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From "Matthias Boehm (JIRA)" <>
Subject [jira] [Closed] (SYSTEMML-1927) New transformcolmap builtin function
Date Tue, 16 Jan 2018 23:00:00 GMT


Matthias Boehm closed SYSTEMML-1927.
       Resolution: Done
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.0.0

> New transformcolmap builtin function
> ------------------------------------
>                 Key: SYSTEMML-1927
>                 URL:
>             Project: SystemML
>          Issue Type: Task
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>            Priority: Major
>             Fix For: SystemML 1.0.0
> Our decision tree script requires dummy coded inputs (in case of categorical attributes)
as well as a mapping matrix indicating which attributes where mapped to which dummy coded
features. This task aims to introduce a builtin function {{transformcolmap}} that allows to
directly compute this mapping matrix from the frame meta data, returned from {{transformencode}}.
> Once this builtin function is in place, we might want to simplify the decision tree script,
doing all this pre-processing internally instead of require the user to handle it.

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