Cited by 133,538Statistical Methods and InferenceMachine Learning and Data ClassificationImbalanced Data Classification Techniques

Random Forests

Open access
Breiman, Leo·2001·Machine Learning

Abstract

Random forests are a combination of tree predictors such that each tree depends on the values of a random vector sampled independently and with the same distribution for all trees in the forest. The generalization error for forests converges a.s. to a limit as the number of trees in the forest becomes large. The generalization error of a forest of tree classifiers depends on the strength of the individual trees in the forest and the correlation between them. Using a random selection of features to split each node yields error rates that compare favorably to Adaboost (Y. Freund & R. Schapire, Machine Learning: Proceedings of the Thirteenth International conference, ***, 148–156), but are more robust with respect to noise. Internal estimates monitor error, strength, and correlation and these are used to show the response to increasing the number of features used in the splitting. Internal estimates are also used to measure variable importance. These ideas are also applicable to regression.

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Crossref · 10.1023/a:1010933404324

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Authors
Breiman, L.
Affiliations
University of California, Berkeley (US)
Corresponding author
Breiman, Leo
Venue
Machine Learning
Published
2001-10
Volume
45
Issue
1
Pages
5-32
ISSN
  • 0885-6125 (ISSN-L)
  • 1573-0565
OpenAlex
W2911964244
Cited by
133,538
References
15
Citations by year
2026: 18528 · 2025: 16751 · 2024: 14088 · 2023: 12732 · 2022: 11712 · 2021: 11577 · 2020: 9483 · 2019: 7661 · 2018: 6275 · 2017: 4956 · 2016: 4152 · 2015: 3623 · 2014: 2944 · 2013: 2268 · 2012: 1761
FWCI
74.54
Type
journal article
Language
en
Open access
Locations
  • Machine Learning (publishedVersion)
  • Repository of Digital Objects for Teaching Research and Culture (University of Valencia) (submittedVersion, cc-by-sa)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Inference
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning and Data Classification
  • Physical Sciences › Computer Science › Artificial Intelligence › Imbalanced Data Classification Techniques
Keywords
random forest, ensemble learning, classification trees, generalization error, asymptotic convergence, feature selection, node splitting, AdaBoost comparison, noise robustness, feature importance, regression forests

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