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[doc] Fix the default value for lambdarank_pair_method. #10098

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Mar 11, 2024
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[doc] Fix the default value for lambdarank_pair_method. #10098

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[doc] Fix the default value for `lambdarank_pair_method`.
trivialfis Mar 8, 2024
9e65f45
Merge branch 'master' into doc-fix-ltr
trivialfis Mar 8, 2024
dd7043a
version tag.
trivialfis Mar 8, 2024
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4 changes: 3 additions & 1 deletion doc/parameter.rst
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Expand Up @@ -489,7 +489,7 @@ Parameters for learning to rank (``rank:ndcg``, ``rank:map``, ``rank:pairwise``)

These are parameters specific to learning to rank task. See :doc:`Learning to Rank </tutorials/learning_to_rank>` for an in-depth explanation.

* ``lambdarank_pair_method`` [default = ``mean``]
* ``lambdarank_pair_method`` [default = ``topk``]

How to construct pairs for pair-wise learning.

Expand All @@ -502,6 +502,8 @@ These are parameters specific to learning to rank task. See :doc:`Learning to Ra

* ``lambdarank_normalization`` [default = ``true``]

.. versionadded:: 2.1.0

Whether to normalize the leaf value by lambda gradient. This can sometimes stagnate the training progress.

* ``lambdarank_unbiased`` [default = ``false``]
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