lyst / lyst/lightfm

RMSE for Explicit Data

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Dominant language
Python
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Description

The documentation homepage says,
"LightFM is a Python implementation of a number of popular recommendation algorithms for both implicit and explicit feedback."

But if it can work with explicit feedback, why no RMSE or MAE metrics are provided in model evaluation(**https://making.lyst.com/lightfm/docs/lightfm.evaluation.html**)? Only ranking metrics are provided. Does this mean actually LightFM only can work with implicit data?

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the documentation homepage and the LightFM evaluation documentation at making.lyst.com/lightfm/docs/lightfm.evaluation.html. Verify how explicit feedback is supported and whether the absence of RMSE or MAE is intentional; the documentation is done when it clearly explains this relationship and the available evaluation metrics.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
documentation, machine-learning
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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