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WWW
2008
ACM
16 years 6 months ago
Enhanced hierarchical classification via isotonic smoothing
Hierarchical topic taxonomies have proliferated on the World Wide Web [5, 18], and exploiting the output space decompositions they induce in automated classification systems is an...
Kunal Punera, Joydeep Ghosh
CCGRID
2007
IEEE
16 years 16 days ago
High-Performance MPI Broadcast Algorithm for Grid Environments Utilizing Multi-lane NICs
The performance of MPI collective operations, such as broadcast and reduction, is heavily affected by network topologies, especially in grid environments. Many techniques to cons...
Tatsuhiro Chiba, Toshio Endo, Satoshi Matsuoka
ICC
2007
IEEE
150views Communications» more  ICC 2007»
16 years 16 days ago
Hybrid Protocol for Application Level Multicast for Live Video Streaming
—A hybrid protocol for application level multicast (HPAM) for live video streaming without native IP multicast support is proposed. HPAM exploits the simplicity and optimality of...
Chai Kiat Yeo, Bu-Sung Lee, Meng Hwa Er
CP
2008
Springer
15 years 8 months ago
Exploiting Decomposition in Constraint Optimization Problems
Decomposition is a powerful technique for reducing the size of a backtracking search tree. However, when solving constraint optimization problems (COP's) the standard techniqu...
Matthew Kitching, Fahiem Bacchus
FOCS
2005
IEEE
15 years 11 months ago
On Learning Mixtures of Heavy-Tailed Distributions
We consider the problem of learning mixtures of arbitrary symmetric distributions. We formulate sufficient separation conditions and present a learning algorithm with provable gua...
Anirban Dasgupta, John E. Hopcroft, Jon M. Kleinbe...