Paper Info
Title
Extending Siena to support more expressive and flexible subscriptions
Abstract
This paper defines and discusses the implementation of two novel extensions to the Siena Content-based Network (CBN) to extend it to become a Knowledge-based Network (KBN) thereby increasing the expressiveness and flexibility of its publications and subscription. One extension provides ontological concepts as an additional message attribute type, onto which subsumption relationships, equivalence, type queries and arbitrary ontological subscription filters can be applied. The second extension provides for a bag type to be used that allows bag equivalence, sub-bag and super-bag relationships to be used in subscription filters, possibly composed with any of the Siena subscription operators or the ontological operators previously mentioned. The performance of this KBN implementation has also been explored. However, to maintain scalability and performance it is important that these extensions do not break Siena's subscription aggregation algorithm. We also introduce the necessary covering relationships for the new types and operators and examine the subscription matching overhead resulting from these new types and operators.
Year
DOI
Venue
2008
10.1145/1385989.1385995
DEBS
Keywords
Field
DocType
subscription filter,ontological concept,flexible subscription,siena content-based network,subscription aggregation algorithm,arbitrary ontological subscription filter,siena subscription operator,new type,extending siena,additional message attribute type,ontological operator,bag type,ontologies,publish subscribe,semantics,knowledge base
Ontology (information science),Ontology,Computer science,Equivalence (measure theory),Operator (computer programming),Semantics,Scalability,Distributed computing,Expressivity
Conference
Citations 
PageRank 
References 
15
0.79
30
Authors
5
Name
Order
Citations
PageRank
John Keeney129332.27
Dominik Roblek2246.12
Dominic Jones3273.79
David Lewis4709.63
Declan O'Sullivan547169.07