Retrieval device and retrieval method

Abstract

The invention provides an indexing unit. The indexing unit comprises a judging part for judging whether the indexing part contains multiple unused individual indexing parts in allusion to the indexing object; an index instruction number calculating part for, under the situation that the judging part judges that the indexing part contains multiple unused individual indexing parts, determining to actually select the index instruction of one or more indexing objects by using each unused individual indexing part to index, and respectively calculating the indexing instruction numbers determined by each individual indexing part by using the determined index instruction; an index selecting part for comparing the index instruction numbers of each individual indexing part calculated by the index instruction numbers, and selecting the stated individual indexing part; and an output part for outputting the individual indexing part selected by the index selecting part. According to the indexing unit, even the user does not know the complete condition of the indexing object, the user can index the desirable object easily about the indexing object through the indexing module which can effectively simplifying candidate result in multiple indexing modules.

Description

technical field [0001] The present invention relates to a retrieval device and a retrieval method for retrieving desired objects from a database, in particular to a retrieval method for a retrieval device with multiple retrieval modules. Background technique [0002] Nowadays, electronic devices equipped with a search function for quickly finding a desired object among a plurality of objects are common. [0003] A general search function is to extract a search object corresponding to the search command through a predetermined search module based on a search command input by the user for the search target stored in the database, and display it as a candidate. For example, when retrieving the phone numbers stored in the phone book, according to the name input by the user, the name search module extracts the phone numbers with the same name stored in the phone book and displays them as candidates. Alternatively, in navigation, when searching for facilities stored in the facili...

AI Technical Summary

Problems solved by technology

Conversely, when simplifying by specifying the location, since the location of the facility called "Xinghai" is roughly the same, the candidate results cannot be effectively reduced, and there are still many

That is, when there are multiple search modules, if the user does not know the overall situation of the search object, the selected search module may not be able to narrow down the candidate results effectively for the search object.

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