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Method and system for generating search engine query expansion terms

A query expansion and search engine technology, applied in the field of generating search engine query expansion words, can solve problems such as no results, incomplete expressions, and few results, so as to improve accuracy and recall rate, and solve search queries with no results and few results Effect

Inactive Publication Date: 2017-10-24
DATAGRAND TECH INC
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Problems solved by technology

However, due to the mismatch between user query and document information, incomplete expression, etc., the results of traditional information retrieval are difficult to meet the user's query goals, and there may even be no results or few results.

Method used

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  • Method and system for generating search engine query expansion terms
  • Method and system for generating search engine query expansion terms
  • Method and system for generating search engine query expansion terms

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Embodiment Construction

[0039] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.

[0040] Such as figure 1 As shown, the present invention provides a method for generating search engine query expansion words, including the following steps:

[0041] S101. Obtain a network session log, extract query words of all network users to obtain a query word data training database;

[0042] Further, the S101 specifically includes the following steps:

[0043] S1011, divide the network session log according to the user ID to obtain multiple user logs;

[0044] Specifically, the cutting basis is a continuous query sent by the same user in a short period of time. The same user refers to the same userid, cookied, or mobile imei number identification, and the shorter time refers to the duration of the session, such as 10 minutes. The different sessions after p...

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Abstract

The invention discloses a method and a system for generating search engine query expansion terms. The method includes the following steps: acquiring network session log, and extracting query terms of all network users to obtain a query term corpus training library; training a term vector model with the aid of the query term corpus training library; receiving query text and inputting the query text to the trained term vector model to obtain expansion terms. Semantic expansion of the query terms is realized to further improve accuracy and increase recall rate of search engine query results, and the problems of no results and few results of search query are solved effectively.

Description

Technical field [0001] The present invention relates to the field of Internet technology, in particular to a method and system for generating search engine query expansion words. Background technique [0002] The goal of search engines is to match user queries with document information and return the most relevant results to users. In information retrieval technology, query expansion is a technology that can effectively improve query efficiency. Query word expansion technology expands the similar and related words to the user's query words to more accurately describe the user's information needs, remove the ambiguity of the user's query words, and more accurately query the users' needs information. However, due to the existence of phenomena such as mismatch between user query and document information and incomplete expression, the results of traditional information retrieval are difficult to achieve the user's query goal, and there may even be no results and few results. Summa...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/27
CPCG06F16/951G06F16/9535G06F40/284
Inventor 桂洪冠陈运文于敬纪达麒张健
Owner DATAGRAND TECH INC
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