[jira] Commented: (MAHOUT-135) Allow FileDataModel to transpose users and items
[ https://issues.apache.org/jira/browse/MAHOUT-135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722171#action_12722171 ] Grant Ingersoll commented on MAHOUT-135: See http://www.lucidimagination.com/search/document/4a2631a4adf77262/jira_commented_mahout_135_allow_filedatamodel_to_transpose_users_and_items If you have thousands of recommendations and you want to transpose them from the original, would you rather rewrite the file or just flip a switch on the FileDataModel? > Allow FileDataModel to transpose users and items > > > Key: MAHOUT-135 > URL: https://issues.apache.org/jira/browse/MAHOUT-135 > Project: Mahout > Issue Type: Improvement > Components: Collaborative Filtering >Reporter: Grant Ingersoll >Assignee: Sean Owen >Priority: Minor > Fix For: 0.2 > > Attachments: MAHOUT-135.patch > > > Sometimes it would be nice to flip around users and items in the > FileDataModel. This patch adds a transpose boolean that flips userId and > itemId in the processLine method. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAHOUT-135) Allow FileDataModel to transpose users and items
[ https://issues.apache.org/jira/browse/MAHOUT-135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722137#action_12722137 ] Otis Gospodnetic commented on MAHOUT-135: - Really, what is the use case for this? Wondering, since it's so easy to control the order of these 2-3 pieces of data. Thanks. > Allow FileDataModel to transpose users and items > > > Key: MAHOUT-135 > URL: https://issues.apache.org/jira/browse/MAHOUT-135 > Project: Mahout > Issue Type: Improvement > Components: Collaborative Filtering >Reporter: Grant Ingersoll >Assignee: Sean Owen >Priority: Minor > Fix For: 0.2 > > Attachments: MAHOUT-135.patch > > > Sometimes it would be nice to flip around users and items in the > FileDataModel. This patch adds a transpose boolean that flips userId and > itemId in the processLine method. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAHOUT-135) Allow FileDataModel to transpose users and items
[ https://issues.apache.org/jira/browse/MAHOUT-135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721738#action_12721738 ] Grant Ingersoll commented on MAHOUT-135: Go for it. > Allow FileDataModel to transpose users and items > > > Key: MAHOUT-135 > URL: https://issues.apache.org/jira/browse/MAHOUT-135 > Project: Mahout > Issue Type: Improvement > Components: Collaborative Filtering >Reporter: Grant Ingersoll >Assignee: Grant Ingersoll >Priority: Minor > Fix For: 0.2 > > Attachments: MAHOUT-135.patch > > > Sometimes it would be nice to flip around users and items in the > FileDataModel. This patch adds a transpose boolean that flips userId and > itemId in the processLine method. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
Re: [jira] Commented: (MAHOUT-135) Allow FileDataModel to transpose users and items
Transposing is actually a common need as you abstract away from users and ratings. On Thu, Jun 18, 2009 at 10:19 PM, Sean Owen (JIRA) wrote: > Looks OK to me -- I applied the patch locally and tweaked a few things. > Seems like a rare use case but simple to implement anyway. Mind if I submit > over here? > > > Allow FileDataModel to transpose users and items > >
[jira] Commented: (MAHOUT-135) Allow FileDataModel to transpose users and items
[ https://issues.apache.org/jira/browse/MAHOUT-135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721653#action_12721653 ] Sean Owen commented on MAHOUT-135: -- Looks OK to me -- I applied the patch locally and tweaked a few things. Seems like a rare use case but simple to implement anyway. Mind if I submit over here? > Allow FileDataModel to transpose users and items > > > Key: MAHOUT-135 > URL: https://issues.apache.org/jira/browse/MAHOUT-135 > Project: Mahout > Issue Type: Improvement > Components: Collaborative Filtering >Reporter: Grant Ingersoll >Assignee: Grant Ingersoll >Priority: Minor > Fix For: 0.2 > > Attachments: MAHOUT-135.patch > > > Sometimes it would be nice to flip around users and items in the > FileDataModel. This patch adds a transpose boolean that flips userId and > itemId in the processLine method. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
