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WAOA
2007
Springer
170views Algorithms» more  WAOA 2007»
14 years 1 months ago
A 5/3-Approximation for Finding Spanning Trees with Many Leaves in Cubic Graphs
For a connected graph G, let L(G) denote the maximum number of leaves in a spanning tree in G. The problem of computing L(G) is known to be NP-hard even for cubic graphs. We improv...
José R. Correa, Cristina G. Fernandes, Mart...
STOC
2003
ACM
171views Algorithms» more  STOC 2003»
14 years 7 months ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
APPROX
2004
Springer
136views Algorithms» more  APPROX 2004»
14 years 21 days ago
On the Crossing Spanning Tree Problem
Given an undirected n-node graph and a set C of m cuts, the minimum crossing tree is a spanning tree which minimizes the maximum crossing of any cut in C, where the crossing of a c...
Vittorio Bilò, Vineet Goyal, R. Ravi, Mohit...
IPPS
1998
IEEE
13 years 11 months ago
Ultrafast Randomized Parallel Construction and Approximation Algorithms for Spanning Forests in Dense Graphs
We present a rst randomized Ologk n time and On+m work CRCWPRAM algorithm for nding a spanning forest of an undirected dense graph with n vertices. Furthermore we construct a rando...
Anders Dessmark, Carsten Dorgerloh, Andrzej Lingas...
ISPD
2005
ACM
174views Hardware» more  ISPD 2005»
14 years 26 days ago
Fast and accurate rectilinear steiner minimal tree algorithm for VLSI design
In this paper, we present a very fast and accurate rectilinear Steiner minimal tree (RSMT)1 algorithm called FLUTE. The algorithm is an extension of the wirelength estimation appr...
Chris C. N. Chu, Yiu-Chung Wong