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Schema Evolution
- Model Management (1)
... 1.67 MB Ontologies play a key role in the advent of the Semantic Web. An important problem when dealing ... is the modification of an existing ontology in response to a certain need for change. This problem is a complex and multifaceted one, ...
Publication - cat - 04/17/2013 - 04:27 - 0 comments - 1 attachment
... Castano, S; Peraldi, ISE; A Ferrara,A; Karkaletsis, V; Kaya, A; Möller, R;Montanelli, S;Petasis, G; ... 0 Citations range: ...
Publication - cat - 04/17/2013 - 03:27 - 0 comments - 1 attachment
... KB The Semantic Web mission is to enable a better organization of the Web content to improve the searching, navigation ... machines, the process of creating and maintaining it is a social one: only people, for example, have necessary skills to create and ...
Publication - cat - 04/17/2013 - 03:27 - 0 comments - 1 attachment
... Curino, Carlo A.; Moon, Hjun J.; Tanca, Letizia; Zaniolo, Carlo ... that is at the core of an Information System represents a difficult maintenance problem that has only been studied in the framework ...
Publication - krlis1337 - 04/17/2013 - 02:05 - 0 comments - 1 attachment
... Curino, Carlo A.; Moon, Hyun J.; Zaniolo, Carlo ... migrating the database. Our PRISM system takes a big first step toward addressing this pressing need by providing: (i) a ...
Publication - krlis1337 - 04/17/2013 - 01:38 - 0 comments - 1 attachment
... Fuxman, A.; Hernandez, M.A.; Ho, H.; Miller, R.J.; Papotti, P.; Popa, L. ...
Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment
... Boukottaya, A.; Vanoirbeek, C.; Paganelli, F.; Khaled, O.A. Author: ...
Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment
... 0 Citations range: n/a Attachment Size ... at dierent sources, and providing the user with a unified view of these data. The problem of designing data integra- tion ...
Publication - huliganka - 04/16/2013 - 22:27 - 0 comments - 1 attachment
... of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is played by the ability to ... spanning multiple schema versions. First, we introduce a representation of DW schemata as graphs of simple functional dependencies, ...
Publication - cat - 04/16/2013 - 22:05 - 0 comments - 1 attachment
... 119.55 KB MDM is a tool that enables the users to define schemes of different data models and to ... to another. These functionalities can be at the basis of a customizable and integrated CASE environment supporting the analysis and ... Manager and the Schema Manager. The Model Manager supports a specialized user, the model engineer, in the definition of a variety of ...
Publication - huliganka - 04/16/2013 - 19:27 - 0 comments - 1 attachment
... 177.63 KB 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 ...
Publication - cat - 04/16/2013 - 16:27 - 0 comments - 1 attachment
... two graph-like structures (e.g., XML schemas) and produces a mapping between the nodes of these graphs that correspond semantically to ...
Publication - admin - 04/16/2013 - 14:27 - 0 comments - 1 attachment
... theory. This task, also called “schema matching”, is a crucial step in integrating heterogeneous collections. As schemas may have ... and as schema attributes do not always match precisely, a general-purpose schema mapping approach requires support for uncertain ...
Publication - admin - 04/16/2013 - 14:27 - 0 comments - 1 attachment
... 194.34 KB A customizable and extensible tool is proposed to implement ModelGen, the model management operator that translates a schema from one model to another. A wide family of models is handled, by using a metamodel in which models can be ...
Publication - admin - 04/16/2013 - 14:05 - 0 comments - 1 attachment
... http://www.dit.unitn.it/~p2p/RelatedWork/Matching/A%20Large%20Scale%20Taxonomy%20Mapping%20Evaluation.pdf ... problem of comparison for pairwise matching solutions. A methodology is proposed to overcome the issue of scalability. A large scale ...
Publication - admin - 04/16/2013 - 13:49 - 0 comments - 1 attachment
... 213.73 KB . Schema and ontology matching is a critical problem in many application domains, such as semantic web, ... have been proposed so far. In this paper we present a new classification of schema-based matching techniques that builds on the top ...
Publication - admin - 04/16/2013 - 10:16 - 0 comments - 1 attachment
... The approach translates both schemas and data: given a source instance I of a schema S expressed in a source model, and a target model TM, it generates ...
Publication - cat - 04/16/2013 - 03:38 - 0 comments - 1 attachment