Department of Industrial Engineering
Recent Submissions

A spanning tree approach to the absolute pcenter problem
(Elsevier, 200012)We consider the absolute pcenter problem on a general network and propose a spanning tree approach which is motivated by the fact that the problem is NPhard on general networks but solvable in polynomial time on trees. ... 
Hybrid Petrinets for Modeling and Performance Evaluation of Supply Chains
(Taylor & Francis, 2011)Modelling and analysis of complex and coordinated supply chains is a crucial task due to its inherent complexity and uncertainty. Therefore, the current research direction is to devise an efficient modelling technique ... 
Multisource Bayesian sequential binary hypothesis testing problem
(Springer, 201212)We consider the problem of testing two simple hypotheses about unknown local characteristics of several independent Brownian motions and compound Poisson processes. All of the processes may be observed simultaneously as ... 
Hierarchical multimodal hub location problem with timedefinite deliveries
(Elsevier, 201211)Hierarchical multimodal hub location problem is a costminimizing hub covering problem where two types of hubs and hub links, accounting for ground and air transportation, are to be established, while ensuring timedefinite ... 
Asymptotically optimal Bayesian sequential change detection and identification rules
(Springer, 20130412)We study the joint problem of sequential change detection and multiple hypothesis testing. Suppose that the common distribution of a sequence of i.i.d. random variables changes suddenly at some unobservable time to one ... 
Cost and emission impacts of virtual power plant formation in plugin hybrid electric vehicle penetrated networks
(Elsevier, 20131001)With increasing interest in alternative energy resources and technologies, mass penetration of PHEVs (plugin hybrid vehicles) into the electricity grid and widespread utilization of DERs (distributed energy resources) ... 
A Continuous Review ReplenishmentDisposal Policy for an Inventory System with autonomous supply and fixed disposal costs
(Elsevier, 20081016)In this study, we analyze an inventory system facing stochastic external demands and an autonomous supply (independent return flow) in the presence of fixed disposal costs and positive lead times under a continuous review ... 
Optimal Structural Results for AssembletoOrder Generalized MSystmes
(INFORMS, 2014)We consider an assembletoorder generalized Msystem with multiple components and multiple products, batch ordering of components, random lead times, and lost sales. We model the system as an in nitehorizon Markov ... 
Backtracking and exchange of information: Methods to enhance a beam search algorithm for assembly line scheduling
(Elsevier, 20080501)Beam search (BS) is used as a heuristic to solve various combinatorial optimization problems, ranging from scheduling to assembly line balancing. In this paper, we develop a backtracking and an exchangeofinformation (EOI) ... 
A new dominance rule to minimize total weighted tardiness with unequal release dates
(Elsevier, 20011201)We present a new dominance rule by considering the timedependent orderings between each pair of jobs for the single machine total weighted tardiness problem with release dates. The proposed dominance rule provides a ... 
Agebased vs. stock level control policies for a perishable inventory system
(Elsevier, 20011016)In this study, we investigate the impact of modified lotsizereorder control policy for perishables which bases replenishment decisions on both the inventory level and the remaining lifetimes of items in stock. We derive ... 
Scheduling with tool changes to minimize total completion time under controllable machining conditions
(Elsevier, 200707)Scheduling under controllable machining conditions has been studied for some time. Scheduling with tool changes, particularly due to tool wear, has just begun to receive attention. Though machining conditions impact tool ... 
Multimodal hub location and hub network design
(Elsevier, 201212)Through observations from real life hub networks, we introduce the multimodal hub location and hub network design problem. We approach the hub location problem from a network design perspective. In addition to the location ... 
Considering Manufacturing Cost and Scheduling Performance on a CNC Turning Machine
(Elsevier, 20070216)A well known industry application that allows controllable processing times is the manufacturing operations on CNC machines. For each turning operation as an example, there is a nonlinear relationship between the manufacturing ... 
An anticipative scheduling approach with controllable processing times
(Elsevier, 201006)In practice, machine schedules are usually subject to disruptions which have to be repaired by reactive scheduling decisions. The most popular predictive approach in project management and machine scheduling literature is ... 
Analysis and applications of replenishment problems under stepwise transportation costs and generalized wholesale prices
(Elsevier, 201211)In this study, we analyze the replenishment decision of a buyer with the objective of maximizing total expected profits. The buyer faces stepwise freight costs in inbound transportation and a hybrid wholesale price ... 
Discretetime pricing and optimal exercise of American perpetual warrants in the geometric random walk model
(SpringerVerlag, 2013)An American option (or, warrant) is the right, but not the obligation, to purchase or sell an underlying equity at any time up to a predetermined expiration date for a predetermined amount. A perpetual American option ... 
A class of joint production and transportation planning problems under different delivery policies
(Elsevier, 201301)This paper examines a manufacturer’s integrated planning problem for the production and the delivery of a set of orders. The manufacturer in this setting can use two vehicle types for outbound shipments. The first type ... 
Satisfying duedates in the presence of sequence dependent family setups with a special comedown structure
(Elsevier, 20071222)This paper addresses a static, njob, singlemachine scheduling problem with sequence dependent family setups. The setup matrix follows a special structure where a constant setup is required only if a job from a smaller ... 
Huber approximation for the nonlinear ℓ1 problem
(Elsevier, 20060316)The smooth Huber approximation to the nonlinear ‘1 problem was proposed by Tishler and Zang (1982), and further developed in Yang (1995). In the present paper, we use the ideas of Gould (1989) to give a new algorithm ...