JP2746198B2 - Database search method for full text - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for retrieving a full-text database, and more particularly to a full-text database for a document-based database such as an electronic publication for speeding up retrieval by keywords and efficiently presenting retrieval results. Search method.

[0002]

2. Description of the Related Art Conventionally, a database handling document-based data such as an electronic publication uses a database structure of a format called a hyperlink text in order to obtain related information in the database.

In this method, a data provider creates a network structure in which various pieces of related information in a database are linked as links.

[0004]

In the above-described conventional hyperlink format, it is necessary to create a link network structure by extracting reference items, related items, similar items, detailed descriptions, and the like at the time of database creation.

[0005] In order to construct a link network that can satisfy all the various search requests of the database user, it is necessary to extract a large number of items, and it is difficult for the data provider to sufficiently satisfy the user's request.

If there is a discrepancy between the information requested by the user and the information set by the provider, the user recognizes that erroneous information has been provided, and the desired information cannot be obtained.

[0007] If link information is not added to the information to be sought, the database user must take another means to obtain the related information.

An object of the present invention is to provide a user with various search requests.
An object of the present invention is to provide a database search system that can respond to the following.

Another object of the present invention is to provide a database search system that allows a user to efficiently search for information desired by a uniform operation.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a method for searching a full-text database of a hypertext-based document database search system in which a database user specifies an arbitrary search condition. A search key input mechanism for inputting a search request by pointing to a key, a database storage for storing data having a hypertext format link structure,
A link search mechanism for interpreting the input search request and searching for the corresponding information in the database by following the existing link structure; and a search function that functions simultaneously with the link search mechanism and performs the search.
A full-text search mechanism for <br/> extracts candidates of the relevant information corresponding to the search request from the database, the link information machine
Control the operation of the structure unit and the full-text search mechanism unit
Together with the link information mechanism and the full-text searcher
It includes a search result management mechanism that manages and organizes search results from components and creates information for presentation to users, and a display mechanism that presents relevant information to database users. It is.

[0011]

The database search system of the present invention is performed by a uniform operation such as pointing a search key on a data display screen in a database having a hyperlink structure created in advance by a data provider as shown in FIG. A search key input mechanism for recognizing the search request, a link search mechanism for searching for the relevant information by following the link network when existing link information is added to the input search key, and a character string including the search key A full-text search mechanism that searches for data from all data and extracts relevant information, a search result management mechanism that collects and organizes the search results that are requested, and selects information to provide to users, and organized search information And a display mechanism for presenting to the user.

[0012]

Next, the present invention will be described with reference to the drawings.

FIG. 2 is a configuration diagram of a database search system according to one embodiment of the present invention.

The database user selects a search key by operating a pointing device such as a mouse on the terminal 1T.

The selected search key is recognized by the search key input mechanism 110 and passed to the search mechanism, ie, the link search mechanism 130 and the full text search mechanism 140.

The link search mechanism 130 and the full text search mechanism 140 search the database 160, respectively, and pass the obtained results to the search result management mechanism 150.

The search result management mechanism 150 arranges the information of the passed search results and creates a result display item list.

The created item list is stored in the display mechanism unit 120.
Is displayed on the terminal 1T, and the user selects information to be actually extracted from the presented list. When the information is selected, the display mechanism unit 120 displays the corresponding information body from the database 160 on the terminal 1T.

FIG. 3 shows a flow from input of a search key to display of a search result.

The link search mechanism 130 searches the database 160 for the search key obtained by the search key input mechanism 110 and determines whether an existing link network exists. If link information exists, position information for displaying the corresponding information in the database 160;
The label information is passed to the search result management mechanism 150.

The search result management unit 150 passes the search result to the display unit 120, and the display unit 120 displays the corresponding information on the terminal 1T.

The search result management mechanism 150 passes the result of the link search to the display mechanism 120 and at the same time passes the search key to the full text search mechanism 140. The full-text search mechanism 140 acquires the position information and the label information where the corresponding character string exists from the database 160.

The obtained search information is organized into useful items by the search result management mechanism 150 and stored.

The stored information is displayed by the display mechanism unit 120 when it is determined that the existing link information obtained by the link search is not the one intended by the user, or when another related information is requested. Presented to the user.

If no existing link information is added to the obtained search key, the full-text search mechanism 140 searches the database 160 to obtain position information and label information in which a character string corresponding to the search key exists. .

The obtained search information is organized into useful items by the search result management mechanism 150 and stored.

The display mechanism 120 is a search result management mechanism 1
The search results arranged and stored by the server 50 are presented to the terminal 1T.

FIG. 4 shows an operation flow of the management mechanism of the search result management mechanism section 150.

First, in step 151, the search result management mechanism section 150 acquires a search result from the search mechanism section.
It contains information on the appearance position of the search result, the minimum constituent unit of the database in which the search result is located, and the label in which the label is attached.

Next, in step 152, it is determined from the information obtained in step 151 whether the obtained information is information on the existing hyperlink network. Step 1
If it is determined by 52 that the search result is a search result from the link information, a display request is immediately issued to the display mechanism unit 120 in step 155.

If it is determined in step 152 that the search result is not the search result from the hyperlink information, step 153
Performs selection of acquired information.

In the rearrangement performed in step 153, selection is performed so that only one result is displayed in the same paragraph unit so that a plurality of results in the same display unit are not overlapped when the search result is displayed.

Next, the search results arranged in step 153 are accumulated in a list for display in step 154.

Finally, in step 155, a list of the stored search results is passed to the display mechanism unit 120, and a display request is issued.

[0035]

As described above, according to the present invention,
Since it is possible to search for items other than the hyperlink information extracted by the database creator, it is possible to provide search results that match the user's request.

Furthermore, the user can obtain a wide range of search results by extracting the existing link information and extracting the corresponding information from all the data simply by performing a uniform operation of pointing the search key with the pointing device. Becomes

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a hyperlink database.

FIG. 2 is a configuration diagram of one embodiment of the present invention.

FIG. 3 is a flowchart showing an operation of a search mechanism.

FIG. 4 is a flowchart showing search result management.

[Explanation of symbols]

 1T terminal 110 search key input mechanism 120 display mechanism 130 link search mechanism 140 full text search mechanism 150 search result management mechanism 160 database 151 search result acquisition step 152 link information determination step 153 search result reduction step 154 list creation step 155 Display request step

Claims (1)

(57) [Claims] In a full-text database search method of a hypertext-based document database search system in which a database user specifies an arbitrary search condition, a search request is made by the database user pointing to a search key on a display screen. A search key input mechanism for inputting data, a database storage for storing data having a hypertext link structure, and interpreting the input search request and searching for the corresponding information in the database by following the existing link structure A link search mechanism unit, and a search request functioning simultaneously with and inputting at the same time as the link search mechanism unit.
A full-text search mechanism for extracting a candidate for related information corresponding to the request from the database, the link information mechanism, and the full-text search mechanism.
Of the link information mechanism and the file
And the search result management mechanism unit which performs the information created for presentation to manage and organize user search results from the Le-text search mechanism, to include a display mechanism section for presenting the corresponding information in the database user A featured database search method for full-text databases.