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Title: Beyond tamaki-sato style unfold/fold transformations for normal logic programs
Authors: Roychoudhury, A. 
Narayan Kumar, K.
Ramakrishnan, C.R.
Ramakrishnan, I.V.
Keywords: Logic Programming
Normal Logic Programs
Program Transformations
Unfold/Fold Transformations
Issue Date: 2002
Source: Roychoudhury, A.,Narayan Kumar, K.,Ramakrishnan, C.R.,Ramakrishnan, I.V. (2002). Beyond tamaki-sato style unfold/fold transformations for normal logic programs. International Journal of Foundations of Computer Science 13 (3) : 387-403. ScholarBank@NUS Repository.
Abstract: Unfold/fold transformation systems for logic programs have been extensively investigated. Existing unfold/fold transformation systems for normal logic programs typically fold using a single, non-recursive clause i.e. the folding transformation is very restricted. In this paper we present a transformation system that permits folding in the presence of recursion, disjunction, as well as negation. We show that the transformations are correct with respect to various model theoretic semantics of normal logic programs including the well-founded model and stable model semantics. © 2002 World Scientific Publishing Company.
Source Title: International Journal of Foundations of Computer Science
ISSN: 01290541
DOI: 10.1142/S0129054102001175
Appears in Collections:Staff Publications

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