Sciweavers

436 search results - page 70 / 88
» Lombardi Drawings of Graphs
Sort
View
GD
2007
Springer
14 years 2 months ago
A Bipartite Strengthening of the Crossing Lemma
Let G = (V, E) be a graph with n vertices and m ≥ 4n edges drawn in the plane. The celebrated Crossing Lemma states that G has at least Ω(m3 /n2 ) pairs of crossing edges; or ...
Jacob Fox, János Pach, Csaba D. Tóth
COCOA
2007
Springer
14 years 2 months ago
A New Exact Algorithm for the Two-Sided Crossing Minimization Problem
The Two-Sided Crossing Minimization (TSCM) problem calls for minimizing the number of edge crossings of a bipartite graph where the two sets of vertices are drawn on two parallel l...
Lanbo Zheng, Christoph Buchheim
GD
2003
Springer
14 years 1 months ago
The Puzzle Layout Problem
We address the new problem of puzzle layout as a new application of awing. We present two abstract models of puzzles, permutation puzzles and cyclic puzzles, which can be modeled a...
Kozo Sugiyama, Seok-Hee Hong, Atsuhiko Maeda
COCOON
2010
Springer
14 years 1 months ago
Imbalance Is Fixed Parameter Tractable
In the Imbalance Minimization problem we are given a graph G = (V, E) and an integer b and asked whether there is an ordering v1 . . . vn of V such that the sum of the imbalance of...
Daniel Lokshtanov, Neeldhara Misra, Saket Saurabh
GD
2009
Springer
14 years 1 months ago
Port Constraints in Hierarchical Layout of Data Flow Diagrams
Abstract. We present a new application for graph drawing in the context of graphical model-based system design, where manual placing of graphical items is still state-of-the-practi...
Miro Spönemann, Hauke Fuhrmann, Reinhard von ...