DKN improve

[miguelgfierro]

Description

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 #1722 (f42c71a) into staging (5d8ca7d) will increase coverage by 23.20%.
The diff coverage is n/a.

❗ Current head f42c71a differs from pull request most recent head 5cbeeff. Consider uploading reports for the commit 5cbeeff to get more accurate results

@@             Coverage Diff              @@
##           staging    #1722       +/-   ##
============================================
+ Coverage     0.00%   23.20%   +23.20%     
============================================
  Files           88       88               
  Lines         9142     9142               
============================================
+ Hits             0     2121     +2121     
- Misses           0     7021     +7021     

Flag	Coverage Δ
nightly	?
pr-gate	23.20% <ø> (?)

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Impacted Files	Coverage Δ
recommenders/datasets/mind.py	0.00% <0.00%> (ø)
recommenders/datasets/criteo.py	56.60% <0.00%> (+56.60%)	⬆️
recommenders/utils/spark_utils.py	84.61% <0.00%> (+84.61%)	⬆️
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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