Title
Resource constrained distributed constraint optimization using resource constraint free pseudo-tree
Abstract
The Distributed Constraint Optimization Problem (DCOP) is a fundamental formalism for multi-agent cooperation. A dedicated framework called Resource Constrained DCOP (RCDCOP) has recently been proposed. RCDCOP models objective functions and resource constraints separately. A resource constraint is an n-ary constraint that represents the limit on the number of resources of a given type available to agents. Previous research addressing RCDCOPs employs the Adopt algorithm, which is a basic solver for DCOPs. In this paper we propose another version of the Adopt algorithm for RCDCOP using a pseudo-tree that is generated ignoring resource constraints. The key ideas of our work are as follows: (i) The pseudo-tree is generated ignoring resource constraints. (ii) Virtual variables are introduced, representing the usage of resources. These virtual variables are used to share resources among sub-trees. These ideas are used to extend Adopt. The proposed method reduces the previous limitations in the construction of RCDCOP pseudo-trees. The efficiency of our technique depends on the class of problems being considered, and we describe the obtained experimental results.
Year
DOI
Venue
2008
10.5555/1402821.1402884
AAMAS (3)
Keywords
Field
DocType
constraint optimization,resource constraint free pseudo-tree,virtual variable,previous limitation,rcdcop model,rcdcop pseudo-trees,previous research,resource constrained dcop,resource constraint,adopt algorithm,n-ary constraint,share resource,multi agent systems
Constraint satisfaction,Local consistency,Mathematical optimization,Computer science,Constraint programming,Theoretical computer science,Constraint satisfaction problem,Distributed constraint optimization,Constraint logic programming,Binary constraint,Hybrid algorithm (constraint satisfaction),Distributed computing
Conference
Citations 
PageRank 
References 
1
0.35
6
Authors
5
Name
Order
Citations
PageRank
Toshihiro Matsui138062.51
Marius C. Silaghi237547.09
Katsutoshi Hirayama347244.79
Makoto Yokoo43632421.99
Hirohsi Matsuo5131.42