[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-23 Thread Yanbo Liang (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14904298#comment-14904298
 ] 

Yanbo Liang commented on SPARK-10668:
-

[~mengxr] If [~lewuathe] is busy with other issues, I can take over this task.

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Assignee: Kai Sasaki
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-23 Thread Apache Spark (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14904390#comment-14904390
 ] 

Apache Spark commented on SPARK-10668:
--

User 'Lewuathe' has created a pull request for this issue:
https://github.com/apache/spark/pull/8884

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Assignee: Kai Sasaki
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-23 Thread Kai Sasaki (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14904395#comment-14904395
 ] 

Kai Sasaki commented on SPARK-10668:


So sorry for being late for submitting patch and thank you for supporting me.
[~mengxr] [~yanbo] Could you review current patch?

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Assignee: Kai Sasaki
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-22 Thread Xiangrui Meng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14903935#comment-14903935
 ] 

Xiangrui Meng commented on SPARK-10668:
---

[~lewuathe] any progress?

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Assignee: Kai Sasaki
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-21 Thread Xiangrui Meng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14900807#comment-14900807
 ] 

Xiangrui Meng commented on SPARK-10668:
---

[~lewuathe] This JIRA blocks several others. Could you try to submit a PR in 2 
days?

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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[jira] [Commented] (SPARK-10668) Use WeightedLeastSquares in LinearRegression with L2 regularization if the number of features is small

2015-09-18 Thread Kai Sasaki (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14876787#comment-14876787
 ] 

Kai Sasaki commented on SPARK-10668:


[~mengxr] Hello, can I work on this JIRA? Please assign it to me. Thank you.

> Use WeightedLeastSquares in LinearRegression with L2 regularization if the 
> number of features is small
> --
>
> Key: SPARK-10668
> URL: https://issues.apache.org/jira/browse/SPARK-10668
> Project: Spark
>  Issue Type: New Feature
>  Components: ML
>Reporter: Xiangrui Meng
>Priority: Critical
>
> If the number of features is small (<=4096) and the regularization is L2, we 
> should use WeightedLeastSquares to solve the problem rather than L-BFGS. The 
> former requires only one pass to the data.



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