635 search results - page 99 / 127 » Expiring Data in a Warehouse |
ADBIS
2005
Springer
14 years 3 months ago
2005
Springer
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
FOIKS
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. Dimension schemas are abstract models of the data hierarchies that populate OLAP warehouses. Although there is abundant work on schema equivalence in a variety of data mo...
AI
2001
Springer
14 years 2 months ago
2001
Springer
As new transactions update data sources and subsequently the data warehouse, the previously discovered association rules in the old database may no longer be interesting rules in ...
VLDB
1998
ACM
14 years 2 months ago
1998
ACM
This paper describes a massively parallel object relational (O/R) database used in an advanced development program to create a comprehensive medical information system called the ...
DOLAP
2007
ACM
14 years 2 months ago
2007
ACM
Expressing preferences when querying databases is a natural way to avoid empty results and information flooding, and in general to rank results so that the user may first see the ...