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Use 2 groups in whitening for NonlinAttentionModule; limit 40->20.

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Daniel Povey 2022-11-21 23:23:41 +08:00
parent b3b5e8b9b9
commit 71f118e725
1 changed files with 2 additions and 2 deletions
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egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
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@ -1424,8 +1424,8 @@ class NonlinAttentionModule(nn.Module):
) )
# give it a high limit, because it is quite high-dimensional and is # give it a high limit, because it is quite high-dimensional and is
# a projection of a lower-dimensional embedding. # a projection of a lower-dimensional embedding.
self.whiten = Whiten(num_groups=1, self.whiten = Whiten(num_groups=2,
whitening_limit=40.0, whitening_limit=20.0,
prob=(0.025, 0.25), prob=(0.025, 0.25),
grad_scale=0.01) grad_scale=0.01)