An improved mixed integer program for single allocation hub location problems with stepwise cost function
| Autor: | J. Fabian Meier |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
050210 logistics & transportation
Mathematical optimization 021103 operations research Branch and bound Cost structure Computer science Strategy and Management 05 social sciences 0211 other engineering and technologies Volume (computing) 02 engineering and technology Function (mathematics) Management Science and Operations Research Linear function Computer Science Applications Management of Technology and Innovation 0502 economics and business Capacity utilization Business and International Management Branch and cut Integer (computer science) |
| Zdroj: | International Transactions in Operational Research. 24:983-991 |
| ISSN: | 0969-6016 |
| DOI: | 10.1111/itor.12270 |
| Popis: | Recently, a new model for the uncapacitated single allocation p-hub median problem was defined, which uses a more realistic cost structure. Instead of measuring the transport costs as a linear function of the volume, integer variables for the number of used vehicles are introduced. This leads to a more precise model if the number of vehicles is low and capacity utilization plays a major role. We will introduce a new mixed integer program formulation of the problem that uses fewer variables but more constraints. This study shows its numerical advantages. |
| Databáze: | OpenAIRE |
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