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» The Complexity of Polynomial-Time Approximation
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COMPGEOM
2011
ACM
14 years 10 months ago
Deconstructing approximate offsets
We consider the offset-deconstruction problem: Given a polygonal shape Q with n vertices, can it be expressed, up to a tolerance ε in Hausdorff distance, as the Minkowski sum o...
Eric Berberich, Dan Halperin, Michael Kerber, Roza...
COMPGEOM
2011
ACM
14 years 10 months ago
Reeb graphs: approximation and persistence
Given a continuous function f : X → IR on a topological space X, its level set f−1 (a) changes continuously as the real value a changes. Consequently, the connected components...
Tamal K. Dey, Yusu Wang
ICASSP
2008
IEEE
16 years 1 months ago
Approximation and resampling of tapped delay line channel models with guaranteed channel properties
In this paper, we present a novel framework for resampling and complexity reduction of tapped delay line channel models. In contrast to related algorithms in this field, our fram...
Christian Mehlführer, Markus Rupp
WSCG
2001
202views more  WSCG 2001»
15 years 8 months ago
On Flexible Body Approximations of Rigid Body Dynamics
This paper demonstrates that techniques in flexible body dynamics can yield surprising results when applied to rigid bodies. The discussion presents a technique for constructing r...
John McDonald
ICDE
2012
IEEE
240views Database» more  ICDE 2012»
13 years 9 months ago
Approximate Shortest Distance Computing: A Query-Dependent Local Landmark Scheme
—Shortest distance query between two nodes is a fundamental operation in large-scale networks. Most existing methods in the literature take a landmark embedding approach, which s...
Miao Qiao, Hong Cheng, Lijun Chang, Jeffrey Xu Yu