550 search results - page 25 / 110 » A Logical Approach to Multidimensional Databases |
DOLAP
1999
ACM
13 years 12 months ago
1999
ACM
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
VLDB
1997
ACM
13 years 11 months ago
1997
ACM
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...
EDBT
2002
ACM
14 years 7 months ago
2002
ACM
Maintaining statistics on multidimensional data distributions is crucial for predicting the run-time and result size of queries and data analysis tasks with acceptable accuracy. To...
ICDT
1990
ACM
13 years 11 months ago
1990
ACM
Ordinary logical implication is not enough for answering queries in a logic database, since especially negative information is only implicitly represented in the database state. M...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
In the classical database world, information access has been based on a paradigm that involves structured, schema-aware, queries and tabular answers. In the current environment, h...