Now showing items 1-5 of 5

    • Master production scheduling under uncertainty with controllable processing times 

      Körpeoğlu, Ersin (Bilkent University, 2009)
      Master Production Schedules (MPS) are widely used in industry especially within Enterprise Resource Planning (ERP) Software. MPS assumes infinite capacity, fixed processing times and a single scenario for demand forecasts. ...
    • Multi-period supplier selection under price uncertainty 

      Şen, A.; Yaman, H.; Güler, K.; Körpeoğlu, E. (Palgrave Macmillan, 2014)
      We consider a problem faced by a procurement manager who needs to purchase a large volume of multiple items over multiple periods from multiple suppliers that provide base prices and discounts. Discounts are contingent on ...
    • Multi-stage airline scheduling problem with stochastic passenger demand and non-cruise times 

      Şafak, Ö.; Çavuş, Ö.; Aktürk, M. S. (Elsevier, 2018)
      We propose a three-stage stochastic programming model which determines flight timing, fleeting and routing decisions while considering the randomness of demand and non-cruise times. Our model differs from the existing ...
    • Risk-averse multi-stage mixed-integer stochastic programming problems 

      Mahmutoğulları, Ali İrfan (Bilkent University, 2019-01-29)
      Risk-averse multi-stage mixed-integer stochastic programming problems form a class of extremely challenging problems since the problem size grows exponentially with the number of stages, they are non-convex due to ...
    • Shelter site location under multi-hazard scenarios 

      Özbay, Ekmel; Çavuş, Özlem; Kara, Bahar Y. (Elsevier, 2019)
      Natural disasters may happen successively in close proximity of each other. This study locates shelter sites and allocates the affected population to the established set of shelters in cases of secondary disaster(s) following ...