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TVCG
2011
136views more  TVCG 2011»
14 years 4 months ago
Interactive Mesh Cutting Using Constrained Random Walks
—This paper considers the problem of interactively finding the cutting contour to extract components from an existing mesh. First, we propose a constrained random walks algorith...
Juyong Zhang, Jianmin Zheng, Jianfei Cai
NETWORK
2010
153views more  NETWORK 2010»
14 years 4 months ago
Sizing up online social networks
While the size of popular Online Social Networks (OSNs) such as MySpace or Twitter has been reported to be in the tens or hundreds of millions of users (and growing), little is kn...
Reza Rejaie, Mojtaba Torkjazi, Masoud Valafar, Wal...
SIAMIS
2010
378views more  SIAMIS 2010»
14 years 4 months ago
Global Interactions in Random Field Models: A Potential Function Ensuring Connectedness
Markov random field (MRF) models, including conditional random field models, are popular in computer vision. However, in order to be computationally tractable, they are limited to ...
Sebastian Nowozin, Christoph H. Lampert
SIAMJO
2010
130views more  SIAMJO 2010»
14 years 4 months ago
A Randomized Cutting Plane Method with Probabilistic Geometric Convergence
Abstract. We propose a randomized method for general convex optimization problems; namely, the minimization of a linear function over a convex body. The idea is to generate N rando...
Fabrizio Dabbene, P. S. Shcherbakov, Boris T. Poly...
SIAMMAX
2010
146views more  SIAMMAX 2010»
14 years 4 months ago
A Comparison of Two-Level Preconditioners Based on Multigrid and Deflation
It is well-known that two-level and multi-level preconditioned conjugate gradient (PCG) methods provide efficient techniques for solving large and sparse linear systems whose coeff...
J. M. Tang, S. P. MacLachlan, Reinhard Nabben, C. ...