Stefan Nickel

According to our database, Stefan Nickel authored at least 96 papers between 1997 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2025

50 years of Computers & Operations Research: A bibliometric analysis.

Li Guan, Gilbert Laporte, José M. Merigó, Stefan Nickel, Iman Rahimi, Francisco Saldanha-da-Gama

Comput. Oper. Res., 2025

2024

Metamodel-based dynamic algorithm configuration using artificial neural networks.

Fabian Dunke, Stefan Nickel

Int. J. Gen. Syst., January, 2024

The Value of the Multi-period Solution revisited: When to model time in capacitated location problems.

Hannah Bakker, Stefan Nickel

Comput. Oper. Res., January, 2024

Correction to: Towards a stochastic programming modeling framework for districting.

Antonio Diglio, Stefan Nickel, Francisco Saldanha-da-Gama

Ann. Oper. Res., January, 2024

PostgreSQL: Relational database structures application on capacitated lot-sizing for pharmaceutical tablets manufacturing processes.

Michael Simonis, Stefan Nickel

Softw. Impacts, 2024

2023

Logistics for diagnostic testing: An adaptive decision-support framework.

Hannah Bakker, Viktor Bindewald, Fabian Dunke, Stefan Nickel

Eur. J. Oper. Res., December, 2023

Comparison of different approaches to multistage lot sizing with uncertain demand.

Viktor Bindewald, Fabian Dunke, Stefan Nickel

Int. Trans. Oper. Res., November, 2023

A matheuristic for customized multi-level multi-criteria university timetabling.

Fabian Dunke, Stefan Nickel

Ann. Oper. Res., September, 2023

A simulation-optimization approach for a cyclic production scheme in a tablets packaging process.

Michael Simonis, Stefan Nickel

Comput. Ind. Eng., July, 2023

An alternative approach to address uncertainty in hub location.

Marc Janschekowitz, Gita Taherkhani, Sibel A. Alumur, Stefan Nickel

OR Spectr., June, 2023

A system dynamics model application to operating room planning and management.

Shiva Faeghi, Kunibert Lennerts, Stefan Nickel

J. Simulation, January, 2023

2022

A multi-method approach to scheduling and efficiency analysis in dual-resource constrained job shops with processing time uncertainty.

Fabian Dunke, Stefan Nickel

Comput. Ind. Eng., 2022

Correction to: Exact distributional analysis of online algorithms with lookahead.

Fabian Dunke, Stefan Nickel

4OR, 2022

2021

Modeling a pre-hospital emergency medical service using hybrid simulation and a machine learning approach.

David Olave-Rojas, Stefan Nickel

Simul. Model. Pract. Theory, 2021

Online optimization with gradual look-ahead.

Fabian Dunke, Stefan Nickel

Oper. Res., 2021

Managing the intake of new patients into a physician panel over time.

Anne Zander, Stefan Nickel, Peter T. Vanberkel

Eur. J. Oper. Res., 2021

A two-phase sequential approach to design bioenergy supply chains under uncertainty and social concerns.

Sobhan Razm, Alexandre Dolgui, Ramzi Hammami, Nadjib Brahimi, Stefan Nickel, Hadi Sahebi

Comput. Chem. Eng., 2021

Exact distributional analysis of online algorithms with lookahead.

Fabian Dunke, Stefan Nickel

4OR, 2021

2020

Neural networks for the metamodeling of simulation models with online decision making.

Fabian Dunke, Stefan Nickel

Simul. Model. Pract. Theory, 2020

A data-driven methodology for the automated configuration of online algorithms.

Fabian Dunke, Stefan Nickel

Decis. Support Syst., 2020

Research Data Management as an Integral Part of the Research Process of Empirical Disciplines Using Landscape Ecology as an Example.

Winfried Schröder, Stefan Nickel

Data Sci. J., 2020

Towards a stochastic programming modeling framework for districting.

Antonio Diglio, Stefan Nickel, Francisco Saldanha-da-Gama

Ann. Oper. Res., 2020

Decentralized patient-centric data management for sharing IoT data streams.

Markus Lücking, Raphael Manke, Markus Schinle, Lukas Kohout, Stefan Nickel, Wilhelm Stork

Proceedings of the 2020 International Conference on Omni-layer Intelligent Systems, 2020

2019

Day-ahead and online decision-making for collaborative on-site logistics.

Fabian Dunke, Stefan Nickel

J. Simulation, 2019

A multi-period multi-criteria districting problem applied to primary care scheme with gradual assignment.

Seda Yanik, Jörg Kalcsics, Stefan Nickel, Burçin Bozkaya

Int. Trans. Oper. Res., 2019

The air cargo load planning problem - a consolidated problem definition and literature review on related problems.

Felix Brandt, Stefan Nickel

Eur. J. Oper. Res., 2019

A multi-objective mathematical model to redesign of global sustainable bioenergy supply network.

Sobhan Razm, Stefan Nickel, Hadi Sahebi

Comput. Chem. Eng., 2019

2018

Time traps in supply chains: Is optimal still good enough?

Fabian Dunke, Iris Heckmann, Stefan Nickel, Francisco Saldanha-da-Gama

Eur. J. Oper. Res., 2018

A branch-and-price algorithm for the scheduling of customer visits in the context of multi-period service territory design.

Matthias Bender, Jörg Kalcsics, Stefan Nickel, Martin Pouls

Eur. J. Oper. Res., 2018

Improving Quality of Care in a Multidisciplinary Emergency Department by the Use of simulation Optimization: Preliminary Results.

Li Zhang, Clemens Kill, Andreas Jerrentrup, Ferdinand Baer, Boris Amberg, Stefan Nickel

Proceedings of the 2018 Winter Simulation Conference, 2018

2017

Optimization problems with flexible objectives: A general modeling approach and applications.

Stefan Nickel, Sebastian Velten

Eur. J. Oper. Res., 2017

Evaluating the quality of online optimization algorithms by discrete event simulation.

Fabian Dunke, Stefan Nickel

Central Eur. J. Oper. Res., 2017

2016

Scheduling policies for multi-period services.

Cristina Núñez-del-Toro, Elena Fernández, Jörg Kalcsics, Stefan Nickel

Eur. J. Oper. Res., 2016

Multi-period hub network design problems with modular capacities.

Sibel A. Alumur, Stefan Nickel, Francisco Saldanha-da-Gama, Yusuf Seçerdin

Ann. Oper. Res., 2016

Balancing Effort and Plan Quality: Tactical Supply Chain Planning in the Chemical Industry.

Annika Vernbro, Iris Heckmann, Stefan Nickel

Proceedings of the Operations Research Proceedings 2016, Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Helmut Schmidt University Hamburg, Germany, August 30, 2016

Vorwort.

Thomas Setzer, Stefan Nickel, Christof Weinhardt, Ralph Grothmann, Thomas A. Runkler, Ralf Gitzel, Hansjörg Fromm

Proceedings of the Multikonferenz Wirtschaftsinformatik, 2016

2015

Several 2-facility location problems on networks with equity objectives.

Jörg Kalcsics, Stefan Nickel, Justo Puerto, Antonio M. Rodríguez-Chía

Networks, 2015

An integrated approach for planning a long-term care network with uncertainty, strategic policy and equity considerations.

Teresa Cardoso, Mónica Duarte Oliveira, Ana Paula F. D. Barbosa-Póvoa, Stefan Nickel

Eur. J. Oper. Res., 2015

Improving Hospital-wide Patient Scheduling Decisions by Clinical Pathway Mining.

Daniel Gartner, Ines V. Arnolds, Stefan Nickel

Proceedings of the MEDINFO 2015: eHealth-enabled Health, 2015

2014

Cooperative covering problems on networks.

Igor Averbakh, Oded Berman, Dmitry Krass, Jörg Kalcsics, Stefan Nickel

Networks, 2014

The multicriteria p-facility median location problem on networks.

Jörg Kalcsics, Stefan Nickel, Miguel A. Pozo, Justo Puerto, Antonio M. Rodríguez-Chía

Eur. J. Oper. Res., 2014

Strategic and tactical mathematical programming models within the crude oil supply chain context - A review.

Hadi Sahebi, Stefan Nickel, Jalal Ashayeri

Comput. Chem. Eng., 2014

Vorwort.

Thomas Setzer, Stefan Nickel, Ralf Gitzel, Thomas A. Runkler, Christof Weinhardt

Proceedings of the Multikonferenz Wirtschaftsinformatik, 2014

2012

Stochastic analysis of ordered median problems.

Zvi Drezner, Stefan Nickel, Hans-Peter Ziegler

J. Oper. Res. Soc., 2012

Mid-term and short-term planning support for home health care services.

Stefan Nickel, Michael Schröder, Jörg Steeg

Eur. J. Oper. Res., 2012

Multi-period reverse logistics network design.

Sibel A. Alumur, Stefan Nickel, Francisco Saldanha-da-Gama, Vedat Verter

Eur. J. Oper. Res., 2012

Multiperiod Location-Routing with Decoupled Time Scales.

Maria Albareda-Sambola, Elena Fernández, Stefan Nickel

Eur. J. Oper. Res., 2012

Using simulation in hospital layout planning.

Ines V. Arnolds, Stefan Nickel, Sara Shashaani, Christian Wernz

Proceedings of the Winter Simulation Conference, 2012

2011

Impact of IT-supported clinical pathways on medical staff satisfaction. A prospective longitudinal cohort study.

Jochen Schuld, Thilo Schäfer, Stefan Nickel, Peter Jacob, Martin K. Schilling, Sven Richter

Int. J. Medical Informatics, 2011

Scheduling steel plates on a roller furnace.

Eric Ebermann, Stefan Nickel

Proceedings of the Operations Research Proceedings 2011, Selected Papers of the International Conference on Operations Research (OR 2011), August 30, 2011

2010

Dynamic transportation of patients in hospitals.

Alexandre Beaudry, Gilbert Laporte, M. Teresa Melo, Stefan Nickel

OR Spectr., 2010

An extended covering model for flexible discrete and equity location problems.

Alfredo Marín, Stefan Nickel, Sebastian Velten

Math. Methods Oper. Res., 2010

Extensions to the continuous ordered median problem.

Jochen Krebs, Stefan Nickel

Math. Methods Oper. Res., 2010

A novel maximum dispersion territory design model arising in the implementation of the WEEE-directive.

Elena Fernández, Jörg Kalcsics, Stefan Nickel, Roger Z. Ríos-Mercado

J. Oper. Res. Soc., 2010

Distribution systems design with role dependent objectives.

Jörg Kalcsics, Stefan Nickel, Justo Puerto, Antonio M. Rodríguez-Chía

Eur. J. Oper. Res., 2010

The capacitated single-allocation hub location problem revisited: A note on a classical formulation.

Isabel Correia, Stefan Nickel, Francisco Saldanha-da-Gama

Eur. J. Oper. Res., 2010

2009

Multifacility and Restricted Location Problems.

Horst W. Hamacher, Stefan Nickel

Proceedings of the Encyclopedia of Optimization, Second Edition, 2009

Logistics network design.

Stefan Nickel, Francisco Saldanha-da-Gama

OR Spectr., 2009

Constructing a DC decomposition for ordered median problems.

Zvi Drezner, Stefan Nickel

J. Glob. Optim., 2009

Bringing Robustness to Patient Flow Management Through Optimized Patient Transports in Hospitals.

Thomas Hanne, M. Teresa Melo, Stefan Nickel

Interfaces, 2009

Facility location and supply chain management - A review.

M. Teresa Melo, Stefan Nickel, Francisco Saldanha-da-Gama

Eur. J. Oper. Res., 2009

Solving the ordered one-median problem in the plane.

Zvi Drezner, Stefan Nickel

Eur. J. Oper. Res., 2009

A flexible model and efficient solution strategies for discrete location problems.

Alfredo Marín, Stefan Nickel, Justo Puerto, Sebastian Velten

Discret. Appl. Math., 2009

The Ordered Gradual Covering Location Problem on a Network.

Oded Berman, Jörg Kalcsics, Dmitry Krass, Stefan Nickel

Discret. Appl. Math., 2009

Location Theory - A Unified Approach.

Stefan Nickel, Justo Puerto

Springer, ISBN: 978-3-540-24321-2, 2009

2008

Dynamic supply chain design with inventory.

Yolanda Hinojosa, Jörg Kalcsics, Stefan Nickel, Justo Puerto, Sebastian Velten

Comput. Oper. Res., 2008

New trends in locational analysis.

S. Arifusalem, Stefano Benati, Brian Boffey, Teresa Cáceres, Dietmar Cieslik, Zvi Drezner, Horst A. Eiselt, Ioannis Giannikos, Horst W. Hamacher, John M. Hodgson, Jörg Kalcsics, Kathrin Klamroth, Olivier Klopfenstein, Mercedes Landete, Maria Cruz López de los Mozos Martin, Alfredo Marín, Juan A. Mesa, Malick M. Ndiaye, Stefan Nickel, Blas Pelegrín

Comput. Oper. Res., 2008

2007

Optimal Control Strategies for Incoming Inspection.

Stefan Nickel, Sebastian Velten, Hans-Peter Ziegler

Proceedings of the Operations Research, 2007

Reliability Models for the Uncapacitated Facility Location Problem with User Preferences.

Rodrigo Herrera, Jörg Kalcsics, Stefan Nickel

Proceedings of the Operations Research, 2007

A Benders Decomposition for Hub Location Problems Arising in Public Transport.

Shahin Gelareh, Stefan Nickel

Proceedings of the Operations Research, 2007

2006

Dynamic multi-commodity capacitated facility location: a mathematical modeling framework for strategic supply chain planning.

M. Teresa Melo, Stefan Nickel, Francisco Saldanha-da-Gama

Comput. Oper. Res., 2006

Exact procedures for solving the discrete ordered median problem.

Natashia Boland, Patricia Domínguez-Marín, Stefan Nickel, Justo Puerto

Comput. Oper. Res., 2006

2005

A multiobjective evolutionary algorithm for scheduling and inspection planning in software development projects.

Thomas Hanne, Stefan Nickel

Eur. J. Oper. Res., 2005

Heuristic Procedures for Solving the Discrete Ordered Median Problem.

Patricia Domínguez-Marín, Stefan Nickel, Pierre Hansen, Nenad Mladenovic

Ann. Oper. Res., 2005

An LP-based Heuristic Approach for Strategic Supply Chain Design.

Rafael Velásquez, M. Teresa Melo, Stefan Nickel

Proceedings of the Operations Research Proceedings 2005, 2005

2004

Adapting polyhedral properties from facility to hub location problems.

Horst W. Hamacher, Martine Labbé, Stefan Nickel, Tim Sonneborn

Discret. Appl. Math., 2004

2003

Multifacility ordered median problems on networks: A further analysis.

Jörg Kalcsics, Stefan Nickel, Justo Puerto

Networks, 2003

An Approach to Location Models Involving Sets as Existing Facilities.

Stefan Nickel, Justo Puerto, Antonio M. Rodríguez-Chía

Math. Oper. Res., 2003

Robust facility location.

Emilio Carrizosa, Stefan Nickel

Math. Methods Oper. Res., 2003

Geographic Information Systems Support for Monitoring Environmental Impacts Caused by Deep Hard Coal Mining.

Rainer Roosmann, Wolfgang Busch, Julita Gorczyk, Frank Mauersberger, Stefan Nickel, Peter Vosen

Proceedings of the 17th International Conference Informatics for Environmental Protection, 2003

2002

Algorithmic results for ordered median problems.

Jörg Kalcsics, Stefan Nickel, Justo Puerto, Arie Tamir

Oper. Res. Lett., 2002

Book Reviews.

Stefan Nickel

Math. Methods Oper. Res., 2002

On the number of criteria needed to decide Pareto optimality.

Matthias Ehrgott, Stefan Nickel

Math. Methods Oper. Res., 2002

Multicriteria Semi-Obnoxious Network Location Problems (MSNLP) with Sum and Center Objectives.

Horst W. Hamacher, Martine Labbé, Stefan Nickel, Anders J. V. Skriver

Ann. Oper. Res., 2002

Simulation-Based Risk Reduction for Planning Inspections.

Holger Neu, Thomas Hanne, Jürgen Münch, Stefan Nickel, Andreas Wirsen

Proceedings of the Product Focused Software Process Improvement, 2002

Mathematical Programming Models for Strategic Supply Chain Planning and Design.

Jörg Kalcsics, M. Teresa Melo, Stefan Nickel

Proceedings of the Operations Research Proceedings 2002, 2002

2001

Error bounds for the approximative solution of restricted planar location problems.

Barbara Käfer, Stefan Nickel

Eur. J. Oper. Res., 2001

On bisectors for different distance functions.

Christian Icking, Rolf Klein, Lihong Ma, Stefan Nickel, Ansgar Weißler

Discret. Appl. Math., 2001

2000

A flexible approach to location problems.

Antonio M. Rodríguez-Chía, Stefan Nickel, Justo Puerto, Francisco R. Fernández

Math. Methods Oper. Res., 2000

Solving Nonconvex Planar Location Problems by Finite Dominating Sets.

Emilio Carrizosa, Horst W. Hamacher, Rolf Klein, Stefan Nickel

J. Glob. Optim., 2000

1999

A unified approach to network location problems.

Stefan Nickel, Justo Puerto

Networks, 1999

Multicriteria network location problems with sum objectives.

Horst W. Hamacher, Martine Labbé, Stefan Nickel

Networks, 1999

A Geometric Approach to Global Optimization.

Stefan Nickel, Anita Schöbel

J. Glob. Optim., 1999

Geometric Methods to Solve Max-Ordering Location Problems.

Matthias Ehrgott, Horst W. Hamacher, Stefan Nickel

Discret. Appl. Math., 1999

1997

Bicriteria and restricted 2-Facility Weber Problems.

Stefan Nickel

Math. Methods Oper. Res., 1997

Weber's Problem with Attraction and Repulsion under Polyhedral Gauges.

Stefan Nickel, Eva-Maria Dudenhöffer

J. Glob. Optim., 1997