Rate adaptive multimedia streams offer significant system and client benefits over non-adaptive streams. These benefits come at the price of increased complexity in providing adequate network support and difficulty in understanding how rate adaptation protocols affect client perceived QoS. In this paper we define quality of service in terms of the mean rate seen by the client. We identify an in...

The structure and operation of supply networks have received considerable attention from both the business community and academic researchers in the last two decades as the pace of globalisation has accelerated. Supply networks in the international clothing industry have developed and evolved significantly over that period. This paper reviews different ways to categorise supply networks and not...

&1 André Tischer Dipl Project Assistant, bauserve GmbH, Frankfurt, Germany; Research and Teaching Assistant, University of Technology Darmstadt, Darmstadt, Germany &2 Emilia den Boer Mgr Inz, MSc, Dr Inz Assistant Professor, Wroclaw University of Technology, Institute of Environment Protection Engineering, Wroclaw, Poland &3 Ian Williams PhD, PGCE, CChem, MRSC, MCIWM, FHEA Professor, Centre for...

Author details 1 School of Public Health, Environmental Health Sciences Division and Public Health Informatics Program, HumNat Lab, University of Minnesota, Minneapolis, MN, USA. 2 Institute on the Environment, University of Minnesota, Minneapolis, MN, USA. 3 Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN, USA. 4 Academic Health Center, Mayo Memorial Building, S...

In this paper, we present a method for generating scenarios for two-stage stochastic programs, using multivariate distributions specified by their marginal distributions and the correlation matrix. The margins are described by their cumulative distribution functions and we allow each margin to be of different type. We demonstrate the method on a model from stochastic service network design and ...

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We develop a general method for cost-sharing that is approximately budget balanced and group strategyproof. We use our method to design cost sharing mechanisms for two NP-complete problems: metric facility location, and single source rent-or-buy network design. Both mechanisms are competitive, group strategyproof and recover a constant fraction of the cost. For the facility location game our co...

Good maintainability is an essential feature for machines and processes in industry. It promotes, among others, maintenance safety, postmaintenance reliability and cost-effective maintenance by ensuring quick and easy operation and short downtime. Virtual engineering tools provide an effective way for maintainability design already during the design phase. Machine designers may not consider mai...

Modern optical fibre networks are evolving from static point-to-point connections towards meshed networks with some degree of optical transparency and capability for reconfiguration. At the same time installation and operation shall be simplified, while the availability shall be kept high. In the network design this task can be accomplished by allocation of transmission margins and by control o...