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GC
2010
Springer
13 years 7 months ago
Degree Bounded Spanning Trees
In this paper, we give a sufficient condition for a graph to have a degree bounded spanning tree. Let n ≥ 1, k ≥ 3, c ≥ 0 and G be an n-connected graph. Suppose that for eve...
Jun Fujisawa, Hajime Matsumura, Tomoki Yamashita
OWLED
2007
13 years 10 months ago
Combining OWL with RCC for Spatioterminological Reasoning on Environmental Data
A new approach to spatioterminological reasoning is presented which is based on a hybrid knowledge representation system architecture and on a representation of the RCC family tree...
Rolf Grütter, Bettina Bauer-Messmer
DAS
2006
Springer
14 years 15 days ago
Structural Analysis of Mathematical Formulae with Verification Based on Formula Description Grammar
In this paper, a reliable and efficient structural analysis method for mathematical formulae is proposed for practical mathematical OCR. The proposed method consists of three steps...
Seiichi Toyota, Seiichi Uchida, Masakazu Suzuki
ESA
2005
Springer
93views Algorithms» more  ESA 2005»
14 years 2 months ago
New Tools and Simpler Algorithms for Branchwidth
Abstract. We provide new tools, such as k-troikas and good subtreerepresentations, that allow us to give fast and simple algorithms computing branchwidth. We show that a graph G ha...
Christophe Paul, Jan Arne Telle
COMPGEOM
2011
ACM
13 years 12 days ago
Integer representations of convex polygon intersection graphs
Abstract. We study the grid size that is needed to represent intersection graphs of convex polygons. Here the polygons are similar to a base polygon P whose corners have rational c...
Tobias Müller, Erik Jan van Leeuwen, Jan van ...