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» Evaluation of Top-k OLAP Queries Using Aggregate R-Trees
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SIGMOD
1997
ACM
160views Database» more  SIGMOD 1997»
13 years 9 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
SIGIR
2011
ACM
12 years 8 months ago
Picasso - to sing, you must close your eyes and draw
We study the problem of automatically assigning appropriate music pieces to a picture or, in general, series of pictures. This task, commonly referred to as soundtrack suggestion,...
Aleksandar Stupar, Sebastian Michel
PODS
2002
ACM
138views Database» more  PODS 2002»
14 years 5 months ago
Fast Algorithms For Hierarchical Range Histogram Construction
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
Sudipto Guha, Nick Koudas, Divesh Srivastava
DMDW
2000
173views Management» more  DMDW 2000»
13 years 6 months ago
A quality-based framework for physical data warehouse design
Data warehousing is a software infrastructure which supports OLAP applications by providing a collection of tools which allow data extraction and cleaning, data integration and ag...
Mokrane Bouzeghoub, Zoubida Kedad