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» Locality approximation using time
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107
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CORR
2004
Springer
121views Education» more  CORR 2004»
15 years 2 months ago
Solving Elliptic Finite Element Systems in Near-Linear Time with Support Preconditioners
We consider linear systems arising from the use of the finite element method for solving a certain class of linear elliptic problems. Our main result is that these linear systems, ...
Erik G. Boman, Bruce Hendrickson, Stephen A. Vavas...
126
Voted
PG
2007
IEEE
15 years 9 months ago
Fogshop: Real-Time Design and Rendering of Inhomogeneous, Single-Scattering Media
We describe a new, analytic approximation to the airlight integral from scattering media whose density is modeled as a sum of Gaussians. The approximation supports real-time rende...
Kun Zhou, Qiming Hou, Minmin Gong, John Snyder, Ba...
RAS
2007
85views more  RAS 2007»
15 years 2 months ago
Self-localization in non-stationary environments using omni-directional vision
This paper presents an image-based approach for localization in non-static environments using local feature descriptors, and its experimental evaluation in a large, dynamic, popul...
Henrik Andreasson, André Treptow, Tom Ducke...
148
Voted
CGF
2008
98views more  CGF 2008»
15 years 2 months ago
Surface Reconstruction from Unorganized Point Data with Quadrics
We present a reverse engineering method for constructing a surface approximation scheme whose input is a set of unorganized noisy points in space and whose output is a set of quad...
Marek Vanco, Bernd Hamann, Guido Brunnett
138
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TALG
2010
109views more  TALG 2010»
15 years 1 months ago
Facility location with hierarchical facility costs
We introduce a facility location problem with submodular facility cost functions, and give an O(log n) approximation algorithm for it. Then we focus on a special case of submodula...
Zoya Svitkina, Éva Tardos