Binary Classification Inspector error

[alfroc]

Hi,
After installing Knime Machine Learning Interpretability Extension I get an error message executing the Binary Classification Inspector (see below).
Maybe I’ve missing some other extensions?
Best,
Alfredo

[blaney]

Hello @alfroc,

Thanks for sharing your post! Sorry to hear you are having trouble with the ML Interpretability Extension. From the screenshot you attached, I believe the node is experiencing an issue with the Browser being used to create the visualizations.

Is it possible for you to change your browser settings in KNIME to use the Bundled Chromium Browser instead of Internal SWT Browser? Depending on the permissions on your system, that may be an issue, but it’s always recommended to use this option if possible. Changing these settings under Preferences -> KNIME -> JavaScript Views should solve the problem (see the image below).

Also, I would love to look into this more. Is there any way you could attach the workflow you are using when this error occurs so I try to reproduce it locally?

Thanks again for your post!

Best,
Ben

[alfroc]

Hi Ben,
thank you very much, it works!
Here is the workflow Example.knwf (61.7 KB)
Best,
Alfredo

PS will it be possible for the confusion matrix changing the sorting strategy as in the other Scorer nodes?

[blaney]

Great!

I’m glad that fixed the problem. As I mentioned before, this setting will help ensure more consistent behavior with all of our JavaScript based views in the platform, so I recommend using it as your default unless otherwise needed .

As for as the sorting strategy of the confusion matrix; this is not something that is currently configurable. The node will use the class chosen in the Positive Class Value option of the dialog as the basis for ordering.

Best,
Ben