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Method and device for training answer intention classification model based on search keywords

A classification model and keyword technology, applied in the field of search, can solve problems such as low accuracy and recall rate, sparse features, and general classification model effect, and achieve the effect of improving accuracy and recall rate.

Active Publication Date: 2017-05-17
BEIJING QIHOO TECH CO LTD
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Problems solved by technology

[0009] However, the search keywords are generally short text, the context information is scarce, and the features are sparse, resulting in the general effect of the classification model, and the accuracy and recall rates are relatively low. The accuracy rate is about 65%, and the recall rate is about 39%.

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  • Method and device for training answer intention classification model based on search keywords
  • Method and device for training answer intention classification model based on search keywords
  • Method and device for training answer intention classification model based on search keywords

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[0089] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although 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 for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0090] refer to figure 1 , shows a flow chart of steps of a method for training an answer intention classification model based on search keywords according to an embodiment of the present invention, which may specifically include the following steps:

[0091] Step 101, collecting click records of search result items generated when searching based on search keywords.

[0092] In a specific implementation, the user can access the se...

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Abstract

The embodiment of the invention provides a method and device for training an answer intention classification model based on search keywords. The method comprises the steps of collecting search result item clicking records generated during search of the search keywords; excavating question and answer attributes of the search keywords according to the search result item clicking records; adopting the search keywords to generate a training sample according to the question and answer attributes; marking classification labels for the training sample according to the question and answer attributes to generate a binary tree; and training the answer intention classification model according to the binary tree. By analyzing structures of the search keywords and marking the classification labels, a structural pattern of the query type search keywords and particularly implicit query type search keywords is learnt, so as to train the model and effectively improve accuracy rate and recall rate.

Description

technical field [0001] The present invention relates to the technical field of search, in particular to a method for training an answer intention classification model based on search keywords and a device for training an answer intention classification model based on search keywords. Background technique [0002] At present, there are many interactive question-and-answer platforms on the Internet. Users ask their own questions on the question-and-answer platform, and the question-and-answer platform mobilizes other users to answer and solve the questions of the questioners. [0003] The question-and-answer platform has accumulated a large number of users and generated a large amount of question-and-answer data (that is, questions and answers). Among them, the quality of the question-and-answer data varies. High-quality Q&A data is not only an important data resource for Q&A platforms, but also an important supplement for search engines. [0004] The search engine can analyz...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/35G06F16/90332G06F16/951
Inventor 庞伟
Owner BEIJING QIHOO TECH CO LTD
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