发明名称 |
DOUBLE WEIGHTED CORRELATION SCHEME |
摘要 |
A method is provided for determining a correlation between a reference user and another user on the basis of two sets of ratings, where each rating is associated with a respective user. In response to a trigger,user ratings associated with the reference user and user ratings associated with the other user are collected, and all co- rated items of these two sets are correlated in the basis of an adjusted cosine correlation function which is weighted by a first and a second weighting function. The correlation is then stored and may be repeated for a plurality of users. The stored correlations may be used e.g. for ranking purposes. |
申请公布号 |
CA2738421(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
CA20082738421 |
申请日期 |
2008.09.29 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
LIDSTROM, MATTIAS;BJORK, JONAS;SODERBERG, JOAKIM;HOLMBERG, MARTIN |
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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主权项 |
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地址 |
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