Schema Evolution publication categorizer

... invalid, and as a result, may become non-interpretable. In this paper, we address precisely this problem, validity of data instances ... one component imply semantic changes to other components in the ontology. Third, we propose a validity identification approach that ...

Publication - cat - 04/17/2013 - 13:27 - 0 comments - 0 attachments

... alignment identifies semantically matching entities in different ontologies. Various ontology alignment strategies have been ... ontology alignment framework, named RiMOM. The key insight in this framework is that similarity characteristics between ontologies may ...

Publication - george - 04/17/2013 - 10:38 - 0 comments - 0 attachments

... ontologies. Here we assume, an ontology is typically given in RDF (Resource Description Framework) or OWL (Web Ontology Language) and can ... ontologies, where N denotes the average number of nodes in each ontology. Our proposed algorithm called Anchor-Flood algorithm, ...

Publication - george - 04/17/2013 - 04:38 - 0 comments - 0 attachments

... a14-sockut.pdf 865.38 KB In practice, any database management system sometimes needs reorganization, that is, a change in some aspect of the logical and/or physical arrangement of a database. In ...

Publication - cat - 04/16/2013 - 19:49 - 0 comments - 1 attachment

... and recover the initial data, or at least part of it. In fact, it would be desirable to find a reverse schema mapping from target to ... that specifies how to bring the exchanged data back. In this article, we introduce the notion of a recovery of a schema mapping: it ...

Publication - cat - 04/16/2013 - 05:49 - 0 comments - 1 attachment

... 10 - 49 In this paper, we discuss the problem of performing impact prediction for changes that occur in the schema/structure of the data warehouse sources. We abstract ... of our approach over real-world ETL workflows used in the Greek public sector. (Data Warehouses, ETL, Evolution, Impact of ...

Publication - gpapas - 04/16/2013 - 04:05 - 0 comments - 0 attachments

... usually show a high degree of heterogeneity and change in their metadata. We propose a platform for collaborative management and ...

Publication - hartung - 04/16/2013 - 00:05 - 0 comments - 0 attachments

... Numerous ontologies have recently been developed in life sciences to support a consistent annotation of biological objects, such ... web interface to explore information about changes in current life science ontologies. It is available at ...

Publication - hartung - 04/15/2013 - 23:27 - 0 comments - 1 attachment