Export TPOT pipelines to Orange file format

[rhiever]

Orange has a pretty nice interface for building sklearn pipelines in a GUI.

It'd be great to have a function that exports TPOT pipelines into a file format that can be opened with Orange.

I've contacted the Orange devs and they said that it should be relatively straightforward to accomplish this as long as Orange has each TPOT pipeline operator already implemented as an Orange widget.

I'd imagine a good first step would be to thoroughly explore the Orange software and see what widgets/pipeline operators they already have implemented.

---

Here's an example Orange file:

<?xml version='1.0' encoding='utf-8'?>
<scheme description="" title="" version="2.0">
    <nodes>
        <node id="0" name="File" position="(150, 150)" project_name="Orange" qualified_name="Orange.widgets.data.owfile.OWFile" title="File" version="" />
        <node id="1" name="Data Info" position="(319.0, 77.0)" project_name="Orange" qualified_name="Orange.widgets.data.owdatainfo.OWDataInfo" title="Data Info" version="" />
        <node id="2" name="Test &amp; Score" position="(318.0, 209.0)" project_name="Orange" qualified_name="Orange.widgets.evaluate.owtestlearners.OWTestLearners" title="Test &amp; Score" version="" />
        <node id="3" name="Logistic Regression" position="(162.0, 324.0)" project_name="Orange" qualified_name="Orange.widgets.classify.owlogisticregression.OWLogisticRegression" title="Logistic Regression" version="" />
    </nodes>
    <links>
        <link enabled="true" id="0" sink_channel="Data" sink_node_id="1" source_channel="Data" source_node_id="0" />
        <link enabled="true" id="1" sink_channel="Data" sink_node_id="2" source_channel="Data" source_node_id="0" />
        <link enabled="true" id="2" sink_channel="Learner" sink_node_id="2" source_channel="Learner" source_node_id="3" />
    </links>
</scheme>

[brylie]

@rhiever really cool idea. See also #137, as the ideas are pretty closely related.

Is there a link to the discussion you had with the Orange devs? What pipeline operators have/haven't been implemented in Orange?

[brylie]

Is this closed as "won't fix"? Just curious.

[weixuanfu]

Yes, this is not in our dev plan.