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JCT
2007
77views more  JCT 2007»
15 years 4 months ago
Exponentially many 5-list-colorings of planar graphs
We prove that every planar graph with n vertices has at least 2n/9 distinct list-colorings provided every vertex has at least five available colors. © 2006 Elsevier Inc. All rig...
Carsten Thomassen
COMBINATORICS
2002
85views more  COMBINATORICS 2002»
15 years 4 months ago
Sum List Coloring 2*n Arrays
A graph is f-choosable if for every collection of lists with list sizes specified by f there is a proper coloring using colors from the lists. The sum choice number is the minimum...
Garth Isaak
DAM
2011
14 years 11 months ago
Optimization problems in multiple subtree graphs
We study various optimization problems in t-subtree graphs, the intersection graphs of tsubtrees, where a t-subtree is the union of t disjoint subtrees of some tree. This graph cl...
Danny Hermelin, Dror Rawitz
ICIP
2010
IEEE
15 years 2 months ago
Multi-label propagation for coherent video segmentation and artistic stylization
We present a new algorithm for segmenting video frames into temporally stable colored regions, applying our technique to create artistic stylizations (e.g. cartoons and paintings)...
Tinghuai Wang, Jean-Yves Guillemaut, John P. Collo...
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PERCOM
2008
ACM
15 years 10 months ago
TIGRA: Timely Sensor Data Collection Using Distributed Graph Coloring
In this paper we present a protocol for sensor applications that require periodic collection of raw data reports from the entire network in a timely manner. We formulate the probl...
Lilia Paradis, Qi Han