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SYRCODIS
2008
184views Database» more  SYRCODIS 2008»
13 years 9 months ago
Towards Cost-based Query Optimization in Native XML Database Management Systems
In the last few years, XML became a de-facto standard for the exchange of structured and semi-structured data. The database research community took this development into account b...
Andreas M. Weiner, Christian Mathis, Theo Här...
TREC
2004
13 years 9 months ago
Melbourne University 2004: Terabyte and Web Tracks
: The University of Melbourne carried out experiments in the Terabyte and Web tracks of TREC 2004. We applied a further variant of our impact-based retrieval approach by integratin...
Vo Ngoc Anh, Alistair Moffat
ICDE
2000
IEEE
168views Database» more  ICDE 2000»
14 years 9 months ago
PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
Paolo Ciaccia, Marco Patella
ICDT
2010
ACM
180views Database» more  ICDT 2010»
14 years 5 months ago
Foundations of SPARQL Query Optimization
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
Michael Schmidt, Michael Meier, Georg Lausen
JIIS
2000
111views more  JIIS 2000»
13 years 7 months ago
Multidimensional Index Structures in Relational Databases
Abstract. Efficient query processing is one of the basic needs for data mining algorithms. Clustering algorithms, association rule mining algorithms and OLAP tools all rely on effi...
Christian Böhm, Stefan Berchtold, Hans-Peter ...