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Uncertainty in Logic Programming has been investigated since about 25 years, publishing papers dealing with various approaches to semantics and different applications. This paper is intended as a first step towards the investigation of uncertainty in Constraint Functional Logic Programming. We revise an early proposal, namely van Emden’s Quantitative Logic Programming [22], and we improve it in two...
Research on the field of uncertainty in logic programming has evolved during the last 25 years. In a recent paper [M. Rodríguez-Artalejo and C.A. Romero-Díaz. Quantitative logic programming revisited. In J. Garrigue and M. Hermenegildo, editors, Functional and Logic Programming (FLOPS'08), volume 4989 of LNCS, pages 272–288. Springer Verlag, 2008] we have revised a classical approach by van Emden's...
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