Schema Evolution publication categorizer

... class extensions and types is an essential task in database design. In the context of view integration and schema integration for federated ... be merged. Inheritance hierarchies often occur explicitly in object-oriented databases as well as implicitly in relational databases. ...

Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments

... process would be to train a classifier for each category in the master taxonomy, and then classify objects from the source taxonomy into these categories. In this paper we attempt to use a powerful classification method, Support ...

Publication - cat - 07/03/2022 - 23:42 - 0 comments - 1 attachment

... 50 - 99 In this article, we propose a change detection approach in the context of an ontology evolution framework for OWL DL ontologies. The ...

Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments

... 210.74 KB Ontologies are being used nowadays in many areas, including bioinformatics. One of the issues in ontology research is the aligning and merging of ontologies. Tools have ...

Publication - cat - 04/16/2013 - 21:38 - 0 comments - 1 attachment

... of interest arises when S is the class of all instances, in which case an S-inverse is a global inverse. We focus on the important ... we show how to construct an S-inverse when one exists. In particular, we show how to construct a global inverse when one exists. ...

Publication - cat - 04/16/2013 - 18:27 - 0 comments - 1 attachment

... is based on a classification of the constructs used in the known data model into a limited set of types Then on the basis of ... deriving \"good\" translations between schemes and more in general between models Finally we define the architecture and the ...

Publication - huliganka - 04/16/2013 - 15:49 - 0 comments - 1 attachment

... between them. This makes it hard to compare approaches. In this paper, we present a manifesto for research on model merging. We ...

Publication - cat - 04/16/2013 - 13:16 - 0 comments - 1 attachment

... of relationships among data is an important activity in schema integration. The latter can arise as integration of user views In logical database design or as the creation of a global schema from existing ...

Publication - cat - 04/16/2013 - 13:05 - 0 comments - 0 attachments

... representation of multiple data sources. The core problems in schema integration are: schema matching, i.e. the identification of ... certain of its correctness. However, this is impossible in general, thus a human expert always has to validate or modify it. In this ...

Publication - cat - 04/16/2013 - 12:49 - 0 comments - 0 attachments

... Bonifati and Rahm provides an overview of the ways in which the schema and ontology matching and mapping tools have addressed the ...

Publication - cat - 04/16/2013 - 11:49 - 0 comments - 0 attachments

... merging, also called view integration, is a key problem in conceptual modeling. Large models are often constructed and accessed by ... sources and to the merge assumptions related to them. In this paper, we present a framework for merging incomplete and inconsistent ...

Publication - cat - 04/16/2013 - 07:05 - 0 comments - 0 attachments

... form of the constrained distance previously reported in [27]. When applied to ordered trees, the degree-2 distance is a ... and insertions occur at leaves i.e., with degree 1.) In this extended abstract, we present algorithms for computing the degree-2 ...

Publication - huliganka - 04/16/2013 - 06:16 - 0 comments - 0 attachments

... 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

... representation and exchange on the World Wide Web, e.g., in B2B e-commerce. Modern enterprises need to combine data from many sources in order to answer important business questions, creating a need for ...

Publication - cat - 04/16/2013 - 04:38 - 0 comments - 1 attachment

... data: given a source instance I of a schema S expressed in a source model, and a target model TM, it generates a schema S0 expressed in TM that is “equivalent” to S and an instance I0 of S0 “equivalent” ...

Publication - cat - 04/16/2013 - 03:38 - 0 comments - 1 attachment

... require that mappings be executable, expressed in SQL, XSLT, or other data transformation languages. In this paper, we develop a semantics for model-management operators that ...

Publication - admin - 04/16/2013 - 03:27 - 0 comments - 1 attachment

... data integration, and other data management tasks. In many applications, mappings are given by embedded dependencies. In this paper, we study the issues involved in composing such mappings. Our ...

Publication - cat - 04/16/2013 - 03:16 - 0 comments - 1 attachment

... Mapping composition is a fundamental operation in metadata driven applications. Given a mapping over schemas S1 and S2 and ...

Publication - cat - 04/16/2013 - 03:16 - 0 comments - 1 attachment