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[BUG] `exclude_unknowns=False` makes evaluation fail
See original GitHub issueHello guys, great work, way better than Microsoft! I have a small issue, please read below:
Description
If I set exclude_unknowns=False then all the ratings/rankings fail with a similar error:
e.g. IndexError('index 1840 is out of bounds for axis 0 with size 1840')
In which platform does it happen?
Linux 5.11.0-36-generic
How do we replicate the issue?
This is easy, just make sure to have non-zeros for:
Number of unknown users = 5
Number of unknown items = 4
after when doing RatioSplit
Expected behavior (i.e. solution)
I would still expect to get the scores even when there are non-matching indices between train_set and test_set
Issue Analytics
- State:
- Created 2 years ago
- Comments:7 (4 by maintainers)
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Ideally, all models should be able to handle unknown users and items. However, some specific implementations didn’t take that into account. We don’t have such a list of models that can handle unknown cases, though the majority can do so.
Yeah, that would be ideal 😃 Thank you once more, I will close the issue now.