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Call center service process analysis: Bayesian parametric and semi-parametric mixture modeling

Aktekin, Tevfik - In: European Journal of Operational Research 234 (2014) 3, pp. 709-719

theory which gives birth to staffing and the estimation of operating characteristics. Studies investigating uncertainty of … implications of using such models on system performance and staffing are discussed. …

Persistent link: https://www.econbiz.de/10010871231

Personnel scheduling: A literature review

Van den Bergh, Jorne; Beliën, Jeroen; De Bruecker, Philippe - In: European Journal of Operational Research 226 (2013) 3, pp. 367-385

literature review, we identify trends in research on personnel staffing and scheduling, and we indicate which areas should be …

Persistent link: https://www.econbiz.de/10011052528

The roster quality staffing problem – A methodology for improving the roster quality by modifying the personnel structure

Komarudin; Guerry, Marie-Anne; De Feyter, Tim; Vanden … - In: European Journal of Operational Research 230 (2013) 3, pp. 551-562

Quantitative decision support on personnel planning is often restricted to either rostering or staffing. There exist … some approaches in which aspects at the staffing level and the rostering level are treated in a sequential way. Obviously … quality staffing problem and (2) a three-step methodology that enables assessing the appropriateness of a personnel structure …

Persistent link: https://www.econbiz.de/10010679121

Concepts for safety stock determination under stochastic demand and different types of random production yield

Inderfurth, Karl; Vogelgesang, Stephanie - In: European Journal of Operational Research 224 (2013) 2, pp. 293-301

We consider a manufacturer’s stochastic production/inventory problem under periodic review and present methods for safety stock determination to cope with uncertainties that are caused by stochastic demand and different types of yield randomness. Following well-proven inventory control...

Persistent link: https://www.econbiz.de/10010588351

A mixed integer programming model for long term capacity expansion planning: A case study from The Hunter Valley Coal Chain

Singh, Gaurav; Sier, David; Ernst, Andreas T.; … - In: European Journal of Operational Research 220 (2012) 1, pp. 210-224

The Hunter Valley Coal Chain is the largest coal export operation in the world with a throughput in excess of 100 million tonnes per annum (Mtpa). Coal is delivered to the shipping terminal from 40 mines using 27 coal load points spread across the Hunter Valley region. This paper describes an...

Persistent link: https://www.econbiz.de/10010597600

Optimizing splitter and fiber location in a multilevel optical FTTH network

Chardy, M.; Costa, M.-C.; Faye, A.; Trampont, M. - In: European Journal of Operational Research 222 (2012) 3, pp. 430-440

Due to the emergence of bandwidth-requiring services, telecommunication operators are brought to renew their fixed access network, most of them favoring the Fiber To The Home (FTTH) technology. This paper focuses on the optimization of FTTH deployment, which is of prime importance due to the...

Persistent link: https://www.econbiz.de/10010597603

Integer linear programming models for grid-based light post location problem

Noor-E-Alam, Md.; Mah, Andrew; Doucette, John - In: European Journal of Operational Research 222 (2012) 1, pp. 17-30

Selecting optimal location is a key decision problem in business and engineering. This research focuses to develop mathematical models for a special type of location problems called grid-based location problems. It uses a real-world problem of placing lights in a park to minimize the amount of...

Persistent link: https://www.econbiz.de/10010597657

Exact and heuristic methods to maximize network lifetime in wireless sensor networks with adjustable sensing ranges

Cerulli, R.; De Donato, R.; Raiconi, A. - In: European Journal of Operational Research 220 (2012) 1, pp. 58-66

Wireless sensor networks involve many different real-world contexts, such as monitoring and control tasks for traffic, surveillance, military and environmental applications, among others. Usually, these applications consider the use of a large number of low-cost sensing devices to monitor the...

Persistent link: https://www.econbiz.de/10010597700

A spatial optimisation model for multi-period landscape level fuel management to mitigate wildfire impacts

Minas, James P.; Hearne, John W.; Martell, David L. - In: European Journal of Operational Research 232 (2014) 2, pp. 412-422

Elevated fuel loads are contributing to an increase in the occurrence of, and area burned by, severe wildfires in many regions across the globe. In an attempt to reverse this trend, fire and land management agencies are investing in extensive fuel management programs. However, the planning of...

Persistent link: https://www.econbiz.de/10010738133

An analytical comparison of the LP relaxations of integer models for the k-club problem

Almeida, Maria Teresa; Carvalho, Filipa D. - In: European Journal of Operational Research 232 (2014) 3, pp. 489-498

Given an undirected graph G=(V,E), a k-club is a subset of nodes that induces a subgraph with diameter at most k. The k-club problem is to find a maximum cardinality k-club. In this study, we use a linear programming relaxation standpoint to compare integer formulations for the k-club problem....

Persistent link: https://www.econbiz.de/10010738134

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