langchain_community.vectorstores.utils.maximal_marginal_relevanceΒΆ

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

Calculate maximal marginal relevance.

Parameters
  • query_embedding (ndarray) –

  • embedding_list (list) –

  • lambda_mult (float) –

  • k (int) –

Return type

List[int]