langchain_astradb.utils.mmr.maximal_marginal_relevance¶
- langchain_astradb.utils.mmr.maximal_marginal_relevance(query_embedding: ndarray, embedding_list: list, lambda_mult: float = 0.5, k: int = 4) list[int][source]¶
Calculate maximal marginal relevance.
- Parameters
query_embedding (ndarray) –
embedding_list (list) –
lambda_mult (float) –
k (int) –
- Return type
list[int]