发明名称 |
Predicting User-Item Ratings |
摘要 |
A method of predicting user-item ratings includes providing a first matrix of hidden variables associated with individual items, a second matrix of hidden variables associated with individual users, a third matrix of predicted user-item ratings derived from an inner product of vectors in the first and second matrices, and a fourth matrix of actual user-item ratings. The first and second matrices are alternately fixed and solved with a weighted-λ regularization of at least one of the first and second matrices by minimizing a sum of squared errors between actual user-item ratings in the fourth matrix and corresponding predicted user-item ratings in the third matrix repeatedly until a stopping criterion is satisfied.
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申请公布号 |
US2010100516(A1) |
申请公布日期 |
2010.04.22 |
申请号 |
US20080254303 |
申请日期 |
2008.10.20 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
ZHOU YUNHONG;SCHREIBER ROBERT S.;WILKINSON DENNIS M. |
分类号 |
G06N5/00 |
主分类号 |
G06N5/00 |
代理机构 |
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