Sciweavers

785 search results - page 18 / 157
» An Algebra of Hierarchical Graphs
Sort
View
ECCV
2010
Springer
13 years 11 months ago
Nonlocal Multiscale Hierarchical Decomposition on Graphs
Abstract. The decomposition of images into their meaningful components is one of the major tasks in computer vision. Tadmor, Nezzar and Vese [1] have proposed a general approach fo...
Moncef Hidane, Olivier Lezoray, Vinh-Thong Ta, Abd...
FMOODS
2003
13 years 11 months ago
Towards Object-Oriented Graphs and Grammars
This work aims to extend the algebraical approach to graph transformation to model object-oriented systems structures and computations. A graph grammar based formal framework for o...
Ana Paula Lüdtke Ferreira, Leila Ribeiro
EMNLP
2010
13 years 7 months ago
Word Sense Induction Disambiguation Using Hierarchical Random Graphs
Graph-based methods have gained attention in many areas of Natural Language Processing (NLP) including Word Sense Disambiguation (WSD), text summarization, keyword extraction and ...
Ioannis P. Klapaftis, Suresh Manandhar
DM
2006
78views more  DM 2006»
13 years 9 months ago
On polynomial digraphs
Let (x, y) be a bivariate polynomial with complex coefficients. The zeroes of (x, y) are given a combinatorial structure by considering them as arcs of a directed graph G(). This p...
Josep M. Brunat, Antonio Montes
DM
2010
79views more  DM 2010»
13 years 10 months ago
Algebraic connectivity for vertex-deleted subgraphs, and a notion of vertex centrality
Let G be a connected graph, suppose that v is a vertex of G, and denote the subgraph formed from G by deleting vertex v by G \ v. Denote the algebraic connectivities of G and G \ ...
Steve Kirkland