Book ChapterDOI
A Semantic Approach for Schema Evolution and Versioning in Object-Oriented Databases
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It is shown how a general object-oriented model for schema versioning and evolution can be formalized; how the semantics of schema change operations can be defined; how interesting reasoning tasks can be supported, based on an encoding in description logics.Abstract:
In this paper a semantic approach for the specification and the management of databases with evolving schemata is introduced. It is shown how a general object-oriented model for schema versioning and evolution can be formalized; how the semantics of schema change operations can be defined; how interesting reasoning tasks can be supported, based on an encoding in description logics.read more
Citations
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Book ChapterDOI
User-Driven Ontology Evolution Management
TL;DR: This paper identifies a possible six-phase evolution process and introduces the concept of an evolution strategy encapsulating policy for evolution with respect to user?s requirements, focusing on providing the user with capabilities to control and customize it.
Journal ArticleDOI
Ontology change: Classification and survey
Giorgos Flouris,Dimitris Manakanatas,Haridimos Kondylakis,Dimitris Plexousakis,Grigoris Antoniou +4 more
TL;DR: The purpose of this paper is to identify the exact relationships between these research areas and to determine the boundaries of each field, by performing a broad review of the relevant literature.
Journal ArticleDOI
Ontologies for enterprise knowledge management
TL;DR: The authors present an integrated enterprise-knowledge management architecture, focusing on how to support multiple ontologies and manage ontology evolution.
Patent
System and method for dynamic playlist of media
TL;DR: In this paper, a system and methods for the dynamic generation of playlists to a user are provided in connection with a system that convergently merges perceptual and digital signal processing analysis of media entities for purposes of classifying the media entities.
References
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Proceedings ArticleDOI
Semantics and implementation of schema evolution in object-oriented databases
TL;DR: A framework for supporting schema evolution is established, the semantics of schema evolution are defined, and the implementation of the implementation is discussed.
Book ChapterDOI
Practical Reasoning for Expressive Description Logics
TL;DR: An algorithm is presented that decides satisfiability of the DL ACC extended with transitive eind inverse roles, role hierarchies, and quaJifying number restrictions, and early experiments indicate that this algorithm is well-suited for implementation.
Journal ArticleDOI
A consensus glossary of temporal database concepts
Curtis E. Dyreson,Fabio Grandi,Wolfgang Käfer,Nick Kline,Nikos A. Lorentzos,Yannis Mitsopoulos,Angelo Montanari,Daniel Nonen,Elisa Peressi,Barbara Pernici,John F. Roddick,Nandlal L. Sarda,Maria Rita Scalas,Arie Segev,Richard T. Snodgrass,Mike D. Soo,Abdullah Uz Tansel,Paolo Tiberio,Gio Wiederhold +18 more
TL;DR: The glossary meets a need for creating a higher degree of consensus on the definition and naming of temporal database concepts by providing definitions of a wide range of concepts specific to and widely used within temporal databases.
Journal ArticleDOI
A survey of schema versioning issues for database systems
TL;DR: The modelling, architectural and query language issues relating to the support of evolving schemata in database systems and the future directions of schema versioning research are discussed.
Book ChapterDOI
Description logics for conceptual data modeling
TL;DR: A unifying Description Logic is used, which incorporates all the features needed for the logical reformulation of the data models used in the various contexts, and it is demonstrated that several popular data modeling formalisms can be expressed in terms of specific logics of the family.