DMatrix Refactor Discussion


#1

Since DMatrix refactor results in a major change of data structure and internals, let us do an RFC discussion of choices and their consequences.

cc @hcho3

@RAMitchell Can you make a list of proposed changes?


#4

There has been a report of XGBoost-Spark crashing after DMatrix refactor: https://github.com/dmlc/xgboost/issues/3402


#5

Theo (@thvasilo, GitHub profile) found a bug that’s smilar to #3402. I’ll post more updates on this.


#6

I submitted a patch to fix a bug introduced by the refactor.