Our key research focus areas include

  • Aggregate production planning
  • Material requirements planning
  • Product mix planning
  • Lot sizing
  • Shop floor scheduling
  • Assembly line balancing
  • Just in time and lean manufacturing
  • Project scheduling

Members of the research group

  • Meral Azizoğlu
  • İsmail Serdar Bakal
  • Sakine Batun
  • Pelin Bayındır
  • Sinan Gürel
  • Sedef Meral

Selected projects

  • Green Robotic Cell Scheduling, TÜBİTAK 1001, April 2016 - April 2018. Team member(s): Gültekin H., Gürel S.
  • Çok Dönemli Randevu Çizelgeleme Problemi için Rassal Programlama Yaklaşımları, METU BAP-08-11-2016-065, July 2016 - December 2016. Team member(s): Batun S., Bilgiç U.T.
  • Development of Performance Based Project Management Decision Support System for Construction Project Consultancy Companies, ES Project,  June 2014 - June 2015. Team member(s): Duran S.
  • Development of a Decision Support System to Determine the Work Load of Engineering Design Project, TAI, June 2012 - 2013. Team members: Özdemirel N. E., Duran S., İyigün C., Bakal İ. S.
  • Development of Make-or-Buy Decision Support System for an Automobile Production Line, TOFAŞ Türk Otomobil Fabrikası A.Ş, June 2011 - 2012. Team members: Kayalıgil S., Duran S., Arıkan U.
  • Havayolu Taşımacılığında Çizelge Aksaklıkları Yönetimi, METU BAP-08-11-2011-125, January 2011 - 2012. Team member(s): Gürel S., Arıkan U.

Selected publications

  • Gürel S., Gültekin H., Akhlaghi V. E. (2019), Energy conscious scheduling of a material handling robot in a manufacturing cell, Robotics and Computer Integrated Manufacturing, 58, pp 97-108.
  • Gürel S., Shadmand A. (2019), A heterogeneous fleet liner ship scheduling problem with port time uncertainty, Central European Journal of Operations Research, 27(4), pp 1153-1175.
  • Silav A., Karasakal O., Karasakal E. (2019), Bi-objective missile rescheduling for a naval task group with dynamic disruptions, Naval Research Logistics, 66, pp 596-615.
  • Azizoğlu M., İmat S. (2018), Workload smoothing in simple assembly line balancing, Computers and Operations Research, 89, pp 51-57.
  • Bayley T., Süral H., Bookbinder H. J. (2018), A hybrid benders approach for coordinated capacitated lot-sizing of multiple product families with set-up times, International Journal of Production Research, 56(3), pp 1326-1344.
  • Limon Y., Azizoğlu M. (2018), New heuristics for the balanced k-Chinese postmen problem, International Journal of Planning and Scheduling, 2, pp 331-349 .
  • Bakal İ.S., Bayındır Z.P., Emer D.E. (2017), Value of disruption information in an EOQ environment, European Journal of Operational Research, 263, pp 446-460.
  • Sancı E., Azizoğlu M. (2017), Rebalancing the assembly lines: Exact solution approaches, International Journal of Production Research, 55, pp 5991-6010.
  • Şafak Ö., Gürel S., Aktürk M.S. (2017), Integrated sircraft-path sssignment and robust schedule design with cruise ppeed control, Computers & Operations Research, 84, pp 127-145.
  • Savaşaneril S., Sayın E. (2017), Dynamic lead time quotation under responsive inventory and multiple customer classes, OR Spectrum, 39, pp 95-135.
  • Topan E., Bayındır Z.P., Tan T. (2017), Heuristics for multi-item two echelon spare parts inventory control subject to aggregate and individual service measures, European Journal of Operational Research, 256, pp 126-138.
  • Altekin F.T., Bayındır Z.P., Gümüşkaya V. (2016), Remedial actions for disassembly lines with stochastic task times, Computers & Industrial Engineering, 99, pp 78-96.
  • Cömert A., Azizoğlu M. (2016), A branch and bound algorithm for project scheduling problem with discounted cash flows, International Journal of Planning and Scheduling, 2, pp 233-251.
  • Çelik M., Süral H. (2016), Order picking in a parallel-aisle warehouse with turn penalties, International Journal of Production Research, 54(14), pp 4340-4355.
  • Göksoy E., Azizoğlu M. , Yeralan S. (2016), A disassembly line balancing problem with fixed number of workstations, European Journal of Operational Research, 249, pp 592-604.
  • Güden H., Meral S. (2016), An adaptive simulated annealing algorithm-based approach for assembly line balancing and a real-life case study, International Journal of Advanced Manufacturing Technology, 84(5-8), pp 1539-1559.
  • Gündoğdu E., Gültekin H. (2016), Scheduling in two-machine robotic cells with a self- buffered robot, IIE Transactions, 48(2), pp 170-191.
  • Gürkan H., Gürel S., Aktürk M.S. (2016), An integrated approach for airline scheduling, aircraft fleeting and routing with cruise speed control, Transportation Research Part C: Emerging Technologies, 68, pp 38-57.
  • Cao W., Çelik M., Ergun Ö., Swann J., Viljoen, N. (2016), Challenges in service network expansion: An application in donated breastmilk banking in South Africa, Socio-Economic Planning Sciences, 53(1), pp 33-48.
  • Çelik M., Süral H. (2016), Order picking in a parallel-aisle warehouse with turn penalties, International Journal of Production Research, 54(14), pp 4340-4355.
  • Göksoy E., Azizoğlu M., Yeralan S. (2016), A disassembly line balancing problem with fixed number of workstations, European Journal of Operational Research, 249, pp 592-604.
  • Güden H., Meral S. (2016), An adaptive simulated annealing algorithm-based approach for assembly line balancing and a real-life case study, International Journal of Advanced Manufacturing Technology, 84(5-8), pp 1539-1559.
  • Gündoğdu E., Gültekin H. (2016), Scheduling in two-machine robotic cells with a self-buffered robot, IIE Transactions, 48(2), pp 170-191.
  • Karasakal E., Silav A. (2016), A multi-objective genetic algorithm for a bi-objective facility location problem with partial coverage, TOP, 24(1), pp 206-232.
  • Solyalı O., Denizel M., Süral H. (2016), Effective network formulations for lot sizing with backlogging in two-level serial supply chains, IIE Transactions, 48(2), pp 146-157.
  • Ayasandır U.E. , Aybek F., Canbaz U. , Erdoğan E., Gürel E., Bakal İ.S., Bayındır Z.P. (2015), Eczacıbaşı hijyen ürünleri üretim ve envanter sistemi tasarımı, Endüstri Mühendisliği Dergisi, 26(4), pp 21-34.
  • Azizoğlu, M., Çetinkaya F.C., Kırbıyık S. (2015), LP relaxation-based solution algorithms for the multi-mode project scheduling with a non-renewable resource, European Journal of Industrial Engineering, 9(4), pp 450-469.
  • Ogan D., Azizoğlu M. (2015), A branch and bound method for the line balancing problem in u-shaped assembly lines with equipment requirements, Journal of Manufacturing Systems, 36, pp 46-54.
  • Aktürk M.S., Atamtürk A., Gürel S. (2014), Aircraft rescheduling with cruise speed control, Operations Research, 62(4), pp 829-845.
  • Çelik M., Süral H. (2014), Order picking under random and turnover-based storage policies in fishbone aisle warehouses, IIE Transactions, 46(3), pp 283-300.
  • Güden H., Meral S. (2013), Düzeltmeli tavlama benzetimi ile birinci tipte basit montaj hattı dengeleme: Bir gerçek hayat uygulaması, Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, 28(4), pp 897-908.
  • Kaman C., Savaşaneril S., Serin Y. (2013), Production and lead time quotation under imperfect shop floor information, International Journal of Production Economics, 144(2), pp 422–431.
  • Karakaya S., Bakal İ.S. (2013), Joint quantity flexibility for multiple products in a decentralized supply chain, Computers & Industrial Engineering, 64(2), pp 696-707.
  • Mart T., Duran S., Bakal İ.S. (2013), Tactical inventory and backorder decisions for systems with predictable product yield, International Journal of Production Economics, 143(2), pp 294-303.
  • Nalça A, Süral H., Gerchak Y. (2013), Economic manufacturing quantities of components in supply chains, International Journal of Inventory Research, 2(1/2), pp 44-62.
  • Karsu Ö, Azizoğlu M. (2012), The multi-resource agent bottleneck generalized assignment problem, International Journal of Production Research, 50, pp 309-324.
  • Barutçuoğlu Ş, Azizoğlu M. (2011), Flexible assembly line design problem with fixed number of workstations, International Journal of Production Research, 49, pp 3691-3714.
  • Eliiyi Türsel D., Azizoğlu M. (2011), Operational fixed job scheduling with working time and spread time constraints, International Journal of Production Economics, 132, pp 107-120.
  • Topan E., Avşar Z.M. (2011), An approximation for kanban controlled assembly systems, Annals of Operations Research, 182(1), pp 133-162.
  • Özlen M., Azizoğlu M. (2011), Rescheduling unrelated parallel machines with total flow time and total disruption cost criteria, Journal of Operational Research Society, 62, pp 152-164.