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» Semidefinite Programming Based Approximation Algorithms
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TSP
2012
12 years 3 months ago
Robust Multicast Beamforming for Spectrum Sharing-Based Cognitive Radios
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...
TKDE
2012
199views Formal Methods» more  TKDE 2012»
11 years 10 months ago
Subscriber Assignment for Wide-Area Content-Based Publish/Subscribe
— We study the problem of assigning subscribers to brokers in a wide-area content-based publish/subscribe system. A good assignment should consider both subscriber interests in t...
Albert Yu, Pankaj K. Agarwal, Jun Yang
COCOON
2005
Springer
14 years 1 months ago
Bicriteria Network Design via Iterative Rounding
We study the edge-connectivity survivable network design problem with an additional linear budget constraint. We give a strongly polynomial time (3, 3)-approximation algorithm for ...
Piotr Krysta
ICASSP
2009
IEEE
14 years 2 months ago
Document reconstruction using dynamic programming
In this work we propose a methodology for document reconstruction based on dynamic programming and a modified version of the Prim’s algorithm. Firstly, we use polygonal approxi...
Andre Pimenta, Edson J. R. Justino, Luiz S. Olivei...
LATIN
1998
Springer
13 years 11 months ago
Fast Two-Dimensional Approximate Pattern Matching
We address the problem of approximate string matching in two dimensions, that is, to nd a pattern of size m m in a text of size n n with at most k errors (substitutions, insertions...
Ricardo A. Baeza-Yates, Gonzalo Navarro