KSRI@KIT
Nickel

Prof. Dr. Stefan Nickel

  • Englerstr. 11
    Gebäude 11.40, 2. OG
    D-76128 Karlsruhe

Activities

Stefan Nickel obtained his PhD in Mathematics at the Technical University of Kaiserslautern, Germany in 1995. From 1995 to 2003 he was first assistant and then associate professor in mathematics at the Technical University of Kaiserslautern. After a full professor position at the Saarland University (Chair of Operations Research and Logistics) from 2003 to 2009 he became one of the directors of the Institute for Operations Research at the KIT in April 2009. In 2011 he became director at Forschungszentrum Informatik (FZI) and Karlsruhe Service Research Institute (KSRI).

Stefan Nickel is also member of the scientific advisory board, as well as the management board, of the Fraunhofer Institute for Applied Mathematics (ITWM) in Kaiserslautern, Germany. He has authored or co-authored four books as well as more than 80 scientific articles mainly in the area of location, supply chain management, health care and logistics.

In addition he had numerous research contracts with well-known industrial companies (e.g. BASF, Lufthansa, Miele, SAP). Stefan Nickel is editor-in-chief of Computers & Operations Research since October 2006 and member of the editorial board of Health Care Management Science.

He has coordinated the Health Care working group within the German OR society (GOR) and was president of the GOR until 2014. Moreover he was the speaker of the EURO working group on locational analysis.

 

Research focus:

  • Location planning
  • Area planning
  • Health care
  • Online optimization

Publications


2020
Conference Papers
Decentralized patient-centric data management for sharing IoT data streams.
Lucking, M.; Manke, R.; Schinle, M.; Kohout, L.; Nickel, S.; Stork, W.
2020. 2020 International Conference on Omni-layer Intelligent Systems (COINS), August 31 - September 2, 2020, Barcelona, Spain, IEEE. doi:10.1109/COINS49042.2020.9191653
2019
Journal Articles
A multi-period multi-criteria districting problem applied to primary care scheme with gradual assignment.
Yanık, S.; Kalcsics, J.; Nickel, S.; Bozkaya, B.
2019. International transactions in operational research, 26 (5), 1676–1697. doi:10.1111/itor.12633
2018
Book Chapters
An Innovative Concept for Teaching Operations Research Applied to Health Care.
Reuter-Oppermann, M.; Zander, A.; Nickel, S.
2018. Advances in Operations Research Education. Ed.: J. Beliën, 95–105, Springer International Publishing, Cham, CH. doi:10.1007/978-3-319-74104-8_7
Journal Articles
Ascent and descent cones of ordered median block functions.
Grzybowski, J.; Kalcsics, J.; Nickel, S.; Pallaschke, D.; Urbański, R.
2018. Optimization, 67 (5), 507–522. doi:10.1080/02331934.2018.1429432
Modeling congestion and service time in hub location problems.
Alumur, S. A.; Nickel, S.; Rohrbeck, B.; Saldanha-da-Gama, F.
2018. Applied mathematical modelling, 55, 13–32. doi:10.1016/j.apm.2017.10.033
2016
Journal Articles
Ambulance location under stochastic demand: A sampling approach.
Nickel, S.; Reuter-Oppermann, M.; Saldanha-da-Gama, F.
2016. Operations research for health care, 8, 24–32. doi:10.1016/j.orhc.2015.06.006
Scheduling policies for multi-period services.
Nunez-del-Toro, C.; Fernandez, E.; Kalcsics, J.; Nickel, S.
2016. European journal of operational research, 251 (3), 751–770. doi:10.1016/j.ejor.2015.12.002
Evaluating the quality of online optimization algorithms by discrete event simulation.
Dunke, F.; Nickel, S.
2016. Central European journal of operations research, 25 (4), 831–858. doi:10.1007/s10100-016-0455-6
Time traps in supply chains: Is optimal still good enough?.
Dunke, F.; Heckmann, I.; Nickel, S.; Saldanha-da-Gama, F.
2016. European journal of operational research. doi:10.1016/j.ejor.2016.07.016
Optimizing the allocation of fast charging infrastructure along the German autobahn.
Jochem, P.; Brendel, C.; Reuter-Oppermann, M.; Fichtner, W.; Nickel, S.
2016. Journal of business economics, 86 (5), 513–535. doi:10.1007/s11573-015-0781-5Full textFull text of the publication as PDF document
Conference Papers
A Modeling Framework for Stochastic Multi-Period Capacitated Multiple Allocation Hub Location.
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
2016. ILS : 6th International Conference on Information Systems, Logistics and Supply Chain, June 1-4, 2016 
The Risk-Aware Multi-Period Capacitated Plant Location Problem (CPLP-Risk).
Heckmann, I.; Nickel, S.; Saldanha-da-Gama, F.
2016. 6th International Conference on Information Systems, Logistics and Supply Chain (ILS), Bordeaux, France, June 1–4, 2016, 1–6 
2015
Journal Articles
Multi-period hub network design problems with modular capacities.
Alumur, S. A.; Nickel, S.; Saldanha-da-Gama, F.; Seçerdin, Y.
2015. Annals of operations research, 246 (1-2), 289–312. doi:10.1007/s10479-015-1805-9
Multi-period hub location problems in transportation.
Gelareh, S.; Monemi, R. N.; Nickel, S.
2015. Transportation research / E, 75, 67–94. doi:10.1016/j.tre.2014.12.016
Several 2-facility location problems on networks with equity objectives.
Kalcsics, J.; Nickel, S.; Puerto, J.; Rodriguez-Chia, A. M.
2015. Networks, 65 (1), 1–9. doi:10.1002/net.21568
An integrated approach for planning a long-term care network with uncertainty, strategic policy and equity considerations.
Cardoso, T.; Oliveira, M. D.; Barbósa-Póvoa, A. P. F. D.; Nickel, S.
2015. European Journal of Operational Research, 247 (1), 321–334. doi:10.1016/j.ejor.2015.05.074
On topological types of ordered median functions.
Grzybowski, J.; Nickel, S.; Pallaschke, D.; Urbański, R.; Kalcsics, J.
2015. Optimization, 64 (1), 149–160. doi:10.1080/02331934.2014.883512
Joint venture formation and partner selection in upstream crude oil section: Goal programming application.
Sahebi, H.; Nickel, S.; Ashayeri, J.
2015. International Journal of Production Research, 53 (10), 3047–3061. doi:10.1080/00207543.2014.970708
On max-min representations of ordered median functions.
Grzybowski, J.; Kalcsics, J.; Nickel, S.; Pallaschke, D.; Urbanski, R.
2015. Optimization, 64 (2), 339–348. doi:10.1080/02331934.2012.750322
2014
Book Chapters
Modellierung und Planung von Dienstleistungen im Rettungswesen mit Verfahren des Operations Research.
Reuter, M.; Rashid, A.; Nickel, S.
2014. Dienstleistungsmodellierung 2012 - Product-Service Systems und Produktivität. Hrsg.: O. Thomas, 291–304, Springer, Wiesbaden. doi:10.1007/978-3-658-00863-5_14
Journal Articles
Environmentally conscious design of upstream crude oil supply chain.
Sahebi, H.; Nickel, S.; Ashayeri, J.
2014. Industrial and Engineering Chemistry Research, 53 (28), 11501–11511. doi:10.1021/ie403492c
Cooperative covering problems on networks.
Averbakh, I.; Berman, O.; Krass, D.; Kalcsics, J.; Nickel, S.
2014. Networks, 63 (4), 334–349. doi:10.1002/net.21549
The multicriteria p-facility median location problem on networks.
Kalcsics, J.; Nickel, S.; Pozo, M. A.; Puerto, J.; Rodríguez-Chía, A. M.
2014. European journal of operational research, 235 (3), 484–493. doi:10.1016/j.ejor.2014.01.003
Journal Article Reviews
2013
Book Chapters
Anwendung von OR- Methoden für Planungsaufgaben in einer Strahlenklinik.
Arnolds, I. V.; Nickel, S.; Reuter, M.
2013. Management science : Modelle und Methoden zur quantitativen Entscheidungsunterstützung; Festschrift zum 60. Geburtstag von Brigitte Werners. Hrsg.: K. Armborst, 69–88, Kovač, Hamburg 
Books
Models for ambulance planning on the strategic and the tactical level.
van Essen, J. T.; Hurink, J. L.; Nickel, S.; Reuter, M.
2013. TU Eindhoven, Research School for Operations Management and Logistics (BETA), Eindhoven 
Journal Articles
The maximum dispersion problem.
Fernandez, E.; Kalcsics, J.; Nickel, S.
2013. Omega, 41 (4), 721–730. doi:10.1016/j.omega.2012.09.005
Multi-period layout planning for hospital wards.
Arnolds, I. V.; Nickel, S.
2013. Socio-Economic Planning Sciences, 47 (3), 220–237. doi:10.1016/j.seps.2013.02.001
2012
Journal Articles
Mid-term and short-term planning support for home health care services.
Nickel, S.; Schröder, M.; Steeg, J.
2012. European Journal of Operational Research, 219 (3), 574–587. doi:10.1016/j.ejor.2011.10.042
A tabu search heuristic for redesigning a multi-echelon supply chain network over a planning horizon.
Melo, M. T.; Nickel, S.; Saldanha-Da-Gama, F.
2012. International Journal of Production Economics, 136 (1), 218–230. doi:10.1016/j.ijpe.2011.11.022
Stochastic analysis of ordered median problems.
Drezner, Z.; Nickel, S.; Ziegler, H.-P.
2012. Journal of the Operational Research Society, 63 (11), 1578–1588. doi:10.1057/jors.2012.2
Modeling the demand for long-term care services under uncertain information.
Cardoso, T.; Oliveira, M. D.; Barbosa-Povoa, A.; Nickel, S.
2012. Health Care Management Science, 15 (4), 385–412. doi:10.1007/s10729-012-9204-0
Multi-period reverse logistics network design.
Alumur, S. A.; Nickel, S.; Saldanha-Da-Gama, F.; Verter, V.
2012. European Journal of Operational Research, 220 (1), 67–78. doi:10.1016/j.ejor.2011.12.045
Hub location under uncertainty.
Alumur, S. A.; Nickel, S.; Saldanha-da-Gama, F.
2012. Transportation Research Part B: Methodological, 46 (4), 529–543. doi:10.1016/j.trb.2011.11.006
Multiperiod location-routing with decoupled time scales.
Albareda-Sambola, M.; Fernandez, E.; Nickel, S.
2012. European Journal of Operational Research, 217 (2), 248–258. doi:10.1016/j.ejor.2011.09.022
Conference Papers
Scheduling steel plates on a roller furnace.
Ebermann, E.; Nickel, S.
2012. Operations Research Proceedings 2011 - Selected Papers of the International Conference on Operations Research (OR’11), Zürich, Schweiz, August 30 - September 2, 2011. Ed.: D. Klatte, 389–394, Springer, Berlin. doi:10.1007/978-3-642-29210-1_62
2011
Books
Operations Research.
Nickel, S.; Stein, O.; Waldmann, K.-H.
2011. Springer, Berlin 
Journal Articles
Impact of IT-supported clinical pathways on medical staff satisfaction : A prospective longitudinal cohort study.
Schuld, J.; Schäfer, T.; Nickel, S.; Jacob, P.; Schilling, M. K.; Richter, S.
2011. International journal of medical informatics, 80 (3), 151–156. doi:10.1016/j.ijmedinf.2010.10.012
Hub location problems in transportation networks.
Gelareh, S.; Nickel, S.
2011. Transportation research / E, 47 (6), 1092–1111. doi:10.1016/j.tre.2011.04.009
Hub and spoke network design with single-assignment, capacity decisions and balancing requirements.
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
2011. Applied mathematical modelling, 35 (10), 4841–4851. doi:10.1016/j.apm.2011.03.046
Ordered Median Functions and Symmetries.
Grzybowski, J.; Nickel, S.; Pallaschke, D.; Urbanski, R.
2011. Optimization, 60 (7-9), 801–811 
2010
Journal Articles
An extended covering model for flexible discrete and equity location problems.
Marin, A.; Nickel, S.; Velten, S.
2010. Mathematical Methods of Operations Research, 71 (1), 125–163. doi:10.1007/s00186-009-0288-3
Extensions to the continuous ordered median problem.
Krebs, J.; Nickel, S.
2010. Mathematical Methods of Operations Research, 71 (2), 283–306. doi:10.1007/s00186-009-0296-3
Klinische Behandlungspfade - Integration logistischer Planungsaufgaben.
Kraus, K.; Nickel, S.; Richter, R.; Schilling, M. K.; Schmidt, U. A.; Schuld, J.
2010. Professional process, 2 (1), 12–15 
Distribution systems design with role dependent objectives.
Kalcsics, J.; Nickel, S.; Puerto, J.; Rodriguez-Chia, A. M.
2010. European journal of operational research, 202 (2), 491–501. doi:10.1016/j.ejor.2009.06.001
The ordered capacitated facility location problem.
Kalcsics, J.; Nickel, S.; Puerto, J.; Rodriguez-Chia, A. M.
2010. Top, 18 (1), 203–222. doi:10.1007/s11750-009-0089-0
Liner shipping hub network design in a competitive environment.
Gelareh, S.; Nickel, S.; Pisinger, D.
2010. Transportation research / E, 46 (6), 991–1004. doi:10.1016/j.tre.2010.05.005
A novel maximum dispersion territory design model arising in the implementation of the WEEE-directive.
Fernandez, E.; Kalcsics, J.; Nickel, S.; Rios-Mercado, R. Z.
2010. Journal of the Operational Research Society, 61 (3), 503–514. doi:10.1057/jors.2009.70
Single-assignment hub location problems with multiple capacity levels.
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
2010. Transportation research / B, 44 (8-9), 1047–1066. doi:10.1016/j.trb.2009.12.016
The capacitated single-allocation hub location problem revisited : A note on a classical formulation.
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
2010. European journal of operational research, 207 (1), 92–96. doi:10.1016/j.ejor.2010.04.015
Dynamic transportation of patients in hospitals.
Beaudry, A.; Laporte, G.; Melo, T.; Nickel, S.
2010. OR Spectrum, 32 (1), 77–107. doi:10.1007/s00291-008-0135-6
Conference Papers
Single-Allocation Hub Location Problems with Capacity Decisions and Balancing Requirements.
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
2010. 12th WSEAS International Conference on Mathematical and Computational Methods in Science and Engineering (MACMESE’10), Faro, Portugal, November 3-5, 2010. Ed.: L. Rogozea, 51–56, WSEAS-Press, Stevens Poins (WI) 
Performancevergleich zwischen simulationsbasierter Online- und Offline-Optimierung anhand von Scheduling-Problemen.
Nickel, S.; Heib, C.
2010. Integrationsaspekte der Simulation: Technik, Orgnisation und Personal, Karlsruhe, 7. und 8. Oktober 2010 = Integration Aspects of Simulation: Equipment, Organization and Personnell, Karlsruhe, 7th and 8th October 2010. Hrsg.: G. Zülch, 205–214, KIT Scientific Publishing, Karlsruhe. doi:10.1007/978-3-642-14536-0_17
2009
Book Chapters
Multifacility and Restricted Location Problems.
Hamacher, H. W.; Nickel, S.
2009. Encyclopedia of Optimization. Ed.: C.A. Floudas, 2409–2413, Springer, New York (NY). doi:10.1007/978-0-387-74759-0_414
Journal Articles
Process improvement in Hospitals: A case study in a radiology department.
Nickel, S.; Schmidt, U.-A.
2009. Quality Management in Health Care, 18 (4), 326–338. doi:10.1097/QMH.0b013e3181bee127
Logistics network design.
Nickel, S.; Saldanha-Da-Gama, F.
2009. OR Spectrum, 31 (3), 461–463. doi:10.1007/s00291-009-0165-8
The Ordered Gradual Covering Location Problem on a Network.
Berman, O.; Kalcsics, J.; Krass, D.; Nickel, S.
2009. Discrete Applied Mathematics, 157 (18), 3689–3707. doi:10.1016/j.dam.2009.08.003
Solving the ordered one-median problem in the plane.
Drezner, Z.; Nickel, S.
2009. European Journal of Operational Research (EJOR), 195 (1), 46–61 
A flexible model and efficient solution strategies for discrete location problems.
Marína, A.; Nickel, S.; Puertoc, J.; Velten, S.
2009. Discrete Applied Mathematics, 157 (5), 1128–1145 
Facility location and supply chain management - A review.
Nickel, S.; Melo, M. T.; Saldanha-da-Gama, F.
2009. European Journal of Operational Research (EJOR), 196 (2), 401–412 
Constructing a DC Decomposition for Ordered Median Problems.
Drezner, Z.; Nickel, S.
2009. Journal of Global Optimization, 45 (2), 187–201 
2008
Book Chapters
Kapitel 3 "Logistik".
Nickel, S.
2008. Grundzüge der Krankenhaussteuerung, 173–191, Oldenbourg Verl., München 
Journal Articles
Dynamicsupplychaindesign with inventory.
Hinojosa, Y.; Kalcsics, J.; Nickel, S.; Puerto, J.; Velten, S.
2008. Computers & Operations Research, 35 (2), 373–391 
Conference Papers
Reliability Models for the Uncapacitated Facility Location Problem with User Preferences.
Herrera, R.; Kalcsics, J.; Nickel, S.
2008. Operations research proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, 5.-7. September 2007. Ed.: J. Kalcsics, 135–140, Springer, Berlin 
A Benders Decomposition for Hub Location Problems Arising in Public Transport.
Gelareh, S.; Nickel, S.
2008. Operations research proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, 5.-7. September 2007. Ed.: J. Kalcsics, 129–134, Springer, Berlin 
Optimal Control Strategies for Incoming Inspections.
Nickel, S.; Velten, S.; Ziegler, H.-P.
2008. Operations research proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, 5.-7. September 2007. Ed.: J. Kalcsics, 43–48, Springer, Berlin 
Network Design Decisions in Supply Chain Planning.
Melo, T.; Nickel, S.; Saldanha da Gamma, F.
2008. Optimization of Logistics Systems: Methods and Experiences. Symposium of the Collaborative Research Center 559 "Modelling of Large Logistics Networks", 15.-16. Nov. 2007, Dortmund, 19 S., Verlag Praxiswissen, Dortmund 
2007
Conference Papers
Krankenhauslogistik - Klinische Pfade und Terminplanung.
Nickel, S.; Schmidt, U.-A.
2007. Erfolgsfaktor Arbeitszeit im Krankenhaus: Tagungsunterlagen zum Workshop im Rahmen des DFG-Projektes "Prozessoptimierung und effizienter Personaleinsatz im Krankenhausbereich - Gestaltung flexibler Arbeitszeitmodelle mit Hilfe der personalorientierten Simulation". Hrsg.: G. Zülch am 16.04.2007 in der Universität Karlsruhe (TH) Hrsg.: Gert Zülch, Patricia Stock, Jan Hrdina, Thilo Gamber, 14–38, Universität Karlsruhe, Karlsruhe 
2006
Journal Articles
Dynamic multi-commodity capacitated facility location: A mathematical modeling framework for strategic supply chain planning.
Melo, M. T.; Nickel, S.; Saldanha da Gama, F.
2006. Computers & Operations Research, 33 (1), 181–208 
Exact Procedures for Solving the Discrete Ordered Median Problem.
Boland, N.; Domínguez-Marín, P.; Nickel, S.; Puerto, J.
2006. Computers & Operations Research, 33 (11), 3270–3300 
Conference Papers
A Flexible Model and Efficient Solution Strategies for Discrete Location Problems.
Marín, A.; Nickel, S.; Puerto, J.; Velten, S.
2006. Operations research proceedings 2005: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Bremen, 7.-9. September 2005. Ed.: H. D. Haasis Hrsg.: Hans-Dietrich Haasis, Herbert Kopfer und Jörn Schönberger, 349–354, Springer 
An LP-based Heuristic Approach for Strategic Supply Chain Design.
Velásquez, R.; Melo, T. M.; Nickel, S.
2006. Operations research proceedings 2005: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Bremen, 7.-9. September 2005. Ed.: H. D. Haasis Hrsg.: Hans-Dietrich Haasis, Herbert Kopfer und Jörn Schönberger, 167–172, Springer, Heidelberg 
2005
Book Chapters
MCDM Location Problems.
Nickel, S.; Puerto, J.; Rodríguez-Chía, A. M.
2005. Multiple criteria decision analysis: state of the art surveys. Hrsg.: J. Figueira, 761–787, Springer, New York (NY) 
Strategische Supply-Chain Entscheidungen in der Stahlindustrie - eine Fallstudie.
Nickel, S.; Velten, S.; Weimerskirch, G.
2005. Supply Chain Management und Logistik: Optimierung, Simulation, Decision Support. Hrsg.: H.-O. Günther, 157–177, Physica-Verl., Heidelberg 
Books
Location theory: a unified approach.
Nickel, S.; Puerto, J.
2005. Springer, Berlin 
Journal Articles
Multicriteria Planar Ordered Median Problems.
Nickel, S.; Puerto, J.; Rodríguez-Chía, A. M.; Weissler, A.
2005. Journal of Optimization Theory and Applications, 126 (3), 657–683 
Heuristic Procedures for Solving the Discrete Ordered Median Problem.
Domínguez-Marín, P.; Nickel, S.; Hansen, P.; Mladenovic, N.
2005. Annals of Operations Research, 136 (1), 145–173 
2004
Journal Articles
Adapting polyhedral properties from facility to hub location problems.
Nickel, S.; Hamacher, H. W.; Labbé, M.; Sonneborn, T.
2004. Discrete Applied Mathematics, 145 (1), 104–116 
2003
Journal Articles
An approach to location models involving sets as existing facilities.
Nickel, S.; Puerto, J.; Rodriguez-Chia, A.
2003. Mathematics of Operations Research, 28 (4), 693–715 
Conference Papers
Interaction control in a combined logistics and chemical process simulation.
Nickel, S.; Hietel, D.; Lavrov, A.
2003. Simulation in industry: 15th European Simulation Symposium (ESS 2003), Delft, The Netherland, October 26-29, 2003. Ed.: A. Verbraeck, 562–568, SCS-Europe BVBA, Delft