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community[patch]: Replace function in CassandraVectorStore with simpler lambda (#20323)

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Christophe Bornet 2024-04-17 23:13:13 +02:00 committed by GitHub
parent 75733c5cc1
commit a22da4315b
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1 changed files with 1 additions and 6 deletions
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7
libs/community/langchain_community/vectorstores/cassandra.py
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@ -112,18 +112,13 @@ class Cassandra(VectorStore):
def embeddings(self) -> Embeddings:
return self.embedding
@staticmethod
def _dont_flip_the_cos_score(distance: float) -> float:
# the identity
return distance
def _select_relevance_score_fn(self) -> Callable[[float], float]:
"""
The underlying VectorTable already returns a "score proper",
i.e. one in [0, 1] where higher means more *similar*,
so here the final score transformation is not reversing the interval:
"""
return self._dont_flip_the_cos_score
return lambda score: score
def delete_collection(self) -> None:
"""