186 search results - page 33 / 38 » Queries and materialized views on probabilistic databases |
DOLAP
2000
ACM
15 years 1 months ago
2000
ACM
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
CORR
2011
Springer
14 years 4 months ago
2011
Springer
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
VLDB
1999
ACM
15 years 1 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
DEXA
2004
Springer
15 years 2 months ago
2004
Springer
Data integration is the process that gives users access to multiple data sources though queries against a global schema. Semantic heterogeneity has been identified as the most imp...
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ICDE
2006
IEEE
15 years 10 months ago
2006
IEEE
DaWaII (Data Warehouse IntegratIon) is a tool for supporting the various activities related to the integration of multidimensional databases. This problem arises in common scenari...