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Method, device and product recommendation system for calculating ranking score and building model

A technology for calculating models and sorting factors, applied in the field of sorting, which can solve problems such as inability to easily introduce sorting factors and inaccurate calculation results of sorting points.

Active Publication Date: 2018-10-16
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] This application provides a method and device for calculating the ranking score of the object to be evaluated, so as to solve the problem that the existing technology cannot easily introduce new ranking factors and rely solely on expert experience to set weight coefficients, resulting in inaccurate ranking score calculation results

Method used

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  • Method, device and product recommendation system for calculating ranking score and building model
  • Method, device and product recommendation system for calculating ranking score and building model
  • Method, device and product recommendation system for calculating ranking score and building model

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Embodiment Construction

[0103] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0104] In the present application, a method and a device for calculating a ranking score of an object to be evaluated, and a method and a device for establishing a ranking score calculation model are respectively provided. Each will be described in detail in the following examples.

[0105] Please refer to figure 1 , which is a flow chart of an embodiment of a method for calculating the ranking score of an object to be evaluated in this application. The method comprises the steps of:

[0106] Step 101: Obtain the ...

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Abstract

A method and device for calculating a ranking score of an object to be evaluated, a method and device for creating a ranking score calculation model, and a product recommendation system are disclosed in the present application. The method for calculating a ranking score of an object to be evaluated comprises: obtaining for an object to be evaluated initial evaluation score data and additional ranking factor values, as well as actual behavior data extracted from past behavior data in an actual interaction behavior system; minimizing to an optimal target the difference between the actual ranking distribution obtained on the basis of actual behavior data and the predicted ranking distribution obtained on the basis of a pre-set ranking score calculation model, and solving for the weight coefficients of additional ranking factors in the ranking score calculation model; using said ranking score calculation model to calculate the ranking score of the object. In the methods provided in the present application, additional ranking factors may be quickly and conveniently factored into calculations, and ranking scores resulting from said calculations can objectively and accurately predict the ranking of an object.

Description

technical field [0001] The present application relates to ranking technology, in particular to a method for calculating the ranking score of an object to be evaluated. The present application also provides a device for calculating the ranking score of the object to be evaluated, a method and device for establishing a ranking score calculation model, and a commodity recommendation system. Background technique [0002] With the popularization of the Internet and the development of website technology, more and more users choose to browse, select, or purchase the commodities they need online. In this case, many websites use various forms of recommendation technology to recommend products to users to varying degrees. The more common method is to select a specific sorting factor and calculate the ranking of the recommended products according to a preset sorting algorithm. Score, and then select and recommend products according to the ranking score. [0003] The sorting factor us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06Q30/02
CPCG06F16/00
Inventor 刘睿吕韬孙超杨志雄
Owner ALIBABA GRP HLDG LTD
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