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» On embedding well-separable graphs
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USS
2010
15 years 1 months ago
BotGrep: Finding P2P Bots with Structured Graph Analysis
A key feature that distinguishes modern botnets from earlier counterparts is their increasing use of structured overlay topologies. This lets them carry out sophisticated coordina...
Shishir Nagaraja, Prateek Mittal, Chi-Yao Hong, Ma...
WADS
2001
Springer
126views Algorithms» more  WADS 2001»
15 years 8 months ago
On External-Memory Planar Depth First Search
Even though a large number of I/O-efficient graph algorithms have been developed, a number of fundamental problems still remain open. For example, no space- and I/O-efficient algo...
Lars Arge, Ulrich Meyer, Laura Toma, Norbert Zeh
STOC
2005
ACM
115views Algorithms» more  STOC 2005»
16 years 4 months ago
Lower-stretch spanning trees
We show that every weighted connected graph G contains as a subgraph a spanning tree into which the edges of G can be embedded with average stretch O log2 n log log n . Moreover, w...
Michael Elkin, Yuval Emek, Daniel A. Spielman, Sha...
EUROCOLT
1995
Springer
15 years 7 months ago
The structure of intrinsic complexity of learning
Limiting identification of r.e. indexes for r.e. languages (from a presentation of elements of the language) and limiting identification of programs for computable functions (fr...
Sanjay Jain, Arun Sharma
ICCV
2007
IEEE
16 years 6 months ago
Untangling Cycles for Contour Grouping
We introduce a novel topological formulation for contour grouping. Our grouping criterion, called untangling cycles, exploits the inherent topological 1D structure of salient cont...
Qihui Zhu, Gang Song, Jianbo Shi