Change Log

xgboost-0.1

Initial release

xgboost-0.2x

Python module
Weighted samples instances
Initial version of pairwise rank

xgboost-0.3

Faster tree construction module
- Allows subsample columns during tree construction via bst:col_samplebytree=ratio
Support for boosting from initial predictions
Experimental version of LambdaRank
Linear booster is now parallelized, using parallel coordinated descent.
Add Code Guide for customizing objective function and evaluation
Add R module

in progress version

Distributed version
Feature importance visualization in R module, thanks to Michael Benesty
Predict leaf inde