rm math module

rwth-i6 · Dec 19, 2024 · afd5481 · afd5481
1 parent acccbbe
commit afd5481
Showing 1 changed file with 3 additions and 5 deletions.
diff --git a/i6_models/losses/nce.py b/i6_models/losses/nce.py
@@ -6,7 +6,6 @@
 from torch import nn
 from torch.nn import functional as F
 from typing import Optional
-import math
 
 
 class NoiseContrastiveEstimationLossV1(nn.Module):
@@ -53,10 +52,9 @@ def forward(self, data: torch.Tensor, target: torch.Tensor) -> torch.Tensor:
             samples = self.noise_distribution_sampler.sample(self.num_samples).cuda()
 
             # log-probabilities for the noise distribution k * q(w|h)
-            sampled_prob = math.log(self.num_samples) + self.noise_distribution_sampler.log_prob(
-                samples
-            )  # [num_samples]
-            true_sample_prob = math.log(self.num_samples) + self.noise_distribution_sampler.log_prob(target)  # [B x T]
+            ws = torch.log(torch.Tensor([self.num_samples]))
+            sampled_prob = ws + self.noise_distribution_sampler.log_prob(samples)  # [num_samples]
+            true_sample_prob = ws + self.noise_distribution_sampler.log_prob(target)  # [B x T]
 
         all_classes = torch.cat((target, samples), 0)  # [B x T + num_sampled]