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» Querying Distributed RDF Data Sources with SPARQL
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ESCIENCE
2007
IEEE
13 years 11 months ago
A Scalable and Efficient Prefix-Based Lookup Mechanism for Large-Scale Grids
Data sources, storage, computing resources and services are entities on Grids that require mechanisms for publication and lookup. A discovery service relies on efficient lookup to...
Philip Chan, David Abramson
TKDE
2010
189views more  TKDE 2010»
13 years 5 months ago
Projective Distribution of XQuery with Updates
—We investigate techniques to automatically decompose any XQuery query—including updating queries specified by the XQuery Update Facility (XQUF)—into subqueries, that can be ...
Ying Zhang, Nan Tang, Peter A. Boncz
ICDE
2009
IEEE
153views Database» more  ICDE 2009»
14 years 9 months ago
Efficient Distribution of Full-Fledged XQuery
Abstract-- We investigate techniques to automatically decompose any XQuery query into subqueries, that can be executed near their data sources; i.e., function-shipping. In this sce...
Ying Zhang, Nan Tang, Peter A. Boncz
INFFUS
2008
175views more  INFFUS 2008»
13 years 7 months ago
Adaptive optimization of join trees for multi-join queries over sensor streams
Data processing applications for sensor streams have to deal with multiple continuous data streams with inputs arriving at highly variable and unpredictable rates from various sour...
Joseph S. Gomes, Hyeong-Ah Choi
IS
2011
13 years 2 months ago
Optimized query routing trees for wireless sensor networks
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...
Panayiotis Andreou, Demetrios Zeinalipour-Yazti, A...