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https://issues.apache.org/jira/browse/MADLIB-641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Frank McQuillan closed MADLIB-641.
----------------------------------
Resolution: Fixed
Resolved by writing new SVM for scratch for v1.9
Closing this JIRA.
> SVM Classification: MADlib has worse score than libsvm on data set splice
> -------------------------------------------------------------------------
>
> Key: MADLIB-641
> URL: https://issues.apache.org/jira/browse/MADLIB-641
> Project: Apache MADlib
> Issue Type: Bug
> Reporter: Jiali Yao
> Assignee: Rahul Iyer
> Labels: severity_set
> Fix For: v1.9
>
>
> {code}
> kernel Data Sets MADlib(Para = true) MADlib(Para = true) Libsvm
> Max(Madlib)/libsvm
> linea splice 0.526 0.556 0.848
> 0.656
> gaussina splice 0.520 0.480 0.904
> 0.575
> {code}
> Linear case
> {code}
> -- method: svm_cls_linear_ds_0_6_lsvm_classification_0
> SELECT madlib.lsvm_classification
> ( 'madlibtestdata.svm_splice'::text --input_table
> , 'madlibtestresult.cls_model_table'::text
> --model_table
> , 'true'::boolean --parallel
> , 'false'::boolean --verbose
> , '0.1'::float8 --eta
> , '0.001'::float8 --reg
> ) AS q;
> -- method: svm_cls_linear_ds_0_6_svm_cls_predict_batch_score_2
> SELECT madlibtestdata.svm_cls_predict_batch_score
> ( 'madlibtestresult.cls_model_table'::text
> --model_table
> , 'madlibtestresult.cls_output_table'::text
> --output_table
> , 'madlibtestdata.svm_splice_test'::text
> --input_table
> , 'true'::boolean --parallel
> , 'true'::boolean --linear
> ) AS score;
> -- method: svm_cls_linear_ds_0_6_svm_drop_model_3
> SELECT madlib.svm_drop_model
> ('madlibtestresult.cls_model_table'::text
> --model_table
> ) AS q;
> {code}
> Gaussian case
> {code}
> -- method: svm_cls_gaussian_ds_0_6_svm_classification_0
> SELECT madlib.svm_classification
> ( 'madlibtestdata.svm_splice'::text --input_table
> , 'madlibtestresult.cls_model_table'::text
> --model_table
> , 'true'::boolean --parallel
> , 'madlibtestdata.svm_gaussian_splice'::text
> --kernel_func
> , 'false'::boolean --verbose
> , '0.01'::float8 --eta
> , '0.005'::float8 --nu
> ) AS q;
> -- method: svm_cls_gaussian_ds_0_6_svm_cls_predict_batch_score_2
> SELECT madlibtestdata.svm_cls_predict_batch_score
> ( 'madlibtestresult.cls_model_table'::text
> --model_table
> , 'madlibtestresult.cls_output_table'::text
> --output_table
> , 'madlibtestdata.svm_splice_test'::text
> --input_table
> , 'false'::boolean --parallel
> , 'false'::boolean --linear
> ) AS score;
> {code}
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