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FM
1999
Springer
88views Formal Methods» more  FM 1999»
13 years 9 months ago
Refinement Semantics and Loop Rules
Refinement semantics is an alternative to least fixpoint semantics that is more useful for programming. From it we derive a variety of rules for w h i l e-loops, for-loops, and loo...
Eric C. R. Hehner, Andrew M. Gravell
AAAI
1998
13 years 6 months ago
Fixpoint 3-Valued Semantics for Autoepistemic Logic
The paper presents a constructive 3-valued semantics for autoepistemic logic (AEL). We introduce a derivation operator and de ne the semantics as its least xpoint. The semantics is...
Marc Denecker, V. Wiktor Marek, Miroslaw Truszczyn...
APLAS
2010
ACM
13 years 2 months ago
Metric Spaces and Termination Analyses
We present a framework for defining abstract interpreters for liveness properties, in particular program termination. The framework makes use of the theory of metric spaces to defi...
Aziem Chawdhary, Hongseok Yang
CORR
2002
Springer
128views Education» more  CORR 2002»
13 years 5 months ago
The Deductive Database System LDL++
This paper describes the LDL++ system and the research advances that have enabled its design and development. We begin by discussing the new nonmonotonic and nondeterministic cons...
Faiz Arni, KayLiang Ong, Shalom Tsur, Haixun Wang,...
IJCAI
2003
13 years 6 months ago
Terminological Cycles in a Description Logic with Existential Restrictions
Cyclic definitions in description logics have until now been investigated only for description logics allowing for value restrictions. Even for the most basic language which allow...
Franz Baader