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LATIN
2010
Springer
14 years 2 months ago
Optimal Polygonal Representation of Planar Graphs
In this paper, we consider the problem of representing graphs by polygons whose sides touch. We show that at least six sides per polygon are necessary by constructing a class of pl...
Emden R. Gansner, Yifan Hu, Michael Kaufmann, Step...
GD
2003
Springer
14 years 27 days ago
Intersection-Free Morphing of Planar Graphs
Given two different drawings of a planar graph we consider the problem of morphing one drawing into the other. We designed and implemented an algorithm for intersection-free morph...
Cesim Erten, Stephen G. Kobourov, Chandan Pitta
COCO
2006
Springer
97views Algorithms» more  COCO 2006»
13 years 11 months ago
Grid Graph Reachability Problems
We study the complexity of restricted versions of s-t-connectivity, which is the standard complete problem for NL. In particular, we focus on different classes of planar graphs, o...
Eric Allender, David A. Mix Barrington, Tanmoy Cha...
GD
2006
Springer
13 years 11 months ago
Partitions of Graphs into Trees
In this paper, we study the k-tree partition problem which is a partition of the set of edges of a graph into k edge-disjoint trees. This problem occurs at several places with appl...
Therese C. Biedl, Franz-Josef Brandenburg
PRIS
2001
13 years 9 months ago
Image Retrieval Via Isotropic and Anisotropic Mappings
This paper presents an approach for content-based image retrieval via isotropic and anisotropic mappings. Isotropic mappings are defined to be mappings invariant to the action of t...
Qasim Iqbal, Jake K. Aggarwal