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Simplify PyTorch interact feature computation #186

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Simplify PyTorch interact feature computation #186

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3 changes: 1 addition & 2 deletions dlrm_s_pytorch.py
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Original file line number Diff line number Diff line change
Expand Up @@ -474,8 +474,7 @@ def interact_features(self, x, ly):

if self.arch_interaction_op == "dot":
# concatenate dense and sparse features
(batch_size, d) = x.shape
T = torch.cat([x] + ly, dim=1).view((batch_size, -1, d))
T = torch.stack([x] + ly, dim=1)
# perform a dot product
Z = torch.bmm(T, torch.transpose(T, 1, 2))
# append dense feature with the interactions (into a row vector)
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