党延忠

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:系统工程研究所

学科:管理科学与工程. 系统工程

电子邮箱:yzhdang@dlut.edu.cn

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Modified collaborative filtering algorithm based on multivariate meta-similarity

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论文类型:会议论文

发表时间:2013-08-10

收录刊物:EI、Scopus

卷号:8041 LNAI

页面范围:218-229

摘要:This paper further research the recommendation algorithm bases on the meta-similarity. We consider more information about users collect the items, and define the epidemic degree of the item(EDI) and user(EDU), modify the degree of overlapping of items, and analyze the effect of multivariate similarity in the recommendation system, then we present a modified collaborative filtering algorithm based on multivariate meta-similarity (MMSCF). The method reduces the influence of the EDI and EDU, limited the error to transfer, and enhances the similarity by multivariate meta-similarity. The experiments prove the new recommendation algorithm evaluated by the precision indexes of ranking score, precision and recall have achieved significantly improve. ? 2013 Springer-Verlag Berlin Heidelberg.