lenskit.knn.association.AssociationConfig
=========================================

.. py:class:: lenskit.knn.association.AssociationConfig
   

   Bases: :py:obj:`pydantic.BaseModel`


   Configuration options for :class:`AssociationScorer`.


   .. py:attribute:: method
      :type:  AssociationMethod
      :value: 'probability'


      The formula to use for computing item association level.


   .. py:attribute:: damping
      :type:  pydantic.NonNegativeFloat
      :value: 0.0


      Damping factor (:math:`\kappa`) for `biased lift`_.

      .. _biased lift: https://md.ekstrandom.net/blog/2025/01/biased-lift


   .. py:attribute:: max_nbrs
      :type:  pydantic.PositiveInt | None
      :value: None


      Maximum number of reference items used to score each target item.  If
      ``None``, items are scored by the mean of their score with respect to each
      reference item.  If a positive integer :math:`n`, then only the :math:`n`
      most-related reference items are used.  :math:`n=1` is equivalent to using
      only the maximum relatedness.