JP2002099566A - Method and device for information retrieval - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome the problem of a conventional method for information retrieval such that it takes much time and labor to narrow down objective information because the objective information has to be found while watching the contents (text information of regular text) by displaying information extracted by the first retrieval. SOLUTION: In the present invention, text data including a retrieval character string are retrieved from a storage means by inputting the retrieval character string. Then, when desired text data are specified from a retrieval list of the retrieved text data, the number of the retrieval character strings included in the designated text data is displayed together with the contents of the retrieval character string.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information search method and an information search apparatus which display a search result of a character string included in search target information and which can easily narrow down target information.

[0002]

2. Description of the Related Art In recent years, many methods have been proposed for searching information over a wide range by making information search quick and easy. For example, when searching for desired information on the Internet, if a character string that seems to be related to the information to be searched is specified, the information including the specified character string is searched, and the reliability of each search result is determined. There is known a method in which a degree (a degree of reliability of a specified character string is displayed as a score of what percentage) is displayed together with a search result and displayed. However, even in this search method,
When there are a plurality of pieces of information including the designated character string, a plurality of titles and the like are displayed on the display together with the reliability, and when the title or the like is designated, all the contents of the searched information are displayed. It has a form.

[0003]

However, in the conventional information search method, since a character string included in the information to be searched is designated, only a primary search for searching for information including the character string has been performed. The searcher must find the target information while displaying the information extracted by the primary search on the display and viewing the contents (text information of the text). Therefore, there is a problem that it takes a lot of time to narrow down the target information from the searched information.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to easily narrow down target information from information (text data) retrieved by designating a character string. It is an object of the present invention to provide an information search method and an information search device that perform an information search.

[0005]

In order to achieve the above object, in an information retrieval method according to the present invention, a search character string is used to retrieve desired text data from a plurality of text data stored in a storage means. Is input, and text data including the input search character string is searched from the storage means, a search list of the searched text data is displayed, and desired text data is displayed from the displayed search list. Is specified, and the number of search character strings included in the specified text data is displayed together with the content of the search character string.

That is, in this information search method, when searching for text data, by checking how many input search character strings are included in the text data, the purpose can be determined from a plurality of text data. It is possible to easily narrow down the text data to be processed.

Further, in the information search method of the present invention, a first search character string is input to search for desired text data from a plurality of text data stored in the storage means, and the first input character string is input. Means for generating a second search character string by subjecting the first search character string and text data including the second search character string obtained by expanding the first search character string to the second search character string , A search list of the searched text data is displayed, a desired text data is designated from the displayed search list, and a first text data included in the designated text data is designated. The number of search character strings is displayed together with the content of the first search character string, and the number of second search character strings is displayed together with the content of the second search character string. .

That is, in this information search method, when searching for text data, it is checked how many times the input search character string and the character string obtained by expanding this search character string are included in the text data. Thus, target text data can be easily narrowed down from a plurality of text data.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a block diagram showing a configuration of an information retrieval apparatus according to a first embodiment of the present invention.

In this information search apparatus, a database 11 for storing text data to be searched, input means 12, search means 13, display means 14, and designation means 1
5. Display control means 16.

The database 11 stores information including text data to be searched. The input unit 12 is an interface for a searcher to input a search character string to search for desired information from information stored in the database 11, and is configured by, for example, a keyboard or the like. is there. The search unit 13 is a unit for searching for text data including the search character string from the information stored in the database 11 using the search character string input from the search character string input unit 12. The display unit 14 displays a list of titles and the like of information searched by the search unit 13 and text data of the searched information. The designation unit 15 is an interface for instructing the searcher from the search list displayed on the display unit 14 about information whose contents are desired to be confirmed, and is constituted by, for example, a mouse.
The display control unit 16 searches the information specified by the specifying unit 15 with the contents of the search character string input by the input unit 12 and searches for the information specified by the specifying unit 15. This is means for controlling the display means 14 to display the number of search character strings included therein.

A description will now be given of a text data retrieval processing routine in the information retrieval apparatus having such a configuration.

In this information retrieval apparatus, as shown in FIG. 2, a retrieval character string input step (ST11) for inputting a retrieval character string contained in the information to be retrieved by the searcher from the input means 12; A search step (ST12) for performing a process of searching for information including the search character string from the information stored in the database 11 based on the searched search character string. Based on the search result, the searched information list is displayed. A search result display step (ST13) to be displayed on the display means 14, a search document specification step to specify desired information from the search result list displayed on the display means 14 (ST14), Search character string counting step for counting how many search character strings are included in the text data (ST15)
And displaying the result (indicating how many search character strings are included in the text data) together with the search character string (ST16).

That is, in the information search apparatus of the present invention, first, in a search character string input step (ST11), a searcher searches for desired data from text data stored in the database 11 from the input means 12. For example, a search character string (for example, a search character string “recognition”) is input.

Next, in a search step (ST12), based on the search character string input from the input means 12, information having the search character string is searched from the text data stored in the database 11. Further, in a search result display step (ST13), a list of the search results is displayed on the display means 14.

Further, a search document designation step (ST14)
Then, the searcher specifies data from the list of search results displayed on the display unit 14 for which the user wants to confirm the content of the information. In this information search device, when a searcher specifies a desired one from a search list, input is performed when searching for text data from the database 11 before displaying the content of the specified text data. It has a function of calculating how many searched character strings are included in the text data specified by the searcher and displaying the result. That is, the number of search character strings (characters of "recognition") input at the time of search is included in the text data specified by the searcher (ST16), and the count result is displayed on the display control means. In step ST17, a search character string ("recognition") is displayed together with the search character string in a predetermined area of the display means.

FIG. 3 shows an example of the display result. In this display form, when the designation means 15 such as a mouse is moved to a position of a desired text data from a search list, an input is made at that position. An example is shown in which the term “recognition” of the retrieved search character example and a numerical value “3” indicating how many search character strings are included in the text data are displayed. Further, in the display form shown in FIG. 4, the term “recognition” of the search character string and the number of the search character string included in the text data are different from the area where the search list is displayed. An example is shown in which a numerical value “3” indicating is displayed.

In this information search method, the searcher checks the contents of the entire text data on the display means 14 before confirming whether or not the data is the desired data. Because you can check how many items are included in the data, you can specify the character string compared with the method of displaying the full text of the searched data and checking the contents of the data. Target information can be easily narrowed down from information (text data). (Second embodiment)
FIG. 5 is a block diagram showing the configuration of the information search device according to the second embodiment.

This information search apparatus shows a configuration in which a search character string is expanded and searched (for example, a search is performed by expanding into a character string of synonyms and homonyms).

In the information search device shown in FIG. 5, the same components as those of the information search device of FIG. 1 are denoted by the same reference numerals. In this information retrieval apparatus, a database 11 for storing text data, an input unit 12, a retrieval unit 13, a display unit 14, a designation unit 15, a display control unit 16, a search character string extension unit 21 and an extension correspondence storage unit 22 are used. It is configured.

The search character string extending means 21 is provided for the input means 12.
Is expanded to, for example, a character string of a synonym or homonymous object, and if the text data stored in the database 11 is obtained by character recognition, the character string based on misreading tendency is used. Is extended by replacing the character string.

For example, as shown in FIG. 6, when the search character string expansion unit 21 performs an expansion process using a synonym, when the search word “computer” is input from the input unit 12, the “computer” , "PC", and "PC".

The search character string expansion means 21 can also perform an expansion process using a homonymous object word. In this case, as shown in FIG. When an input is made, processing for compensating for expansion of characters such as "contrast", "symmetry", and "symptoms" is executed in consideration of the possibility of an error in kana-kanji conversion by the searcher.

Further, if the text data stored in the database 11 is obtained as a result of character recognition of a document image, the search character example extending means 21 may possibly cause a character to be erroneously recognized. In consideration of the above, the extension processing can be performed. For example, as shown in FIG. 8, when the search word “robot” is input, the search character string expansion unit 21 uses the “mouth (kanji) bot” for the term “robot” according to the misreading tendency. , "Ropot", and "Robot (Kanji)" are expanded.

The extension correspondence storage means 22 stores the search character string extended by the search character string
This is for storing which search word of the search character string input by the input means 12 corresponds.

A description will be given of the flow of a search process for text data stored in the database 11 in the information search apparatus having such a configuration.

In this information search apparatus, as shown in FIG. 8, a search character string input step (ST21) for inputting a search character string included in information desired by a searcher from the input means 12 (ST21). A step of performing a process of expanding the search character string input by the character expansion unit 21 (ST22), and an extended correspondence storage step of storing the expanded search character string in association with the input search character string (ST23). Searching for information including the search character string from the information stored in the database 11 based on the expanded search character string (ST24); displaying the searched information list based on the search result; 1
4, a search result display step (ST25), and a search document specification step of specifying desired information from the search result list displayed on the display unit 14 (ST2).
6) Further, a search character string counting step (ST27) for counting how many of the input search character string and the expanded search character string are included in the text data of the designated information, and the result thereof (Showing how many of the input search character string and the expanded search character string are included in the text data) for each search character string (ST28).

That is, in this information search method, first, a searcher searches for desired data from text data stored in the database 11 from the input unit 12 by using a search character string (for example, “computer”). Is input (ST21).

Next, expansion processing is performed on the search character string input by the input means 12 by the search character expansion means 21 (ST22). As for the expansion process, as described above, the search character string input from the input unit 12 is expanded to, for example, a character string of a synonym or a homonymous object, and the text data stored in the database 11 is converted by character recognition. If it is obtained, a process of expanding a character string by replacing characters based on the tendency of misreading is performed. That is, if the search character string “computer” is input from the input unit 12, the synonym expansion processing is performed as described above, and character strings such as “computer”, “PC”, and “PC” are extracted. I do.

Next, the search character strings ("computer", "PC", "P
C ”) and the search character string (“ computer ”) input by the input unit 12 is stored in the extended correspondence storage unit 22 (ST23). Further, in a search step (ST24), the search character string ("computer") input by the input means 11 and the expansion processing performed by the search character string expansion means 21 and the expansion stored in the expansion correspondence storage means 22. Search string ("Calculator", "PC",
Based on "PC"), text data including these search character strings is searched from the database 11, and the results are displayed on the display means 14 as a list of the search results (ST25).

Next, from the list of search results displayed on the display means 14, the searcher specifies data for which he wants to confirm the contents of the information (ST26).

In this information search device, when a searcher specifies a desired one from a search list, before displaying the contents of the specified text data,
A search character string input when searching for text data from the database 11 and how many search character strings expanded by the search character string expansion means 21 are included in the text data are calculated (ST27). Then, the result is displayed on the display means 14 (ST28).

When a search character string “computer” is input from the input means 12, the search character string expansion means 21 changes the word “computer” to “computer”,
As shown in FIG. 9, the search terms before expansion (“computer”) and the search terms after expansion (“computer”, “PC”, “PC”) are expanded to synonyms such as “PC” and “PC”. PC)), the number included in the designated text data is displayed.

In the example shown in FIG. 9, the search word “computer”, which is the search word before expansion input from the input unit 12, is 3, and the search character string expansion unit 21 expands the search word “computer”. In this example, "computer" is 2, "PC" is 3, and "PC" is 0. As a display form, as shown in FIG. 9, a search character string before expansion and a search character string after expansion may be displayed at the same time. As shown in FIG. The search word “computer” as the previous search word and the number including the search word are displayed, and the expanded search words (“computer”, “PC”, “PC”) are displayed based on the instruction from the specifying unit 15 or the like. May be displayed in the text data.

Further, as shown in FIG. 3, when the designation means 15 such as a mouse is moved to a position of a desired text data in the search list as shown in FIG. 3, the display is made at that position. Alternatively, as shown in FIG. 4, the search list may be displayed in an area different from the area where the search list is displayed.

Although not shown, the input means 12
When the search word “object” is input from the search term and expanded by the search character string expansion means 21 into homonyms such as “contrast”, “symmetric”, and “symptomatic”, the search word before expansion is similarly determined. ("Target") and expanded search terms ("Control", "Symmetry", "Symptom"), the number of search terms contained in the specified text data can be displayed in the same way. it can. Furthermore, for the document image subjected to the character recognition processing, for example, “robot” which is a search word before the expansion processing and “mouth (kanji) bot” and “ropot” which are the search words after the expansion processing are performed. , "Robot (Kanji)"
Similarly, the number of search terms included in each designated document image can be displayed.

That is, in this information search method,
By inputting a search character string, the searcher can check the entire contents of the information of the searched text data on the display unit 14 before confirming whether the information is the desired information.
It is easy to determine how many search character strings are included in the information of the searched text data after the search character strings and expanded search character strings (synonyms, homonyms, expanded words based on misreading tendency) It is possible to confirm. Therefore, the information required by the searcher can be easily narrowed out of the information searched from the database 11.

Further, in this information search method, a character string such as a synonym, a homonymous word, or an expanded word based on the tendency of misreading is extracted from the input search character string, and the input search character string and these Based on the expanded character strings, text data including these character strings can be searched from the database, so that the range of the search can be expanded.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist thereof.

[0040]

As described in detail above, in the present invention,
When a search character string is input to search for desired text data from a plurality of text data stored in the storage means, and a search for text data including the search character string is performed, Since the number of search strings included can be displayed along with the content of the search string, when searching text data, check how many search strings are included in the text data Thus, target text data can be easily narrowed down from a plurality of text data.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an information search device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a text data search processing routine in the apparatus.

FIG. 3 is a diagram showing an example of a display form in text data search processing in the same device.

FIG. 4 is a diagram showing an example of a display form in text data search processing in the same device.

FIG. 5 is a block diagram illustrating a configuration of an information search device according to a second embodiment of the present invention.

FIG. 6 is a diagram showing an example (synonym) of a search character string extension process in the same device.

FIG. 7 is a diagram showing an example of a search character string extension process (homophonetic) in the same device.

FIG. 8 is a diagram showing an example of a process of expanding a search character string in the apparatus (process based on misreading tendency).

FIG. 9 is a diagram showing a text data search processing routine in the apparatus.

FIG. 10 is a diagram showing an example of a display form in text data search processing in the same device.

FIG. 11 is a diagram showing an example of a display form in text data search processing in the same device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Database 12 ... Input means 13 ... Search means 14 ... Display means 15 ... Designation means 16 ... Display control means 21 ... Search character string expansion means 22 ... Extension correspondence storage means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroaki Kubota 1st address, Komukai Toshiba-cho, Saiwai-ku, Kawasaki-shi, Kanagawa F-term in the Toshiba R & D Center (reference) 5B075 ND03 NK02 NK35 PP02 PP03 PP13 PP22 PQ02 PQ27 PQ46 QP03

Claims (13)

[Claims] 1. An information retrieval method for retrieving desired text data from a storage means storing a plurality of text data to be searched, comprising the steps of: selecting a desired text data from a plurality of text data stored in the storage means; Inputting a search character string to search for, searching the text data including the input search character string from the storage means, displaying a search list of the searched text data, and displaying the displayed search An information search method characterized by specifying desired text data from a list and displaying the number of search character strings included in the specified text data together with the content of the search character string. 2. The method according to claim 1, wherein when the content of the search character string and the number of the search character strings are displayed, the search list is displayed in an overlapping manner. The information retrieval method described in 1. 3. The method according to claim 1, wherein when the content of the search character string and the number of the search character strings are displayed, the search list is displayed in an area different from the area in which the search list is displayed. The information retrieval method according to claim 1. 4. An information retrieval method for retrieving desired text data from a storage means in which a plurality of text data to be searched is stored, wherein the desired text data is retrieved from the plurality of text data stored in the storage means. Inputting a first search character string to search for, and expanding the input first search character string to create a second search character string; Searching the storage means for text data including the second search character string obtained by expanding the first search character string; displaying a search list of the searched text data; Designate desired text data from among the above, and the first text data included in the designated text data
And displaying the number of search character strings together with the content of the first search character string, and displaying the number of second search character strings together with the content of the second search character string. Method. 5. The content of the first search character string, the number of the first search character string included, the content of the second search character string, and the second search character string are included. 5. The information retrieval method according to claim 4, wherein the number and the number are displayed simultaneously. 6. The information search method according to claim 4, wherein the contents of said first search character string and the number of said first search character string are preferentially displayed. 7. A process for extracting a character string synonymous with the content of the first search character string when creating the second search character string by expanding the content of the first search character string. 5. The information retrieval method according to claim 4, wherein the information retrieval is performed. 8. When the second search character string is created by expanding the contents of the first search character string, a character string of a homonymous word with the contents of the first search character string is extracted. 5. The information search method according to claim 4, wherein a process is performed. 9. When the second search character string is created by expanding the contents of the first search character string, the contents of the first search character string when recognizing characters tend to be misread. 5. The information retrieval method according to claim 4, wherein a process of extracting a character string indicating "." 10. A storage means in which a plurality of text data to be searched are stored, and a search character string is inputted to search for desired text data from the plurality of text data stored in the storage means. Input means; search means for searching the storage means for text data including the search character string input by the input means; display means for displaying a search list of the text data searched by the search means; A designation means for designating desired text data from the search list displayed on the display means; and a search string contained in the text data designated by the designation means. An information retrieval apparatus, comprising: control means for causing the display means to display the content together with the content. 11. A storage means for storing a plurality of text data to be searched, and a first search character string for searching desired text data from the plurality of text data stored in the storage means. Input means for inputting the first search character string, expansion means for expanding the first search character string input by the input means to create a second search character string, and first search character string input by the input means Search means for searching the storage means for text data including the second search character string expanded by the expansion means; display means for displaying a search list of the text data searched by the search means; Designating means for designating desired text data from the search list displayed by the display means; and a first search included in the text data designated by the designating means. Display control means for displaying the number of character strings together with the first search character string on the display means, and for displaying the number of the second search character strings on the display means together with the content of the second search character string An information retrieval device, comprising: 12. An information retrieval method for retrieving desired text data from a storage means in which a plurality of text data to be searched is stored, wherein the desired text data is retrieved from the plurality of text data stored in the storage means. A search character string is input to search for, and text data including the input search character string is searched from the storage unit. The number of search character strings included in the searched text data is determined by the search character. An information retrieval method characterized by being displayed together with the contents of a column. 13. An information retrieval method for retrieving desired text data from a storage means in which a plurality of text data to be searched is stored, wherein the desired text data is retrieved from the plurality of text data stored in the storage means. Inputting a first search character string to search for, and expanding the input first search character string to create a second search character string; Searching the storage means for text data including the second search character string obtained by expanding the first search character string; and searching for the first data included in the searched text data.
And displaying the number of search character strings together with the content of the first search character string, and displaying the number of second search character strings together with the content of the second search character string. Method.