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作者：Niu, Shun-Chen
作者单位：University of Texas System; University of Texas Dallas
摘要：The Bass Model (BM) is a widely-used framework in marketing for the study of new-product sales growth. Its usefulness as a demand model has also been recognized in production, inventory, and capacity-planning settings. The BM postulates that the cumulative number of adopters of a new product in a large population approximately follows a deterministic trajectory whose growth rate is governed by two parameters that capture (i) an individual consumer's intrinsic interest in the product, and (ii) ...
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作者：Li, Qing; Zheng, Shaohui
作者单位：Hong Kong University of Science & Technology
摘要：We study the joint inventory replenishment and pricing problem for production systems with random demand and yield. More specifically, we analyze the following single-item, periodic-review model. Demands in consecutive periods are independent random variables and their distributions are price sensitive. The production yield is uncertain so that the quantity received from a replenishment is a random variable whose distribution depends on the production quantity. Stockouts are fully backlogged. ...
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作者：Yao Zhao; Simchi-Levi, David
作者单位：Rutgers University System; Rutgers University New Brunswick; Rutgers University Newark; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT)
摘要：We consider the multiproduct and multicomponent assemble-to-order (ATO) systems where the replenishment lead times of the components are stochastic, sequential, and independent of the system state. The component inventories are either controlled by the continuous-time base-stock policies, namely, a base-stock ATO system, or by the continuous-time batch-ordering policies, namely, a batch-ordering ATO system. This paper develops the following results: First, for a base-stock ATO system with a si...
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作者：Humair, Salal; Willems, Sean P.
作者单位：Boston University
摘要：Multiechelon inventory optimization is increasingly being applied by business users as new tools expand the class of network topologies that can be optimized. In this paper, we formalize a topology that we call networks with clusters of commonality (CoC), which captures a large class of real-world supply chains that contain component commonality. Viewed as a modified network, a CDC network is a spanning tree where the nodes in the modified network are themselves maximal bipartite subgraphs in ...
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作者：Hong Wan; Ankenman, Bruce E.; Nelson, Barry L.
作者单位：Purdue University System; Purdue University; Northwestern University
摘要：Screening experiments are performed to eliminate unimportant factors so that the remaining important factors can be more thoroughly studied in later experiments. Sequential bifurcation (SB) is a recent screening method that is well suited for simulation experiments; the challenge is to prove the correctness of the results. This paper proposes controlled sequential bifurcation, a procedure that incorporates a hypothesis-testing approach into SB to control error and power. A detailed algorithm i...
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作者：Codato, Gianni; Fischetti, Matteo
作者单位：University of Padua
摘要：Mixed-integer programs (MIPs) involving logical implications modeled through big-M coefficients are notoriously among the hardest to solve. In this paper, we propose and analyze computationally an automatic problem reformulation of quite general applicability, aimed at removing the model dependency on the big-M coefficients. Our solution scheme defines a master integer linear problem (ILP) with no continuous variables, which contains combinatorial information on the feasible integer variable c...
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作者：Frangioni, Antonio; Gentile, Claudio
作者单位：University of Pisa; Consiglio Nazionale delle Ricerche (CNR); Istituto di Analisi dei Sistemi ed Informatica Antonio Ruberti (IASI-CNR)
摘要：We present a dynamic programming algorithm for solving the single-unit commitment (IUC) problem with ramping constraints and arbitrary convex cost functions. The algorithm is based on a new approach for efficiently solving the single-unit economic dispatch (ED) problem with ramping constraints and arbitrary convex cost functions, improving on previously known ones that were limited to piecewise-linear functions. For simple convex functions, such as the quadratic ones typically used in applicat...
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作者：Yong Tan; Chiang, I. Robert; Mookerjee, Vijay S.
作者单位：University of Washington; University of Washington Seattle; Accenture; University of Texas System; University of Texas Dallas
摘要：Transit and peering arrangements among Internet backbone providers (IBPs) are essential for the global delivery of communication services on the Internet. In addition, to support delay-sensitive applications (e.g., streaming and multimedia applications) it is important for IBPs to maintain high service quality even if the network is congested. One promising approach is to establish interconnection agreements among providers to dynamically trade network capacity. To make such interconnections p...
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作者：Kubzin, M. A.; Strusevich, V. A.
作者单位：University of Greenwich
摘要：We consider the two-machine open shop and two-machine flow shop scheduling problems in which each machine has to be maintained exactly once during the planning period, and the duration of each of these intervals depends on its start time. The objective is to minimize the maximum completion time of all activities to be scheduled. We resolve complexity and approximability issues of these problems. The open shop problem is shown to be polynomially solvable for quite general functions defining the...
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作者：Feng, Qi; Sethi, Suresh P.; Yan, Houmin; Zhang, Hanqin
作者单位：University of Texas System; University of Texas Dallas; University of Texas System; University of Texas Dallas; Chinese University of Hong Kong; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS
摘要：We present a periodic review inventory model with multiple delivery modes. While base-stock policies are optimal for one or two consecutive delivery modes, they are not so otherwise. For multiple consecutive delivery modes, we show that only the fastest two modes have optimal base stocks, and provide a simple counterexample to show that the remaining ones do not. We investigate why the base-stock policy is or is not optimal in different situations. This note is an abridged version of Feng et a...
