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, A broadcast communication network that interconnects multiple hosts N considered. A job generated by a host is either generic, m which case It can be processed at any of the hosts in the network, or dedicated, m which case it must be processed at the host from which it originates. It is assumed that each host can generate several types of dedicated jobs,(More)
The subgradient method is frequently used to optimize dual functions in Lagrangian relaxation for separable integer programming problems. In the method, all subproblems must be optimally solved to obtain a subgradient direction. In this paper, the " surrogate subgradient method " is developed, where a proper direction can be obtained without optimally(More)
We study an assemble-to-order system with stochastic leadtimes for component replenishment. There are multiple product types, of which orders arrive at the system following batch Poisson processes. Base-stock policies are used to control component inventories. We analyze the system as a set of queues driven by a common, multiclass batch Poisson input, and(More)
This study is motivated by a process-reengineering problem in PC manufacturing, i.e., to move from a build-to-stock operation that is centered around end-product (machine type model) inventory , towards a configure-to-order (CTO) operation that eliminates end-product inventory — in fact, CTO has made irrelevant the whole notion of pre-configured machine(More)