✍ Scribed by A. Benczúr; Á.B. Novák; P.Z. Revesz
No coin nor oath required. For personal study only.
ln this paper, there is a review of some knowledgebaso change operators, namely the revision, update, (symmetrical) model-fitting well known in the propositional case and some new problems concerning them. There is an extended set of axioms to avoid a certain problem in connection with revision. Based on the propositional case, we give some generalization of revision for first-order case. Furthermore we define an extension of the propositional knowledgebase to weighted knowledgebase. Finally we deal with the weighted knowledgebase transformations.
📜 SIMILAR VOLUMES
In this paper we study the behaviour of certain integral operators acting on weighted L p spaces. Particular cases include the classical integral transforms of Kontorovich and Lebedev and Mehler and Fock and the F -index transform 2 1 considered by Gonzalez, Hayek, and Negrin.
The aim of this paper is to present the counterpart of the theory of Fourier series in the Mellin setting, thus to consider a finite Mellin transform, or MeUin-Fourier coefficients, together with the associated Mellin-Fourier series. The presentation, in a systematic and overview form, is independen
## Abstract The boundedness of the finite Hilbert transform operator on certain weighted __L~p~__ spaces is well known. We extend this result to give the boundedness of that operator on certain weighted Sobolev spaces. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)