tensorflow / tensorflow/recommenders

Candidate tower multiple features

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Dominant language
Python
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Description

Hi
Im trying to add a new feature to the candidate tower (product title) as well as the ID of the product. I followed the same process as the user tower however i get a error from this line

    self.task = tfrs.tasks.Retrieval(
        metrics=tfrs.metrics.FactorizedTopK(
            candidates=products.batch(2048*4).map(self.candidate_model), 
        ),
    )

I think its because I have multiple features in the cadidate model but I dont know how to solve

Contributor guide

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First steps

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  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 candidate tower setup and the Retrieval/FactorizedTopK construction shown in the issue, then compare it with the user tower process. Reproduce the failure using multiple candidate features and record the missing error details. Done means the candidate tower can include the product title and product ID without the retrieval task failing.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, tensorflow
Domain
machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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