JPH02113368A - Information retrieving method - Google Patents

Abstract

PURPOSE:To enable speedy, efficient retrieval by by extracting another key word which is made to correspond to information retrieved by inputting one key word and performing the retrieval by using the extracted key word. CONSTITUTION:This method is equipped with an optical disk part 3 which writes or reads image information on or out of an optical disk 4, a magnetic disk part 5 which writes or reads a key word on or out of the magnetic disk, 6 and a memory 7 where the key word read properly out of the magnetic disk 6 is stored. Then a control part 8 extracts a key word other than the input key word among key words made to correspond to information retrieved by inputting the optional key word and stores the extracted key word on the memory 7, and this extracted key word is used to perform the retrieval again. Consequently, pieces of information are retrieved one after another by inputting one key word to perform the retrieval efficiently in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an information retrieval method for storing information indicating documents, drawings, etc., and retrieving the information to retrieve desired information.

(b) Image information indicating conventional technical documents, drawings, etc. is stored in a storage medium, such as an optical disk, and keywords for each of these image information are stored in a storage medium, such as a floppy disk, and by inputting this keyword, the optical disk is An image information storage and retrieval device for searching and reading out desired image information from stored image information is disclosed in Japanese Patent Laid-Open No. 62-1052.
This is already known from Publication No. 70 and the like.

(c) Problems to be Solved by the Invention In such a device, image information is searched by inputting the keyword input at the time of image information registration as described above. Therefore, there is a difficulty in having to remember the keywords accurately.

Therefore, it is possible to enable searches by entering ambiguous keywords (keyword partial match search).
If the amount of stored image information is large, the number of pieces of image information that correspond to one keyword will also be large, and this alone will not be enough to perform a quick search.

(d) Means for Solving the Problems The information retrieval method of the present invention is an information retrieval method in which information registered by associating a plurality of keywords is searched by using a keyword. The present invention is characterized in that keywords other than the inputted keywords are extracted from a plurality of keywords associated with each piece of information, and the search is performed again using the extracted keywords.

(e) Effects In the present invention, it is noted that generally one piece of information is associated with a plurality of keywords, and similar information is likely associated with similar keywords, and Extract other keywords associated with the information searched by entering
This extracted keyword is also used to perform a search.

(F) Embodiment FIG. 1 is a block diagram showing an example of an information record ↑α search device that performs the information search method of the present invention. (1) is a keyboard for inputting keywords and various operation commands, etc., (2) is a CRT display for displaying image information and keywords, etc. as appropriate, and (3) is for writing and/or reading image information on an optical disk. Optical disk unit that performs (
5) is a magnetic disk unit that writes and/or reads keywords on the magnetic disk (6); (7) is a memory that stores the keywords appropriately read from the magnetic disk (6); and (8) is a This is a control unit that controls each of these components, and includes a CPU that performs various controls, a buffer memory that temporarily stores various information, and an image information compression/expansion unit.

FIG. 2 is a flowchart showing the search method of the present invention, and the search method of the present invention will be explained using this figure.

First, enter a keyword from the keyboard (1) that you think is best for searching for the desired image information, and then
8) starts the search. That is, when the magnetic disk unit (5) reads a keyword from the magnetic disk (6), the control unit (8) compares this keyword with the keyword input from the keyboard (1). If there is a match, another keyword (hereinafter referred to as a supplementary keyword) associated with the image information having that keyword is extracted and stored in the memory (7).

This search operation is performed for all keywords stored on the magnetic disk (6), and each time there is a keyword input from the keyboard (1), its complementary keyword is stored in the memory (7). Note that the frequency of appearance of supplementary keywords is also stored in the memory (7). When all the search operations are completed, the image information having the keyword input from the keyboard (1) is displayed as the search result.
displayed on the RT display (2). By looking at this display, it is possible to confirm whether or not the desired image information has been retrieved.

If, as a result of the search, no corresponding image information exists, it is assumed that the input keyword is completely off-target, and the search operation ends.

On the other hand, if there is image information that has been searched, but the desired information is not there, by instructing a re-search from the keyboard (1), the control unit (8) will control the memory (
7) The one with the highest frequency of appearance is selected from among the supplementary keywords stored in step 7), and the above-described search is performed again using this supplementary keyword. At this time, first use the keyboard (1
) is already known to not be the desired image information, so it is excluded from the current search target. Furthermore, with regard to the memory of supplementary keywords, those entered manually from the keyboard (1) are excluded.

In this way, one keyword can be added to the keyboard (1)
By inputting from , searches are performed one after another, and desired image information is retrieved.

(G) Effects of the Invention According to the present invention, by inputting an arbitrary keyword, keywords other than the inputted keyword are extracted from a plurality of keywords associated with each piece of information searched for, Since the search is performed again using these unextracted keywords, searches can be performed one after another by inputting one keyword, making it possible to perform efficient searches in a short time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of an information storage and retrieval device that performs the information retrieval method of the present invention, and FIG. 2 is a flowchart showing an embodiment of the information retrieval method of the present invention. (1)...keyboard, (2)...CRT display, (4)...optical disk, (6)...magnetic disk, (7)...memory, (8)...control unit. Figure 1

Claims (2)

[Claims] (1) Information registered by associating multiple keywords,
In an information retrieval method that searches using keywords, by inputting an arbitrary keyword, keywords other than the input keyword are extracted from among the plurality of keywords associated with each of the retrieved information. An information retrieval method characterized by performing a search again using extracted keywords. (2) The information retrieval method according to item 1, wherein the keyword to be extracted is the one with the highest frequency of appearance among a plurality of keywords.