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[cli] rename cosine_distance as cosine_similarity and fix recognize func #224

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Nov 9, 2023
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[cli] rename cosine_distance as cosine_similarity and fix recognize func #224

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11 changes: 6 additions & 5 deletions wespeaker/cli/speaker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -76,10 +76,11 @@ def compute_similarity(self, audio_path1: str, audio_path2) -> float:
if e1 is None or e2 is None:
return 0.0
else:
return self.cosine_distance(e1, e2)
return self.cosine_similarity(e1, e2)

def cosine_distance(self, e1, e2):
return np.dot(e1, e2) / (norm(e1) * norm(e2))
def cosine_similarity(self, e1, e2):
cosine_score = np.dot(e1, e2) / (norm(e1) * norm(e2))
return (cosine_score + 1.0) / 2 # normalize: [-1, 1] => [0, 1]

def register(self, name: str, audio_path: str):
if name in self.table:
Expand All @@ -92,8 +93,8 @@ def recognize(self, audio_path: str):
best_score = 0.0
best_name = ''
for name, e in self.table.items():
score = self.cosine_distance(q, e)
if best_score < score:
score = self.cosine_similarity(q, e)
if best_score > score:
best_score = score
best_name = name
result = {}
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