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» The Complexity of Planarity Testing
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GRAPHICSINTERFACE
2003
15 years 5 months ago
A Tangible Interface for High-Level Direction of Multiple Animated Characters
Many training, education, and visualization environments would benefit from realistic animated characters. Unfortunately, interfaces for character motion specification are often c...
Ronald A. Metoyer, Lanyue Xu, Madhusudhanan Sriniv...
SODA
2000
ACM
114views Algorithms» more  SODA 2000»
15 years 5 months ago
The rectilinear Steiner arborescence problem is NP-complete
Given a set P of points in the first quadrant, a Rectilinear Steiner Arborescence (RSA) is a directed tree rooted at the origin, containing all points in P, and composed solely of...
Weiping Shi, Chen Su
DISOPT
2010
132views more  DISOPT 2010»
15 years 4 months ago
General approximation schemes for min-max (regret) versions of some (pseudo-)polynomial problems
While the complexity of min-max and min-max regret versions of most classical combinatorial optimization problems has been thoroughly investigated, there are very few studies abou...
Hassene Aissi, Cristina Bazgan, Daniel Vanderpoote...
GC
2010
Springer
15 years 2 months ago
Polyhedral Suspensions of Arbitrary Genus
A new class of polyhedra is discovered—bipyramids of arbitrarily prescribed genus. A two-dimensional generalization of Fáry’s Theorem is established. A purely combinatorial de...
Serge Lawrencenko
131
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JDA
2010
95views more  JDA 2010»
15 years 2 months ago
Sigma-local graphs
We introduce and analyze σ-local graphs, based on a definition of locality by Erickson [12]. We present two algorithms to construct such graphs, for any real number σ > 1 an...
Prosenjit Bose, Sébastien Collette, Stefan ...