654 search results - page 68 / 131 » On the Approximation of Computing Evolutionary Trees |
SIGECOM
2009
ACM
15 years 4 months ago
2009
ACM
Voting trees describe an iterative procedure for selecting a single vertex from a tournament. vide a very general abstract model of decision-making among a group of individuals, a...
TALG
2010
14 years 8 months ago
2010
Fractional hypertree width is a hypergraph measure similar to tree width and hypertree width. Its algorithmic importance comes from the fact that, as shown in previous work [14], ...
FOCS
2006
IEEE
15 years 3 months ago
2006
IEEE
We extend the binary search technique to searching in trees. We consider two models of queries: questions about vertices and questions about edges. We present a general approach t...
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NIPS
2008
14 years 11 months ago
2008
The Singular Value Decomposition is a key operation in many machine learning methods. Its computational cost, however, makes it unscalable and impractical for applications involvi...
STOC
2004
ACM
15 years 10 months ago
2004
ACM
We establish several approximate max-integral-flow / minmulticut theorems. While in general this ratio can be very large, we prove strong approximation ratios in the case where th...