Search device, searching method, search program and recording medium
A retrieval program, a technology of one party, applied to other database retrieval, digital data information retrieval, file management system, etc., can solve problems such as inability to obtain user retrieval results
Inactive Publication Date: 2014-08-27
RAKUTEN INC
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Problems solved by technology
Therefore, when the user specifies multiple keywords, it may not be possible to obtain a sufficient number of search results that the user expects
Method used
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no. 2 Embodiment approach
[0144] The second embodiment described below is an embodiment when the present invention is applied to an information providing system for purchasing products.
[0145] [2-1. Outline of structure and function of information providing system]
[0146] First, use Figure 9 The structure of the information providing system S2 of this embodiment is demonstrated. Figure 9 It is a figure which shows an example of the schematic structure of the information providing system S2 of this embodiment. exist Figure 9 in, right with figure 1 The same features are labeled with the same symbols.
[0147] Such as Figure 9 As shown, the information providing system S2 is configured to include an electronic shopping mall server 4 , a plurality of store terminals 5 , and a plurality of user terminals 6 . Furthermore, the electronic mall server 4 , each store terminal 5 , and each user terminal 6 can mutually transmit and receive data via the network NW.
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A user is enabled to obtain search results desired by the user without changing a search condition even when a sufficient number of search objects do not exist which match all of a plurality of keywords specified as a search condition. A search apparatus divides a plurality of keywords specified as a search condition into two child search conditions, each of which includes at least one keyword. The search apparatus searches for a search object that matches all the keywords specified as the search condition. The search apparatus searches for search objects that match all the keywords included in one of the child search conditions and search objects that match all the keywords included in the other of the child search conditions. The search apparatus extracts combinations of search objects having predetermined relationship to each other from among combinations of any one of search objects found by the one of the child search conditions and any one of search objects found by the other of the child search conditions.
Description
technical field [0001] The present invention relates to the technical field of a search device and a search method that perform a search based on a plurality of keywords specified as search conditions. Background technique [0002] In addition, there is known a search device that performs a search based on a keyword designated by a user. Examples of search objects include products, services, web pages, and other information. When the user specifies a plurality of keywords, the search device generally searches for search objects that match all of the specified keywords. Therefore, when a plurality of keywords are specified, the number of retrieved search objects tends to decrease compared to when only one keyword is specified. Therefore, when the user designates a plurality of keywords, it may not be possible to obtain a sufficient number of search results desired by the user. [0003] In connection with this point, there is known a technique of performing a search by excl...
Claims
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IPC IPC(8): G06F17/30
CPCG06F17/30657G06F16/3331G06F16/245G06F16/93G06F16/13
Inventor 吉冈匠
Owner RAKUTEN INC