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arXiv 2011.08930cs.LGstat.ML
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多核分布式在线学习

Distributed Online Learning with Multiple Kernels

University of Southern California(南加州大学);Hanyang University(汉阳大学)

Jeongmin Chae, Songnam Hong

摘要:

在物联网(IoT)系统中,存在由大量IoT设备提供的大量信息数据(例如,传感器)。从这些数据中学习函数在物联网系统的机器学习任务中具有极大的兴趣。针对流(或序列)数据,我们提出了一个隐私保护的分布式多核在线学习框架(DOMKL)。建议的DOMKL设计利用在线交替方向的乘数(OADMM)和分布式对冲算法的原则。我们从理论上证明了DOMKL在T个时隙上可以实现最优次线性遗憾,这意味着每个学习函数都可以像最先进的集中式在线学习方法那样在事后实现最佳函数的性能。此外,确保任何两个相邻学习器的学习函数随着T的增长具有可忽略的差异,即,所谓的共识约束依然存在。通过各种真实数据集的实验测试,我们验证了所提出的DOMKL回归和时间序列预测任务的有效性。

英文摘要:

In the Internet-of-Things (IoT) systems, there are plenty of informative data provided by a massive number of IoT devices (e.g., sensors). Learning a function from such data is of great interest in machine learning tasks for IoT systems. Focusing on streaming (or sequential) data, we present a privacy-preserving distributed online learning framework with multiplekernels (named DOMKL). The proposed DOMKL is devised by leveraging the principles of an online alternating direction of multipliers (OADMM) and a distributed Hedge algorithm. We theoretically prove that DOMKL over T time slots can achieve an optimal sublinear regret, implying that every learned function achieves the performance of the best function in hindsight as in the state-of-the-art centralized online learning method. Moreover, it is ensured that the learned functions of any two neighboring learners have a negligible difference as T grows, i.e., the so-called consensus constraints hold. Via experimental tests with various real datasets, we verify the effectiveness of the proposed DOMKL on regression and time-series prediction tasks.

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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