Zobrazeno 1 - 10
of 151
pro vyhledávání: '"H. Edwin Romeijn"'
Publikováno v:
SIAM Journal on Optimization. 31:2307-2339
Conditional gradient methods have attracted much attention in both machine learning and optimization communities recently. These simple methods can guarantee the generation of sparse solutions. In addition, without the computation of full gradients,
Autor:
H. Edwin Romeijn, Zohar M.A. Strinka
Publikováno v:
Operations Research. 66:834-848
We study a class of problems with both binary selection decisions and associated continuous choices that result in stochastic rewards and costs. The rewards are received based on the decision maker’s selection, and the costs depend both on the deci
Publikováno v:
Operations Research. 65:1029-1042
We consider discounted Markov decision processes (MDPs) with countably-infinite state spaces, finite action spaces, and unbounded rewards. Typical examples of such MDPs are inventory management and queueing control problems in which there is no speci
Autor:
Hesheng Wang, Martha M. Matuszak, Yue Cao, Marina A. Epelman, Victor W. Wu, H. Edwin Romeijn, Mary Feng, Randall K. Ten Haken
Publikováno v:
Physics in Medicine and Biology. 61:6465-6484
Liver stereotactic body radiation therapy (SBRT) patients differ in both pre-treatment liver function (e.g. due to degree of cirrhosis and/or prior treatment) and radiosensitivity, leading to high variability in potential liver toxicity with similar
Publikováno v:
Naval Research Logistics (NRL). 63:367-373
The warehouse problem with deterministic production cost, selling prices, and demand was introduced in the 1950s and there is a renewed interest recently due to its applications in energy storage and arbitrage. In this paper, we consider two extensio
Publikováno v:
European Journal of Operational Research, 252(3), 815-828. Elsevier
In a decentralized two-stage supply chain where a supplier serves a retailer who, in turn, serves end customers, operations decisions based on local incentives often lead to suboptimal system performance. Operating decisions based on local incentives
Publikováno v:
European Journal of Operational Research, 244(3), 881-891. Elsevier
We consider the economic lot-sizing problem with perishable items (ELS-PI), where each item has a deterministic expiration date. Although all items in stock are equivalent regardless of procurement or expiration date, we allow for an allocation mecha
Publikováno v:
Naval Research Logistics (NRL). 61:386-402
In this paper we study a Bi-Objective Economic Lot-Sizing problem with applications, among others, in green logistics. The first objective aims to minimize the total lot-sizing costs including production and inventory holding costs, while the second
Publikováno v:
INFORMS Journal on Computing. 26:290-302
This paper considers a very general class of customer-to-resource assignment problems relevant to a variety of manufacturing contexts. This problem class addresses settings in which subsets of customer types share resource capacities as well as a fix
Publikováno v:
Operations Research Letters. 42:238-245
We study infinite-horizon nonstationary Markov decision processes with discounted cost criterion, finite state space, and side constraints. This problem can equivalently be formulated as a countably infinite linear program (CILP), a linear program wi