Browsing by Author "Xu Z."

Now showing items 1-4 of 4

    • A model for capacitated green vehicle routing problem with the time-varying vehicle speed and soft time windows 

      Xu Z.; Elomri A.; Pokharel S.; Mutlu F. ( Elsevier Ltd , 2019 , Article)
      This paper investigates the capacitated green vehicle routing problem (GVRP) with time-varying vehicle speed and soft time windows. The GVRP is developed as a multi-objective mixed integer nonlinear programming (MINLP) ...

    • Global change effects on plant communities are magnified by time and the number of global change factors imposed 

      Komatsu K.J.; Avolio M.L.; Lemoine N.P.; Isbell F.; Grman E.; ... more authors ( National Academy of Sciences , 2019 , Article)
      Global change drivers (GCDs) are expected to alter community structure and consequently, the services that ecosystems provide. Yet, few experimental investigations have examined effects of GCDs on plant community structure ...

    • The design of green supply chains under carbon policies: A literature review of quantitative models 

      Xu Z.; Elomri A.; Pokharel S.; Mutlu F. ( MDPI AG , 2019 , Article Review)
      Carbon footprinting of products and services is getting increasing attention due to the growing emphasis on carbon related policies in many countries. As a result, many enterprises are focusing on the design of green supply ...

    • VisDrone-CC2020: The Vision Meets Drone Crowd Counting Challenge Results 

      Du D.; Wen L.; Zhu P.; Fan H.; Hu Q.; ... more authors ( Springer Science and Business Media Deutschland GmbH , 2020 , Conference Paper)
      Crowd counting on the drone platform is an interesting topic in computer vision, which brings new challenges such as small object inference, background clutter and wide viewpoint. However, there are few algorithms focusing ...