公开(公告)号：AU2008362223A1

公开(公告)日：2010-04-01

申请号：AU2008362223

申请日：2008-09-29

Applicant: ERICSSON TELEFON AB L M

Inventor： LIDSTRÖM MATTIAS ,  BJÖRK JONAS ,  SÖDERBERG JOAKIM ,  HOLMBERG MARTIN

IPC: G06F17/30

公开(公告)号：CA2738421A1

公开(公告)日：2010-04-01

申请号：CA2738421

申请日：2008-09-29

Applicant: ERICSSON TELEFON AB L M

Inventor： LIDSTRÖM MATTIAS ,  BJÖRK JONAS ,  SÖDERBERG JOAKIM ,  HOLMBERG MARTIN

IPC: G06F17/30

Abstract: 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.