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catboost v0.17.4 Release Notes

Release Date: 2019-10-01 // over 4 years ago

  • 👌 Improvements:

    • Massive 2x speedup for MultiClass with many classes
    • Updated MVS implementation. See Minimal Variance Sampling in Stochastic Gradient Boosting by Bulat Ibragimov and Gleb Gusev at NeurIPS 2019
    • ➕ Added sum_models in R-package, #1007

    🐛 Bugs fixed:

    • Multi model initialization in python, #995
    • Mishandling of 255 borders in training on GPU, #1010