Add EU law example to dashboard

[laurasootes]

This PR adds the example from the EU law text classification notebook to the dashboard. The example is only available for LIME (as in the notebook). In the dashboard, the user can select one of the 5 example sentences that are also in the notebook.

Following the notebook, I added the functions that are specific to this example to the models utils. Adding this example also required two additional imports for the dashboard installation
Additionally, I added “number of samples” as an adjustable LIME parameter in the dashboard, as it is required by

Two comments on this example:

• the example takes very long to run, due to the feature calculation. As far as I understand, it is required to use a large number of samples to get a meaningful result (2000), which simply takes long to calculate.
• The default sentence gives a significant visualisation. However, other example sentences I tried do not really give a result.

[elboyran]

@laurasootes, the dashboard tests are failing.
I will review your PR (a very quick job, great!) when it's all green, and we can merge it then right away.

[laurasootes]

@elboyran the dashboard tests pass again :)

[elboyran]

Unfortunately, I cannot make it run on my machine. I installed missing packages and still cannot find the trained model, despite me putting it there explicitly :-( I hope @cwmeijer will be able to review it.

[cwmeijer]

Perfect! Thanks!

[cwmeijer]

Unfortunately, I cannot make it run on my machine. I installed missing packages and still cannot find the trained model, despite me putting it there explicitly :-( I hope @cwmeijer will be able to review it.

It worked for me. I ran:

pip install -e .[dashboard,dev,text]
dianna-dashboard