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» SNPs Problems, Complexity, and Algorithms
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128
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JAIR
2008
145views more  JAIR 2008»
15 years 3 months ago
Communication-Based Decomposition Mechanisms for Decentralized MDPs
Multi-agent planning in stochastic environments can be framed formally as a decentralized Markov decision problem. Many real-life distributed problems that arise in manufacturing,...
Claudia V. Goldman, Shlomo Zilberstein
112
Voted
ICALP
2005
Springer
15 years 9 months ago
Facility Location in Sublinear Time
Abstract. In this paper we present a randomized constant factor approximation algorithm for the problem of computing the optimal cost of the metric Minimum Facility Location proble...
Mihai Badoiu, Artur Czumaj, Piotr Indyk, Christian...
154
Voted
COMPGEOM
2010
ACM
15 years 8 months ago
Adding one edge to planar graphs makes crossing number hard
A graph is near-planar if it can be obtained from a planar graph by adding an edge. We show that it is NP-hard to compute the crossing number of near-planar graphs. The main idea ...
Sergio Cabello, Bojan Mohar
133
Voted
TWC
2008
238views more  TWC 2008»
15 years 3 months ago
Downlink resource allocation in multi-carrier systems: frequency-selective vs. equal power allocation
In this paper, a dynamic subcarrier and power allocation problem is considered in the context of asymptotic utility maximization in multi-carrier systems. Using the gradient-based...
Hyang-Won Lee, Song Chong
115
Voted
ICIP
2005
IEEE
16 years 5 months ago
Threshold dynamics for shape reconstruction and disocclusion
We propose a very efficient numerical algorithm for minimizing certain curvature dependent functionals that appear in a variety of well known variational models of image processin...
Selim Esedoglu, Steven J. Ruuth, Richard Tsai