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    Pythonlangchain-corevectorstoresutilsmaximal_marginal_relevance
    Functionā—Since v0.2

    maximal_marginal_relevance

    Copy
    maximal_marginal_relevance(
      query_embedding: npt.NDArray[np.floating],
      embedding_list: list[list[float]]
    View source on GitHub
    ,
    lambda_mult
    :
    float
    =
    0.5
    ,
    k
    :
    int
    =
    4
    )
    ->
    list
    [
    int
    ]

    Parameters

    NameTypeDescription
    query_embedding*npt.NDArray[np.floating]

    The query embedding.

    embedding_list*list[list[float]]

    A list of embeddings.

    lambda_multfloat
    Default:0.5
    kint
    Default:4

    Calculate maximal marginal relevance.

    The lambda parameter for MMR.

    The number of embeddings to return.