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» On the sample mean of graphs
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130
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DM
2011
223views Education» more  DM 2011»
14 years 7 months ago
On graph equivalences preserved under extensions
Let G be the set of finite graphs whose vertices belong to some fixed countable set, and let ≡ be an equivalence relation on G. By the strengthening of ≡ we mean an equivalen...
Zbigniew Lonc, Miroslaw Truszczynski
111
Voted
JCT
2007
103views more  JCT 2007»
15 years 15 days ago
Geometric drawings of Kn with few crossings
We give a new upper bound for the rectilinear crossing number cr(n) of the complete geometric graph Kn. We prove that cr(n) ≤ 0.380559 ¡n 4 ¢ + Θ(n3 ) by means of a new const...
Bernardo M. Ábrego, Silvia Fernández...
74
Voted
RSA
2010
64views more  RSA 2010»
14 years 11 months ago
Vertices of given degree in series-parallel graphs
We show that the number of vertices of a given degree k in several kinds of series-parallel labelled graphs of size n satisfy a central limit theorem with mean and variance proport...
Michael Drmota, Omer Giménez, Marc Noy
92
Voted
CVGIP
2008
108views more  CVGIP 2008»
15 years 20 days ago
Efficient texture synthesis using strict Wang Tiles
Wang Tiles are constructed from four texture samples, arranged so they can always match a choice of other tiles at two edges. Because they are precomputed, Wang Tiles are a very e...
Xinyu Zhang, Young J. Kim
SIGMOD
2007
ACM
186views Database» more  SIGMOD 2007»
16 years 22 days ago
Fg-index: towards verification-free query processing on graph databases
Graphs are prevalently used to model the relationships between objects in various domains. With the increasing usage of graph databases, it has become more and more demanding to e...
James Cheng, Yiping Ke, Wilfred Ng, An Lu