Qualified Computations in Functional Logic Programming
- Cite this paper as:
- Caballero R., Rodríguez-Artalejo M., Romero-Díaz C.A. (2009) Qualified Computations in Functional Logic Programming. In: Hill P.M., Warren D.S. (eds) Logic Programming. ICLP 2009. Lecture Notes in Computer Science, vol 5649. Springer, Berlin, Heidelberg
Qualification has been recently introduced as a generalization of uncertainty in the field of Logic Programming. In this paper we investigate a more expressive language for First-Order Functional Logic Programming with Constraints and Qualification. We present a Rewriting Logic which characterizes the intended semantics of programs, and a prototype implementation based on a semantically correct program transformation. Potential applications of the resulting language include flexible information retrieval. As a concrete illustration, we show how to write program rules to compute qualified answers for user queries concerning the books available in a given library.
KeywordsConstraints Functional Logic Programming Program Transformation Qualification Rewriting Logic
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