dotnet / dotnet/machinelearning

unknown feature with suffix listed in calculated PFI results

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area-AutoML untriaged
Dominant language
C#
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Description

I'm using AutoML cli to do ML and use generated c# projects to calculate PFI. However, the PFI results look strange. There are many unkonwn features with strange suffix listed in the results.

![屏幕截图 2023-06-14 092429](https://github.com/dotnet/machinelearning/assets/3364218/2a367f95-b1b4-4c52-a79f-e8e2ab388eb2)

As the screenshot shows, there are many features like 'COMPONENT.Char.|j|0". But we just have "COMPONENT" feature.
How could I get a clean PFI list with only my raw features (no such suffix).

Or is this an intended behavior?

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