1. 01 Jun, 2020 1 commit
  2. 15 May, 2020 1 commit
  3. 06 Mar, 2020 1 commit
  4. 05 Mar, 2020 1 commit
    • Guolin Ke's avatar
      speed up `FindBestThresholdFromHistogram` (#2867) · 77d92b7c
      Guolin Ke authored
      * speed up for const hessian
      
      * rename template
      
      * some refactorings
      
      * refine
      
      * refine
      
      * simplify codes
      
      * fix random in feature histogram
      
      * code refine
      
      * refine
      
      * try fix
      
      * make gcc happy
      
      * remove timer
      
      * rollback some changes
      
      * more templates
      
      * fix a bug
      
      * reduce the cost of timer
      
      * fix gpu
      
      * fix bug
      
      * fix gpu
      77d92b7c
  5. 28 Feb, 2020 1 commit
  6. 26 Feb, 2020 1 commit
  7. 20 Feb, 2020 1 commit
    • Joan Fontanals's avatar
      Add capability to get possible max and min values for a model (#2737) · 18e7de4f
      Joan Fontanals authored
      
      
      * Add capability to get possible max and min values for a model
      
      * Change implementation to have return value in tree.cpp, change naming to upper and lower bound, move implementation to gdbt.cpp
      
      * Update include/LightGBM/c_api.h
      Co-Authored-By: default avatarNikita Titov <nekit94-08@mail.ru>
      
      * Change iteration to avoid potential overflow, add bindings to R and Python and a basic test
      
      * Adjust test values
      
      * Consider const correctness and multithreading protection
      
      * Update test values
      
      * Update test values
      
      * Add test to check that model is exactly the same in all platforms
      
      * Try to parse the model to get the expected values
      
      * Try to parse the model to get the expected values
      
      * Fix implementation, num_leaves can be lower than the leaf_value_ size
      
      * Do not check for num_leaves to be smaller than actual size and get back to test with hardcoded value
      
      * Change test order
      
      * Add gpu_use_dp option in test
      
      * Remove helper test method
      
      * Update src/c_api.cpp
      Co-Authored-By: default avatarNikita Titov <nekit94-08@mail.ru>
      
      * Update src/io/tree.cpp
      Co-Authored-By: default avatarNikita Titov <nekit94-08@mail.ru>
      
      * Update src/io/tree.cpp
      Co-Authored-By: default avatarNikita Titov <nekit94-08@mail.ru>
      
      * Update tests/python_package_test/test_basic.py
      Co-Authored-By: default avatarNikita Titov <nekit94-08@mail.ru>
      
      * Remoove imports
      Co-authored-by: default avatarNikita Titov <nekit94-08@mail.ru>
      18e7de4f
  8. 02 Feb, 2020 1 commit
    • Guolin Ke's avatar
      Support both row-wise and col-wise multi-threading (#2699) · 509c2e50
      Guolin Ke authored
      
      
      * commit
      
      * fix a bug
      
      * fix bug
      
      * reset to track changes
      
      * refine the auto choose logic
      
      * sort the time stats output
      
      * fix include
      
      * change  multi_val_bin_sparse_threshold
      
      * add cmake
      
      * add _mm_malloc and _mm_free for cross platform
      
      * fix cmake bug
      
      * timer for split
      
      * try to fix cmake
      
      * fix tests
      
      * refactor DataPartition::Split
      
      * fix test
      
      * typo
      
      * formating
      
      * Revert "formating"
      
      This reverts commit 5b8de4f7fb9d975ee23701d276a66d40ee6d4222.
      
      * add document
      
      * [R-package] Added tests on use of force_col_wise and force_row_wise in training (#2719)
      
      * naming
      
      * fix gpu code
      
      * Update include/LightGBM/bin.h
      Co-Authored-By: default avatarJames Lamb <jaylamb20@gmail.com>
      
      * Update src/treelearner/ocl/histogram16.cl
      
      * test: swap compilers for CI
      
      * fix omp
      
      * not avx2
      
      * no aligned for feature histogram
      
      * Revert "refactor DataPartition::Split"
      
      This reverts commit 256e6d9641ade966a1f54da1752e998a1149b6f8.
      
      * slightly refactor data partition
      
      * reduce the memory cost
      Co-authored-by: default avatarJames Lamb <jaylamb20@gmail.com>
      Co-authored-by: default avatarNikita Titov <nekit94-08@mail.ru>
      509c2e50
  9. 22 Sep, 2019 1 commit
  10. 08 Sep, 2019 1 commit
    • CharlesAuguste's avatar
      [python] Improved python tree plots (#2304) · f52be9be
      CharlesAuguste authored
      * Some basic changes to the plot of the trees to make them readable.
      
      * Squeezed the information in the nodes.
      
      * Added colouring when a dictionnary mapping the features to the constraints is passed.
      
      * Fix spaces.
      
      * Added data percentage as an option in the nodes.
      
      * Squeezed the information in the leaves.
      
      * Important information is now in bold.
      
      * Added a legend for the color of monotone splits.
      
      * Changed "split_gain" to "gain" and "internal_value" to "value".
      
      * Sqeezed leaves a bit more.
      
      * Changed description in the legend.
      
      * Revert "Sqeezed leaves a bit more."
      
      This reverts commit dd8bf14a3ba604b0dfae3b7bb1c64b6784d15e03.
      
      * Increased the readability for the gain.
      
      * Tidied up the legend.
      
      * Added the data percentage in the leaves.
      
      * Added the monotone constraints to the dumped model.
      
      * Monotone constraints are now specified automatically when plotting trees.
      
      * Raise an exception instead of the bug that was here before.
      
      * Removed operators on the branches for a clearer design.
      
      * Small cleaning of the code.
      
      * Setting a monotone constraint on a categorical feature now returns an exception instead of doing nothing.
      
      * Fix bug when monotone constraints are empty.
      
      * Fix another bug when monotone constraints are empty.
      
      * Variable name change.
      
      * Added is / isn't on every edge of the trees.
      
      * Fix test "tree_create_digraph".
      
      * Add new test for plotting trees with monotone constraints.
      
      * Typo.
      
      * Update documentation of categorical features.
      
      * Typo.
      
      * Information in nodes more explicit.
      
      * Used regular strings instead of raw strings.
      
      * Small refactoring.
      
      * Some cleaning.
      
      * Added future statement.
      
      * Changed output for consistency.
      
      * Updated documentation.
      
      * Added comments for colors.
      
      * Changed text on edges for more clarity.
      
      * Small refactoring.
      
      * Modified text in leaves for consistency with nodes.
      
      * Updated default values and documentaton for consistency.
      
      * Replaced CHECK with Log::Fatal for user-friendliness.
      
      * Updated tests.
      
      * Typo.
      
      * Simplify imports.
      
      * Swapped count and weight to improve readibility of the leaves in the plotted trees.
      
      * Thresholds in bold.
      
      * Made information in nodes written in a specific order.
      
      * Added information to clarify legend.
      
      * Code cleaning.
      f52be9be
  11. 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
  12. 16 May, 2019 1 commit
  13. 13 Apr, 2019 1 commit
  14. 11 Apr, 2019 1 commit
  15. 06 Feb, 2019 1 commit
  16. 02 Feb, 2019 1 commit
  17. 17 Dec, 2018 1 commit
    • Guolin Ke's avatar
      Fix bugs in RF (#1906) · cba82447
      Guolin Ke authored
      * fix RF's bugs
      
      * fix tests
      
      * rollback num_iterations
      
      * fix a bug and reduce memory costs
      
      * reduce memory cost
      cba82447
  18. 10 Dec, 2018 1 commit
  19. 09 Oct, 2018 1 commit
    • Guolin Ke's avatar
      average predictions for constant features (#1735) · c920e634
      Guolin Ke authored
      * average predictions for constant features
      
      * fix possible numerical issues in std::log.
      
      * fix pylint
      
      * fix bugs in c_api
      
      * fix styles
      
      * clean code for multi class
      
      * rewrite test
      
      * fix pylint
      
      * skip test_constant_features
      
      * refine test
      
      * fix tests
      
      * fix tests
      
      * update FAQ
      
      * fix test
      
      * Update FAQ.rst
      c920e634
  20. 29 Sep, 2018 1 commit
  21. 22 Aug, 2018 1 commit
    • Guolin Ke's avatar
      add start_iteration in model saving (#1565) · 941068ee
      Guolin Ke authored
      * add start_iteration in model saving
      
      * fix test
      
      * shuffle models ability
      
      * fix bug
      
      * update document
      
      * refine
      
      * Update engine.py
      
      * Update basic.py
      
      * fix comments
      
      * fix comment
      941068ee
  22. 08 Jul, 2018 1 commit
  23. 20 May, 2018 1 commit
    • Guolin Ke's avatar
      Refine config object (#1381) · dc699574
      Guolin Ke authored
      * [WIP] refine config
      
      * [wip] ready for the auto code generate
      
      * auto generate config codes
      
      * use with to open file
      
      * fix bug
      
      * fix pylint
      
      * fix bug
      
      * fix pylint
      
      * fix bugs.
      
      * tmp for failed test.
      
      * fix tests.
      
      * added nthreads alias
      
      * added new aliases from new config.h
      
      * fixed duplicated alias
      
      * refactored parameter_generator.py
      
      * added new aliases from config.h and removed remaining old names
      
      * fix bugs & some miss alias
      
      * added aliases
      
      * add more descriptions.
      
      * add comment.
      dc699574
  24. 26 Apr, 2018 1 commit
  25. 24 Apr, 2018 1 commit
  26. 24 Jan, 2018 1 commit
  27. 19 Dec, 2017 1 commit
  28. 26 Nov, 2017 1 commit
    • Guolin Ke's avatar
      Speed up saving and loading model (#1083) · 8a5ec366
      Guolin Ke authored
      * remove protobuf
      
      * add version number
      
      * remove pmml script
      
      * use float for split gain
      
      * fix warnings
      
      * refine the read model logic of gbdt
      
      * fix compile error
      
      * improve decode speed
      
      * fix some bugs
      
      * fix double accuracy problem
      
      * fix bug
      
      * multi-thread save model
      
      * speed up save model to string
      
      * parallel save/load model
      
      * fix some warnings.
      
      * fix warnings.
      
      * fix a bug
      
      * remove debug output
      
      * fix doc
      
      * fix max_bin warning in tests.
      
      * fix max_bin warning
      
      * fix pylint
      
      * clean code for stringToArray
      
      * clean code for TToString
      
      * remove max_bin
      
      * replace "class" with typename
      8a5ec366
  29. 15 Nov, 2017 2 commits
  30. 26 Oct, 2017 1 commit
    • wxchan's avatar
      fix protobuf on vs build (#1004) · 2b20569e
      wxchan authored
      * [optional] support protobuf
      
      * fix windows/LightGBM.vcxproj
      
      * add doc
      
      * fix doc
      
      * fix vs support (#2)
      
      * fix vs support
      
      * fix cmake
      2b20569e
  31. 20 Oct, 2017 1 commit
  32. 19 Oct, 2017 1 commit
  33. 29 Aug, 2017 1 commit
  34. 27 Aug, 2017 2 commits
  35. 24 Aug, 2017 1 commit
  36. 18 Aug, 2017 2 commits
  37. 01 Aug, 2017 1 commit
    • wxchan's avatar
      fix model feature importances (#755) · 2e83a1c9
      wxchan authored
      * fix model feature importance
      
      * fix appveryor test
      
      * Revert "fix appveryor test"
      
      This reverts commit 3a10a1723df5b8579e345d0da07638186257ec64.
      
      * fix warning & boost_from_average_
      
      * fix bug
      
      * alter num_used_model
      2e83a1c9