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Posted to dev@mahout.apache.org by "Sebastian Schelter (JIRA)" <ji...@apache.org> on 2011/02/08 17:55:57 UTC
[jira] Created: (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Add an option to make RecommenderJob write out it's computed item similarities
------------------------------------------------------------------------------
Key: MAHOUT-609
URL: https://issues.apache.org/jira/browse/MAHOUT-609
Project: Mahout
Issue Type: Improvement
Components: Collaborative Filtering
Reporter: Sebastian Schelter
Assignee: Sean Owen
As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Assigned] (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Posted by "Raphael Cendrillon (Assigned) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Raphael Cendrillon reassigned MAHOUT-609:
-----------------------------------------
Assignee: Raphael Cendrillon
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Fix For: Backlog
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Updated] (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Posted by "Sean Owen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated MAHOUT-609:
-----------------------------
Affects Version/s: 0.5
Fix Version/s: 0.6
Assignee: Sebastian Schelter (was: Sean Owen)
I think this is a worthy change for next release
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 0.6
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Updated] (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Posted by "Bala Rajagopal (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bala Rajagopal updated MAHOUT-609:
----------------------------------
Attachment: MAHOUT-609.patch
Patch file contains changes to add an option to the RecommenderJob to write out the MostSimilarItems matrix.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Raphael Cendrillon (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13214873#comment-13214873 ]
Raphael Cendrillon commented on MAHOUT-609:
-------------------------------------------
Thanks Bala! Also, please feel free to assign this jira to yourself.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: Backlog
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Labels: patch
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Sebastian Schelter (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178467#comment-13178467 ]
Sebastian Schelter commented on MAHOUT-609:
-------------------------------------------
I'd be happy to see this done!
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Fix For: Backlog
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Bala Rajagopal (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215130#comment-13215130 ]
Bala Rajagopal commented on MAHOUT-609:
---------------------------------------
Can't find an "Assign to me" button. I guess I don't have the privileges to reassign tickets.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: Backlog
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Labels: patch
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Assigned] (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Posted by "Sean Owen (Assigned) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen reassigned MAHOUT-609:
--------------------------------
Assignee: Sean Owen (was: Sebastian Schelter)
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Sean Owen
> Fix For: 0.6
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Updated] (MAHOUT-609) Add an option to make RecommenderJob
write out it's computed item similarities
Posted by "Bala Rajagopal (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bala Rajagopal updated MAHOUT-609:
----------------------------------
Labels: patch (was: )
Affects Version/s: (was: 0.5)
Backlog
Status: Patch Available (was: Open)
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: Backlog
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Labels: patch
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Dan Brickley (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215193#comment-13215193 ]
Dan Brickley commented on MAHOUT-609:
-------------------------------------
Which of these does it work with?
TellyClub:trunk danbri$ grep RecommenderJob src/conf/*
src/conf/driver.classes.props:org.apache.mahout.cf.taste.hadoop.item.RecommenderJob = recommenditembased : Compute recommendations using item-based collaborative filtering
src/conf/driver.classes.props:org.apache.mahout.cf.taste.hadoop.als.RecommenderJob = recommendfactorized : Compute recommendations using the factorization of a rating matrix
looking at ...
patching file core/src/main/java/org/apache/mahout/cf/taste/hadoop/similarity/item/ItemSimilarityJob.java
patching file core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderJob.java
... is it safe to assume it affects only behaviour of 'recommenditembased' task, and not 'recommendfactorized'? Could it work with both easily?
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: Backlog
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Labels: patch
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Sebastian Schelter (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044020#comment-13044020 ]
Sebastian Schelter commented on MAHOUT-609:
-------------------------------------------
I lost track of this but I'll definitely implement it for 0.6
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 0.6
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Bala Rajagopal (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222569#comment-13222569 ]
Bala Rajagopal commented on MAHOUT-609:
---------------------------------------
Yes, the current patch works only for the recommendeditembased task. Looking at the ticket description, I assumed that the RecommenderJob in context is the org.apache.mahout.cf.taste.hadoop.item.RecommenderJob (recommendeditembased task) and not the als.RecommenderJob. We had a requirement that met the ticket description, hence we made the changes and submitted it as a patch. I would assume that a new ticket will be created (in the future) when there is a need to extend this functionality to the recommendfactorized task.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: Backlog
> Reporter: Sebastian Schelter
> Assignee: Raphael Cendrillon
> Labels: patch
> Fix For: Backlog
>
> Attachments: MAHOUT-609.patch
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Raphael Cendrillon (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178465#comment-13178465 ]
Raphael Cendrillon commented on MAHOUT-609:
-------------------------------------------
What's the status of this? I could take a look if it's still open.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Fix For: Backlog
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Sean Owen (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117238#comment-13117238 ]
Sean Owen commented on MAHOUT-609:
----------------------------------
Sebastian you want me to have a look? I'm combing through 0.6 issues to start to drive towards 0 for 0.6.
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 0.6
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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[jira] [Commented] (MAHOUT-609) Add an option to make
RecommenderJob write out it's computed item similarities
Posted by "Sebastian Schelter (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117241#comment-13117241 ]
Sebastian Schelter commented on MAHOUT-609:
-------------------------------------------
Take it if you want to :)
> Add an option to make RecommenderJob write out it's computed item similarities
> ------------------------------------------------------------------------------
>
> Key: MAHOUT-609
> URL: https://issues.apache.org/jira/browse/MAHOUT-609
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.5
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 0.6
>
>
> As RecommenderJob already includes the computation of similar items, we should an add option that makes it write out those similar items in the same format as ItemSimilarityJob does, so that users interested in both recommendations and similar items do not have to run two jobs.
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