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STACS
2000
Springer
15 years 10 months ago
On the Competitive Ratio of the Work Function Algorithm for the k-Server Problem
The k-server problem is one of the most fundamental online problems. The problem is to schedule k mobile servers to visit a sequence of points in a metric space with minimum total...
Yair Bartal, Elias Koutsoupias
BILDMED
2009
175views Algorithms» more  BILDMED 2009»
15 years 8 months ago
Adapted Transfer Function Design for Coronary Artery Evaluation
We present an approach for adapted transfer function (TF) specification to highlight pathologic changes of the coronary artery vessel wall based on contrast medium-enhanced compute...
Sylvia Glaßer, Steffen Oeltze, Anja Hennemut...
CAGD
2005
75views more  CAGD 2005»
15 years 7 months ago
s-power series: an alternative to Poisson expansions for representing analytic functions
Morin and Goldman [Computer Aided Geometric Design 17 (2000) 813] have recently presented a remarkable new framework, based on employing Poisson series, for describing analytic fu...
Javier Sánchez-Reyes, Jesús Miguel C...
CASC
2010
Springer
151views Mathematics» more  CASC 2010»
15 years 6 months ago
Supporting Global Numerical Optimization of Rational Functions by Generic Symbolic Convexity Tests
Convexity is an important property in nonlinear optimization since it allows to apply efficient local methods for finding global solutions. We propose to apply symbolic methods t...
Winfried Neun, Thomas Sturm, Stefan Vigerske
NAACL
2010
15 years 5 months ago
Multi-document Summarization via Budgeted Maximization of Submodular Functions
We treat the text summarization problem as maximizing a submodular function under a budget constraint. We show, both theoretically and empirically, a modified greedy algorithm can...
Hui Lin, Jeff Bilmes