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TU Berlin

Inhalt des Dokuments

Design and Operation of Infrastructure Networks under Uncertainty

Construction of an MST under Uncertainty
Lupe
Design and Operation of Infrastructure Networks under Uncertainty
Project heads:
Nicole Megow (until March 2016)
Martin Skutella
Researcher:
Julie Meißner
Student research assistant:
Jacob Focke
Duration:
June 2014 - May 2017
Support:
ECMath

This research is carried out in the framework of Matheon supported by Einstein Foundation Berlin

Description

Uncertainty in the input data is an omnipresent issue in most real world planning processes. Metropolitan infrastructure -its design, operation and maintenance- induces complex planning processes where data uncertainty lies, e. g. in processing durations, transit times, cost, market prices, customer demands, capacity, bandwidth, energy consumption, et cetera. Since decisions on the infrastructure are typically very cost-intensive and of long-term impact, there is an urgent need of best possible mathematical support in this decision making process. 

The quality of solutions for optimization problems (e. g. in infrastructure networks) with uncertain input data crucially depends on the amount of uncertainty. More information, or even knowing the exact data, allows for significantly improved solutions. It is impossible to fully abolish/avoid uncertainty. Nevertheless, it is sometimes possible to obtain exact data, but it may involve certain exploration cost in time, money, energy, bandwidth, etc. 

In telecommunication networks planning, for example, information on the existing infrastructure (copper lines, optical fiber etc.) or the transmission range might not be easily available. The challenging major task of this project is to develop a structural understanding and algorithmic methods on how to balance the cost for data exploration with the actual benefit for the quality of solution to the optimization problem under consideration.

Recent Activities

Publications

Stochastic and Robust Scheduling in the Cloud
Citation key ChenMegowRischke+2015b
Author Chen, Lin and Megow, Nicole and Rischke, Roman and Stougie, Leen
Title of Book Proceedings of the 18th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems (APPROX'15)
Pages 175–186
Year 2015
Download Bibtex entry

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