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Narrowing the Gap: Random Forests In Theory and In Practice

2020-03-04 | |  68 |   50 |   0

Abstract

Despite widespread interest and practical use, the theoretical properties of random forests are still not well understood. In this paper we contribute to this understanding in two ways. We present a new theoretically tractable variant of random regression forests and prove that our algorithm is consistent. We also provide an empirical evaluation, comparing our algorithm and other theoretically tractable random forest models to the random forest algorithm used in practice. Our experiments provide insight into the relative importance of different simplifications that theoreti cians have made to obtain tractable models for analysis.

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