1. 25 Jul, 2019 2 commits
  2. 08 Jul, 2019 1 commit
    • Belinda Trotta's avatar
      Max bin by feature (#2190) · 291752de
      Belinda Trotta authored
      * Add parameter max_bin_by_feature.
      
      * Fix minor bug.
      
      * Fix minor bug.
      
      * Fix calculation of header size for writing binary file.
      
      * Fix style issues.
      
      * Fix python style issue.
      
      * Fix test and python style issue.
      291752de
  3. 07 Jul, 2019 1 commit
  4. 18 Jun, 2019 1 commit
    • Guolin Ke's avatar
      balanced bagging (#2214) · cdba7147
      Guolin Ke authored
      * add balanced bagging
      
      * refine code
      
      * fix format
      
      * clarify usage only for binary application
      cdba7147
  5. 26 May, 2019 1 commit
    • Belinda Trotta's avatar
      Top k multi error (#2178) · b3db9e92
      Belinda Trotta authored
      * Implement top-k multiclass error metric. Add new parameter top_k_threshold.
      
      * Add test for multiclass metrics
      
      * Make test less sensitive to avoid floating-point issues.
      
      * Change tabs to spaces.
      
      * Fix problem with test in Python 2. Refactor to use np.testing. Decrease number of training rounds so loss is larger and easier to compare.
      
      * Move multiclass tests into test_engine.py
      
      * Change parameter name from top_k_threshold to multi_error_top_k.
      
      * Fix top-k error metric to handle case where scores are equal. Update tests and docs.
      
      * Change name of top-k metric to multi_error@k.
      
      * Change tabs to spaces.
      
      * Fix formatting.
      
      * Fix minor issues in docs.
      b3db9e92
  6. 16 May, 2019 1 commit
  7. 15 May, 2019 2 commits
  8. 08 May, 2019 1 commit
  9. 28 Apr, 2019 1 commit
  10. 19 Apr, 2019 1 commit
    • Scott Lundberg's avatar
      [docs] Update doc string for pred_contrib (#2116) · 89f2021a
      Scott Lundberg authored
      * Update doc string for pred_contrib
      
      See comments at the end of #1969
      
      * Update basic.py
      
      * Update basic.py
      
      * update doc strings
      
      * update equals sign in doc string
      
      * strip whitespace and gen rst
      
      * strip whitespace
      89f2021a
  11. 18 Apr, 2019 1 commit
  12. 13 Apr, 2019 2 commits
  13. 11 Apr, 2019 1 commit
  14. 04 Apr, 2019 1 commit
    • remcob-gr's avatar
      Add Cost Effective Gradient Boosting (#2014) · 76102284
      remcob-gr authored
      * Add configuration parameters for CEGB.
      
      * Add skeleton CEGB tree learner
      
      Like the original CEGB version, this inherits from SerialTreeLearner.
      Currently, it changes nothing from the original.
      
      * Track features used in CEGB tree learner.
      
      * Pull CEGB tradeoff and coupled feature penalty from config.
      
      * Implement finding best splits for CEGB
      
      This is heavily based on the serial version, but just adds using the coupled penalties.
      
      * Set proper defaults for cegb parameters.
      
      * Ensure sanity checks don't switch off CEGB.
      
      * Implement per-data-point feature penalties in CEGB.
      
      * Implement split penalty and remove unused parameters.
      
      * Merge changes from CEGB tree learner into serial tree learner
      
      * Represent features_used_in_data by a bitset, to reduce the memory overhead of CEGB, and add sanity checks for the lengths of the penalty vectors.
      
      * Fix bug where CEGB would incorrectly penalise a previously used feature
      
      The tree learner did not update the gains of previously computed leaf splits when splitting a leaf elsewhere in the tree.
      This caused it to prefer new features due to incorrectly penalising splitting on previously used features.
      
      * Document CEGB parameters and add them to the appropriate section.
      
      * Remove leftover reference to cegb tree learner.
      
      * Remove outdated diff.
      
      * Fix warnings
      
      * Fix minor issues identified by @StrikerRUS.
      
      * Add docs section on CEGB, including citation.
      
      * Fix link.
      
      * Fix CI failure.
      
      * Add some unit tests
      
      * Fix pylint issues.
      
      * Fix remaining pylint issue
      76102284
  15. 24 Feb, 2019 1 commit
  16. 06 Feb, 2019 1 commit
  17. 02 Feb, 2019 1 commit
  18. 25 Nov, 2018 1 commit
  19. 22 Nov, 2018 1 commit
  20. 29 Oct, 2018 1 commit
  21. 27 Oct, 2018 1 commit
  22. 10 Oct, 2018 1 commit
  23. 16 Sep, 2018 1 commit
  24. 11 Sep, 2018 1 commit
  25. 06 Sep, 2018 1 commit
  26. 29 Aug, 2018 1 commit
  27. 27 Aug, 2018 1 commit
  28. 25 Aug, 2018 1 commit
    • Guolin Ke's avatar
      add support of refit-decay (#1603) · 2db6377a
      Guolin Ke authored
      * add support of refit-decay
      
      * add refit into c_api
      
      * add test
      
      * update document
      
      * Update basic.py
      
      * Update test_engine.py
      
      * Update basic.py
      
      * Update test_engine.py
      
      * fix comments
      
      * update test
      
      * fix the comments
      
      * Update test_engine.py
      2db6377a
  29. 08 Aug, 2018 1 commit
  30. 06 Aug, 2018 1 commit
  31. 31 Jul, 2018 1 commit
  32. 25 Jul, 2018 1 commit
  33. 15 Jul, 2018 1 commit
  34. 12 Jul, 2018 1 commit
  35. 09 Jul, 2018 1 commit
  36. 14 Jun, 2018 1 commit
  37. 10 Jun, 2018 1 commit