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SIGMOD
1997
ACM
107views Database» more  SIGMOD 1997»
14 years 1 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
2001
ACM
108views Database» more  SIGMOD 2001»
14 years 9 months ago
PREFER: A System for the Efficient Execution of Multi-parametric Ranked Queries
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
Vagelis Hristidis, Nick Koudas, Yannis Papakonstan...
VLDB
2007
ACM
155views Database» more  VLDB 2007»
14 years 3 months ago
Best Position Algorithms for Top-k Queries
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...
Reza Akbarinia, Esther Pacitti, Patrick Valduriez
BTW
2005
Springer
142views Database» more  BTW 2005»
14 years 2 months ago
Self-Extending Peer Data Management
Abstract: Peer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema,...
Ralf Heese, Sven Herschel, Felix Naumann, Armin Ro...
NGITS
1999
Springer
14 years 1 months ago
Multiplex: A Formal Model for Multidatabases and Its Implementation
The integration of information from multiple databases has been an enduring subject of research for over 20 years, and many different solutions have been attempted or proposed. Mis...
Amihai Motro