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17 results

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Ontology change: classification and survey

... 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

Multimedia interpretation for dynamic ontology evolution

... 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

Community-driven ontology evolution based on folksonomies

... 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

Schema Evolution in Wikipedia: toward a Web Information System Benchmark

... 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

Graceful database schema evolution: the prism workbench

... 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

Nested Mappings: Schema Mapping Reloaded

... 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

Automating XML documents transformations: a conceptual modelling based approach

... Boukottaya, A.; Vanoirbeek, C.; Paganelli, F.; Khaled, O.A. Author:  ...

Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment

Data Integration: A Theoretical Perspective

... 0 Citations range:  n/a Attachment Size ... at di‹erent 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

Schema Versioning in Data Warehouses: Enabling Cross-Version Querying via Schema Augmentation?

... 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

MDM: a Multiple-Data-Model Tool for the Management of Heterogeneous Database Schemes

... 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

A semantic approach for schema evolution and versioning in object-oriented databases

... 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

Semantic Schema Matching

... 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

sPLMap: A Probabilistic Approach to Schema Matching

... 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

ModelGen: Model Independent Schema Translation

... 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

A Large Scale Taxonomy Mapping Evaluation

... 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

A Survey of Schema-based Matching Approaches

... 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

Model-Independent Schema and Data Translation

... 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