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A method and device for searching and sorting based on click model

A sorting method and sorting device technology, applied in the field of search engines

Active Publication Date: 2019-02-19
CHEZHI HULIAN BEIJING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the participation in ranking by click weight adjustment often leads to the problem of "positive feedback", that is, the results ranked first by click weight adjustment tend to get higher clicks, so it is easier to be ranked first

Method used

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  • A method and device for searching and sorting based on click model
  • A method and device for searching and sorting based on click model
  • A method and device for searching and sorting based on click model

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Embodiment Construction

[0026] 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.

[0027] figure 1 An exemplary environment 100 is shown in which a search engine may operate. Environment 100 includes one or more clients 110 and one or more servers 120 (typically "hosts") connected to each other by a network 130, such as the Internet, a wide area network (WAN) or a local area network (LAN). Network 130 provides access to services such as World Wide Web (“web”) 131 .

[0028] Web 131 allows client 110 to access d...

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Abstract

The invention discloses a click model-based searching and ranking method. The method comprises the following steps: obtaining a first result sequence in regard to query, wherein each result item in the first result sequence has a first score, all the result items are ranked from high to low according to the first score, and the first score is calculated according to at least one predetermined characteristic; determining the second score of each result item in the first result sequence by utilizing a click model; and selecting the result items with the second score not equal to 0 in the first result sequence, and adjusting the sequence of the selected result items on the basis of the second scores so as to obtain a second result sequence. The invention furthermore discloses a click model-based searching and ranking device.

Description

technical field [0001] The invention relates to a search engine, in particular to a search sorting method and device based on a click model. Background technique [0002] The role of the Internet on the economy and society is expanding from reducing information asymmetry to driving big data to generate value. In this process, search has always been an important means for people to obtain information and data from the Internet, so it has become an important entrance to the Internet. Improving the retrieval relevance of search engines is an important research direction in the field of information retrieval. Click models in the field of information retrieval have made great strides in recent years. The so-called click model is a mathematical model that uses the click data of users when using search engines to calculate the correlation between search results and user queries. It gives the search system the ability to use information from previous user clicks when ranking resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/9535
CPCG06F16/9535
Inventor 姜国华
Owner CHEZHI HULIAN BEIJING SCI & TECH CO LTD