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TGC
2007
Springer
14 years 4 months ago
Elimination of Ghost Variables in Program Logics
Abstract. Ghost variables are assignable variables that appear in program annotations but do not correspond to physical entities. They are used to facilitate specification and ver...
Martin Hofmann, Mariela Pavlova
LOPSTR
2005
Springer
14 years 3 months ago
An Algorithm for Local Variable Elimination in Normal Logic Programs
A variable is local if it occurs in a clause body but not in its head. Local variables appear naturally in practical logic programming, but they complicate several aspects such as ...
Javier Álvez, Paqui Lucio
ASIAN
1999
Springer
99views Algorithms» more  ASIAN 1999»
14 years 2 months ago
Beyond Tamaki-Sato Style Unfold/Fold Transformations for Normal Logic Programs
Unfold/fold transformation systems for logic programs have been extensively investigated. Existing unfold/fold transformation systems for normal logic programs allow only Tamaki-Sa...
Abhik Roychoudhury, K. Narayan Kumar, C. R. Ramakr...
JELIA
2000
Springer
14 years 1 months ago
Considerations on Updates of Logic Programs
Abstract. Among others, Alferes et al. (1998) presented an approach for updating logic programs with sets of rules based on dynamic logic programs. We syntactically redefine dynami...
Thomas Eiter, Michael Fink, Giuliana Sabbatini, Ha...
LOPSTR
1999
Springer
14 years 2 months ago
Roles of Program Extension
Abstract. A formal and effective approach to the extension of the computational behaviour of logic programs is presented. The approach builds upon the following concepts. The exte...
Ralf Lämmel, Günter Riedewald, Wolfgang ...