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Add support to optimize for NDCG at a given truncation level #3425

Merged
merged 15 commits into from
Oct 27, 2020
Merged

Add support to optimize for NDCG at a given truncation level #3425

merged 15 commits into from
Oct 27, 2020

Commits on Sep 30, 2020

  1. Add support to optimize for NDCG at a given truncation level 

    In order to correctly optimize for NDCG@_k_, one should exclude pairs containing both documents beyond the top-_k_ (as they don't affect NDCG@_k_ when swapped).
    @metpavel
    metpavel authored Sep 30, 2020
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  2. Update rank_objective.hpp

    @metpavel
    metpavel authored Sep 30, 2020
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Commits on Oct 9, 2020

  1. Apply suggestions from code review 

    Co-authored-by: Guolin Ke <guolin.ke@outlook.com>
    @metpavel @guolinke
    metpavel and guolinke authored Oct 9, 2020
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  2. Update rank_objective.hpp 

    remove the additional branching: get high_rank and low_rank by one "if".
    @metpavel
    metpavel authored Oct 9, 2020
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Commits on Oct 20, 2020

  1. Update config.h 

    add description to lambdarank_truncation_level parameter
    @metpavel
    metpavel authored Oct 20, 2020
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Commits on Oct 21, 2020

  1. Update Parameters.rst

    @metpavel
    metpavel authored Oct 21, 2020
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Commits on Oct 22, 2020

  1. Merge branch 'master' into patch-1

    @guolinke
    guolinke authored Oct 22, 2020
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  2. Update test_sklearn.py 

    update expected NDCG value for a test, as it was affected by the underlying change in the algorithm
    @metpavel
    metpavel authored Oct 22, 2020
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  3. Update test_sklearn.py 

    update NDCG@3 reference value
    @metpavel
    metpavel authored Oct 22, 2020
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Commits on Oct 23, 2020

  1. fix R learning-to-rank tests

    @jameslamb
    jameslamb committed Oct 23, 2020
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Commits on Oct 25, 2020

  1. Merge pull request #1 from jameslamb/fix/r-ltr-tests 

    fix R learning-to-rank tests
    @metpavel
    metpavel authored Oct 25, 2020
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  2. Merge branch 'master' into patch-1

    @metpavel
    metpavel authored Oct 25, 2020
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  3. Update rank_objective.hpp

    @metpavel
    metpavel authored Oct 25, 2020
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Commits on Oct 26, 2020

  1. Update include/LightGBM/config.h 

    Co-authored-by: Guolin Ke <guolin.ke@outlook.com>
    @metpavel @guolinke
    metpavel and guolinke authored Oct 26, 2020
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  2. Update Parameters.rst

    @metpavel
    metpavel authored Oct 26, 2020
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