Methods for ranking World Wide Web resources according to their position in the link structure of the Web are receiving considerable attention, because they provide the ļ¬rst eļ¬...
A digraph is upward planar if it has a planar drawing such that all the edges are monotone with respect to the vertical direction. Testing upward planarity and constructing upward ...
Paola Bertolazzi, Giuseppe Di Battista, Carlo Mann...
An alternative term for these diagrams is āEuler-Venn diagramsā but they are often inaccurately called āVenn diagramsā. Venn diagrams often look similar, but must contain a...
In this paper, we consider a new visual cryptography scheme that allows for sharing of multiple secret images on graphs: we are given an arbitrary graph (V, E) where every node an...
Graphs are typically visualized as node-link diagrams. Although there is a fair amount of research focusing on crossing minimization to improve readability, little attention has b...