Schema Evolution publication categorizer

... a tool, TReMer, for performing the merge operation in a model-driven development setting. Merge is arguably one of the most ... analysis over them. TReMer draws on the theory developed in our earlier work where we describe how a set of models can be merged ...

Publication - cat - 04/17/2013 - 02:38 - 0 comments - 1 attachment

... 666.47 KB Many problems in information integration rely on specifications, called schema mappings, that ... for both relational and nested data are well-known. In this work, we present a new formalism for schema mapping that extends these existing formalisms in two significant ways. First, our nested mappings allow for nesting and ...

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

... Venue:  In Proceedings of the Symposium on Principles of Database Systems (PODS), pages ... have recently been investigated for relational data.In this paper, we start looking into the basic properties of XML data exchange, ...

Publication - hartung - 04/16/2013 - 22:16 - 0 comments - 1 attachment

... where data items originated, but also why they appear in the integration as they do and through what transformation they were derived. This problem is known as data provenance. In this work, we consider data provenance at the schema and mapping level. In ...

Publication - huliganka - 04/16/2013 - 20:49 - 0 comments - 1 attachment

... KB We consider the problem of mapping data in peer-topeer data-sharing systems. Such systems often rely on the use of ... of corresponding values to search for data residing in different peers. In this paper, we address semantic and algorithmic issues ...

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

... when given simple correspondences from table columns in a relational schema to datatype properties of classes in an on- tology. Although the algorithm presented is necessarily heuristic, ...

Publication - admin - 04/16/2013 - 14:05 - 0 comments - 1 attachment

... 202.75 KB . Much data is published on the Web in XML format satisfying schemas, and to make the Semantic Web a reality, such ... from XML schema attributes to datatype properties in the ontology. To accomplish this, we first offer a mapping formalism to ...

Publication - admin - 04/16/2013 - 13:49 - 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

... to translate data from one representation to another. In dynamic environments like the Web, data sources may change not only ... query capabilities. Such changes must be reflected in the mappings. Mappings left inconsistent by a schema change have to be ...

Publication - cat - 04/16/2013 - 10:49 - 0 comments - 1 attachment

... of heterogeneous data transformation and integration. In Clio, we have collected together a powerful set of data management techniques that have proven invaluable in tackling these difficult problems. In this paper, we present the underlying ...

Publication - massmann - 04/16/2013 - 10:38 - 0 comments - 1 attachment