Queue Scheduling with Adversarial Bandit Learning

• URL: http://arxiv.org/abs/2303.01745v1
• Date: Fri, 3 Mar 2023 07:17:09 GMT
• Title: Queue Scheduling with Adversarial Bandit Learning
• Authors: Jiatai Huang, Leana Golubchik, Longbo Huang
• Abstract summary: We consider a one-hop single-server queueing system consisting of $K$ queues, each with time-varying and non-stationary arrival and service rates. Our scheduling approach builds on an innovative combination of adversarial bandit learning and Lyapunov drift minimization. We present two novel algorithms capable of stabilizing systems that can be stablized by some (possibly unknown) sequence of randomized policies.
• Score: 20.606599586119835
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: In this paper, we study scheduling of a queueing system with zero knowledge of instantaneous network conditions. We consider a one-hop single-server queueing system consisting of $K$ queues, each with time-varying and non-stationary arrival and service rates. Our scheduling approach builds on an innovative combination of adversarial bandit learning and Lyapunov drift minimization, without knowledge of the instantaneous network state (the arrival and service rates) of each queue. We then present two novel algorithms \texttt{SoftMW} (SoftMaxWeight) and \texttt{SSMW} (Sliding-window SoftMaxWeight), both capable of stabilizing systems that can be stablized by some (possibly unknown) sequence of randomized policies whose time-variation satisfies a mild condition. We further generalize our results to the setting where arrivals and departures only have bounded moments instead of being deterministically bounded and propose \texttt{SoftMW+} and \texttt{SSMW+} that are capable of stabilizing the system. As a building block of our new algorithms, we also extend the classical \texttt{EXP3.S} (Auer et al., 2002) algorithm for multi-armed bandits to handle unboundedly large feedback signals, which can be of independent interest.

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