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SIGMOD
1997
ACM
160views Database» more  SIGMOD 1997»
15 years 5 months ago
Improved Query Performance with Variant Indexes
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...
Patrick E. O'Neil, Dallan Quass
BTW
2007
Springer
236views Database» more  BTW 2007»
15 years 5 months ago
A Classification of Schema Mappings and Analysis of Mapping Tools
: Schema mapping techniques for data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a target schema via ...
Frank Legler, Felix Naumann
EGICE
2006
15 years 5 months ago
Combining Two Data Mining Methods for System Identification
System identification is an abductive task which is affected by several kinds of modeling assumptions and measurement errors. Therefore, instead of optimizing values of parameters ...
Sandro Saitta, Benny Raphael, Ian F. C. Smith
JIIS
2006
76views more  JIIS 2006»
15 years 1 months ago
Holes in joins
A join of two relations in real databases is usually much smaller than their cartesian product. This means that most of the combinations of tuples in the crossproduct of the respe...
Jarek Gryz, Dongming Liang
IJAMC
2010
134views more  IJAMC 2010»
14 years 12 months ago
HyperVerse: simulation and testbed reconciled
—When dealing with dynamic large-scale topologies such as those underlying peer-to-peer (P2P) distributed virtual environments (DVE), one inescapably reaches the point where eith...
Jean Botev, Markus Esch, Hermann Schloss, Ingo Sch...