METHODS AND DEVICES FOR CALCULATING RANKING SCORE AND CREATING MODEL, AND PRODUCT RECOMMENDATION SYSTEM

摘要

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. 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 (101); 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 (102); using said ranking score calculation model to calculate the ranking score of the object (103). In the present invention, 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.