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» An Approximation Algorithm for Approximation Rank
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110
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BMCBI
2010
112views more  BMCBI 2010»
15 years 2 months ago
A boundary delimitation algorithm to approximate cell soma volumes of bipolar cells from topographical data obtained by scanning
Background: Cell volume determination plays a pivotal role in the investigation of the biophysical mechanisms underlying various cellular processes. Whereas light microscopy in pr...
Patrick Happel, Kerstin Moller, Ralf Kunz, Irmgard...
144
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COMPUTING
2008
174views more  COMPUTING 2008»
15 years 2 months ago
Multilevel algorithms for Rannacher-Turek finite element approximation of 3D elliptic problems
Generalizing the approach of a previous work [15] the authors present multilevel preconditioners for three-dimensional (3D) elliptic problems discretized by a family of Rannacher ...
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
117
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TIT
2008
109views more  TIT 2008»
15 years 2 months ago
Statistical Analysis of Bayes Optimal Subset Ranking
Abstract--The ranking problem has become increasingly important in modern applications of statistical methods in automated decision making systems. In particular, we consider a for...
David Cossock, Tong Zhang
158
Voted
ICIP
2003
IEEE
16 years 4 months ago
Algorithms for stochastic approximations of curvature flows
Curvature flows have been extensively considered from a deterministic point of view. They have been shown to be useful for a number of applications including crystal growth, flame...
Gozde B. Unal, Delphine Nain, G. Ben-Arous, Nahum ...
FOCS
2009
IEEE
15 years 9 months ago
Improved Approximation Algorithms for PRIZE-COLLECTING STEINER TREE and TSP
Aaron Archer, MohammadHossein Bateni, Mohammad Tag...