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» On Bounded Queries and Approximation
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CISS
2008
IEEE
16 years 1 months ago
Optimization via communication networks
— It has been known since the early 1990s that backpressure-type algorithms for communication networks (such as the Max-Weight algorithm) can be used to approximately solve stati...
Matthew Andrews
ECRTS
2006
IEEE
16 years 1 months ago
The Partitioned Scheduling of Sporadic Tasks According to Static-Priorities
A polynomial-time algorithm is presented for partitioning a collection of sporadic tasks among the processors of an identical multiprocessor platform with static-priority scheduli...
Nathan Fisher, Sanjoy K. Baruah, Theodore P. Baker
ICDE
2006
IEEE
239views Database» more  ICDE 2006»
16 years 1 months ago
Grid Representation for Efficient Similarity Search in Time Series Databases
Widespread interest in time-series similarity search has made more in need of efficient technique, which can reduce dimensionality of the data and then to index it easily using a ...
Guifang Duan, Yu Suzuki, Kyoji Kawagoe
STOC
2006
ACM
113views Algorithms» more  STOC 2006»
16 years 1 months ago
Logarithmic hardness of the directed congestion minimization problem
We show that for any constant ε > 0, there is no Ω(log1−ε M)approximation algorithm for the directed congestion minimization problem on networks of size M unless NP ⊆ Z...
Matthew Andrews, Lisa Zhang
CAIP
2005
Springer
107views Image Analysis» more  CAIP 2005»
16 years 25 days ago
Minimum-Length Polygons of First-Class Simple Cube-Curves
We consider simple cube-curves in the orthogonal 3D grid. The union of all cells contained in such a curve (also called the tube of this curve) is a polyhedrally bounded set. The c...
Fajie Li, Reinhard Klette