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arXiv 2102.03311cs.DScs.LG
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带预测的在线装箱问题

Online Bin Packing with Predictions

Sorbonne Université(索邦大学);York University(约克大学);University of Manitoba(曼尼托巴大学)

Spyros Angelopoulos, Shahin Kamali, Kimia Shadkami

AI总结:

本文研究带可学习预测的在线装箱问题,设计了在一致性与鲁棒性间高效权衡、性能随预测误差近似最优退化的在线算法,是该现实设定下首项结合理论与实验的竞争分析研究,弥补了以往仅研究极端误差情况的不足。

摘要:

装箱问题是经典优化问题,在负载均衡、供应链管理等领域有广泛应用。本文研究该问题的在线变体,即必须将一系列不同尺寸的物品放入数量最少的统一容量箱子中。我们为在线算法引入了关于序列中物品尺寸出现频率的(可能存在误差的)预测机制。我们设计并分析了多种在线算法,这些算法在一致性(即无预测误差时的竞争比)与鲁棒性(即对抗性误差下的竞争比)之间实现了高效权衡,且其性能随预测误差的变化呈现近似最优的退化趋势。这是在可学习预测的现实设定下,首项针对在线装箱问题开展竞争分析的理论与实验研究。以往工作仅涉及预测误差相关的极端情况,且依赖能力过强且无误差的预言机。

英文摘要:

Bin packing is a classic optimization problem with a wide range of applications, from load balancing to supply chain management. In this work, we study the online variant of the problem, in which a sequence of items of various sizes must be placed into a minimum number of bins of uniform capacity. The online algorithm is enhanced with a (potentially erroneous) prediction concerning the frequency of item sizes in the sequence. We design and analyze online algorithms with efficient tradeoffs between the consistency (i.e., the competitive ratio assuming no prediction error) and the robustness (i.e., the competitive ratio under adversarial error), and whose performance degrades near-optimally as a function of the prediction error. This is the first theoretical and experimental study of online bin packing under competitive analysis, in the realistic setting of learnable predictions. Previous work addressed only extreme cases with respect to the prediction error, and relied on overly powerful and error-free oracles.

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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