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» Query Complexity Lower Bounds for Reconstruction of Codes
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DC
2008
13 years 8 months ago
Approximate distributed top- k queries
We consider a distributed system where each node keeps a local count for items (similar to elections where nodes are ballot boxes and items are candidates). A top-k query in such ...
Boaz Patt-Shamir, Allon Shafrir
ALMOB
2008
92views more  ALMOB 2008»
13 years 8 months ago
Reconstructing phylogenies from noisy quartets in polynomial time with a high success probability
Background: In recent years, quartet-based phylogeny reconstruction methods have received considerable attentions in the computational biology community. Traditionally, the accura...
Gang Wu, Ming-Yang Kao, Guohui Lin, Jia-Huai You
GLOBECOM
2010
IEEE
13 years 5 months ago
An Exit-Chart Aided Design Procedure for Near-Capacity N-Component Parallel Concatenated Codes
1 Shannon's channel capacity specifies the upper bound on the amount of bits per channel use. In this paper, we explicitly demonstrate that twin-component turbo codes suffer f...
Hong Chen, Robert G. Maunder, Lajos Hanzo
CORR
2010
Springer
99views Education» more  CORR 2010»
13 years 8 months ago
On Equivalence Between Network Topologies
One major open problem in network coding is to characterize the capacity region of a general multi-source multi-demand network. There are some existing computational tools for boun...
Michelle Effros, Tracey Ho, Shirin Jalali
FOCS
2003
IEEE
14 years 1 months ago
Quantum Search of Spatial Regions
: Can Grover’s algorithm speed up search of a physical region—for example a 2-D grid of size √ n × √ n? The problem is that √ n time seems to be needed for each query, j...
Scott Aaronson, Andris Ambainis