報告題目：Reducing Delay in Retrial Queues by Simultaneously Differentiating Service and Retrial Rates
報告人：中央財經大學管理科學與工程學院副院長 王金亭 教授
時間：5月28日 16:30-18:00
騰訊會議號：805185020
內容簡介：
In this talk, we introduce a service grade differentiation policy for queueing models with customer retrials. We show that the average waiting time can be reduced through strategically allocating the rates of service and retrial times without needing additional service capacity. Countering to the intuition that higher service variability usually yields a larger delay, we show that the benefits of our simultaneous service-and-retrial differentiation policy outweigh the impact of the increased service variability. We present a necessary and sufficient condition under which the proposed policy reduces the waiting time and a closed-form expression for the optimal allocation policy. In heavy traffic, our policy can asymptotically reduce both the delay and the number of retrials before entering service by a significant factor, which is a function of the ratio of the service rate to the retrial rate.
報告人簡介：
王金亭，博士，教授，博士生導師，中央財經大學管理科學與工程學院副院長。主要研究領域是隨機服務與運作管理、排隊論、可靠性理論、供應鏈優化與管理等。在OR、POM、OMEGA、Queueing Systems、EJOR、Naval Research Logistics、IEEE Transactions on Vehicular Technology、Annals of OR等期刊上共發表130余篇學術論文，包括90余篇SCI/SSCI檢索論文。2016年出版專著《排隊博弈論基礎》。現任中國運籌學會可靠性分會理事長、中國運籌學會理事等。2006年獲得教育部霍英東教育基金會第十屆高等院校青年教師獎，2011年入選教育部新世紀優秀人才支持計劃，2018年獲得詹天佑鐵道科學技術獎專項科技獎。
（承辦：科研與學術交流中心）
