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Report (Bericht) zugänglich unter
A calculus for higher-order concurrent constraint programming with deep guards
URN: urn:nbn:de:bsz:291-scidok-38051
URL: http://scidok.sulb.uni-saarland.de/volltexte/2011/3805/
Quelle:
(1994) Kaiserslautern ; Saarbrücken : DFKI, 1994
pdf-Format:
Dokument 1.pdf (264 KB)
SWD-Schlagwörter:
Künstliche Intelligenz
Institut:
DDC-Sachgruppe:
Informatik
Dokumentart:
Report (Bericht)
Schriftenreihe:
Research report / Deutsches Forschungszentrum für Künstliche Intelligenz [ISSN 0946-008x]
Bandnummer:
94-03
Sprache:
Englisch
Erstellungsjahr:
1994
Publikationsdatum:
05.07.2011
Kurzfassung auf Englisch:
We present a calculus providing an abstract operational semantics forhigher-order concurrent constraint programming. The calculus isparameterized with a first-order constraint system and provides first-class abstraction, guarded disjunction, committed-choice, deepguards, dynamic creation of unique names, and constraint communication.The calculus comes with a declarative sublanguage for which computation amounts to equivalence transformation of formulas. The declarative sublanguage can express negation. Abstractions are referred to by names, which are first-class values. This way we obtain a smooth and straight forward combination of first-order constraints with higher-order programming. Constraint communication is asynchronous and exploits the presence of logic variables. It provides a notion of state that is fully compatible with constraints and concurrency. The calculus serves as the semantic basis of Oz, a programming language and system under development at DFKI.
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