JPH06266765A - Sentence retrieving device - Google Patents

Abstract

PURPOSE:To extract sentences where retrieval nouns (keyword) and the information related to these retrieval nouns are described without omission when the text file of document data is retrieved by the retrieval nouns. CONSTITUTION:An index file 4 storing the relation of each noun included in the document data of a text file 2 and the storage location of the noun and a directive dictionary 6 storing the relation of each directive included in the document data of the text file, the storage location of the demonstrative word and the noun indicated by the demonstrative word are prepared, and a synonym dictionary 7 is provided. The synonym of an inputted retrieval noun is read from the synonym dictionary, the storage location corresponding to the read synonym and retrieval noun is read from the index file, and the storage location of the directive corresponding to the retrieval noun is read from the directive dictionary. Each sentence of the part corresponding to each read storage location is read from the text file and it is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a text search device for searching a text file storing document data for a text containing a necessary search noun (keyword) in a short time. The present invention relates to a sentence search device capable of searching a sentence including a directive word indicating a noun.

[0002]

2. Description of the Related Art When searching a text file storing document data for a sentence containing a arbitrarily designated noun, the relevant noun is used as a keyword from the beginning position of the sentence data stored in the text file to the last position. There is a method of searching sequentially up to the position. However, this search method requires a great deal of time in order to search in order.

In order to eliminate such an inconvenience, the position in the text file where the corresponding noun is stored is stored with respect to the main noun included in the sentence data stored in the text file. Index files are used. By using such an index file, search nouns (keywords)
The storage location in the text file of
It is possible to read and display a required sentence in a short time.

Further, in recent years, by using a synonym dictionary that stores the relationship between each noun and another noun having substantially the same meaning, not only the designated keyword but also other nouns having the same meaning are included. A text search device capable of searching texts has been considered.

[0005]

However, the above-mentioned text retrieval apparatus also has the following problems to be improved.

That is, when it is necessary to search for information about a specific noun included in a series of documents without omission, not only the corresponding noun included in the document,
It is necessary to extract synonyms of the corresponding noun. Furthermore, "this,""that,""that,""theformer,""thelatter," which refers to the relevant noun.
When a human actually reads a grammatical word such as "," it is read by being replaced with the corresponding noun. Therefore, this directive should also be added to the search target.

However, in the above-mentioned text search device, it was not possible to analyze and search even such a directive. As a result, in order to search information strictly,
It is necessary to print out the document data of the text file with a printer once, and the analyst must carefully read the printed document. Further, it is necessary to read the document data of the text file in order on the display screen of the CRT display device or the like and visually confirm it by the analyst. Such a manual search method not only lowers the search work efficiency but also increases the probability of human error such as omission of search.

The present invention has been made in view of such circumstances, and in addition to the index file and the synonym dictionary, by providing a directional word dictionary for storing the relationship between the nouns pointed to by each directional word, It is an object of the present invention to provide a sentence search device that can search each sentence in which information on a specified search noun is described completely, more completely and automatically in a short time.

[0009]

In order to solve the above problems, in a text search device of the present invention, a text file for storing document data, a noun included in the document data of the text file, and a corresponding noun The index file creating means for creating an index file that stores the relationship with the storage location, and each directive included in the document data of the text file, the storage location of the relevant directive and the noun pointed to by the relevant directive A vocabulary dictionary creating means for creating a vocabulary dictionary for storing relationships, a synonym dictionary for storing relationships between other nouns having substantially the same meaning for each noun, and a synonym for a search noun input from the outside A synonym dictionary search means for reading out a word from the synonym dictionary, and an in-line for reading out a storage position corresponding to the read synonym and search noun from the index file. And a file search means for reading a storage position of a reference word corresponding to a search noun from a reference word dictionary, and a text of a part corresponding to each storage position read by each search means. It is provided with a text file search means for reading from a text file and a sentence display means for displaying each read sentence.

[0010]

In the sentence retrieval device thus constructed, the relationship between each noun included in the document data of the text file and each storage position of the corresponding noun is stored in the index file. Further, the relationship between each directive word included in the document data of the text file, the storage position of the relevant directive word, and the noun pointed to by the relevant directive word is stored in the directive word dictionary. Further, the synonym dictionary stores the relationship between each noun and other nouns having substantially the same meaning.

From outside, a search noun (keyword)
When is input, the synonyms are first read by searching the synonym dictionary. Next, the index file is searched by the synonym of this time and the previous search noun, and each storage position is read. Further, the index word dictionary is searched with the previous search noun, and the storage position of the index word corresponding to the search noun is read. Finally, each sentence of the portion corresponding to each storage position read from the index file and the vocabulary dictionary is read from the text file and displayed and output.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the schematic arrangement of a text search apparatus according to the embodiment. This text search device is composed of a kind of information processing device such as a computer. Specifically, it is composed of hardware components such as files and dictionaries formed in a hard disk (HD) or an external storage device, and software means such as each unit configured as a business process (task) on a program. Has been done.

For example, the document reading unit 1 composed of an image reading device or the like having a character recognition function, reads an image of an original 10 described on a sheet and converts each character included in the image into a character code. , Write as text data to the next text file 2. Therefore, text file 2
Each document data is assigned a page number therein and stored for each page.

The index creating section 3 as an index file creating means, from the start position to the end position in the document data stored in the text file 2,
Each word is searched in turn, and each time a noun is searched,
The corresponding noun and the storage position of the page and the line in which the corresponding noun is stored in the text file 2 are read and registered in the index file 4. When the same noun is detected, only the storage position is additionally registered in the corresponding noun area of the index file 4.

Therefore, in the index file 4, as shown in FIG. 2, the corresponding noun 4a and the storage positions 4b, 4c, 4d, ... Of the corresponding noun are stored for each noun word. For example, it indicates that the noun 4a of "personal computer" is stored in the position 4b on the fifth line of page 1 and the position 4c on the 13th line of page 1.

The directional word extracting section 5 as directional word dictionary creating means extracts each directional word contained in the document data of the text file 2 and stores it with the storage position of the directional word and the noun pointed by the directional word. The relationship is determined and registered in order in the next vocabulary dictionary 6.

Specifically, from the beginning position to the ending position in the document data stored in the text file 2,
Each word is searched in turn, and each time a directive such as "this", "that", "that", "the former", "the latter" is searched, it goes back to the sentence one sentence or two sentences before. Then, by using a technique such as natural language processing, for example, it is determined what noun the corresponding reference word appears earlier. Then, one set of the corresponding demonstrative word and the corresponding noun (instructive noun) corresponding to the storage position of the mnemonic word is written into the mnemonic dictionary 6.

Therefore, in the vocabulary dictionary 6, as shown in FIG. 2, the relevant mnemonic 6a, the memory location 6b of the relevant mnemonic, and the noun 6c pointed to by the relevant mnemonic are stored for each name mnemonic. . For example, the instruction word 6a of "that" is stored in the position 4b of the 18th page, and this "that" actually indicates the noun 6c of "calculator".

Further, in the synonym dictionary 7, another noun (synonym) having substantially the same meaning as each noun 7a included in the document data expected to be filed in the text file 2 in advance. 7b, 7c, 7d, ... Are stored. For example, the noun 7a of "computer" and the noun 7b of "computer" and the noun 7b of "computer" are stored as synonyms.

When a search noun (keyword) is input from the sentence search input / output unit 9 which is composed of a man-machine device including a keyboard and a CRT display device, the search unit 8 receives
Each sentence containing the corresponding noun in the text file 2, the synonyms of the corresponding noun, and the directives pointing to them is read and returned to the sentence search input / output unit 9. The text search input / output unit 9 displays and outputs the received text on the CRT display device.

Next, details of the search operation performed by the search unit 8 in the state where the memory locations of the respective nouns are registered in the index file 4 and the nouns pointed to by the respective demonstrative words are registered in the mnemonic dictionary 6 will be described. This will be described with reference to the data flow chart shown in FIG. (1) A search noun (keyword) is input from the keyboard of the text search input / output unit 9 and transferred to the search unit 8. (2) Synonym dictionary 7 with the entered search noun (keyword)
Is read and the synonyms 7b and 7c of the corresponding noun 7a are read.

(3) The read noun 7a and synonyms 7b, 7
The index file 4 is searched with c to read the storage locations 4b, 4c, ... In which the noun 7a and the synonyms 7b, 7c are stored. (4) The noun 7a and the synonyms 7b and 7c previously read from the synonym dictionary 7 are searched for the noun (indicative noun) 6c pointed to by each demonstrative word 6a in the mnemonic word dictionary 6. (5) When the referential noun 6c matching the noun 7a and the synonyms 7b and 7c is found, the storage position 6b of the referential word 6a of the corresponding referential noun 6c is read.

(6) Nouns stored in the respective storage locations 4b, 4c, ..., 6b read from the index file 4 and the directive dictionary 6 in the text file 2,
Each sentence including a synonym and a directive is read. (7) Send each read sentence to the sentence search input / output unit 9. The text search input / output unit 9 displays each text received from the search unit 8 on, for example, a CRT display device.

In the text search device thus constructed, when the operator inputs a search noun (keyword) from the keyboard of the text search input / output unit 9, not only the corresponding noun entered by this key but also the corresponding noun Each sentence that includes synonyms, corresponding nouns, and directives such as “this”, “the”, “that”, “the former”, and “the latter” that refer to the synonyms is automatically read from the text file 2 and displayed on the CRT display screen. Is displayed. Therefore, it is possible to search each sentence in which the information about the specified search noun is described more completely and automatically in a short time without omission.

The present invention is not limited to the above embodiment. For example, as a method of displaying on the CRT display device, as described above, in addition to the method of displaying only each sentence received from the search unit 8 as it is, the corresponding noun, synonym, directive and storage position from the search unit 8 are displayed. Is also received at the same time, and corresponding positions in all the document data of the text file 2 are sequentially scrolled so that the searched sentences and positions appear on the display screen according to, for example, the operator's skip operation, etc. You may do it.

Further, the input directives may be limited to those indicating a search noun (keyword), and the directives corresponding to the synonyms may be excluded from the search. In this way, the operator can arbitrarily specify how much the search range is expanded with respect to the search noun (keyword).

Furthermore, "hereinafter A is abbreviated to B" and "hereinafter A
It is also possible to regard “B” in a phrase such as “call B” as a directive indicating “A” and newly set “B” as a search target. It is also possible to create the vocabulary dictionary 6 by referring to the manuscript 10 and manually in advance while checking the relationship between the vocabulary and the noun.

[0029]

As described above, according to the text search apparatus of the present invention, in addition to the index file and the synonym dictionary, each instruction such as "this", "that", "that", "the former", "the latter", etc. A vocabulary dictionary is provided to store the relationship between words and nouns. Therefore, each sentence in which information about the specified search noun (keyword) is described can be searched completely, automatically, and in a short time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a text search device according to an embodiment of the present invention.

FIG. 2 is a diagram showing files stored in the apparatus of the embodiment and contents stored in each dictionary.

FIG. 3 is a diagram showing a data flow showing an operation of a search unit in the apparatus of the embodiment.

[Explanation of symbols]

1 ... text reading unit, 2 ... text file, 3 ... index creating unit, 4 ... index file, 5 ... indicator extraction unit, 6 ... indicator dictionary, 7 ... synonym dictionary, 8 ... search unit, 9 ... Text search input / output section, 10 ... manuscript.

Claims (1)

[Claims] 1. An index file creation for creating a text file for storing document data and an index file for storing the relationship between each noun included in the document data of the text file and the storage position of the corresponding noun. And a directional word dictionary creating means for creating a directional word dictionary for storing the relationship between each directional word included in the text file document data, the storage position of the corresponding directional word, and the noun pointed to by the corresponding directional word, A synonym dictionary for storing a relationship with another noun having substantially the same meaning with respect to a noun, and a synonym dictionary search means for reading a synonym of a search noun input from the outside from the synonym dictionary, Index file searching means for reading the synonym and the storage location corresponding to the search noun from the index file, and corresponding to the search noun A directional word dictionary search means for reading the storage position of the directional word from the directional word dictionary, and a text file for reading each sentence of the portion corresponding to each storage position read by the respective searching means from the text file A sentence search device comprising a search means and a sentence display means for displaying each read sentence.