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VLDB
2007
ACM
124views Database» more  VLDB 2007»
16 years 13 days ago
Ad-hoc Top-k Query Answering for Data Streams
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
Gautam Das, Dimitrios Gunopulos, Nick Koudas, Niko...
CIKM
2005
Springer
15 years 8 months ago
Fast on-line index construction by geometric partitioning
Inverted index structures are the mainstay of modern text retrieval systems. They can be constructed quickly using off-line mergebased methods, and provide efficient support for ...
Nicholas Lester, Alistair Moffat, Justin Zobel
SIGMOD
2003
ACM
162views Database» more  SIGMOD 2003»
16 years 6 months ago
DBGlobe: a service-oriented P2P system for global computing
The challenge of peer-to-peer computing goes beyond simple file sharing. In the DBGlobe project, we view the multitude of peers carrying data and services as a superdatabase. Our ...
Evaggelia Pitoura, Serge Abiteboul, Dieter Pfoser,...
SIGMOD
1997
ACM
107views Database» more  SIGMOD 1997»
15 years 10 months ago
Range Queries in OLAP Data Cubes
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
Ching-Tien Ho, Rakesh Agrawal, Nimrod Megiddo, Ram...
SIGMOD
2009
ACM
214views Database» more  SIGMOD 2009»
16 years 6 months ago
DDE: from dewey to a fully dynamic XML labeling scheme
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...
Liang Xu, Tok Wang Ling, Huayu Wu, Zhifeng Bao