نتایج جستجو برای: geographic region

تعداد نتایج: 600232  

2006
Daoqin Tong Alan T. Murray

The use of points to represent facilities, demand or a region of interest in location modeling may not effectively address the geometrically complex shape of abstracted spatial features resulting in certain measurement errors. While point-based representations facilitate model construction, simplify data requirements and enable more efficient problem solution, advances in GIScience and spatial ...

2017
Timothy Scully Jonas Oddur Jonasson Dimitris Bertsimas Nikolaos Trichakis

End-stage liver disease is one of the leading causes of death in the United States, and the only viable treatment is liver transplantation. Since the quality of a donor liver decreases with transportation time, United States organ policy prioritizes transplants within geographic regions. However, the boundaries of these regions were defined mostly by informal relationships between transplant ce...

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