NVIDIA-Merlin / NVIDIA-Merlin/Transformers4Rec

[FEA] Sparse input

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status/needs-triage
Dominant language
Python
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Description

Is there a way for the library to handle very large sparse input,
something with ?
item_id: # 50 millions.
session_id : 50 millions

Usually, Rec are sparse data problem, so handling sparse data would be best.
Thanks

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Research direction

The issue names no file, test, or entry point; start by locating the library's input handling for item_id and session_id. Clarify the sparse representation and scale requirements, then define acceptance tests showing 50-million-value inputs can be handled without dense expansion.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, pytorch
Domain
machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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