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ALGORITHMICA
2005
149views more  ALGORITHMICA 2005»
14 years 10 months ago
Approximating Maximum Weight Cycle Covers in Directed Graphs with Weights Zero and One
A cycle cover of a graph is a spanning subgraph each node of which is part of exactly one simple cycle. A k-cycle cover is a cycle cover where each cycle has length at least k. Gi...
Markus Bläser, Bodo Manthey
63
Voted
ICDM
2008
IEEE
120views Data Mining» more  ICDM 2008»
15 years 4 months ago
Anti-monotonic Overlap-Graph Support Measures
In graph mining, a frequency measure is anti-monotonic if the frequency of a pattern never exceeds the frequency of a subpattern. The efficiency and correctness of most graph pat...
Toon Calders, Jan Ramon, Dries Van Dyck
CORR
2010
Springer
58views Education» more  CORR 2010»
14 years 9 months ago
Realizable Paths and the NL vs L Problem
A celebrated theorem of Savitch [Sav70] states that NSPACE(S) ⊆ DSPACE(S2 ). In particular, Savitch gave a deterministic algorithm to solve ST-CONNECTIVITY (an NL-complete probl...
Shiva Kintali
GD
1998
Springer
15 years 2 months ago
Improved Force-Directed Layouts
Abstract. Techniques for drawing graphs based on force-directed placement and virtual physical models have proven surprisingly successful in producing good layouts of undirected gr...
Emden R. Gansner, Stephen C. North
NIPS
2003
14 years 11 months ago
Salient Boundary Detection using Ratio Contour
This paper presents a novel graph-theoretic approach, named ratio contour, to extract perceptually salient boundaries from a set of noisy boundary fragments detected in real image...
Song Wang, Toshiro Kubota, Jeffrey Mark Siskind