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» Introduction to Logics for Databases and Information Systems
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VLDB
1991
ACM
126views Database» more  VLDB 1991»
15 years 1 months ago
Deriving Production Rules for Incremental View Maintenance
It is widely recognized that production rules in database systems can be used to automatically maintain derived data such as views. However, writing a correct set of rules for e ci...
Stefano Ceri, Jennifer Widom
SIGMOD
2008
ACM
120views Database» more  SIGMOD 2008»
15 years 9 months ago
Muse: a system for understanding and designing mappings
Schema mappings are logical assertions that specify the relationships between a source and a target schema in a declarative way. The specification of such mappings is a fundamenta...
Bogdan Alexe, Laura Chiticariu, Renée J. Mi...
IHI
2012
217views Healthcare» more  IHI 2012»
13 years 5 months ago
Declarative privacy policy: finite models and attribute-based encryption
Regulations and policies regarding Electronic Health Information (EHI) are increasingly complex. Federal and State policy makers have called for both education to increase stakeho...
Peifung E. Lam, John C. Mitchell, Andre Scedrov, S...
ICDT
2010
ACM
147views Database» more  ICDT 2010»
15 years 1 months ago
Querying Parse Trees of Stochastic Context-Free Grammars
Stochastic context-free grammars (SCFGs) have long been recognized as useful for a large variety of tasks including natural language processing, morphological parsing, speech reco...
Sara Cohen, Benny Kimelfeld
CIKM
2007
Springer
15 years 3 months ago
Conceptual modeling by analogy and metaphor
Metaphor is not merely a rhetorical device, characteristic of language alone, but rather a fundamental feature of the human conceptual system. A metaphor is understood by finding ...
Karin Koogan Breitman, Simone Diniz Junqueira Barb...