Fix ZeroDivisionError on BPR by adding an epsilon #677
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Description
I've added the small epsilon value (1e-8) in the
(100.0 * correct / (len(user_ids) - skipped)calculation to avoid zero division error when fitting the model. This change is applied to both BPR and WBPR.Related Issues
#675
Checklist:
README.md(if you are adding a new model).examples/README.md(if you are adding a new example).datasets/README.md(if you are adding a new dataset).