Review BPR

[miguelgfierro]

Description

Better explanation of BPR, in particular the pairwise ranking

Related Issues

Checklist:

• I have followed the contribution guidelines and code style for this project.
• I have added tests covering my contributions.
• I have updated the documentation accordingly.
• This PR is being made to staging branch and not to main branch.

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Codecov Report

Merging #1704 (0be0b3e) into staging (4106333) will increase coverage by 23.32%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           staging    #1704       +/-   ##
============================================
+ Coverage     0.00%   23.32%   +23.32%     
============================================
  Files           87       87               
  Lines         9132     9132               
============================================
+ Hits             0     2130     +2130     
- Misses           0     7002     +7002     

Flag	Coverage Δ
nightly	?
pr-gate	23.32% <ø> (?)

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Impacted Files	Coverage Δ
recommenders/datasets/mind.py	0.00% <0.00%> (ø)
recommenders/datasets/movielens.py	66.37% <0.00%> (+66.37%)	⬆️
recommenders/datasets/download_utils.py	90.00% <0.00%> (+90.00%)	⬆️
recommenders/models/newsrec/io/mind_iterator.py	0.00% <0.00%> (ø)
recommenders/models/newsrec/models/base_model.py	0.00% <0.00%> (ø)

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[miguelgfierro]

FYI @fazamani

[anargyri]

See comment.

[miguelgfierro]

@anargyri could you please review this again?