173 search results - page 33 / 35 » Consistent Query Answering in Data Warehouses |
JAPLL
2008
13 years 9 months ago
2008
We introduce a general framework for reasoning with prioritized propositional data by aggregation of distance functions. Our formalism is based on a possible world semantics, wher...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Increasing popularity of XML in recent years has generated much interest in query processing over graph-structured data. To support efficient evaluation of path expressions, many ...
CIKM
2005
Springer
14 years 3 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
WWW
2008
ACM
14 years 10 months ago
2008
ACM
The World Wide Web Consortium's RDF standard primarily consists of (subject,property,object) triples that specify the value that a given subject has for a given property. How...
PAKDD
1999
ACM
14 years 1 months ago
1999
ACM
Empirical equations are an important class of regularities that can be discovered in databases. In this paper we concentrate on the role of equations as de nitions of attribute val...