Jiaming Yuan
2241563f23
Handle duplicated values in sketching. ( #6178 )
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* Accumulate weights in duplicated values.
* Fix device id in iterative dmatrix.
2020-10-10 19:32:44 +08:00
Jiaming Yuan
444131a2e6
Add categorical data support to GPU Hist. ( #6164 )
2020-09-29 11:27:25 +08:00
Jiaming Yuan
210c131ce7
Support categorical data in GPU sketching. ( #6137 )
2020-09-21 13:53:06 +08:00
Jiaming Yuan
e319b63f9e
Merge extract cuts into QuantileContainer. ( #6125 )
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* Use pruning for initial summary construction.
2020-09-18 16:36:39 +08:00
Jiaming Yuan
ee70a2380b
Unify CPU hist sketching ( #5880 )
2020-08-12 01:33:06 +08:00
Jiaming Yuan
dd445af56e
Cleanup on device sketch. ( #5874 )
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* Remove old functions.
* Merge weighted and un-weighted into a common interface.
2020-07-14 10:15:54 +08:00
Jiaming Yuan
048d969be4
Implement GK sketching on GPU. ( #5846 )
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* Implement GK sketching on GPU.
* Strong tests on quantile building.
* Handle sparse dataset by binary searching the column index.
* Hypothesis test on dask.
2020-07-07 12:16:21 +08:00
