Vidal's libraryTitle: | A Scalable Method for Multiagent Constraint Optimization |
Author: | Adrian Petcu and Boi Faltings |
Book Tittle: | Proceedings of the International Joint Conference on Artificial Intelligence |
Pages: | 266--271 |
Month: | aug |
Year: | 2005 |
Abstract: | We present in this paper a new, complete method for distributed constraint optimization, based on dynamic programming. It is a utility propagation method, inspired by the sum-product algorithm, which is correct only for tree-shaped constraint networks. In this paper, we show how to extend that algorithm to arbitrary topologies using a pseudotree arrangement of the problem graph. Our algorithm requires a linear number of messages, whose maximal size depends on the induced width along the particular pseudotree chosen. We compare our algorithm with backtracking algorithms, and present experimental results. For some problem types we report orders of magnitude less messages, and even the ability to deal with arbitrarily large problems. Our algorithm is formulated for optimization problems, but can be easily applied to satisfaction problems as well. |
Cited by 17 - Google Scholar
@InProceedings{petcu05a,
author = {Adrian Petcu and Boi Faltings},
title = {A Scalable Method for Multiagent Constraint
Optimization},
booktitle = {Proceedings of the International Joint Conference on
Artificial Intelligence},
year = {2005},
address = {Edinburgh, Scotland},
month = aug,
pages = {266--271},
abstract = {We present in this paper a new, complete method for
distributed constraint optimization, based on
dynamic programming. It is a utility propagation
method, inspired by the sum-product algorithm, which
is correct only for tree-shaped constraint
networks. In this paper, we show how to extend that
algorithm to arbitrary topologies using a pseudotree
arrangement of the problem graph. Our algorithm
requires a linear number of messages, whose maximal
size depends on the induced width along the
particular pseudotree chosen. We compare our
algorithm with backtracking algorithms, and present
experimental results. For some problem types we
report orders of magnitude less messages, and even
the ability to deal with arbitrarily large
problems. Our algorithm is formulated for
optimization problems, but can be easily applied to
satisfaction problems as well.},
url = {http://jmvidal.cse.sc.edu/library/petcu05a.pdf},
cluster = {15369336249688638382},
keywords = {multiagent dcop}
}
Last modified: Wed Mar 9 10:16:29 EST 2011