JP2005173999A - Device, system and method for searching electronic file, program, and recording media - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic file search device capable of assisting a user in creating documents by automatically extracting search words to conduct searches when conditions preset by the user are met. <P>SOLUTION: Character strings or editing operations for creating or editing documents are inputted. Whether or not the characters inputted meet predetermined conditions is determined as necessary, and if they are determined to meet the conditions, search words are extracted from the character strings inputted, and for the first search the extracted search words are used to search a document database. For second and subsequent searches, search refinements are carried out on the previous search results, and searches and the display of search results are repeated until no new characters are inputted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic file search device, an electronic file search system, an electronic file search method, a program, and a recording medium, and relates to a technique for searching and presenting a related document when creating a new document or editing an existing document. About.

Conventionally, when creating a document, if it is desired to refer to a related document created in the past, a search expression is created by selecting a keyword for searching the related document. This search formula is applied to a document database in which documents are accumulated to extract related document candidates, and a desired document is specified by reading an outline and contents from the extracted candidates. Further, when the search result is not satisfactory, the search formula is corrected and the search is performed again.
A new document or an existing document is edited by selecting a desired document from the related documents searched in this way and viewing the contents thereof.

  In addition, there are the following search systems that support input of a search expression in a natural language, dialogue on search results, narrowed search by dialogue, and the like.

  Japanese Patent Laid-Open No. 2004-151867 determines an input sentence in a user's natural language based on a dialog situation (an utterance situation such as whether the input sentence is an answer to a question issued by the system) and understands the input according to the situation judgment. It is possible to analyze by switching the input mode, and also to determine the meaning of the input sentence, execute appropriate work, and return an appropriate response sentence to the user according to the execution. , Enabling closer dialogue.

  In Patent Document 2, a search condition is input using a natural language, the input search condition is decomposed and analyzed, and extracted as a keyword used for the search. This is a natural language search support method that uses the extracted keywords to search the entire text and outputs the search results, and refers to a category structure database that registers correlations for keyword categories. In addition, the category of the search target is specified based on the keyword, and a question sentence that guides the user to change the search condition until the category of the search target can be specified is generated by an interactive form with the user. Thus, it is possible to provide a natural language search support apparatus that can embody the user's own search needs and can suppress the waste of computer resources.

  Patent Document 3 manages the history of search work performed by a user as a network of input / output history and search target set creation history in natural language, and if there is a reference to previous search results, By searching the input / output history by using the previous search target set, it is possible to avoid the repetition of the same search process and to easily retrieve the search history, thereby realizing efficient search work. .

  Patent Document 4 enables a searcher to easily specify a logical search expression intended by the plurality of generated logical search expressions by making it possible to create as many logical search expressions as possible from the input natural language. Even if you enter a natural language that you normally use, even if you search for complex conditions that require complex logical search expressions, you can accurately search for information intended by the searcher and perform high operations. And high search accuracy.

Patent Document 5 analyzes an input sentence by a morphological analysis unit and decomposes it into elements, and converts the input sentence to an internal representation format by a semantic analysis unit to clarify the concept and conceptual relationship of the input sentence, and a sentence relation extraction unit Then, the relation between sentences in the input sentence is extracted, and the database retrieval unit accesses the database based on the internal representation format to perform information retrieval and information registration. The response information inspection part extracts the duplicate part of the response information as a result of the information search, the reply information matching part adjusts the duplicate part of the reply information to match the presentation order, and the natural language sentence generation part adjusts and matches The answer information of is converted into a natural language format.
As a result, it is possible to organize and classify information for a plurality of user's intentions and complicated conditions, and to present information that meets the search request to the user in an easy-to-understand manner.
JP 2001-022763 A Japanese Patent Laid-Open No. 2001-034614 Japanese Patent Laid-Open No. 7-078171 JP 11-175541 A Japanese Patent Laid-Open No. 11-272710

As described above, when searching for a related document, conventionally, a search is started only when a user inputs a search word such as a keyword and presses a search execution button each time.
However, when creating a document, the related document may change each time an input is made. In such a case, it is necessary to create a search formula every time this change occurs and to perform a document search again, which complicates the document creation work.

  The present invention has been made in consideration of the above-described circumstances, and when a user sets in advance and becomes a condition, a search word is automatically extracted and searched, and a related document searched for is retrieved. It is an object of the present invention to provide an electronic file search device, an electronic file search system, an electronic file search method, a program, and a recording medium that can support user document creation by displaying.

  In order to solve the above-described problems, the invention of claim 1 is directed to a character input unit for inputting a character string or an editing operation for creating or editing a document, and whether or not the input character satisfies a predetermined condition. A determination unit that sequentially determines whether or not a condition is satisfied by the determination unit, a search word extraction unit that extracts a search word from an input character string, and the search word extraction unit A search unit that searches a document database using a search term and a result display unit that displays a search result searched by the search unit, and when a character that matches the condition is input, A feature is that a search word is extracted from the input character string, and the search using the search word and displaying the search result are repeated until no new character is input.

  According to a second aspect of the present invention, in the electronic file search apparatus according to the first aspect, the electronic document retrieval apparatus includes a document input unit that reads the contents of the specified existing document. When the existing document is specified, the document input unit The document database is searched using a search word extracted from the character string of the input document content, and after the document content is read, the character input unit inputs characters.

  According to a third aspect of the present invention, in the electronic file search apparatus according to the first aspect, the electronic document retrieval apparatus includes a document input unit that reads the contents of the specified existing document. When the existing document is specified, the document input unit Characters are input by the character input unit after reading the document contents.

  According to a fourth aspect of the present invention, in the electronic file search apparatus according to the first, second, or third aspect, in the case of performing the second or subsequent search, the search unit performs a narrow search for the previous search result. It is characterized by performing.

  According to a fifth aspect of the present invention, in the electronic file search device according to any one of the first to fourth aspects, the result display unit displays a search result document in a reduced image format.

  The invention according to claim 6 is an electronic file search system in which an arbitrary number of terminals and an electronic file search server are connected by a communication network. The terminal inputs a character string or an edit operation for creating or editing a document. A document editing unit that transmits to the electronic file search server; and a result display unit that receives and displays the search result from the electronic file search server, wherein the electronic file search server includes characters received from the terminal, A character input unit that inputs an editing operation, a determination unit that sequentially determines whether or not the input character satisfies a predetermined condition, and an input if the determination unit determines that the condition is satisfied Using a search term extraction unit that extracts a search term from a character string, and a search term extracted by the search term extraction unit, a document database as a search target in the case of an initial search And search, in the case of the second or subsequent search is performed refine search directed to the previous search results, and having a search unit for returning the search results to the terminal.

  The invention of claim 7 inputs a character string or editing operation for creating or editing a document, sequentially determines whether or not the input character satisfies a predesignated condition, and satisfies the condition If it is judged, after extracting the search word from the input character string, in the case of the first search, the document database is searched using the extracted search word. Is characterized in that a refined search is performed on the previous search result, and the search and the display of the search result are repeated until no new characters are input.

The invention according to claim 8 is a program for causing a computer to execute the function of the electronic file search apparatus according to any one of claims 1 to 5 or the function of the electronic file search system according to claim 6. .
A ninth aspect of the present invention is a computer-readable recording medium on which the program according to the eighth aspect is recorded.

  According to the present invention, when a condition set by the user in advance is reached, a search word is automatically extracted from the text being input, and the search is executed. Since related documents are automatically displayed, it is possible to save time and effort to perform search by considering a search expression, which leads to improvement in document creation and document editing.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a functional configuration of an electronic file search apparatus according to an embodiment of the present invention. In the figure, the electronic file search apparatus includes a character input unit 110, a determination unit 120, a determination condition 125, a search word extraction unit 130, a search word table 135, a search unit 140, a document database (DB) 142, a search set 144, and a result. The display unit 150 includes a condition setting unit 160, a document input unit 170, a content display designation unit 210, a content extraction unit 180, and a content display unit 220.

This electronic file search device automatically extracts and displays related documents created in the past when creating documents using word processing software, etc., and displays the contents of the extracted documents as necessary. It helps to create user's document.
Hereinafter, each component will be described.

  The character input unit 110 corresponds to an input unit of word processing software, and a user inputs a sentence using an input device such as a keyboard or a mouse, and the input sentence is input on a display device such as a liquid crystal display. In addition to being displayed in the window (see FIG. 5), the text editing area holding the input text is edited and further input according to the editing operation of the document (for example, insertion, replacement, deletion, movement, copying, etc.) A character or character string is passed to the determination unit 120 to determine whether or not to perform an automatic search. The editing operation (for example, deletion) will be described later in the search term table.

  FIG. 2 shows various pointers for managing the input position and edit position of characters for proofreading a sentence in the sentence editing area. The document start position is a pointer indicating the first character of the input editing target document, and the document end position is a pointer indicating the last character of the input editing target document. The document includes one or more search execution units determined by the determination unit 120 as search execution. This one search execution unit is indicated by the start position and end position pointers in the text editing area.

The determination unit 120 determines which of the determination conditions 125 the character or character string passed from the character input unit 110 corresponds to, and starts the operation of the search word extraction unit 130 if it corresponds.
The determination condition 125 is, for example, a condition such as when a punctuation mark, a line feed, or a page break character is input, when a character changes from kanji to hiragana, or when a predetermined time has passed.
The condition setting unit 160 causes the user to select one or more of the above-described conditions in advance and holds the determination condition 125.

  The search term extraction unit 130 is activated by the determination unit 120 and performs an existing technique, for example, a morphological analysis as disclosed in Japanese Patent Application Laid-Open No. 05-298352 on the character string between the start position and the end position of the search execution unit. Using the technique, the words are decomposed into words, and the words are recorded as search words in the search word table 135 so that the number of appearances is accumulated for each search execution unit, and the search unit 140 is activated. Further, for example, the character string is modified such as emphasis, shading or underline, or the search word in which the character string is used for the title is set to have a higher weight than other words.

The search term table 135 has a data structure as shown in FIG. 3, for example. In FIG. 3, for each search execution unit, search execution unit information and one or more search term information included therein are recorded.
In the search execution unit information, a search set ID (described later) and a start position and an end position of the search execution unit in the text editing area are recorded.
The search word information includes one or more search words (words extracted by the search word extraction unit 130) included in the character string of the search execution unit, the number of search words that appear in the character string, and the weight of the search word And at least.

  For example, if the string “Today is sunny. Tomorrow will be hotter than today.” Is entered, “Today” for one search execution unit (“Today is sunny.”) For the next search execution unit (“Tomorrow will be hotter than today.”), The number of occurrences is “1” and the number of occurrences of “fine weather” is “1”. “,“ Tomorrow ”and“ Hot ”appear as“ 1 ”in the search term table.

When an editing operation is input through the character input unit 110, the search word extraction unit 130 is activated to extract words included in the edited character string and update the search word table 135.
For example, when a word is deleted, the number of corresponding search words in the search word table 135 of the search execution unit having the deleted word is reduced by one, and when the word becomes zero, the search word is searched. Delete from the word table 135.

  For example, in the above example sentence, when “today is clear” and “today is”, the word “today” is deleted, so the number of times of “today” is “0” for the corresponding search execution unit. Since the number of times of “fine weather” is “1”, the search term “today” is deleted.

Similarly, in the case of inserting a word, it is added as a search word to the search execution unit in which the word is inserted. At this time, if it is a new search word, the number of times is set to 1, and if the same word, the number of times is increased by one and the search word table 135 is updated. The search word table 135 is similarly updated for other editing operations such as replacement, movement, and copying.
With respect to the search set of the search execution unit immediately before the updated search execution unit, the search unit 140 is activated by a search word after the updated search execution unit to execute a narrow search.

The search unit 140 refers to the search word table 135, generates a search expression from the search words included in the specified search execution unit, searches the document database (DB) 142 at the time of the first search, and searches the search results. A list of document IDs is output to the search set 144.
In the second and subsequent searches, the search unit 140 performs a narrow search for the search set 144 and outputs the search result to the search set 144.
In this search set 144, a file that can be identified for each search execution unit is written, and the ID (search set ID) of the file is recorded in the corresponding area of the search word table 135.

  For example, the document DB 142 has a data structure as shown in FIG. In the figure, for one document, a document ID (identifier), a document title, a document registration date, a document content (or a file name storing the document content, etc.), a document summary (document The user ID, the latest access date, and the number of accesses are recorded for each user who has accessed this document.

A search expression is generated by combining search terms belonging to a specified search execution unit with “AND”.
For example, when “Today is sunny” is input first, “Today” and “Sunny” are recorded as search terms in the search term table 135. As a result, the search expression “Today” & “Sunny” is generated.
Using the document DB 142 as a search target, a document corresponding to this search expression is searched, and the search result is output to the search set 144 of the search set ID assigned to the search execution unit.

Next, when “Tomorrow will be hotter than today” is entered, “Tomorrow”, “Today”, and “Hot” are recorded in the search word table 135 as search words.
In this case, the search set 144 searched previously is searched with the search formula ““ Tomorrow ”&“ Today ”&“ Hot ””, and the search set with the search set ID assigned to this search execution unit is searched. The search result is output to 144.
Accordingly, the search set 144 at this time is in a state where the search result when the search formula ““ Today ”&“ Sunny ”” & “Tomorrow” & “Today” & “Hot” ”is applied to the document DB 142 is recorded. It has become.

In addition, when a search term is deleted in a certain search execution unit, a search term of the search execution unit immediately preceding this search execution unit is generated with the remaining search terms after the current search term is deleted. Apply the specified search formula and search again. Thereafter, the search is repeated until the last (latest) search execution unit is reached.
For example, if there are four search execution units and the search term of the third search execution unit is deleted, the search expression of the third search execution unit is generated again, and the second search execution is performed with this search expression. Apply search to unit search set to execute search. Thereafter, the search is performed again by applying the search set of the third search execution unit that has been redone to the search expression of the fourth search execution unit.

The above example sentence explains how to search when a search word is deleted.
As described above, when “Tomorrow will be hotter than today,” “Tomorrow” will be deleted, the search formula will be ““ Today ”&“ Hot ””.
Therefore, the search expression ““ Today ”&“ Hot ”” is applied to the search set 144 as a result of searching the document DB 142 with the search expression ““ Today ”&“ Sunny ””, and the sentence “Today is hotter than today”. Search again.

The search unit 140 once updates the search set 144 by sorting the search results stored in the search set 144 in descending order of the score calculated for each document. The score of one document is, for example, a value obtained by multiplying the number of search words that appear in the document by the number of times (i) of the search word (i) in the search word table 135 and the weight (i) for each search word. The calculated total value.
Score = Σ “number of search words i” × number of appearances (i) × weight (i) (Formula 1)
Here, i is the number of search words included in the search execution unit.

Further, the weight of the word input immediately before the search may be further increased.
In addition, in order to display recently accessed items preferentially or display frequently accessed items preferentially, an access frequency coefficient determined by the registration date, the latest access date for each user and the access frequency should be considered. May be.
Score = Σ “number of search terms i” × number of appearances (i) × weight (i) + access frequency coefficient (Expression 2)
Here, i is the number of search words included in the search execution unit.

The result display unit 150 displays the search results stored in the search set 144 in the result display window of the display device.
FIG. 5 is a conceptual diagram of an input window and a result display window displayed on the display device. The input window is an area for inputting and editing text, and is used by the character input unit 110.
The result display window displays the documents as reduced images (thumbnail images) in descending order of the score, and when the number of thumbnail images to be displayed is too large, the whole can be displayed by moving the scroll bar.
This thumbnail image is obtained as a reduced image by bitmap conversion of the page when the page containing the search term in the document can be specified. When such a page cannot be specified, a thumbnail image is obtained using the first page.

  In addition, since there are few search terms at the beginning when the user starts to input in the input window, the search results become large and takes a long time to display, and it is meaningless to display the search results. Until the number of items is reached (this may be specified in advance by the user or may be changed according to the window size for displaying the results), as shown in FIG. May be displayed.

  When the number exceeds the predetermined number, a list of file names and titles of individual documents is displayed. When the number is smaller than the predetermined number, only thumbnail images (FIG. 6C), or thumbnail images and documents are displayed. The display method may be automatically switched according to the number of search results so as to display the outline (FIG. 6D).

  Further, in the case of similar images instead of the thumbnail images as described above, only representatives may be displayed so that a limited result display area can be used effectively. When only the representative is displayed, the icon format may be changed and displayed so that the user can identify that the representative is displayed.

  Similar determination is performed by converting the search result page as a bitmap image, superimposing the image data of one page, taking the sum of the absolute values of the differences of each pixel of the image, and this difference being smaller than a predetermined value. If it is “similar”.

Further, when the search result searched as described above is displayed, there are cases where it is desired to display the contents of the document. In such a case, as shown in FIG. 7, a result display window 1 for displaying the search result and a result display window 2 for displaying the contents of the document are provided.
When a desired image is selected from a list of thumbnail images and titles displayed in the result display window 1 and the display of the content of the selected document is requested, the content display designating unit 210 corresponds to the selected thumbnail image. The document ID of the document is sent to the content extraction unit 180.
The content extraction unit 180 takes out the content of the document with the received document ID from the document DB 142 and passes it to the content display unit 220.
The content display unit 220 displays the content of the received document on the result display window 2.

  The document input unit 170 reads the contents of a document designated by the user (for example, a created document stored in a document DB or other recording medium or a document in the middle of creation) and writes it in the text editing area. There are the following two methods for handling the text in the written text editing area, and the user designates in advance.

(1) After reading all, search word extraction and search are performed on the character string in the text editing area while determining by the determination unit 120. After all searches are completed, the search results of the last search set are displayed. A method of allowing a character string to be input from the character input unit 110 after being displayed.
(2) The apparatus is applied only to a newly input or edited character string, and when the editing area is saved at the end of the apparatus, the contents of the text editing area are added and written to the specified document. Method.

Next, the processing procedure of the electronic file search apparatus according to the embodiment of the present invention will be described using the flowchart of FIG.
A user inputs text into an input window (see FIG. 5) on a display device such as a liquid crystal display using an input device such as a keyboard or a mouse, and edits a document (for example, insert, replace, delete, move, Copy). At this time, the input character string is recorded in the sentence editing area, and editing is performed in this area (step S10).
In addition, when using a created document recorded in a document DB or other recording medium or a document in the middle of creation, the contents of the designated document are read and written in the text editing area.
At this time, there are a method in which search words are extracted and searched for all the read character strings, and a method in which the present apparatus is applied only to newly input or edited character strings.

Determine whether the entered characters are, for example, punctuation marks, line feeds, page breaks, whether they have changed from kanji to hiragana, or whether a predetermined time has passed since the previous search. (NO in step S11), the next character is input. If any of the conditions is met (YES in step S11), the input character string is subjected to morphological analysis to extract a search word, and the number of appearances and weight of the search word are set in the search word table. 135 is recorded (step S12).
Further, when an editing operation is input, a word included in the edited character string is extracted and the search word table 135 is updated.

Whether the search is the first search or the search after the second time, and in the case of the first search (NO in step S13), a search expression that is generated by connecting search terms belonging to the current search execution unit with “AND”. The document DB 142 is searched for, and a list of document IDs as search results is output to the search set 144 (step S14). At this time, an ID (search set ID) that can be identified for each search execution unit is assigned to the search set 144 and recorded in the corresponding area of the search word table 135.
Alternatively, in the case of the second and subsequent searches (YES in step S13), a narrow search is performed on the search set 144, and the search result is output to the search set 144 (step S15).

The search results are rearranged in descending order of the score calculated for each document (step S16).
The score of this document is calculated by weighting, for example, the number of search terms that appear in the document, the number and weight of appearances stored in the search term table 135, the registration date, the latest access date for each user, the access frequency, etc. Is done.

The search result is displayed on the result display window of the display device (step S17).
In the result display window, if there are a large number of search results, only the number of search results is displayed. If the number of search results is less than the predetermined number, a list of file names and titles of documents, thumbnail images of documents, thumbnails in descending order of scores In the case of thumbnail images that are similar to the outline of the image and the document, only the representative is automatically displayed according to the number of search results.
Further, a desired document is designated from the search results searched as described above, and the contents of the document are displayed.

  If the user has finished inputting or editing the document (YES in step S18), the process of this apparatus is terminated. If not, the process returns to step S10 to input or edit a character string.

  The electronic file search apparatus according to the above-described embodiment has been described as being realized by a single apparatus. However, an electronic file search is performed by performing input / editing of a character string at a terminal and searching for a related document with respect to the input character string. It is also possible to configure as an electronic file search system by using a server and displaying the search result on a terminal. In this case, an arbitrary number of terminals may be connected to the electronic file search server via a communication network.

FIG. 9 is a block diagram showing a functional configuration of the electronic file search system according to the embodiment of the present invention. Components having the same functions as those in FIG.
In the figure, the electronic file search server 10 includes a character input unit 110, a determination unit 120, a determination condition 125, a search word extraction unit 130, a search word table 135, a search unit 140, a document database (DB) 142, a search set 144, A condition setting unit 160, a document input unit 170, and a content extraction unit 180 are included.
The terminal 20 includes a document designation unit 230, a condition input unit 240, a document editing unit 250, a result display unit 150, a content display designation unit 210, and a content display unit 220.

  The document specifying unit 230 of the terminal 20 displays the document DB 142 or a list of existing documents, specifies the document ID of the document to be edited, and uses the specified document ID as the document input unit 170 of the electronic file search server 10. The document input unit 170 reads the content of the document with the received document ID into the document editing area.

  In addition, input and editing operations of the character string of the document are input by the document editing unit 250 of the terminal 20, and the input character string and editing operation are transmitted to the character input unit 110 of the electronic file search server 10. Is stored in the document editing area in accordance with the received character string and editing operation.

  A condition for executing the search is input by the condition input unit 240 of the terminal 20, the input condition is transmitted to the condition setting unit 160 of the electronic file search server 10, and the condition setting unit 160 transfers the received condition to the determination condition 125. Remember.

  The search result of the search unit 140 of the electronic file search server 10 is transmitted to the result display unit 150 of the terminal 20, and the result display unit 150 displays the received search result on the result display window.

  The communication network 30 is a transmission path for connecting the electronic file search server 10 and the terminal 20 and is generally realized by a cable, and TCP / IP is used as a communication protocol. However, the transmission path is not limited to a cable, and may be either wired or wireless as long as the communication protocol between them is the same. For example, a LAN (Local Area Network), WAN ( Wide Area Network) or the Internet can be used.

  By configuring the embodiment as described above, when a user sets in advance and a condition is met, a search term is automatically extracted from the sentence being input, and the search is executed. Automatically displays the document related to the text being entered, so that it is possible to save the trouble of performing the search by considering the search formula. This leads to an improvement in document creation and document editing.

Furthermore, each function of the terminal, each function of the electronic file search server, and each function of the electronic file search device of the above-described embodiment is programmed and written in a recording medium such as a CD-ROM in advance. The object of the present invention is achieved by mounting the recording medium on the recording medium reading device of the server and the electronic file search apparatus and executing these programs by the CPU.
In this case, the program read from the recording medium itself realizes the above-described embodiment, and the program and the recording medium on which the program is recorded also constitute the present invention.

As a recording medium, a semiconductor medium (for example, ROM, nonvolatile memory card, etc.), an optical medium (for example, DVD, MO, MD, CD-R, etc.), a magnetic medium (for example, magnetic tape, flexible disk, etc.) Either may be sufficient.
Alternatively, the program stored in the storage device may be directly supplied from the server computer via a communication network such as the Internet. In this case, the storage device of this server computer is also included in the recording medium of the present invention.

  Further, not only the functions of the above-described embodiment are realized by executing the loaded program, but also the above-described implementation by cooperating with the operating system or other application programs based on the instructions of the program. The case where the function of the form is realized is also included.

  As described above, by programming and distributing the functions of the above-described embodiment, cost, portability, and versatility can be improved.

  Furthermore, each function of the electronic file search server described above is programmed and stored in a storage device such as a magnetic disk of a server computer, and an execution instruction is received from a user computer connected via a communication network such as the Internet. When providing use by an ASP (Application Service Provider) that executes the program and returns the result to the user's computer, the storage device of the server computer and the program are also included in the present invention.

It is a block diagram which shows the function structure of the electronic file search apparatus which concerns on embodiment of this invention. It is explanatory drawing of the relationship between a text edit area and a pointer. It is an example of the data structure of a search term table. It is an example of the data structure of a document database. It is a conceptual diagram of the input window and result display window which were displayed on the display apparatus. It is a display example of a search result. It is another example of a display of a search result. It is a flowchart which shows the process sequence of the electronic file search apparatus which concerns on embodiment of this invention. It is a block diagram which shows the function structure of the electronic file search system which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Electronic file search server, 20 ... Terminal, 30 ... Communication network, 110 ... Character input part, 120 ... Determination part, 125 ... Determination condition, 130 ... Search word extraction part, 135 ... Search word table, 140 ... Search part, 142 ... Document DB, 144 ... Search set, 150 ... Result display section, 160 ... Condition setting section, 170 ... Document input section, 180 ... Content extraction section, 210 ... Content display designation section, 220 ... Content display section, 230 ... Document Designation unit, 240 ... condition input unit, 250 ... document editing unit.

Claims (9)

  A character input unit for inputting a character string or an editing operation for creating or editing a document, a determination unit for sequentially determining whether or not an input character satisfies a predetermined condition, and a condition in the determination unit A search term extraction unit that extracts a search term from the input character string, a search unit that searches a document database using the search term extracted by the search term extraction unit, and the search And a result display section that displays the search results searched for, when a character that matches the condition is entered, search terms are extracted from the character string that has been entered since the previous search. An electronic file search apparatus characterized by repeating search using words and displaying search results until no more characters are input.   The electronic file search apparatus according to claim 1, further comprising a document input unit that reads the content of a specified existing document, and when the existing document is specified, characters of the document content input by the document input unit An electronic file search apparatus characterized in that after a document database is searched using a search word extracted from a column and a document content is read, characters are input by the character input unit.   The electronic file search apparatus according to claim 1, further comprising: a document input unit that reads the content of the specified existing document, and when the existing document is specified, after the document content is read by the document input unit The electronic file search device is characterized in that a character is input by the character input unit.   4. The electronic file search apparatus according to claim 1, wherein the search unit performs a narrowing search on a previous search result in the case of performing a search after the second time. File search device.   5. The electronic file search apparatus according to claim 1, wherein the result display unit displays a search result document in a reduced image format. 6. In an electronic file search system in which an arbitrary number of terminals and an electronic file search server are connected via a communication network,
The terminal inputs a character string or editing operation for creating or editing a document, and transmits a document editing unit to the electronic file search server, and a result of receiving and displaying a search result from the electronic file search server. A display unit,
The electronic file search server includes a character input unit that inputs characters and editing operations received from the terminal, a determination unit that sequentially determines whether or not the input characters satisfy a predetermined condition, and the determination In the case of the first search using a search word extraction unit that extracts a search word from the input character string and the search word extracted by the search word extraction unit A search unit that searches the document database as a search target, performs a narrow search for the previous search result in the case of a second or subsequent search, and returns the search result to the terminal. Electronic file search system.   Input a character string or editing operation for creating or editing a document, and sequentially determine whether or not the input character satisfies a pre-specified condition, and input if it is determined that the condition is satisfied After extracting the search term from the extracted character string, in the case of the first search, the document database is searched using the extracted search term. In the case of the second and subsequent searches, the previous search result is obtained. An electronic file search method characterized by performing a narrow search for a target and repeating the search and display of search results until no more characters are input.   The program for making a computer perform the function of the electronic file search apparatus in any one of Claims 1 thru | or 5, or the function of the electronic file search system of Claim 6.   A computer-readable recording medium on which the program according to claim 8 is recorded.

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