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» State operators on GMV algebras
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ICDE
1994
IEEE
103views Database» more  ICDE 1994»
13 years 11 months ago
A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
Paul W. P. J. Grefen, Rolf A. de By
TABLEAUX
1997
Springer
13 years 11 months ago
Tableau Methods for PA-Processes
Abstract. PA (Process algebra) is the name that has become common use to denote the algebra with a sequential and parallel operator (without communication), plus recursion. PA-proc...
Richard Mayr
JACM
2007
85views more  JACM 2007»
13 years 7 months ago
The rational numbers as an abstract data type
onal Numbers as an Abstract Data Type1 J A Bergstra2 University of Amsterdam, Informatics Institute, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands J V Tucker3 Department of Com...
Jan A. Bergstra, J. V. Tucker
QEST
2010
IEEE
13 years 5 months ago
The Measurable Space of Stochastic Processes
Abstract--We introduce a stochastic extension of CCS endowed with structural operational semantics expressed in terms of measure theory. The set of processes is organised as a meas...
Luca Cardelli, Radu Mardare
ZUM
2000
Springer
107views Formal Methods» more  ZUM 2000»
13 years 11 months ago
How to Drive a B Machine
The B-Method is a state-based formal method that describes behaviour in terms of MACHINES whose states change under OPERATIONS. The process algebra CSP is an event-based formalism ...
Helen Treharne, Steve Schneider