Applications of Declarative Programming and Knowledge - download pdf or read online

By Terrance Swift (auth.), Salvador Abreu, Dietmar Seipel (eds.)

ISBN-10: 3642205887

ISBN-13: 9783642205880

This publication constitutes the completely refereed post-conference lawsuits of the 18th foreign convention on functions of Declarative Programming and data administration, INAP 2009, held in Évora, Portugal, in November 2009. The 12 revised complete papers offered including 2 invited talks have been conscientiously reviewed and chosen in the course of rounds of reviewing and development. The convention comprehensively covers the effect of programmable common sense solvers within the net society, its underlying applied sciences, and cutting edge purposes in undefined, trade, executive, and societal companies. the subjects of the chosen papers be aware of 3 at the moment very important fields: foundations and extensions of common sense programming, databases and question languages, declarative programming with common sense languages, and purposes thereof.

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Extra info for Applications of Declarative Programming and Knowledge Management: 18th International Conference, INAP 2009, Évora, Portugal, November 3-5, 2009, Revised Selected Papers

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34 A. Porto Now A [[ child ]]tperson can be a set with more than one member. Since the default interpretation of constraints is existential, as expressed in equation 3, the constraint sex/child=f is interpreted as “with (at least) one daughter”. It becomes necessary to introduce extra syntax for signalling universal quantification; we do this by enclosing the (generalized) attribute chain in braces. So, we can ask for persons having no sons with person$({sex/child}=f). Supposing person with an attribute age, and son defined analogously to daughter, we may ask person$({age/daughter}>{age/son}) for those whose daughters are older than any son.

92–109. Springer, Heidelberg (2002) 2. : High-level interaction with relational databases in logic programming. , Swift, T. ) PADL 2009. LNCS, vol. 5418, pp. 152–167. Springer, Heidelberg (2008) 3. : Logic Programming and Databases. Springer, Heidelberg (1990) 4. : Deductive database languages: problems and solutions. ACM Comput. Surv. 31(1), 27–62 (1999) 5. : Logical foundations of object-oriented and framebased languages. Journal of the ACM 42(1), 741–843 (1995) 6. : Prolog-based meta-rules for relational database representation and manipulation.

Deletion is similarly powerful, but presents more occasion for ambiguity and inconsistency. Deleting a concept instance implies, much as for identity updates, to chase dependencies in order to eliminate the instance from the database. But while this is sound for sub-concepts and derived concepts (those where it is just part of the identity), what about super-concepts and dependent concepts (those where it is a dependent attribute)? In both cases we may have a strong or weak reading of the deletion, respectively deleting or not the super-instance or derived concept.

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Applications of Declarative Programming and Knowledge Management: 18th International Conference, INAP 2009, Évora, Portugal, November 3-5, 2009, Revised Selected Papers by Terrance Swift (auth.), Salvador Abreu, Dietmar Seipel (eds.)


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