arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.08854cs.LGcs.DCeess.SPmath.OCstat.ML
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面向机器学习的数据流放大分布式处理

Scaling-up Distributed Processing of Data Streams for Machine Learning

Target Corporation(塔吉特公司);University of Michigan(密歇根大学);Rutgers University–New Brunswick(罗格斯大学新伯朗士威分校)

Matthew Nokleby, Haroon Raja, Waheed U. Bajwa

摘要:

机器学习在许多领域的新兴应用涉及对数据流的持续收集和学习。将流数据实时并入到学习模型中对于改进这些应用中的推理是至关重要的。此外,这些应用程序通常涉及在地理上分布的实体处固有地收集的数据,或者出于存储器、计算和/或隐私原因而有意地跨多个机器分布的数据。在这种分布式的流媒体环境中训练模型需要通过物理实体之间的通信链路以协作方式解决随机优化问题。当流式传输数据率与计算节点的处理能力和/或通信链路的速率相比较高时,这提出了一个具有挑战性的问题:如何在计算能力和/或通信速率的约束下最好地利用传入数据进行分布式训练?近几十年来,出现了大量的研究来解决这一问题和相关问题。本文回顾了最近开发的方法,专注于大规模分布式随机优化的计算和带宽有限的制度,重点是收敛分析,明确占计算,通信和流速率之间的不匹配。特别是,它侧重于解决以下问题的方法:(i)分布式随机凸问题,以及(ii)分布式主成分分析,这是一个具有允许全局收敛的几何结构的非凸问题。对于这样的方法,本文讨论了分布式算法设计方面的最新进展时,面对高速率流数据。此外,它回顾了这些方法的保证,这些方法表明存在系统可以以最优速率从分布式流数据中学习的制度。

英文摘要:

Emerging applications of machine learning in numerous areas involve continuous gathering of and learning from streams of data. Real-time incorporation of streaming data into the learned models is essential for improved inference in these applications. Further, these applications often involve data that are either inherently gathered at geographically distributed entities or that are intentionally distributed across multiple machines for memory, computational, and/or privacy reasons. Training of models in this distributed, streaming setting requires solving stochastic optimization problems in a collaborative manner over communication links between the physical entities. When the streaming data rate is high compared to the processing capabilities of compute nodes and/or the rate of the communications links, this poses a challenging question: how can one best leverage the incoming data for distributed training under constraints on computing capabilities and/or communications rate? A large body of research has emerged in recent decades to tackle this and related problems. This paper reviews recently developed methods that focus on large-scale distributed stochastic optimization in the compute- and bandwidth-limited regime, with an emphasis on convergence analysis that explicitly accounts for the mismatch between computation, communication and streaming rates. In particular, it focuses on methods that solve: (i) distributed stochastic convex problems, and (ii) distributed principal component analysis, which is a nonconvex problem with geometric structure that permits global convergence. For such methods, the paper discusses recent advances in terms of distributed algorithmic designs when faced with high-rate streaming data. Further, it reviews guarantees underlying these methods, which show there exist regimes in which systems can learn from distributed, streaming data at order-optimal rates.

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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