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- W2274787120 abstract "In the past few years, call centers have been introduced with great success by many service-oriented companies such as banks and insurance companies. They become the main point of contact with the customers, and an integral part of the majority of corporations. The large-scale emergence of call centers has created a fertile source of management issues. In this thesis, we focus on the issue of staffing and scheduling of call centers. The objective of our work is to derive both qualitative and quantitative results for practical management.We specifically address the analysis of four problems that take into account the important feature of uncertainty in the call arrival parameters. The call arrival process is assumed to follow a doubly non-stationary stochastic process with a random mean arrival rate.In the first model, we consider a single-shift call center blending inbound calls and back-office jobs. By allowing the possibility of real-time changes in the capacity dealing with inbound calls, we analyze the impact of the flexibility offered by back-office jobs.In the second model, we consider a multi-shift call center with single type of inbound calls, in which the scheduling update is allowed. We propose a two-stage stochastic programming approach and an adjustable robust programming approach to efficiently solve the problem. We also analyze the benefits of using dynamic adjustment on scheduling.In the third model, we consider an additional type of uncertainty, namely the uncertainty on the probability distribution of a random parameter. We propose an approach combining stochastic programming and distributionally robust programming, and evaluate its performance.The last model deals with a call center optimization under a global service level constraint instead of period by period constraints. We again allow scheduling decisions to be updated during the middle of the day. We show the advantages of adding the update flexibility, and point out the impact of having a global service level constraint on performance" @default.
- W2274787120 created "2016-06-24" @default.
- W2274787120 creator A5082873429 @default.
- W2274787120 date "2011-07-01" @default.
- W2274787120 modified "2023-09-23" @default.
- W2274787120 title "Staffing and shift-scheduling of call centers under call arrival rate uncertainty" @default.
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