DAM
2010
13 years 11 months ago
2010
In this paper we propose a new integer programming formulation for the multilevel facility location problem and a novel 3-approximation algorithm based on LP rounding. The linear ...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
The LETOR website contains three information retrieval datasets used as a benchmark for testing machine learning ideas for ranking. Algorithms participating in the challenge are re...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
We present a local algorithm (constant-time distributed algorithm) for finding a 3-approximate vertex cover in bounded-degree graphs. The algorithm is deterministic, and no auxili...
CSDA
2010
13 years 11 months ago
2010
Recently developed adaptive Markov chain Monte Carlo (MCMC) methods have been applied successfully to many problems in Bayesian statistics. Grapham is a new open source implementat...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
Abstract--In this paper, we investigate the use of messagepassing algorithms for the problem of finding the max-weight independent set (MWIS) in a graph. First, we study the perfor...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
In this article we present a method for formally proving the correctness of the lazy algorithms for computing homographic and quadratic transformations -- of which field operations...
CORR
2010
Springer
13 years 11 months ago
2010
Springer
Smale's -theory uses estimates related to the convergence of Newton's method to give criteria implying that Newton iterations will converge quadratically to solutions to ...
CORR
2010
Springer
13 years 11 months ago
2010
Springer
Abstract. Aggregation is an important building block of modern distributed applications, allowing the determination of meaningful properties (e.g. network size, total storage capac...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
In many important problems, one uses the median instead of the mean to estimate a population's center, since the former is more robust. But in general, computing the median i...
CORR
2008
Springer
13 years 11 months ago
2008
Springer
This paper introduces a new algorithm for solving a subclass of quantified constraint satisfaction problems (QCSP) where existential quantifiers precede universally quantified ine...