Value-Aware RoXSum: Effective Message Aggregation for XML-Aware Information Dissemination

Publish/subscribe (or pub/sub) systems perform asynchronous message transmission, from publishers to subscribers, without any of the parties having knowledge of the other. The pub/sub infrastructure manages the delivery of the messages, which is guided by user subscriptions that specify the type of information the subscribers are interested in. Since XML prevails as the standard for information exchange, efficient XML-aware pub/sub systems become necessary. Within that context, we propose VA-RoXSum, a novel message representation scheme that aggregates the content of messages in a space efficient manner. Coupled with specialized processing algorithms that operate on its aggregated content, the VA-RoXSum enables the batch processing of groups of messages and considerably improves the performance of the subscription-guided filtering task. Our preliminary experiments show that a pub/sub infrastructure with VA-RoXSum achieves up to two orders of magnitude faster matching, compared with s...

• Type: Conference
• Year: 2007
• Where: WEBDB
• Authors: Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
• Keywords: Asynchronous Message Transmission, Efficient Xml-aware Pub/sub, Internet Technology, Pub/sub Infrastructure, WEBDB 2007