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» Query Answering in Inconsistent Databases
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EDBTW
2010
Springer
14 years 1 months ago
The benefits of the interaction between data warehouses and question answering
Business Intelligence (BI) applications allow their users to query, understand, and analyze existing data within their organizations in order to acquire useful knowledge, thus mak...
Antonio Ferrández, Jesús Peral
PODS
2006
ACM
177views Database» more  PODS 2006»
14 years 10 months ago
Equivalence of queries combining set and bag-set semantics
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
Sara Cohen
PVLDB
2008
117views more  PVLDB 2008»
13 years 8 months ago
Interactive source registration in community-oriented information integration
Modern Internet communities need to integrate and query structured information. Employing current information integration infrastructure, data integration is still a very costly e...
Yannis Katsis, Alin Deutsch, Yannis Papakonstantin...
ISMIS
1994
Springer
14 years 2 months ago
Reasoning About the Safety of Information: From Logical Formalization to Operational Definition
We assume that safety of information stored in a database depends on the reliability of the agents who have performed the insertions in the database. We present a logic S to repres...
Laurence Cholvy, Robert Demolombe, Andrew J. I. Jo...
DASFAA
2003
IEEE
115views Database» more  DASFAA 2003»
14 years 3 months ago
The BofS Solution to Limitations of Approximate Summaries
Data warehouses are of crucial importance to decision-making in competitive organizations. The fact that they store enormous quantities of data is a challenge in what concerns per...
Pedro Furtado, João Pedro Costa