Research of similarity in recommender system based on dependent function
WU Qi-zong · Computer Engineering and Applications Journal · 2011
The similarity measure in recommender system of electric commerce is studied.Based on the dependent function,the definition ofdistanceis introduced.Meanwhile,with the insurance of the similarity's nature and based on the theory of vague sets,a new similarity measure method is gotten.The method satisfies the need of similarity measure in recommender system,and the resultant is in line with people's perceptual.So the method not only offers a new idea to recommender system,but also introduces a wide range of theoretical foundation in this field.