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» Minimum Weight Pseudo-Triangulations
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COCOON
2009
Springer
13 years 3 months ago
An FPTAS for the Minimum Total Weighted Tardiness Problem with a Fixed Number of Distinct Due Dates
Given a sequencing of jobs on a single machine, each one with a weight, processing time, and a due date, the tardiness of a job is the time needed for its completion beyond its du...
George Karakostas, Stavros G. Kolliopoulos, Jing W...
COMGEO
2002
ACM
13 years 5 months ago
Quadtree, ray shooting and approximate minimum weight Steiner triangulation
We present a quadtree-based decomposition of the interior of a polygon with holes. The complete decomposition yields a constant factor approximation of the minimum weight Steiner ...
Siu-Wing Cheng, Kam-Hing Lee
DCC
1999
IEEE
13 years 5 months ago
Minimum Weight and Dimension Formulas for Some Geometric Codes
Neil J. Calkin, Jennifer D. Key, Marialuisa J. de ...
COMBINATORICS
2002
90views more  COMBINATORICS 2002»
13 years 5 months ago
Ternary Constant Weight Codes
Let A3(n, d, w) denote the maximum cardinality of a ternary code with length n, minimum distance d, and constant Hamming weight w. Methods for proving upper and lower bounds on A3...
Patric R. J. Östergård, Mattias Svanstr...
DAM
2000
126views more  DAM 2000»
13 years 5 months ago
2-Medians in trees with pos/neg weights
This paper deals with facility location problems with pos=neg weights in trees. We consider two di erent objective functions which model two di erent ways to handle obnoxious faci...
Rainer E. Burkard, Eranda Çela, Helidon Dol...