Title
Decomposition of distributed nonmonotonic multi-context systems
Abstract
Multi-Context Systems (MCS) are formalisms that enable the inter-linkage of single knowledge bases, called contexts, via bridge rules. Recently, a fully distributed algorithm for evaluating heterogeneous, nonmonotonic MCS was described in [7]. In this paper, we continue this line of work and present a decomposition technique for MCS which analyzes the topology of an MCS. It applies pruning techniques to get economically small representations of context dependencies. Orthogonal to this, we characterize minimal interfaces for information exchange between contexts, such that data transmissions can be minimized. We then present a novel evaluation algorithm that operates on a query plan which is compiled with topology pruning and interface minimization. The effectiveness of the optimization techniques is demonstrated by a prototype implementation, which uses an off-the-shelf SAT solver and shows encouraging experimental results.
Year
DOI
Venue
2010
10.1007/978-3-642-15675-5_5
JELIA
Keywords
Field
DocType
nonmonotonic mcs,nonmonotonic multi-context system,bridge rule,novel evaluation algorithm,topology pruning,pruning technique,context dependency,decomposition technique,multi-context systems,data transmission,knowledge base,distributed algorithm,sat solver,context dependent,information exchange
Biconnected component,Computer science,Boolean satisfiability problem,Information exchange,Theoretical computer science,Distributed algorithm,Minification,Rotation formalisms in three dimensions,Query plan,Distributed computing
Conference
Volume
ISSN
ISBN
6341
0302-9743
3-642-15674-6
Citations 
PageRank 
References 
10
0.64
15
Authors
5
Name
Order
Citations
PageRank
Seif El-Din Bairakdar1231.21
Minh Dao-Tran239520.39
Thomas Eiter37238532.10
Michael Fink4114562.43
Thomas Krennwallner546829.14