A design framework for Internet-scale event observation and notification
ESEC '97/FSE-5 Proceedings of the 6th European SOFTWARE ENGINEERING conference held jointly with the 5th ACM SIGSOFT international symposium on Foundations of software engineering
Matching events in a content-based subscription system
Proceedings of the eighteenth annual ACM symposium on Principles of distributed computing
Design and evaluation of a wide-area event notification service
ACM Transactions on Computer Systems (TOCS)
Processing XML Streams with Deterministic Automata
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Efficient Filtering of XML Documents for Selective Dissemination of Information
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Efficient filtering of XML documents with XPath expressions
The VLDB Journal — The International Journal on Very Large Data Bases
The view selection problem for XML content based routing
Proceedings of the twenty-second ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
A Scalable Protocol for Content-Based Routing in Overlay Networks
NCA '03 Proceedings of the Second IEEE International Symposium on Network Computing and Applications
Stream processing of XPath queries with predicates
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Path sharing and predicate evaluation for high-performance XML filtering
ACM Transactions on Database Systems (TODS)
Bloom Filter-Based XML Packets Filtering for Millions of Path Queries
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Batched Processing for Information Filters
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
FiST: scalable XML document filtering by sequencing twig patterns
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Predicate-based Filtering of XPath Expressions
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Tree pattern aggregation for scalable XML data dissemination
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Early profile pruning on XML-aware publish-subscribe systems
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Xml data dissemination using automata on top of structured overlay networks
Proceedings of the 17th international conference on World Wide Web
Value-based predicate filtering of XML documents
Data & Knowledge Engineering
Fast XML document filtering by sequencing twig patterns
ACM Transactions on Internet Technology (TOIT)
Distributed structural and value XML filtering
Proceedings of the Fourth ACM International Conference on Distributed Event-Based Systems
Fine-grained parallel XML filtering for content-based publish/subscribe systems
Proceedings of the 5th ACM international conference on Distributed event-based system
FoXtrot: Distributed structural and value XML filtering
ACM Transactions on the Web (TWEB)
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Content-based dissemination of XML data using the publish-subscribe paradigm is an effective means to deliver relevant data to interested data consumers. To meet the performance challenges of content-based filtering and routing, two key optimizations have been developed: the use of efficient indexes to speed up subscription filtering, and the use of effective aggregation algorithms to reduce the number of subscriptions. The effectiveness of both these techniques are, however, limited to locally improving the performance of individual routers. In this paper, we propose a novel and holistic optimization approach that allows a downstream router to leverage the subscription matchings done by upstream routers to reduce its own filtering work. This is achieved by piggybacking useful annotations to the XML document being forwarded. We explore several design options and tradeoffs of this novel optimization approach. Our experimental results demonstrate that our piggyback optimization achieves significant performance improvement under various conditions.