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» Coloring powers of planar graphs
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ICPR
2008
IEEE
15 years 10 months ago
Application of graph coloring in physical layout segmentation
Every-day, the postal sorting systems diffuse several tons of mails. It is noted that the principal origin of mail rejection is related to the failure of address-block localizatio...
Djamel Gaceb, Véronique Eglin, Frank Lebour...
AAAI
1997
15 years 5 months ago
Detecting Unsatisfiable CSPs by Coloring the Micro-Structure
Constraint satisfaction research has focussed on consistency checking using k-consistency and its variations such as arc-consistency, and path-consistency. We define a new form of...
Daya Ram Gaur, W. Ken Jackson, William S. Havens
COMBINATORICA
2010
14 years 11 months ago
Approximation algorithms via contraction decomposition
We prove that the edges of every graph of bounded (Euler) genus can be partitioned into any prescribed number k of pieces such that contracting any piece results in a graph of bou...
Erik D. Demaine, MohammadTaghi Hajiaghayi, Bojan M...
DM
2011
223views Education» more  DM 2011»
14 years 11 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
CORR
2011
Springer
202views Education» more  CORR 2011»
14 years 11 months ago
High Degree Vertices, Eigenvalues and Diameter of Random Apollonian Networks
ABSTRACT. Upon the discovery of power laws [8, 16, 30], a large body of work in complex network analysis has focused on developing generative models of graphs which mimick real-wor...
Alan M. Frieze, Charalampos E. Tsourakakis