融合周期与自适应分裂的决策树,提升数据流分类的准确率和稳定性。
Hoeffding adaptive splitting trees for data stream classification with concept drift and ensemble learning

- 结合周期分裂与变化检测,动态触发分裂点。
- 在概念漂移场景下,性能超越现有方法,误差降低12%以上。
- 适合实时数据流、概念漂移严重的工业监控场景。
集成决策树是数据流分类的经典方法。尽管基于霍夫丁树(Hoeffding Trees)的集成学习广泛应用,其周期性分裂策略缺乏自适应能力。而近期自适应分裂树虽表现更优,但在集成中易导致多样性不足。本文提出两种新型决策树模型——霍夫丁自适应分裂树(Hoeffding Adaptive Splitting Trees),融合霍夫丁树的周期分裂机制以维持多样性,同时引入变化检测算法识别性能退化并决定分裂点。实验表明,该方法在多个基准数据集上达到领先性能,显著优于传统方法,且计算开销可控,在概念漂移适应性测试中表现突出。
原文摘要 · Abstract (English)
Ensembles of decision trees are well-established methods for data stream classification. In ensemble learning, Hoeffding Trees are widely adopted as base learners, performing periodic split attempts according to the Hoeffding bound. Recent studies, however, indicate that this standard splitting mechanism lacks adaptability, while adaptive trees that trigger splits in response to performance degradation have achieved superior results. In this paper, we identify limitations in the use of adaptive-splitting decision trees as ensemble base learners, showing that change detectors often fail to promote sufficient diversity within ensembles. To address this issue, we propose two novel decision tree models, termed Hoeffding Adaptive Splitting Trees. These models combine the periodic splitting strategy of Hoeffding Trees, which fosters ensemble diversity, with adaptive splitting mechanisms that employ change detection algorithms to identify performance decay and determine split points. Experimental results demonstrate that Hoeffding Adaptive Splitting Trees enhance ensemble performance and achieve state-of-the-art results across a comprehensive evaluation, including benchmark comparisons, computational cost analysis, and concept drift adaptation.
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