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» Approximate Expectation Maximization
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ENTCS
2002
207views more  ENTCS 2002»
15 years 6 months ago
Efficient Algorithms for the Maximum Subarray Problem by Distance Matrix Multiplication
We design an efficient algorithm that maximizes the sum of array elements of a subarray of a two-dimensional array. The solution can be used to find the most promising array porti...
Tadao Takaoka
AUTOMATICA
2008
108views more  AUTOMATICA 2008»
15 years 6 months ago
Hedging global environment risks: An option based portfolio insurance
This paper introduces a financial hedging model for global environment risks. Our approach is based on portfolio insurance under hedging constraints. Investors are assumed to maxi...
André de Palma, Jean-Luc Prigent
SIGDIAL
2010
15 years 4 months ago
Cooperative User Models in Statistical Dialog Simulators
Statistical user simulation is a promising methodology to train and evaluate the performance of (spoken) dialog systems. We work with a modular architecture for data-driven simula...
Meritxell González, Silvia Quarteroni, Gius...
COCOON
2005
Springer
16 years 12 days ago
A PTAS for a Disc Covering Problem Using Width-Bounded Separators
In this paper, we study the following disc covering problem: Given a set of discs of various radii on the plane, find a subset of discs to maximize the area covered by exactly on...
Zhixiang Chen, Bin Fu, Yong Tang, Binhai Zhu
FOGA
2011
14 years 10 months ago
The logarithmic hypervolume indicator
It was recently proven that sets of points maximizing the hypervolume indicator do not give a good multiplicative approximation of the Pareto front. We introduce a new “logarith...
Tobias Friedrich, Karl Bringmann, Thomas Voß...