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Search result correlation judgment-based search method and device

A correlation judgment and correlation technology, applied in the field of search engines, can solve problems such as waste of search engine computing resources, achieve the effect of reducing system overhead and speeding up response speed

Active Publication Date: 2011-10-05
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a retrieval method and device based on the correlation judgment of retrieval results, so as to solve the problem that in the prior art, the search engine searches the user's query words and all extended query words, thus causing the search engine to calculate waste of resources

Method used

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  • Search result correlation judgment-based search method and device
  • Search result correlation judgment-based search method and device

Examples

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Embodiment 1

[0037] Please also refer to figure 1 and figure 2 , figure 2 It is a schematic flowchart of Embodiment 1 of the retrieval method based on the judgment of the relevance of the retrieval results in the present invention. Such as figure 1 , figure 2 As shown, step 1011 corresponds to step 101. In step 1011, the user's original query is used to generate a query candidate sequence including more than one query candidate.

[0038] The user's original query refers to the query statement entered by the user. For example, the user enters "how to cook beef brisket with tomatoes to make it delicious", and this "how to cook beef brisket with tomatoes to make it delicious" is the user's original query.

[0039] Please refer to image 3 , image 3 It is a schematic flowchart of a method for generating query candidate sequences in an embodiment of the present invention. Such as image 3 As shown, in order to utilize the user's original query to generate query candidate sequences, st...

Embodiment 2

[0066] The difference between Embodiment 2 and Embodiment 1 is that the merging operation is performed before the correlation calculation, and then when the correlation is calculated, the merged retrieval result is used as the target retrieval result participating in the correlation calculation, which is performed as follows Be specific.

[0067] Please also refer to figure 1 and Figure 5 , Figure 5 It is a schematic flowchart of Embodiment 2 of the retrieval method based on the judgment of the relevance of retrieval results in the present invention. Such as figure 1 , Figure 5 As shown, step 101a corresponds to step 101. In step 101a, the user's original query is used to generate a query candidate sequence containing more than one query candidate, which is consistent with step 1011 in the first embodiment of the retrieval method, and will not be repeated here. restate.

[0068] Step 102a corresponds to step 102. In step 102a, an unretrieved query candidate in the query...

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Abstract

The invention provides a search result correlation judgment-based search method and device. The method comprises the following steps of: A, generating a query candidate sequence by using original query of a user; B, searching a query candidate which is not searched in the query candidate sequence to obtain a current search result; C, obtaining a target search result participating in correlation calculation by using the current search result, and calculating the correlation of the target search result and the original query; D, judging whether the target search result is enough correlated with the original query or the preset finish condition is met; and E, returning the search result corresponding to the searched query candidate and serving as a final search result to the user. By the mode, the system overhead of the search engine is saved, and the response speed of the search engine is quickened.

Description

【Technical field】 [0001] The invention relates to the field of search engines, in particular to a retrieval method and device based on correlation judgment of retrieval results. 【Background technique】 [0002] The current search engine usually has two methods when retrieving the user's query words. The first method is to search completely according to the user's query words. If the retrieval effect is not good, the user will modify the query words and search again. In this way, there may be defects that the retrieval effect is still not good, resulting in an unsatisfactory user experience, and also wasting computing resources of the search engine. In order to improve the above situation, some search engines adopt the query expansion strategy to expand the search terms entered by the user to obtain a wider range of search results, but in this way, the search engine will search for all users. The same calculation method is adopted for the query words, that is, all query words...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 石远
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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