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123
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APAL
2010
113views more  APAL 2010»
15 years 3 months ago
Logic for update products and steps into the past
This paper provides a sound and complete proof system for a language Le+Y that adds to Dynamic Epistemic Logic (DEL) a discrete previous-time operator as well as single symbol for...
Joshua Sack
ENTCS
2002
90views more  ENTCS 2002»
15 years 3 months ago
Refactoring in maintenance and development of Z specifications
Once you have proved your refinement correct, that is not the end. Real products, and their accompanying specifications, develop over time, with new improved versions having added...
Susan Stepney, Fiona Polack, Ian Toyn
160
Voted
WWW
2005
ACM
15 years 9 months ago
Incremental maintenance for materialized XPath/XSLT views
This paper proposes an incremental maintenance algorithm that efficiently updates the materialized XPath/XSLT views defined using XPath expressions in XP{[],∗,//,vars} . The al...
Makoto Onizuka, Fong Yee Chan, Ryusuke Michigami, ...
126
Voted
IFL
1997
Springer
153views Formal Methods» more  IFL 1997»
15 years 7 months ago
Common Subexpressions Are Uncommon in Lazy Functional Languages
Common subexpression elimination is a well-known compiler optimisation that saves time by avoiding the repetition of the same computation. In lazy functional languages, referential...
Olaf Chitil
109
Voted
SPE
2008
83views more  SPE 2008»
15 years 3 months ago
Conditioned semantic slicing for abstraction; industrial experiment
raction; Industrial Experiment Martin Ward, , Hussein Zedan
Martin P. Ward, Hussein Zedan, Matthias Ladkau, St...