what does v in the paper mean?

WayneDW / DeepLight_Deep-Lightweight-Feature-Interactions

Accelerating Inference for Recommendation Systems (WSDM'21)

https://arxiv.org/abs/2002.06987

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what does v in the paper mean? #5

Closed sangyx closed 2 years ago

sangyx commented 2 years ago

Hi, thanks for sharing your work. I have a question. The equation of FwFM in the paper is:

What does the v in the above equation mean?

WayneDW commented 2 years ago

If I remember correctly, it should be some linear embedding vector for a field? This linear term may have other representations, however, engineering performance shows a superiority that it enjoys both computational efficiency and good prediction power.