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ALGORITHMICA
2006
93views more  ALGORITHMICA 2006»
13 years 11 months ago
Simultaneous Optimization via Approximate Majorization for Concave Profits or Convex Costs
For multi-criteria problems and problems with poorly characterized objective, it is often desirable to simultaneously approximate the optimum solution for a large class of objecti...
Ashish Goel, Adam Meyerson
ALGORITHMICA
2006
132views more  ALGORITHMICA 2006»
13 years 11 months ago
Straight-Line Drawing Algorithms for Hierarchical Graphs and Clustered Graphs
Hierarchical graphs and clustered graphs are useful non-classical graph models for structured relational information. Hierarchical graphs are graphs with layering structures; clus...
Peter Eades, Qing-Wen Feng, Xuemin Lin, Hiroshi Na...
ALGORITHMICA
2006
100views more  ALGORITHMICA 2006»
13 years 11 months ago
Error Compensation in Leaf Power Problems
The k-Leaf Power recognition problem is a particular case of graph power problems: For a given graph it asks whether there exists an unrooted tree--the k-leaf root--with leaves on...
Michael Dom, Jiong Guo, Falk Hüffner, Rolf Ni...
ALGORITHMICA
2006
109views more  ALGORITHMICA 2006»
13 years 11 months ago
Computing All Immobilizing Grasps of a Simple Polygon with Few Contacts
: We study the output-sensitive computations of all the combinations of the edges and vertices of a simple polygon P that allow a form closure grasp with less than four point conta...
Jae-Sook Cheong, Herman J. Haverkort, A. Frank van...
ALGORITHMICA
2006
138views more  ALGORITHMICA 2006»
13 years 11 months ago
Planar Graph Coloring Avoiding Monochromatic Subgraphs: Trees and Paths Make It Difficult
We consider the problem of coloring a planar graph with the minimum number of colors so that each color class avoids one or more forbidden graphs as subgraphs. We perform a detail...
Hajo Broersma, Fedor V. Fomin, Jan Kratochví...
ALGORITHMICA
2006
96views more  ALGORITHMICA 2006»
13 years 11 months ago
Canonical Forms and Algorithms for Steiner Trees in Uniform Orientation Metrics
We present some fundamental structural properties for minimum length networks (known as Steiner minimum trees) interconnecting a given set of points in an environment in which edg...
Marcus Brazil, D. A. Thomas, J. F. Weng, Martin Za...