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» Approximation Algorithms for Some Graph Partitioning Problem...
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WEA
2005
Springer
107views Algorithms» more  WEA 2005»
15 years 7 months ago
Local Clustering of Large Graphs by Approximate Fiedler Vectors
Vectors [Extended Abstract] Pekka Orponen and Satu Elisa Schaeffer Laboratory for Theoretical Computer Science, P.O. Box 5400 FI-02015 TKK Helsinki University of Technology, Finlan...
Pekka Orponen, Satu Elisa Schaeffer
COMPGEOM
2004
ACM
15 years 7 months ago
Deformable spanners and applications
For a set S of points in Rd, an s-spanner is a graph on S such that any pair of points is connected via some path in the spanner whose total length is at most s times the Euclidea...
Jie Gao, Leonidas J. Guibas, An Nguyen
WADS
2001
Springer
86views Algorithms» more  WADS 2001»
15 years 6 months ago
Practical Approximation Algorithms for Separable Packing Linear Programs
Abstract. We describe fully polynomial time approximation schemes for generalized multicommodity flow problems arising in VLSI applications such as Global Routing via Buffer Block...
Feodor F. Dragan, Andrew B. Kahng, Ion I. Mandoiu,...
SIAMCO
2002
121views more  SIAMCO 2002»
15 years 1 months ago
Consistent Approximations and Approximate Functions and Gradients in Optimal Control
As shown in [7], optimal control problems with either ODE or PDE dynamics can be solved efficiently using a setting of consistent approximations obtained by numerical discretizati...
Olivier Pironneau, Elijah Polak
CORR
2006
Springer
90views Education» more  CORR 2006»
15 years 2 months ago
The Snowblower Problem
Abstract: We introduce the snowblower problem (SBP), a new optimization problem that is closely related to milling problems and to some material-handling problems. The objective in...
Esther M. Arkin, Michael A. Bender, Joseph S. B. M...