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OR Spectrum

Quantitative Approaches in Management

OR Spectrum OnlineFirst articles

25.03.2019 | Regular Article

Model formulations for the capacitated lot-sizing problem with service-level constraints

We present deterministic model formulations for the capacitated lot-sizing problem, including service-level constraints that address both the periodic and cyclic $$\alpha $$ α service levels, as well as the $$\beta $$ β , $$\gamma $$ γ , and …

22.03.2019 | Regular Article

The cafeteria problem: order sequencing and picker routing in on-the-line picking systems

This paper is dedicated to the cafeteria problem: given a single waiter operating multiple counters for different dishes arranged along a line and a set of customers with given subsets of dishes they desire, find a sequence of customers, which may …

25.02.2019 | Regular Article

Controlling distribution conveyors and multiline palletizers: theoretical foundations and online algorithms

We consider the Distribution problem for multiline palletizing systems, which arises in centralized distribution centres, where boxes have to be stacked up from conveyor belts onto pallets with respect to customer orders. The problem asks how to …

09.02.2019 | Regular Article

The train-to-yard assignment problem

The train-to-yard assignment problem (TYAP) pertains to freight consolidation in a large rail transshipment yard—also called a multiple yard—that consists of two sub-yards. Inbound and outbound trains need to be assigned to one or the other …

08.02.2019 | Regular Article

An optimisation model for scheduling the decommissioning of an offshore wind farm

An optimisation model is proposed for scheduling the decommissioning of an offshore wind farm in order to minimise the total cost which is comprised of jack-up vessel, barge (transfer) vessel, inventory, processing and on-land transportation …

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Jointly sponsored by
Gesellschaft fuer Operations Research - The German OR Society
Nederlands Genootschap voor Besliskunde - The Dutch OR Society

OR Spectrum publishes applied and theoretical papers which contribute to Operations Research as a scientific instrument for the development and application of quantitative approaches for problem-solving and decision-making in management. It addresses all persons from university, industry, business and administration interested in innovative applications of quantitative methods as well as in advances in theory and techniques with relevance to practice.
The journal provides an international forum for academics and practitioners from areas such as quantitative management science, mathematical operations research, and related fields of engineering and information systems. It publishes high-quality, original papers belonging to the following types of contributions: Surveys, theoretical papers, application-oriented papers, and case studies. Papers must be written in English. All contributions are reviewed by at least two referees.

Officially cited as: OR Spectrum

2-year Impact Factor 2015: 1,395
5-year Impact Factor 2015: 2,191

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