... Maedche, A.; Motik, B.; Stojanovic, L.; Studer, R.; Volz, R. ... Maedche, A Motik, B ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments
... Pons, A; Keller, R. K. Author: Pons, A Keller, R ...
Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments
... to put into practice this strategy, each component of a database is seen under this architecture as the information base of an information system. Furthermore, a translation information system is considered in order to manage the ... of conceptual elements into logical schema elements. A current Oracle implementation of this architecture is also presented. ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... severe heterogeneity problems. For instance, incorporating a new program in a legacy database application can create an integrity mismatch, since the ...
Publication - huliganka - 04/17/2013 - 12:05 - 0 comments - 1 attachment
... Cleve, A; Henrard, J.; Hainaut, JL; Author: Cleve, A Henrard, J ...
Publication - acleve - 04/17/2013 - 12:05 - 0 comments - 0 attachments
... ontologies based on life science literature. We propose a basic algorithm as well as extensions that take the structure of the ...
Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment
... the ontologies need to be aligned. Currently, there exist a number of systems that support users in aligning ontologies, but not many ... have been performed. In this paper we present a general framework for aligning ontologies where different alignment ... we exemplify the use of the framework by describing a system (SAMBO) that is developed according to this framework. Within this ...
Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment
... to database schemas, to data and to programs through a general strategy. This strategy requires the documentation of database ... techniques. Our approach, called DB-MAIN, relies on a generic database model and on transformational paradigm that states that ... can be modeled by schema transformations. Indeed, a transformation provides both structural and instance mappings that formally ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... schema evolution. The novelty of this paper consists in a method for automatic generation of automappings (automorphisms) from key ... some missing or incomplete data may be inferred. A well-defined executable semantics for mappings and operations on mappings ...
Publication - huliganka - 04/17/2013 - 11:27 - 0 comments - 0 attachments
... integration relies on the alignment of the concepts of a global ontology that describe the domain, with the concepts of the ontologies ... ontology is established, agreements that encode a variety of mappings between concepts are derived. In this way, users can ...
Publication - cat - 04/17/2013 - 11:27 - 0 comments - 0 attachments
... Kupfer, A Eckstein, S ... integration and meta-databases, by connecting databases on a semantical level. Still, everything fails when one of the database schemas ...
Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments
... analysers, and program transformations. We provide a pragmatic, transformation-based approach for expressing and tracking changes ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... the Extensible Markup Language (XML) has been emerging as a standard format for data representation on the web. In many application ... document type definitions (DTDs) are designed to enforce a semantically agreed-upon structure of the XML documents. In XML context, ...
Publication - cat - 04/17/2013 - 09:16 - 0 comments - 0 attachments
... Nandi, A; Bernstein, P Author: Nandi, A Bernstein, P ...
Publication - hartung - 04/17/2013 - 07:16 - 0 comments - 1 attachment
... Scalas, M.R.; Cappelli, A; DeCastro, C. Author: ... M Cappelli, A DeCastro, C ...
Publication - cat - 04/17/2013 - 06:49 - 0 comments - 0 attachments
... Marotta, A; Motz, R; Ruggia, R Author: Marotta, A Motz, R ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 0 attachments
... 273.6 KB It is generally believed that a well-designed Conceptual Schema will remain stable over time. However, ... needs and database structures. This paper sets up a framework for stability of conceptual schemas and proceeds to develop a set ...
Publication - cat - 04/17/2013 - 04:16 - 0 comments - 1 attachment
... on representation technology. This paper introduces a new methodology and transformation process based on the notion of Service, ... system transformation capabilities. MAFRA Toolkit is a specific implementation of MAFRA-Mapping FRAmework, where these new ... between major operators in tourism e-business, MAFRA plays a major role in the specification, representation and reconciliation phases of ...
Publication - admin - 04/16/2013 - 19:27 - 0 comments - 1 attachment
... domain. Consequently, OLAP systems are represented by a multidimensional database schema to adequately reflect the application semantics. FIESTA presents a methodology for the evolution of such multidimensional schemas. Core of the ...
Publication - cat - 04/16/2013 - 18:16 - 0 comments - 1 attachment
... use of computers to assist in the learning situation in a simulation, game, tutorial, or drill and practice mode is reviewed on an ... an adjunct to support learning is compared to its use in a substitution mode. Evaluative studies of CAI are reviewed and costs are ...
Publication - admin - 04/16/2013 - 17:49 - 0 comments - 1 attachment
... Markowitz, Victor; Makowsky, Johann A. Author: ... databases to model information oriented systems. A relational schema consisting of relational schemes, together with key and ...
Publication - erhard - 04/16/2013 - 11:05 - 0 comments - 1 attachment
... rationale behind its evolution. In this paper, we describe a taxonomy of class-evolution profiles, a method for automatically categorizing a system's classes in one (or more) of ...
Publication - cat - 04/16/2013 - 09:27 - 0 comments - 0 attachments
... Lomax, J.; McCray, A.T. Author: ... J McCray, A Year: ...
Publication - hartung - 04/16/2013 - 09:05 - 0 comments - 0 attachments
... More than ever before schema transformation is a prevalent problem that needs to be addressed to accomplish for example the ... Such schema transformations are typically composed of a sequence of schema evolution operations. The execution of such sequences can ...
Publication - cat - 04/16/2013 - 07:49 - 0 comments - 1 attachment
... and data exchange over the web. In many applications a schema is associated with an XML document to specify and enforce the ... the document. The schema may change over time to reflect a change in the real-world, a change in the user's requirements, mistakes or ...
Publication - cat - 04/16/2013 - 06:49 - 0 comments - 1 attachment
