Sciweavers

1261 search results - page 171 / 253
» Approximation algorithms for aligning points
Sort
View
STOC
2004
ACM
88views Algorithms» more  STOC 2004»
16 years 3 months ago
Expander flows, geometric embeddings and graph partitioning
We give a O( log n)-approximation algorithm for sparsest cut, edge expansion, balanced separator, and graph conductance problems. This improves the O(log n)-approximation of Leig...
Sanjeev Arora, Satish Rao, Umesh V. Vazirani
WADS
2005
Springer
114views Algorithms» more  WADS 2005»
15 years 8 months ago
The Multi-radius Cover Problem
An instance of the multi-radius cover problem consists of a graph G = (V, E) with edge lengths l : E → R+ . Each vertex u ∈ V represents a transmission station for which a tra...
Refael Hassin, Danny Segev
DAC
1999
ACM
15 years 7 months ago
Buffer Insertion with Accurate Gate and Interconnect Delay Computation
Buffer insertion has become a critical step in deep submicron design, and several buffer insertion/sizing algorithms have been proposed in the literature. However, most of these m...
Charles J. Alpert, Anirudh Devgan, Stephen T. Quay
ESA
2007
Springer
122views Algorithms» more  ESA 2007»
15 years 6 months ago
A Practical Efficient Fptas for the 0-1 Multi-objective Knapsack Problem
Abstract. In the present work, we are interested in the practical behavior of a new fptas to solve the approximation version of the 0-1 multiobjective knapsack problem. Nevertheles...
Cristina Bazgan, Hadrien Hugot, Daniel Vanderpoote...
COCOON
2008
Springer
15 years 4 months ago
The Computational Complexity of Link Building
We study the problem of adding k new links to a directed graph G(V, E) in order to maximize the minimum PageRank value for a given subset of the nodes. We show that this problem is...
Martin Olsen