Optimize UncertaintyForest() notebooks and add Figure 2 tutorial

[EYezerets]

Reference issue

Contributes to addressing Issue 37: make 3 tutorials to run the experiments from uncertainty-forests

Type of change

Documentation and Bug Fix

What does this implement/fix?

This creates a new tutorial to run Figure 2 from this paper with a small dataset (similar to the tutorial created by @bstraus1 for Figure 1). The functions called by the Figure 2 tutorial are located in unc_forest_tutorials_functions.py so as not to clutter the notebook.
I also implemented a small bug fix to make sure predict_proba() in UncertaintyForest() can run by setting self.lf_ in the __init__() function.

Additional information

[PSSF23]

I don't think any output file should be uploaded? @EYezerets

[EYezerets]

@PSSF23 Oh good point, yes I can remove the pkl files, but I will leave an empty output folder if that's all right

[PSSF23]

@EYezerets I believe the best thing, if feasible, would be having everything contained in the notebook and leaving no output file at all. So instead of saving the outputs as pickle files and loading again, the program uses them directly to generate the figures.

That was a suggestion Will gave to me and Yuta when we simplified the benchmark tutorials (random_class_exp & label_shuffle_exp). @levinwil do you think the rule apply here as well?

[levinwil]

@EYezerets @PSSF23 Yes I agree with that suggestion!

[levinwil]

@EYezerets Any updates? This is the last PR before merging staging into master.

[EYezerets]

Hi @levinwil , just made a few edits today so it no longer outputs pkl files and still plots Figure 2 with the test parameters. Please kindly let me know if there's anything else needed before merging!

[PSSF23]

@EYezerets Please add your tutorial name to docs/tutorials.rst and remove the last blank cell in the fig2 notebook, thanks. And in the first markdown cells of all uncertainty forest tutorials, are you actually referring to this notebook: installation_guide.ipynb?

[PSSF23]

Actually, could you rewrite all the uncertaintyforest tutorials' introduction to have a consistent style? These three should be a set I believe?

[EYezerets]

@PSSF23 Yes I can do that! (Just to clarify, the first two tutorials were created by Ben, and once I make the one for Figure 3, there will be 4 uncertainty forest tutorials total. I will update the existing 3 tutorials to be as consistent as possible, and please let me know if you have additional feedback.)

[EYezerets]

@PSSF23 Could I please verify with you whether the way I wrote the figure 2 tutorial matches up better with the Netlify site requirements? That was my goal, and I was planning to modify the other two notebooks to be consistent with that.

[levinwil]

@EYezerets On the checks, go to any of the Netlify checks. Click on "details" on the right. Then navigate to your tutorial. You'll see how it renders.

[PSSF23]

@EYezerets Basically, what is going to show up on the Netlify website would be "#" formatted title and "##" formatted subtitles. I think what you have on fig2 tutorial should be mostly good. And you must add your tutorial name to docs/tutorials.rst for it to show up at all. Check out more at #356

[PSSF23]

I resolved the rst conflicts. Feel free to add more changes and let us know when you are done @EYezerets

[EYezerets]

Wait just a moment! I just ran the notebook so I have output for it again!

[EYezerets]

Thank you @PSSF23

[PSSF23]

@EYezerets I would prefer a version without the warnings but the website is looking good! And there is still a blank cell at the end of uncertaintyforest_running_example~

[EYezerets]

Ah hmm sorry about the warnings - it may be a side effect of running on AWS, but my computer is not unserializing parallel tasks if I run the tutorial locally.
I can take out the extra cell in that notebook right away - thanks for catching that!

[levinwil]

@PSSF23 This looks good to me. What do you think?

[PSSF23]

@levinwil I think it's good, too! Everything I know is addressed.

[EYezerets]

That's awesome! Thank you both! @PSSF23 @levinwil