Sciweavers

4298 search results - page 36 / 860
» Measurable chromatic numbers
Sort
View
ICA
2004
Springer
14 years 1 months ago
Spatio-chromatic ICA of a Mosaiced Color Image
We analyze whether Independant Component Analysis (ICA) is an appropriate tool for estimating spatial information in spatio-chromatic mosaiced color images. In previous studies, IC...
David Alleysson, Sabine Süsstrunk
COMBINATORICS
2007
77views more  COMBINATORICS 2007»
13 years 8 months ago
Enumeration and Asymptotic Properties of Unlabeled Outerplanar Graphs
We determine the exact and asymptotic number of unlabeled outerplanar graphs. The exact number gn of unlabeled outerplanar graphs on n vertices can be computed in polynomial time,...
Manuel Bodirsky, Éric Fusy, Mihyun Kang, St...
CIAC
2010
Springer
262views Algorithms» more  CIAC 2010»
13 years 12 months ago
Graph unique-maximum and conflict-free colorings
We investigate the relationship between two kinds of vertex colorings of graphs: uniquemaximum colorings and conflict-free colorings. In a unique-maximum coloring, the colors are ...
Panagiotis Cheilaris and Géza Tóth
JCT
2007
112views more  JCT 2007»
13 years 8 months ago
On generalized Kneser hypergraph colorings
In Ziegler (2002), the second author presented a lower bound for the chromatic numbers of hypergraphs KGr sssS, “generalized r-uniform Kneser hypergraphs with intersection multi...
Carsten E. M. C. Lange, Günter M. Ziegler
STOC
2009
ACM
160views Algorithms» more  STOC 2009»
14 years 9 months ago
CSP gaps and reductions in the lasserre hierarchy
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
Madhur Tulsiani