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SIGMOD
2005
ACM
143views Database» more  SIGMOD 2005»
14 years 8 months ago
Holistic Aggregates in a Networked World: Distributed Tracking of Approximate Quantiles
While traditional database systems optimize for performance on one-shot queries, emerging large-scale monitoring applications require continuous tracking of complex aggregates and...
Graham Cormode, Minos N. Garofalakis, S. Muthukris...
ICDE
2009
IEEE
182views Database» more  ICDE 2009»
14 years 9 months ago
Adaptive Parallelization of Queries over Dependent Web Service Calls
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...
Manivasakan Sabesan, Tore Risch
SIGMOD
2002
ACM
134views Database» more  SIGMOD 2002»
14 years 8 months ago
Wavelet synopses with error guarantees
Recent work has demonstrated the effectiveness of the wavelet decomposition in reducing large amounts of data to compact sets of wavelet coefficients (termed "wavelet synopse...
Minos N. Garofalakis, Phillip B. Gibbons
KDD
2008
ACM
138views Data Mining» more  KDD 2008»
14 years 8 months ago
Quantitative evaluation of approximate frequent pattern mining algorithms
Traditional association mining algorithms use a strict definition of support that requires every item in a frequent itemset to occur in each supporting transaction. In real-life d...
Rohit Gupta, Gang Fang, Blayne Field, Michael Stei...
DEXAW
2004
IEEE
190views Database» more  DEXAW 2004»
13 years 11 months ago
Enabling Distribution and Reuse of Ontology Mapping Information for Semantically Enriched Communication Services
In the past, many attempts have been made to improve the interoperability between different Web-based information systems. In most approaches the remaining problems are still twof...
Eva Gahleitner, Wolfram Wöß