328 search results - page 4 / 66 » Graph Algebras for Bigraphs |
GC
2010
Springer
13 years 4 months ago
2010
Springer
Intriguing and tight sets of vertices of point-line geometries have recently been studied in the literature. In this paper, we indicate a more general framework for dealing with t...
ICCV
2001
IEEE
14 years 8 months ago
2001
IEEE
We propose a method of image segmentation by integrating pairwise attraction and directional repulsion derived from local grouping and figure-ground cues. These two kinds of pairw...
JANCL
2002
13 years 5 months ago
2002
We prove frame determination results for the family of many-valued modal logics introduced by M. Fitting in the early '90s. Each modal language of this family is based on a H...
ORL
2008
13 years 6 months ago
2008
The algebraic connectivity of a graph, which is the second-smallest eigenvalue of the Laplacian of the graph, is a measure of connectivity. We show that the problem of adding a sp...
TCOM
2008
13 years 4 months ago
2008
In this paper, a method to design regular (2, dc)-LDPC codes over GF(q) with both good waterfall and error floor properties is presented, based on the algebraic properties of thei...