A Query Algebra for Fragmented XML Stream Data

The increased usage of mobile devices coupled with an unprecedented demand for information has pushed the scalability problem of pull-based data service to the focus. A broadcast model of streaming data over a wireless medium has been proposed to be a viable alternative for information dissemination. In the streaming broadcast model, servers broadcast data in an asynchronous and unacknowledged mode while clients process personalized and complex queries locally, relieving the load on the server. We address the query processing of streamed XML data, which is fragmented into manageable chunks for easier synchronization. Although there has been some work done in defining algebras that model XQueries on XML documents, no work has been done in defining query algebras for fragmented XML stream data. We define a model for processing fragmented XML stream data, using the concept of holes and fillers. This model offers the flexibility required by the server to disseminate data in manageab...

• Type: Conference
• Year: 2003
• Where: DBPL
• Authors: Sujoe Bose, Leonidas Fegaras, David Levine, Vamsi Chaluvadi
• Keywords: DBPL 2003, Fragmented Xml Stream, Streamed Xml Data, XML Stream Data