GitHub user mktal opened a pull request:
https://github.com/apache/incubator-madlib/pull/4
SVM: Add cross validation support and generic CrossValidator class
JIRA: MADLIB-915
Authors:
Xiaocheng Tang <[email protected]>
Rahul Iyer <[email protected]>
Changes:
- Add cross validation support on lambda, epsilon, init_stepsize, max_iter,
and decay_factor
- Add support for optionally writing validation results to a sql table
- Add support for lazy-generation of cv datasets
- Add internal generic CrossValidator class which is used for implementing
this issue
- Refactoring SVM for better modularity
- Ignore cv on epsilon when it is classification
- Cross validation now works when independent variables are queries
- Fixed "zero length field name in format" error in python < 2.7
- Fix error messages so that it pass the svm input tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mktal/incubator-madlib
feature/svm_cross_validation
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-madlib/pull/4.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4
----
commit dc1aeb930ead2a6b8bad58f95df6c5fdd0f856d4
Author: Xiaocheng Tang <[email protected]>
Date: 2015-10-29T21:28:52Z
SVM: Add cross validation support and generic CrossValidator class
JIRA: MADLIB-915
Authors:
Xiaocheng Tang <[email protected]>
Rahul Iyer <[email protected]>
Changes:
- Add cross validation support on lambda, epsilon, init_stepsize, max_iter,
and decay_factor
- Add support for optionally writing validation results to a sql table
- Add support for lazy-generation of cv datasets
- Add internal generic CrossValidator class which is used for implementing
this issue
- Refactoring SVM for better modularity
- Ignore cv on epsilon when it is classification
- Cross validation now works when independent variables are queries
- Fixed "zero length field name in format" error in python < 2.7
- Fix error messages so that it pass the svm input tests
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