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  Analysis of Residuating Logic Programs

Hanus, M. (1995). Analysis of Residuating Logic Programs. Journal of Logic Programming, 24(3), 219-245.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-ACE5-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-ACE6-0
Genre: Journal Article

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 Creators:
Hanus, Michael1, Author              
Affiliations:
1Programming Logics, MPI for Informatics, Max Planck Society, escidoc:40045              

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 Abstract: Residuation is an operational mechanism for the integration of functions into logic programming languages. The residuation principle delays the evaluation of functions during the unification process until the arguments are sufficiently instantiated. This has the advantage that the deterministic nature of functions is preserved, but the disadvantage of incompleteness: if the variables in a delayed function call are not instantiated by the logic program, this function can never be evaluated, and some answers which are logical consequences of the program are lost. In order to detect such situations at compile time, we present an abstract interpretation algorithm for this kind of programs. The algorithm approximates the possible residuations and instantiation states of variables during program execution. If the algorithm computes an empty residuation set for a goal, then it is ensured that the concrete execution of the goal does not end with a nonempty set of residuations which cannot be evaluated due to insufficient instantiation of argument variables.

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Language(s): eng - English
 Dates: 2010-03-121995
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 519636
Other: Local-ID: C1256104005ECAFC-F117575B0027A42FC12562BA002DF997-Hanus95JLP
 Degree: -

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Title: Journal of Logic Programming
Source Genre: Journal
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Pages: - Volume / Issue: 24 (3) Sequence Number: - Start / End Page: 219 - 245 Identifier: ISSN: 0743-1066