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Posted to issues@madlib.apache.org by "Frank McQuillan (JIRA)" <ji...@apache.org> on 2016/03/09 01:34:40 UTC
[jira] [Closed] (MADLIB-642) SVM Classfication Performance:
Classification with Kernel function can improve performance on below
datasets
[ https://issues.apache.org/jira/browse/MADLIB-642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Frank McQuillan closed MADLIB-642.
----------------------------------
Resolution: Fixed
Resolved by writing new SVM for scratch for v1.9
Closing this JIRA.
> SVM Classfication Performance: Classification with Kernel function can improve performance on below datasets
> ------------------------------------------------------------------------------------------------------------
>
> Key: MADLIB-642
> URL: https://issues.apache.org/jira/browse/MADLIB-642
> Project: Apache MADlib
> Issue Type: Bug
> Reporter: Jiali Yao
> Assignee: Rahul Iyer
> Fix For: v1.9
>
>
> Below data sets can not return result in several hours. It also can not return result in libsvm with similar parameter.
> Data sets name TrainSize TestSize Attributes Rate(1:-1) Missing Source URL
> rcv1.binary 20242 677399 47236 365951:331690 N http://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/binary.html#rcv1.binary
> URL Reputation Data Set 19000 3231961 6638:12362 N http://archive.ics.uci.edu/ml/machine-learning-databases/url/url.names
> Test case
> {code}
> -- method: svm_cls_linear_ds_0_7_lsvm_classification_0
> SELECT madlib.lsvm_classification
> ( 'madlibtestdata.svm_url'::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_dot_ds_0_1_svm_classification_0
> SELECT madlib.svm_classification
> ( 'madlibtestdata.svm_rcv1_binary'::text --input_table
> , 'madlibtestresult.cls_model_table'::text --model_table
> , 'true'::boolean --parallel
> , 'madlib.svm_dot'::text --kernel_func
> , 'false'::boolean --verbose
> , '0.01'::float8 --eta
> , '0.005'::float8 --nu
> ) AS q;
> {code}
> {code}
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