arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.02804cs.LGcs.AIstat.ML
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通过模型重用处理概念漂移

Handling Concept Drift via Model Reuse

Nanjing University(南京大学)

Peng Zhao, Le-Wen Cai, Zhi-Hua Zhou

摘要:

在许多实际应用中,数据往往是以流的形式收集的,因此其分布往往是变化的,这在文献中被称为概念漂移。我们提出了一种新的和有效的方法来处理概念漂移通过模型重用,利用以前的知识重用模型。每个模型与表示其对当前数据的可重用性的权重相关联,并且根据模型性能自适应地调整权重。我们提供概括和遗憾分析。实验结果也验证了我们的方法在合成和真实世界的数据集上的优越性。

英文摘要:

In many real-world applications, data are often collected in the form of stream, and thus the distribution usually changes in nature, which is referred as concept drift in literature. We propose a novel and effective approach to handle concept drift via model reuse, leveraging previous knowledge by reusing models. Each model is associated with a weight representing its reusability towards current data, and the weight is adaptively adjusted according to the model performance. We provide generalization and regret analysis. Experimental results also validate the superiority of our approach on both synthetic and real-world datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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