JPS63204434A - Electronic document retrieving device - Google Patents

Abstract

PURPOSE:To retrieve the documents with high efficiency by storing the corresponding relation between the combination of past retrieving keys and a document or a group of documents and utilizing the information on the retrieving history in the subsequent retrieval. CONSTITUTION:A retrieving key supplied from an input means 1 is stored in a key storing means 2 by a control means 6. Then the means 6 starts retrieving the documents stored in a document storing means 3. In this case, if the combination of the same retrieving keys is stored in a retrieving history storing means 4, the information on said combination is utilized. Then the retrieving job is finished as long as the retrieving result displayed on a display means 5 is satisfactory. Otherwise the retrieving job is repeated. When the retrieving result is satisfactory, the corresponding relation between the combination of the retrieving keys used before and a retrieved document is stored in the means 4. Then the retrieving job is over. In such a constitution, the documents can be retrieved with high efficiency as long as they are once retrieved despite the presence of a group of documents that cannot be shown in he combination of the retrieving keys.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an electronic document search device.

(Prior Art) Conventionally, when searching with an electronic document retrieval device, search clues or logical combinations of search clues are often used, but the combination cannot express the document or document group to be searched. There is. That is, in the conventional method, a search must be performed using information compressed in the form of a search clue or a logical combination of search clues. Therefore, in the conventional method, there are cases where it is necessary to go through many search operations.

(Problems to be Solved by the Invention) However, it is inefficient for the searcher to repeat complicated operations every time.

The purpose of the present invention is to solve the problem that conventional methods have a limited ability to express search clues, utilize past history information in searching for electronic documents, and
It is an object of the present invention to provide an efficient electronic document retrieval device by improving the ability to express information in the electronic document retrieval device.

(Means for Solving the Problem) An apparatus for searching for digitized documents includes means for inputting digitized documents and search clues such as keywords, search clue storage means for storing the search clues, and storage for storing the digitized documents. a search history storage means for storing a correspondence relationship from a combination of search clues to a document; a display means for displaying a search interaction process and a search result; It comprises a document storage means, a control means for controlling the search history storage means, and the display means.

(Operation) According to the configuration of the present invention, when a document or document group that has not been searched by conventional methods is generated by a combination of search clues, the combination of search clues and the document or document to be searched for the combination of search clues are The correspondence with the group can be stored in the search history storage means. Therefore, it is possible to perform a search using the conventional method and a search using the search history storage means, and it is possible to perform an efficient search.

For example, as shown in Figure 2(a), documents D1 and D2 are retrieved using the logical product of 2 and KIAND K2, but as shown in Figure 2(b), the search clue is i.
Logical product of 2 and 3 KI AND K, AND 3
Now assume that documents D2 and 03 are to be retrieved.

However, KI AND K2 AND Ks means K,
Since the conditions are logically stricter than AND K2, K,
The document searched by AND K2^ND K3 is x1
There should be documents D2 and D3 retrieved by 8ND K2, or less. However, in reality, there are cases where it is desired to perform a search that is logically contradictory due to a type of context effect or the like. In such cases, conventional methods cannot deal with the problem. In the present invention, as shown in FIG. 2(c), the correspondence relationship from s AND K2 AND Ks to documents D2 and D3 is stored in the search history storage device as R1, and the expressive ability is improved compared to the conventional method. be able to.

(Example) Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The input means 1 of this embodiment is an input means such as a keyboard. The search clue storage means 2 is a means for making it possible to search for relevant information for a document. - It is generally possible to assign a plurality of search clues to a document, and search for related documents by referring to these search clues. The document storage means 3 is a means for storing electronic documents including character code data, graphic data, image data, and the like. The search history storage means 4 is a means for storing the correspondence between combinations of search clues and documents or document groups. The display means 5 is a means for displaying processing steps, processing results, etc., and is usually constituted by a CRT display or the like. The control means 6, according to the input means 1,
The search clue storage means 2 and the document storage means 3
and means for controlling the data in the search history storage means 4 and supplying the processing process or processing results to the display means 5.

FIGS. 3(a) and 3(b) represent an example of a detailed procedure of the control means 6 in the form of a flowchart. First, Figure 3 (
a> is searched in step 7. The details of this search step 7 correspond to the flowchart in FIG. 3(b). That is, first, input is performed in step 12 of inputting a search clue. At this time, it is determined in step 13 whether the same combination of search clues has been previously included in the search history storage means. If it is included, the information is used to search in step 14. Otherwise, a search is performed in step 15 using conventional techniques. After executing step 14 or step 15, the search results are displayed in step 16.

Here, return to the flowchart in Figure 3(a) from the flowchart in Figure 3(b), and determine in step 8 whether the result is satisfactory to the searcher, and if it is, the process ends.If not, , further search is performed in search step 9. In this step, the same thing as step 7 can be done. As a result, the searcher judges whether the searcher is satisfied again in step 10, and if it is satisfied, The correspondence between the combination of search clues used at that time and the retrieved document is stored in the search history storage means in step 11, and the process ends.If step 10 is not satisfied, the process returns to step 9.

(Effects of the Invention) As explained above, according to the present invention, in the electronic document retrieval device, even if there is a document group that cannot be expressed by a combination of search clues, once the search is performed, the search can be performed efficiently. .

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing an embodiment of the electronic document retrieval device of the present invention, FIG. ) is a diagram showing a specific example of the search according to the present invention, and FIGS. Input means, 2... Search clue storage means, 3... Document storage means, 4... Search history storage means,
Figure 2 (a) (b) (C) Figure 3 (a) Figure 3 (b)

Claims (1)

[Claims] An apparatus for searching for digitized documents, comprising means for inputting digitized documents and search clues such as keywords, search clue storage means for storing the search clues, document storage means for storing the digitized documents, and search clues. a search history storage means for storing a correspondence relationship from a combination of combinations to a document; a display means for displaying a search interaction process and a search result; and a search clue storage means, a document storage means, and a search history storage means according to the input means. 1. A computerized document retrieval device, comprising: a control means for controlling the display means; and a control means for controlling the display means, and is capable of searching for related documents via a search clue and a search history.