Model understanding of feature crosses

tensorflow / recommenders

TensorFlow Recommenders is a library for building recommender system models using TensorFlow.

Apache License 2.0

1.84k stars 276 forks source link

Model understanding of feature crosses #434

Open cory1219 opened 2 years ago

cory1219 commented 2 years ago

Hello,

I am wondering why the plot of feature crosses shown in the tutorial (https://www.tensorflow.org/recommenders/examples/dcn) is not symmetric? Isn't W_i,j the same as W_j,i since they both explain the importance of interaction between feature x_i and x_j?

Thanks in advance.

Lulu20220 commented 2 years ago

I have the same question on it. Anyone else has thoughts?