[jira] [Assigned] (MADLIB-1300) Clarify dep and indep var column names in output table for deep learning minibatch preprocessor

["Frank McQuillan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MADLIB-1300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Frank McQuillan reassigned MADLIB-1300:
---------------------------------------

    Assignee: Himanshu Pandey

> Clarify dep and indep var column names in output table for deep learning minibatch preprocessor
> -----------------------------------------------------------------------------------------------
>
>                 Key: MADLIB-1300
>                 URL: https://issues.apache.org/jira/browse/MADLIB-1300
>             Project: Apache MADlib
>          Issue Type: Improvement
>          Components: Module: Utilities
>            Reporter: Frank McQuillan
>            Assignee: Himanshu Pandey
>            Priority: Major
>             Fix For: v1.16
>
>
> Follow on to this commit:
> Minibatch Preprocessor for Deep learning
> https://github.com/apache/madlib/commit/8de32ede33c48d2f4a440f0f639c94a277a359c1
> The output table produced by the deep mini-batch preprocessor contains the following columns:
> {code}
> ...
> dependent_varname	FLOAT8[]. Packed array of dependent variables. If the dependent variable in the source table is categorical, the preprocessor will one-hot encode it.
> independent_varname	FLOAT8[]. Packed array of independent variables.
> ...
> {code}
> This is misleading because these columns contain values not names, so we should rename these columns to:
> {code}
> ...
> dependent_var
> independent_var
> ...
> {code}
> The output summary table contains the following columns: 
> {code}
> dependent_varname	Dependent variable from the source table.
> independent_varname	Independent variable from the source table.
> {code}
> This is OK since the columns actually do contain names.
> There is a related 2.0 story for the regular mini-batch preprocessor 
> http://madlib.apache.org/docs/latest/group__grp__minibatch__preprocessing.html
> in JIRA https://issues.apache.org/jira/browse/MADLIB-1294



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)