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[retrievers][knn] Replace loop appends with list comprehension. (#5529)

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# Replace loop appends with list comprehension.

It's much faster, more idiomatic and slightly more readable.
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Taras Tsugrii 2023-05-31 18:57:24 -05:00 committed by GitHub
parent 0ad76c3380
commit b61f50665e
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1 changed files with 5 additions and 4 deletions
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langchain/retrievers/knn.py
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@ -51,13 +51,14 @@ class KNNRetriever(BaseRetriever, BaseModel):
denominator = np.max(similarities) - np.min(similarities) + 1e-6 denominator = np.max(similarities) - np.min(similarities) + 1e-6
normalized_similarities = (similarities - np.min(similarities)) / denominator normalized_similarities = (similarities - np.min(similarities)) / denominator
top_k_results = [] top_k_results = [
for row in sorted_ix[0 : self.k]: Document(page_content=self.texts[row])
for row in sorted_ix[0 : self.k]
if ( if (
self.relevancy_threshold is None self.relevancy_threshold is None
or normalized_similarities[row] >= self.relevancy_threshold or normalized_similarities[row] >= self.relevancy_threshold
): )
top_k_results.append(Document(page_content=self.texts[row])) ]
return top_k_results return top_k_results
async def aget_relevant_documents(self, query: str) -> List[Document]: async def aget_relevant_documents(self, query: str) -> List[Document]: