Method and device for sorting search results

A technology of search results and objects, applied in the field of computer network information, can solve problems such as low accuracy, omission of important information, and the estimation accuracy needs to be improved, so as to achieve improved efficiency, convenient use, accurate and reasonable click rate estimation. Effect

Active Publication Date: 2015-03-18
ALIBABA GRP HLDG LTD
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Problems solved by technology

Although the method of sorting search results based on the click-through rate estimated by this model reduces some unnecessary waste of resources, its accuracy is not high and sometimes relevant important information is missed
[0004] For example, in the above methods, only the text features and relevance features of the objects that the user has clicked are paid attention to, without considering other important features of the objects themselves that also play a key role in the user's click behavior, such as visual perception of pictures and labels. Information that is difficult to be characterized, so it cannot accurately reflect the user's click behavior, that is, the prediction accuracy needs to be improved
In addition, because we on

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  • Method and device for sorting search results
  • Method and device for sorting search results
  • Method and device for sorting search results

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Embodiment Construction

[0023] The main idea of ​​this application is to obtain the final estimated click rate of the object through nonlinear fitting of the three parameters of the object's historical click rate, exposure number and preliminary estimated click rate, which can comprehensively represent the user's click Behavior, to achieve more accurate click-through rate estimation, and thus to achieve more accurate ranking of search results. In addition, when estimating the click rate of an object, historical data information can be more reasonably used based on the exposure number information of the historical data, so as to improve the efficiency of estimating the click rate. In particular, reasonable CTR estimates are also provided for objects with low or zero exposures, so that for each object corresponding to the current query, no matter whether it is an object with a high exposure rate or a low exposure rate Objects can get a more reasonable click-through rate estimate, so that more accurate ...

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Abstract

The invention provides a method and a device for sorting search results. The method includes: when receiving a search request including a current search term, acquiring historical click rate and impression of objects included in the search results corresponding to the current search term according to historical statistical data; acquiring preliminary estimated click rate of the objects according to the current search term and features of the corresponding objects; acquiring final estimated click rate of the objects by nonlinear fitting according to the historical click rate, the impression and the preliminary estimated click rate; sorting the objects according to the final estimated click rate. By the method and device, accurate click rate estimation is achieved effectively, further more accurate search result sorting is realized, and user requirements are met while user friendliness is realized.

Description

technical field [0001] The present application relates to the field of computer network information, in particular to a method and device for sorting search results. Background technique [0002] With the rapid development of Internet services, various information interactions through the Internet have become the most widely used today. However, when multiple services interact with applications at the same time, interactive application congestion will occur. For example, when a user wants to search for a certain product, many product lists will appear at the same time, but not all of the products presented to the user are what the user needs, and many of them are even irrelevant to the search content. The ordering of the results is not rationalized or precise enough. Therefore, it not only brings a lot of inconvenience to user applications, but also brings a waste of network resources. This also reflects the importance of reasonable and precise sorting. [0003] The meth...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/951
Inventor 霍承富郑伟朱江涛林锋
Owner ALIBABA GRP HLDG LTD
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