Hendrik/xgboost
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4 Commits

Author SHA1 Message Date
Rory Mitchell
1be09848a7
Refactor split valuation kernel (#8073) 2022-07-21 15:41:50 +02:00
Jiaming Yuan
bde4f25794
Handle missing categorical value in CPU evaluator. (#7948) 2022-05-27 14:15:47 +08:00
Jiaming Yuan
1b6538b4e5
[breaking] Drop single precision histogram (#7892) 
Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
 2022-05-13 19:54:55 +08:00
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