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TVCG
2011
119views more  TVCG 2011»
14 years 6 months ago
Toward High-Quality Gradient Estimation on Regular Lattices
—In this paper, we present two methods for accurate gradient estimation from scalar field data sampled on regular lattices. The first method is based on the multidimensional Tayl...
Zahid Hossain, Usman R. Alim, Torsten Möller
SIAMMA
2010
87views more  SIAMMA 2010»
14 years 6 months ago
Asymptotic Shallow Water Models for Internal Waves in a Two-Fluid System with a Free Surface
Abstract. In this paper, we derive asymptotic models for the propagation of two and threedimensional gravity waves at the free surface and the interface between two layers of immis...
Vincent Duchêne
TSP
2010
14 years 6 months ago
Distributed spectrum sensing for cognitive radio networks by exploiting sparsity
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...
Juan Andrés Bazerque, Georgios B. Giannakis

Publication
794views
16 years 8 months ago
A Fast Implementation of The Level Set Method Without Solving Partial Differential Equations
"The level set method is popular in the numerical implementation of curve evolution, but its high computational cost is a bottleneck for real-time applications. In this report...
Yonggang Shi, William Clem Karl
ICDE
2005
IEEE
175views Database» more  ICDE 2005»
16 years 1 months ago
BOXes: Efficient Maintenance of Order-Based Labeling for Dynamic XML Data
Order-based element labeling for tree-structured XML data is an important technique in XML processing. It lies at the core of many fundamental XML operations such as containment j...
Adam Silberstein, Hao He, Jun Yang 0001, Ke Yi