Sciweavers

1004 search results - page 58 / 201
» Safe Constraint Queries
Sort
View
PVLDB
2010
128views more  PVLDB 2010»
13 years 8 months ago
Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++
Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms a...
Carlo Curino, Hyun Jin Moon, Alin Deutsch, Carlo Z...
PVLDB
2010
151views more  PVLDB 2010»
13 years 8 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
HICSS
2006
IEEE
127views Biometrics» more  HICSS 2006»
14 years 4 months ago
Processing of Data Streams with Prediction Functions
Networks of sensors arise naturally in many different fields, from industrial applications (e.g., monitoring of environmental parameters in a chemical plant) to surveillance appl...
Sergio Ilarri, Ouri Wolfson, Eduardo Mena, Arantza...
CIKM
2004
Springer
14 years 3 months ago
Processing content-oriented XPath queries
Document-centric XML collections contain text-rich documents, marked up with XML tags that add lightweight semantics to the text. Querying such collections calls for a hybrid quer...
Börkur Sigurbjörnsson, Jaap Kamps, Maart...
SCCC
2005
IEEE
14 years 3 months ago
Optimizing repair programs for consistent query answering
Databases may not satisfy integrity constraints (ICs) for several reasons. Nevertheless, in most of the cases an important part of the data is still consistent wrt certain desired...
Mónica Caniupán Marileo, Leopoldo E....