terraflops1048576

Changes the import described in https://github.com/ray-project/xgboost_ray/issues/302 so QUANTILE_AVAILABLE is not False.

Hi, I was looking through the source code, and I noticed this in https://github.com/ray-project/xgboost_ray/blob/master/xgboost_ray/matrix.py ``` try: from xgboost.core import QuantileDmatrix QUANTILE_AVAILABLE = True except ImportError: QuantileDmatrix = object QUANTILE_AVAILABLE =...

[Data] Add support for objects to Arrow blocks

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## Why are these changes needed? Currently, Ray does not support blocks/batches with objects and multi-dimensional arrays in different columns. This causes Ray Data to throw exceptions when these are...

## Why are these changes needed? Currently, the ArrowTensorArray and ArrowVariableShapedTensorArray types use int32 to encode the list offsets. This means that within a given PyArrow chunk in a column,...

Failure to build for Python 3.11

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Hi, I'm trying to build this for Python 3.11. I would much rather have a wheel for amd64 linux, but I see that the wheels on PyPI are very outdated...

Voting Parallel Learner

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LightGBM implements a voting-parallel tree learner to reduce the communication overhead between nodes for datasets with a large number of features. Currently, I'm working on a project that requests on...