed can be displayed.

  As described above, according to the related information presentation system 1 in the embodiment of the present invention, bibliographic index data in which an important word and an appearance frequency are associated with each bibliographic data, and an important word and an appearance frequency are associated with each dictionary data. By storing the obtained dictionary index data in advance as bibliographic index data 25 and dictionary index data 26, when an arbitrary portion (text) of the electronic book is selected, an important word of the selected text is extracted. The frequency of appearance of the extracted important words is calculated, the relevance between the important words of the selected text and the bibliographic data or dictionary data stored in the database is calculated, and the highly relevant one is used as the related information of the selected text. It is possible to search and present.

  In addition, morpheme strings that match the dictionary heading list are extracted as key words, so by setting the dictionary according to the genre of the book, it is possible to extract appropriate key words and more appropriate relations. Information can be presented.

  In the above, when the electronic book browsing screen 41 shown in FIG. 8 is displayed, the related information presentation area 43 is set in advance to the mode set on the setting screen of the viewer application. For example, when a text is selected in the text display area 42 of the electronic book browsing screen 41 (shaded display S), a context menu 51 as shown in FIG. 13 is displayed and is used to set the related book mode. Either the related book button 52 or the reference button 53 for setting the reference mode may be selected.

  Further, in the above description, the dictionary data is stored in the dictionary database 22. However, in addition to the dictionary data, for example, map data, moving image data, audio data, and the like are stored, and these data are presented together with the dictionary data. You may do it.

  The preferred embodiments of the related information presentation device and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

1 ......... Related information presentation system 2 ......... Server 3 ......... Terminal 4 ......... Network 21 ......... Bibliographic information database 22 ......... Dictionary database 23 ......... Key word extraction unit 24 ......... Index data Creation section 25 ......... Bibliographic index data database 26 ... ... Dictionary index data database 27 ... ... Relevance calculation section 28 ... ... Result presentation section

Claims (7)

A related information presentation device connected to a terminal via a network,
Storage means for storing bibliographic data consisting of information related to books, and bibliographic index data consisting of important words included in the bibliographic data and their appearance frequencies;
Key word extraction means for receiving the selected text data transmitted from the terminal and extracting the key word included in the selected text data and the appearance frequency thereof;
Using the bibliographic index data, relevance calculation means for calculating the relevance between the important words included in the selected text data extracted by the important word extraction means and the bibliographic data stored in the storage means When,
As a result calculated by the relevance degree calculating means, the bibliographic data having a high relevance degree is retrieved from the storage means, and a result presenting means for transmitting to the terminal,
A related information presentation device comprising: The storage means further stores dictionary data composed of information about the dictionary, and dictionary index data composed of important words included in the dictionary data and their appearance frequencies,
The degree-of-association calculating means uses the dictionary index data to determine the degree of association between an important word included in the selected text data extracted by the important word extraction means and the dictionary data stored in the storage means Calculate
2. The related information presentation according to claim 1, wherein the result presentation unit searches the dictionary unit for the dictionary data having a high degree of relevance as a result of the calculation by the relevance degree calculation unit, and transmits the dictionary data to the terminal. apparatus. The mode transmitted from the terminal is received, and based on the received mode, the relevance calculation means selects the bibliographic data or the dictionary data stored in the storage means, and selects the selected data and The related information presenting apparatus according to claim 2, wherein the related degree is calculated. The related information presentation device according to claim 2, further comprising index data creating means for creating the bibliographic index data and the dictionary index data. A related information presentation system in which a server and a terminal are connected via a network,
The server
Storage means for storing bibliographic data consisting of information related to books, and bibliographic index data consisting of important words included in the bibliographic data and their appearance frequencies;
Key word extraction means for receiving the selected text data transmitted from the terminal and extracting the key word included in the selected text data and the appearance frequency thereof;
Using the bibliographic index data, relevance calculation means for calculating the relevance between the important words included in the selected text data extracted by the important word extraction means and the bibliographic data stored in the storage means When,
As a result calculated by the relevance degree calculating means, the bibliographic data having a high relevance degree is retrieved from the storage means, and a result presenting means for transmitting to the terminal,
With
The terminal
First display control means for controlling display of an electronic book browsing screen for browsing an electronic book;
Transmitting means for detecting that a predetermined location is selected in the text displayed on the electronic book browsing screen, and transmitting text data of the detected location to the server;
Second display control means for receiving the bibliographic data searched based on the text data from the server and controlling display of information based on the bibliographic data;
A related information presentation system comprising: A related information presentation method of a related information presentation system in which a server and a terminal are connected via a network,
The server
A storage control step for controlling storage of bibliographic data consisting of information on books, and bibliographic index data consisting of important words contained in the bibliographic data and their appearance frequencies;
An important word extraction step of receiving selected text data transmitted from the terminal and extracting an important word included in the selected text data and an appearance frequency thereof;
Using the bibliographic index data, the relevance level for calculating the relevance level between the important words included in the selected text data extracted in the important word extraction step and the bibliographic data stored in the storage control step A calculation step;
As a result calculated in the processing of the relevance level calculation step, the bibliographic data having a high relevance level is searched, and a result presentation step for transmitting to the terminal;
Including
The terminal
A first display control step for controlling display of an electronic book browsing screen for browsing an electronic book;
A transmission step of detecting that a predetermined location is selected in the text displayed on the electronic book browsing screen, and transmitting text data of the detected location to the server;
A second display control step for receiving the bibliographic data retrieved based on the text data from the server and controlling display of information based on the bibliographic data;
The related information presentation method characterized by including. Storage means for storing bibliographic data consisting of information related to books, and bibliographic index data consisting of important words included in the bibliographic data and their appearance frequencies;
An important word extraction unit that receives selected text data transmitted from the terminal and extracts an important word included in the selected text data and an appearance frequency thereof;
Using the bibliographic index data, relevance calculation means for calculating the relevance between the important words included in the selected text data extracted by the important word extraction means and the bibliographic data stored in the storage means When,
As a result calculated by the relevance degree calculating means, the bibliographic data having a high relevance degree is retrieved from the storage means, and a result presenting means for transmitting to the terminal,
The program which functions as a related information presentation apparatus which has.

Images