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ranger: A Fast Implementation of Random Forests for High Dimensional Data in C++ and R

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arxiv 1508.04409 v2 pith:JC5EKJW4 submitted 2015-08-18 stat.ML stat.CO

ranger: A Fast Implementation of Random Forests for High Dimensional Data in C++ and R

classification stat.ML stat.CO
keywords implementationdataforestsrandomrangerdimensionalfastfeatures
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce the C++ application and R package ranger. The software is a fast implementation of random forests for high dimensional data. Ensembles of classification, regression and survival trees are supported. We describe the implementation, provide examples, validate the package with a reference implementation, and compare runtime and memory usage with other implementations. The new software proves to scale best with the number of features, samples, trees, and features tried for splitting. Finally, we show that ranger is the fastest and most memory efficient implementation of random forests to analyze data on the scale of a genome-wide association study.

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