666 search results - page 8 / 134 » New primal-dual algorithms for Steiner tree problems |
ICCAD
2010
IEEE
13 years 8 months ago
2010
IEEE
In this paper, we present an efficient method to solve the obstacle-avoiding rectilinear Steiner minimum tree (OARSMT) problem optimally. Our work is a major improvement over the w...
ICALP
2009
Springer
14 years 10 months ago
2009
Springer
We improve the approximation ratios for two optimization problems in planar graphs. For node-weighted Steiner tree, a classical network-optimization problem, the best achievable ap...
ISAAC
2004
Springer
14 years 3 months ago
2004
Springer
The Steiner tree problem asks for a minimum cost tree spanning a given set of terminals S ⊆ V in a weighted graph G = (V, E, c), c : E → R+ . In this paper we consider a genera...
SODA
2001
ACM
13 years 11 months ago
2001
ACM
Covering and packing integer programs model a large family of combinatorial optimization problems. The current-best approximation algorithms for these are an instance of the basic...
ICCAD
1997
IEEE
14 years 2 months ago
1997
IEEE
In this paper, we study the interconnect layout optimization problem under a higher-order RLC model to optimize not just delay, but also waveform for RLC circuits with non-monoton...