Waiting time analysis for priority queues with/without vacations under random order of service discipline.
Warm-start cuts for Generalized Benders Decomposition
In this paper, we describe a decomposition algorithm suitable for two-stage convex stochastic programs known as Generalized Benders Decomposition. For this algorithm we propose a new reformulation that incorporates a lower bound cut that serves as a warm-start, decreasing the overall computation time. Additionally, we test the performance of the proposed reformulation on two modifications of the algorithm (bunching and multicut) using numerical examples. The numerical part is programmed in MATLAB...
Warranty optimization in a dynamic environment.
Warteschlangen vor zwei Bedienungsstationen, an denen dieselbe Dienstleistung zu unterschiedlichen Preisen angeboten wird
Weak conditions for the existence of optimal stationary policies in average Markov decision chains with unbounded costs
Weak sharp minima in multiobjective optimization
Weighted Elastic Net Model for Mass Spectrometry Imaging Processing
In proteomics study, Imaging Mass Spectrometry (IMS) is an emerging and very promising new technique for protein analysis from intact biological tissues. Though it has shown great potential and is very promising for rapid mapping of protein localization and the detection of sizeable differences in protein expression, challenges remain in data processing due to the difficulty of high dimensionality and the fact that the number of input variables in...
Weighted means and weighting functions
We present some properties of mixture and generalized mixture operators, with special stress on their monotonicity. We introduce new sufficient conditions for weighting functions to ensure the monotonicity of the corresponding operators. However, mixture operators, generalized mixture operators neither quasi-arithmetic means weighted by a weighting function need not be non- decreasing operators, in general.
Weighted scalarization related to -metric and pareto optimality
Relations between (proper) Pareto optimality of solutions of multicriteria optimization problems and solutions of the minimization problems obtained by replacing the multiple criteria with -norm related functions (depending on the criteria, goals, and scaling factors) are investigated.
Well behaved asymptotical convex functions
When is a 0-1 knapsack a matroid?
Which carbon derivatives are applicable in practice? A case study of a European steel company
This paper constructs and analyses a model for optimal production and emission covering of a real-life European steel company. The emissions may be covered by a combination of EUA and CER allowances and their derivatives. The company is assumed to be risk-averse, maximizing the Mean-CVaR criterion. The problem is analysed given continuum of risk-aversion coefficients and three scenarios of the demand. It is found that the production does not depend on the risk aversion and is always maximal, but...
Worst-Case Minimum Rectilinear Steiner Trees in All Dimensions.