Training method and device of sorting model

A ranking model and model technology, applied in the Internet field, can solve the problems of poor applicability of ranking scores, non-comparability of ranking scores, and inability to further apply ranking scores, so as to improve applicability and avoid large performance differences , the effect of improving reliability

Active Publication Date: 2016-12-21
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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Problems solved by technology

[0003] In the existing pairwise-based ranking algorithm, the ranking scores of pages corresponding to different search keywords are not comparable, so that the ranking scores of pages ca

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  • Training method and device of sorting model
  • Training method and device of sorting model

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that the terminals involved in the embodiments of the present invention may include, but are not limited to, mobile phones, personal digital assistants (Personal Digital Assistant, PDA), wireless handheld devices, tablet computers (Tablet Computer), personal computers (Personal Computer, PC ), MP3 players, MP4 players, we...

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Abstract

The invention provides a training method and device of a sorting model. Since the embodiment of the invention adopts a regulation factor which regulates the sorting score of a positive example sample page to tend to be greater than an appointed threshold value and regulates the sorting score of a negative example page to tend to be smaller than the appointed threshold value, the sorting scores of pages corresponding to different search keywords in a Pairwise-based sorting algorithm exhibit comparability, and therefore, the applicability of the sorting scores of the pages can be improved.

Description

【Technical field】 [0001] The invention relates to Internet technology, in particular to a training method and device for a sorting model. 【Background technique】 [0002] A search engine refers to a system that uses specific computer programs to collect information from the Internet according to a certain strategy, organizes and processes the information, provides users with search services, and displays the information related to the user's search to the user. According to the report of the National Bureau of Statistics, the number of Chinese netizens has exceeded 400 million. This data means that China has surpassed the United States to become the world's largest Internet country, and the total number of Chinese websites has exceeded 2 million. Therefore, how to use search services to satisfy users' needs to the greatest extent is always an important issue for Internet companies. [0003] In the existing pairwise-based ranking algorithm, the ranking scores of pages corresp...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06N3/08
CPCG06F16/9535G06N3/084
Inventor 刘毅
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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