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» Extending the Relational Algebra to Capture Complex Objects
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APAL
2008
87views more  APAL 2008»
13 years 8 months ago
Characterising nested database dependencies by fragments of propositional logic
We extend the earlier results on the equivalence between the Boolean and the multivalued dependencies in relational databases and fragments of the Boolean propositional logic. It ...
Sven Hartmann, Sebastian Link
CORR
2011
Springer
173views Education» more  CORR 2011»
13 years 2 months ago
Psi-calculi: a framework for mobile processes with nominal data and logic
The framework of psi-calculi extends the pi-calculus with nominal datatypes for data structures and for logical assertions and conditions. These can be transmitted between processe...
Jesper Bengtson, Magnus Johansson, Joachim Parrow,...
EDBTW
2006
Springer
13 years 11 months ago
A Data and Query Model for Streaming Geospatial Image Data
Abstract. Most of the recent work on adaptive processing and continuous querying of data streams assume that data objects come in the form of tuples, thus relying on the relational...
Michael Gertz, Quinn Hart, Carlos Rueda, Shefali S...
ICDT
2009
ACM
130views Database» more  ICDT 2009»
14 years 8 months ago
Towards a theory of search queries
The need to manage diverse information sources has triggered the rise of very loosely structured data models, known as "dataspace models." Such information management sy...
George H. L. Fletcher, Jan Van den Bussche, Dirk V...
ADC
2006
Springer
139views Database» more  ADC 2006»
14 years 1 months ago
Peer-to-peer form based web information systems
The World Wide Web revolutionized the use of forms in everyday private and business life by allowing a move away from paper forms to easily accessible digital forms. Data captured...
Stijn Dekeyser, Jan Hidders, Richard Watson, Ron A...