[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-12-06 Thread Paulo Villegas (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13163539#comment-13163539 ] Paulo Villegas commented on MAHOUT-898: --- I sent the 'trivial' patch (taking absolute

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-28 Thread Paulo Villegas (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158668#comment-13158668 ] Paulo Villegas commented on MAHOUT-898: --- |When you do test with log-likelihood, make

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-28 Thread Sean Owen (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158657#comment-13158657 ] Sean Owen commented on MAHOUT-898: -- Yes I could imagine this improves metrics in some cas

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-28 Thread Ted Dunning (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158654#comment-13158654 ] Ted Dunning commented on MAHOUT-898: {quote} Incidentally, we also tried loglikelihood

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-28 Thread Paulo Villegas (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158645#comment-13158645 ] Paulo Villegas commented on MAHOUT-898: --- Hi, thanks for the long reply! I did test

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-27 Thread Sean Owen (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158101#comment-13158101 ] Sean Owen commented on MAHOUT-898: -- (Pearson is often mentioned in early literature but i

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-27 Thread Paulo Villegas (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158051#comment-13158051 ] Paulo Villegas commented on MAHOUT-898: --- I think that your example is actually desir

[jira] [Commented] (MAHOUT-898) Error in formula for preference estimation in GenericItemBasedRecommender

2011-11-27 Thread Sean Owen (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/MAHOUT-898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158028#comment-13158028 ] Sean Owen commented on MAHOUT-898: -- I understand the issue, but this doesn't fix it. Say