Construction method and device of query rewriting model and application thereof

A query rewriting and model technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as unsatisfactory search results

Pending Publication Date: 2020-03-24
BEIJING QIHOO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But obviously, the search results obtained in this way are not satisfactory, and if the search terms are replaced according to semantics, such as "iPhone X price", the search results are relatively more in line with user needs

Method used

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  • Construction method and device of query rewriting model and application thereof
  • Construction method and device of query rewriting model and application thereof
  • Construction method and device of query rewriting model and application thereof

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Embodiment Construction

[0098] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0099] figure 2 A schematic flowchart of a method for constructing a query rewriting model according to an embodiment of the present invention is shown. like figure 2 As shown, the method includes:

[0100] Step S210, generating training data according to the search click data.

[0101] Here, the search click data in the commercial search engine can be used as the data source, and the search records of high-quality use...

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Abstract

The invention discloses a construction method and device for a query rewriting model and application thereof. The method comprises the steps of generating training data according to search click data;training a target model according to the training data to obtain an intermediate model, wherein the target model comprises an encoder and a decoder, and the decoder comprises an extraction mode and ageneration mode; and judging whether the intermediate model meets a preset condition, if so, taking the intermediate model as a query rewriting model and stopping training, and otherwise, taking theintermediate model as a target model for iterative training. According to the technical scheme, the training process is reasonably set through big data learning, and the extraction mode and the generation mode are combined, so that the query rewriting model obtained through training can more accurately rewrite the search query statement, and the result returned through search is further close to the actual demand of the user.

Description

technical field [0001] The invention relates to the field of natural language processing, in particular to a construction method, device and application of a query rewriting model. Background technique [0002] In general, search engines are more suitable for entering queries composed of precise keywords, and queries described by natural language will lead to poorer returned results. E.g, figure 1 A schematic diagram showing query results corresponding to different query statements, such as figure 1 As shown in , users may enter natural language such as "I want to know how much an iPhone X costs" when searching, especially in the context of language search. But obviously, the search results obtained in this way are not satisfactory, and if the search terms are replaced according to semantics, such as "iPhone X price", the search results are relatively more in line with user needs. Therefore, there is a need for a method capable of rewriting the search query sentence input...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2453G06F16/242
Inventor 王浩庞旭林张晨
Owner BEIJING QIHOO TECH CO LTD
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