发明名称 |
COLLABORATIVE FILTERING WITH HASHING |
摘要 |
Systems, methods, and machine readable and executable instructions are provided for collaborative filtering. Collaborative filtering includes representing users and objects by rows and columns in a binary ratings matrix having a particular dimensional space. Unknown values in the binary ratings matrix are weighted with a weight matrix having the particular dimensional space. The binary ratings matrix and the weight matrix are hashed into a lower dimensional space by one of row and column. The hashed binary ratings matrix and the hashed weight matrix are low-rank approximated by alternating least squares. A result of the low-rank approximation for the one of row and column is updated using the binary ratings matrix and the weight matrix. A recommendation of one of the objects can be generated for one of the users based on the updated result. |
申请公布号 |
US2012096009(A1) |
申请公布日期 |
2012.04.19 |
申请号 |
US20100906551 |
申请日期 |
2010.10.18 |
申请人 |
SCHOLZ MARTIN B.;RAJARAM SHYAMSUNDAR;LUKOSE RAJANT |
发明人 |
SCHOLZ MARTIN B.;RAJARAM SHYAMSUNDAR;LUKOSE RAJANT |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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地址 |
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