783 simplify overview tutorial

[elboyran]

Make the overview tutorial better.

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[elboyran]

The ONNX model for the binary MNIST used in the tutorial is not the one from Zenodo! Some TF variant that is not on Zenodo is used, Using the one in Zenodo gives an error. So, the notebook still depends on local models and some other locally stored data.

[SarahAlidoost]

@elboyran thanks, looks very good 👍 I was able to run the notebook. One minor comment: is there a reason why we don't plot the results of kernelshap, the last method in the notebook?

[elboyran]

@elboyran thanks, looks very good 👍 I was able to run the notebook. One minor comment: is there a reason why we don't plot the results of kernelshap, the last method in the notebook?

@SarahAlidoost thanks for reviewing! If you recall during the last stand-up (or maybe you were not there?) there was the opinion that I should skip the whole Explainers section as it was redundant. Still, I opted for keeping it and gradually "simplifying" it, which includes firstly elaborating on LIME (corresponding to a missing LIME for Binary MNIST tutorial), then less for the second explainer, and finally not showing the last visualization. The point of the section for me is:

• Stress again we support a few explainers
• Show it's as easy as specifying the method's name (and some hyperparameters). How to visualize should have been clear from all examples above.
• Finish the overview by triggering the interest and "advertising" all tutorials for many combinations of modalities-methods and pointing to the dashboard (where the methods' comparison) is the most obvious advantage.

I hope this PR achieves that.