441 search results - page 8 / 89 » Convex Graph Invariants |
EJC
2007
13 years 7 months ago
2007
We study the notion of hypertree width of hypergraphs. We prove that, up to a constant factor, hypertree width is the same as a number of other hypergraph invariants that resemble...
ICML
2008
IEEE
14 years 8 months ago
2008
IEEE
The central issue in representing graphstructured data instances in learning algorithms is designing features which are invariant to permuting the numbering of the vertices. We pr...
FOCS
2008
IEEE
14 years 2 months ago
2008
IEEE
We study the properties of embeddings, multicommodity flows, and sparse cuts in minor-closed families of graphs which are also closed under 2-sums; this includes planar graphs, g...
ECCV
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. We propose a homography estimation method from the contours of planar regions. Standard projective invariants such as cross ratios or canonical frames based on hot points...
AVBPA
1997
Springer
13 years 11 months ago
1997
Springer
We suggest a novel attentional mechanism for detection of smooth convex and concave objects based on direct processing of intensity values. The operator detects the regions of the ...