Hendrik/xgboost
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4 Commits

Author SHA1 Message Date
ZHAOKAI WANG
2b76061659
remove redundant method in expand_entry (#9283) 2023-06-10 05:18:21 +08:00
Rory Mitchell
210915c985
Use integer gradients in gpu_hist split evaluation (#8274) 2022-10-11 12:16:27 +02:00
Jiaming Yuan
0d0abe1845
Support optimal partitioning for GPU hist. (#7652) 
* Implement `MaxCategory` in quantile.
* Implement partition-based split for GPU evaluation.  Currently, it's based on the existing evaluation function.
* Extract an evaluator from GPU Hist to store the needed states.
* Added some CUDA stream/event utilities.
* Update document with references.
* Fixed a bug in approx evaluator where the number of data points is less than the number of categories.
 2022-02-15 03:03:12 +08:00
ShvetsKS
57c732655e
Merge lossgude and depthwise strategies for CPU hist (#7007) 
* fix java/scala test: max depth is also valid parameter for lossguide

Co-authored-by: Kirill Shvets <kirill.shvets@intel.com>
 2021-06-03 01:49:43 +08:00