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VLDB
2005
ACM
139views Database» more  VLDB 2005»
16 years 22 days ago
Statistical Learning Techniques for Costing XML Queries
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
Ning Zhang 0002, Peter J. Haas, Vanja Josifovski, ...
WEBDB
2000
Springer
128views Database» more  WEBDB 2000»
15 years 10 months ago
Architecting a Network Query Engine for Producing Partial Results
The growth of the Internet has made it possible to query data in all corners of the globe. This trend is being abetted by the emergence of standards for data representation, such ...
Jayavel Shanmugasundaram, Kristin Tufte, David J. ...
DLOG
2008
15 years 9 months ago
Taming the Infinite Chase: Query Answering under Expressive Relational Constraints
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
Andrea Calì, Georg Gottlob, Michael Kifer
GEOINFO
2004
15 years 8 months ago
Approximate Spatial Query Processing using Raster Signatures
: Nowadays, the database characteristics, such as the huge volume of data, the complexity of the queries, and even the data availability, can demand minutes or hours to process a q...
Leonardo Guerreiro Azevedo, Rodrigo Salvador Monte...
ADHOC
2005
143views more  ADHOC 2005»
15 years 7 months ago
Active query forwarding in sensor networks
While sensor networks are going to be deployed in diverse application specific contexts, one unifying view is to treat them essentially as distributed databases. The simplest mech...
Narayanan Sadagopan, Bhaskar Krishnamachari, Ahmed...