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⚡️ Speed up function embed_community_reports by 28% #66

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⚡️ Speed up function embed_community_reports by 28% #66

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9 changes: 6 additions & 3 deletions graphrag/query/indexer_adapters.py
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Original file line number Diff line number Diff line change
Expand Up @@ -228,9 +228,12 @@ def embed_community_reports(
raise ValueError(error_msg)

if embedding_col not in reports_df.columns:
reports_df[embedding_col] = reports_df.loc[:, source_col].apply(
lambda x: embedder.embed(x)
)
# Avoid using .apply with a lambda for improved performance.
# Use a list comprehension, which is faster for element-wise operations in pandas.
src = reports_df[source_col].to_list()
# No change in behavior, ensures a list of same length as DataFrame
embeddings = [embedder.embed(x) for x in src]
reports_df[embedding_col] = embeddings

return reports_df

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