Download Databases and Information Systems IV: Selected Papers from by O. Vasilecas, J. Eder, A. Caplinskas PDF

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By O. Vasilecas, J. Eder, A. Caplinskas

This e-book comprises papers that current unique leads to company modeling and company engineering, database learn, facts engineering, facts caliber and knowledge research, IS engineering, net engineering, and alertness of AI equipment. The contributions are from lecturers and practitioners from the full global. The editors desire that the awarded effects will give a contribution to the extra improvement of analysis within the box of databases and data platforms. a few themes of this book are: info Integration tools; facts Mining; information versions and Database layout; disbursed Database concepts and Interoperability; area Ontologies and Concept-Based seek; info platforms and defense; information Warehousing, OLAP, and information Discovery; info platforms, cellular Computing, and brokers; built-in details platforms; clever info brokers; wisdom illustration and information Engineering; wisdom administration; Linguistic elements of data platforms; common sense and Databases; and Metamodels and version pushed structure.

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Grammatically correct) specifications only those that represent state of affairs deemed admissible by a conceptualization of that domain. In the sequel, following [16], we present a formalization of this idea. This formalization compares conceptualizations as intentional structures and metamodels as represented by logical theories. Let us first define a conceptualization C as follows: Definition 1 (conceptualization): A conceptualization C is an intensional structure ¢W,D,ƒ² such that W is a (non-empty) set of possible worlds, D is the domain of individuals and ƒ is the set of n-ary relations (concepts) that are considered in C.

X Father(x) 3. x Father(x) o Person(x) Contrary to L, the resulting language L’ with the amended metamodel T2 has the desirable property that all its valid specifications have logical models that are intended world structures of C. We can summarize the discussion so far as follows. A domain conceptualization C can be understood as describing the set of all possible state of affairs, which are considered admissible in a given universe of discourse U. Let V be a vocabulary whose terms directly correspond to the intensional relations in C.

A certain conceptualization of this domain can be constructed by considering concepts such as Person, Man, Woman, Father, Mother, Offspring, being the father of, being the mother of, among others. , a mental model) of certain facts in reality such as, for instance, that a man named John is the father of another man named Paul. G. Guizzardi / On Ontology, Ontologies, Conceptualizations, Modeling Languages 21 Concept (conceptualization) abstracts represents Symbol (language) refers to Thing (reality) Figure 1.

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