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EDBTW
2006
Springer
15 years 5 months ago
Semantically Correct Query Answers in the Presence of Null Values
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
Loreto Bravo, Leopoldo E. Bertossi
CORR
2010
Springer
147views Education» more  CORR 2010»
14 years 11 months ago
Matching Dependencies with Arbitrary Attribute Values: Semantics, Query Answering and Integrity Constraints
Matching dependencies (MDs) are used to declaratively specify the identification (or matching) of certain attribute values in pairs of database tuples when some similarity conditi...
Jaffer Gardezi, Leopoldo E. Bertossi, Iluju Kiring...
AIIA
2007
Springer
15 years 7 months ago
Instance-Based Query Answering with Semantic Knowledge Bases
A procedure founded in instance-based learning is presented, for performing a form of analogical reasoning on knowledge bases expressed in a wide range of ontology languages. The p...
Nicola Fanizzi, Claudia d'Amato, Floriana Esposito
AIME
2007
Springer
15 years 7 months ago
Using Semantic Web Technologies for Knowledge-Driven Querying of Biomedical Data
Software applications that work with biomedical data have significant knowledge-management requirements. Formal knowledge models and knowledge-based methods can be very useful in m...
Martin J. O'Connor, Ravi Shankar, Samson W. Tu, Cs...
CG
2007
Springer
15 years 1 months ago
Semantic lenses: Seamless augmentation of web pages with context information from implicit queries
We propose a novel method to support analytical processes by visually integrating context information directly into web pages. The context information is obtained from knowledge b...
Martin Rotard, Mark Giereth, Thomas Ertl