lyst / lyst/lightfm

Incorporating Time-Dependent Interactions

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Python
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Description

Hi,
In Rendle's original paper on FM (https://www.csie.ntu.edu.tw/~b97053/paper/Rendle2010FM.pdf), he used a feature that captures the time of the user-item interaction. This should improve the model.

In your model, from what I see, we can input user features, item features and the interactions themselves.
How can I add the time of the interaction into the mix?

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by reading the LightFM model input and feature APIs to understand how user features, item features, and interactions are currently represented. Then compare those capabilities with the time-dependent interaction described in the linked Rendle paper. Done would require a clearly defined, supported way to incorporate interaction time, or documentation explaining the limitation.

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Assessment

Tech stack
python
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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