750 search results - page 141 / 150 » Aggregates in Possibilistic Databases |
PODS
2005
ACM
14 years 3 months ago
2005
ACM
Heavy hitters, which are items occurring with frequency above a given threshold, are an important aggregation and summary tool when processing data streams or data warehouses. Hie...
MLDM
2005
Springer
14 years 3 months ago
2005
Springer
In the context of large databases, data preparation takes a greater importance : instances and explanatory attributes have to be carefully selected. In supervised learning, instanc...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
User privacy in location-based services has attracted great interest in the research community. We introduce a novel framework based on a decentralized architecture for privacy pr...
SSDBM
2010
IEEE
14 years 2 months ago
2010
IEEE
With the growing focus on semantic searches and interpretations, an increasing number of standardized vocabularies and ontologies are being designed and used to describe data. We ...
SIGMOD
1999
ACM
14 years 2 months ago
1999
ACM
Pre-computation and materialization of views with aggregate functions is a common technique in Data Warehouses. Due to the complex structure of the warehouse and the different pro...