maximal_marginal_relevance

langchain_community.vectorstores.utils.maximal_marginal_relevance(query_embedding: ndarray, embedding_list: list, lambda_mult: float = 0.5, k: int = 4) → List[int]

Calculate maximal marginal relevance.

Parameters:

• query_embedding (ndarray) –

• embedding_list (list) –

• lambda_mult (float) –

• k (int) –

Return type:

List[int]