Hendrik/xgboost
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4 Commits

Author SHA1 Message Date
Rory Mitchell
3ad4333b0e
Partial rewrite EllpackPage (#5352) 2020-03-11 10:15:53 +13:00
Jiaming Yuan
8d06878bf9
Deterministic GPU histogram. (#5361) 
* Use pre-rounding based method to obtain reproducible floating point
  summation.
* GPU Hist for regression and classification are bit-by-bit reproducible.
* Add doc.
* Switch to thrust reduce for `node_sum_gradient`.
 2020-03-04 15:13:28 +08:00
Kodi Arfer
f2277e7106 Use DART tree weights when computing SHAPs (#5050) 
This PR fixes tree weights in dart being ignored when computing contributions.

* Fix ellpack page source link.
* Add tree weights to compute contribution.
 2019-12-03 19:55:53 +08:00
Rong Ou
5b1715d97c Write ELLPACK pages to disk (#4879) 
* add ellpack source
* add batch param
* extract function to parse cache info
* construct ellpack info separately
* push batch to ellpack page
* write ellpack page.
* make sparse page source reusable
 2019-10-22 23:44:32 -04:00