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An introduction to schema versioning in OODBMS

... overview has been published so far. Secondly, the study of a general application scenario led us to a list of requirements. We propose a general framework based on schema ...

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

Alignment of biomedical ontologies using life science literature

... ontologies based on life science literature. We propose a basic algorithm as well as extensions that take the structure of the ...

Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment

A Framework for Aligning Ontologies

... the ontologies need to be aligned. Currently, there exist a number of systems that support users in aligning ontologies, but not many ... have been performed. In this paper we present a general framework for aligning ontologies where different alignment ... we exemplify the use of the framework by describing a system (SAMBO) that is developed according to this framework. Within this ...

Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment

Management of Executable Schema Mappings for XML Data Exchange

... schema evolution. The novelty of this paper consists in a method for automatic generation of automappings (automorphisms) from key ... some missing or incomplete data may be inferred. A well-defined executable semantics for mappings and operations on mappings ...

Publication - huliganka - 04/17/2013 - 11:27 - 0 comments - 0 attachments

A Coevolution Approach for Database Schemas and Related Ontologies

... Kupfer, A Eckstein, S ... integration and meta-databases, by connecting databases on a semantical level. Still, everything fails when one of the database schemas ...

Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments

X-SOM: A Flexible Ontology Mapper

... Curino, Carlo A.; Orsi, Giorgio; Tanca, Letizia ... - 49 System interoperability is a well known issue, especially for heterogeneous information systems, where ...

Publication - krlis1337 - 04/17/2013 - 10:38 - 0 comments - 0 attachments

Improving search and navigation by combining Ontologies and Social Tags

... Bindelli, Silvia; Criscione, Claudio; Curino, Carlo A.; Drago, Mauro L.; Eynard, Davide; Orsi, Giorgio ... of enabling complex autonomous applications to reason on a machine-processable version of the World Wide Web. This, however, would ...

Publication - krlis1337 - 04/17/2013 - 04:27 - 0 comments - 0 attachments

Defining Metrics for Conceptual Schema Evolution

... 273.6 KB It is generally believed that a well-designed Conceptual Schema will remain stable over time. However, ... needs and database structures. This paper sets up a framework for stability of conceptual schemas and proceeds to develop a set ...

Publication - cat - 04/17/2013 - 04:16 - 0 comments - 1 attachment

Critical Points for Interactive Schema Matching

... use of computers to assist in the learning situation in a simulation, game, tutorial, or drill and practice mode is reviewed on an ... an adjunct to support learning is compared to its use in a substitution mode. Evaluative studies of CAI are reviewed and costs are ...

Publication - admin - 04/16/2013 - 17:49 - 0 comments - 1 attachment

Ontology Alignment: An annotated Bibliography

... the topics mentioned above. We did not attempt to compile a comprehensive bibliography and hence the list in this abstract is necessarily incomplete. Rather, we tried to sketch a map of the field, with some specific reference to help interested readers in ...

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

Managing the History of Metadata in support for DB Archiving and Schema Evolution

... Curino, Carlo A.; Moon, Hyun J.; Zaniolo, Carlo ... We then introduce the Historical Metadata Manager (HMM), a tool designed to facilitate the process of documenting and querying the ...

Publication - krlis1337 - 04/16/2013 - 10:05 - 0 comments - 0 attachments

Optimizing Performance of Schema Evolution Sequences

... More than ever before schema transformation is a prevalent problem that needs to be addressed to accomplish for example the ... Such schema transformations are typically composed of a sequence of schema evolution operations. The execution of such sequences can ...

Publication - cat - 04/16/2013 - 07:49 - 0 comments - 1 attachment

Once upon a time a DTD evolved into another DTD...

... and data exchange over the web. In many applications a schema is associated with an XML document to specify and enforce the ... the document. The schema may change over time to reflect a change in the real-world, a change in the user's requirements, mistakes or ...

Publication - cat - 04/16/2013 - 06:49 - 0 comments - 1 attachment

Automating Database Schema Evolution in Information System Upgrades

... incessant problems in the life of information systems and a major stumbling block that prevent graceful upgrades. Furthermore, our ... and avoids down-time. Toward this goal, we have assembled a large testbed of schema evolution histories, and developed a language of ...

Publication - krlis1337 - 04/16/2013 - 05:16 - 0 comments - 0 attachments

Facilitating database attribute domain evolution using mesodata

... KB Database evolution can be considered a combination ofschema evolution, in which the structure evolves with the ... and/or range of allowable values changes. We present a model in which mesodata – an additional domain definition layer containing ...

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

A Framework for Schema Evolution by Meta Object Manipulation

... completely lack schema evolution facilities, or offer a restricted set of special purpose schema evolution operators supporting ...

Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments

Using annotations from controlled vocabularies to find meaningful associations

... Life Science Link) methodology that provides users with a set of tools to explore the rich Web of interconnected and annotated objects ... and to identify meaningful associations. Consider a physical link between objects in two repositories, where each of the objects ...

Publication - hartung - 04/15/2013 - 23:05 - 0 comments - 0 attachments

Software Evolution through Dynamic Adaptation of Its OO Design

... Cazzola, W; Ghoneim, A; Saake, G Author:  ... W Ghoneim, A Saake, G ...

Publication - cat - 04/15/2013 - 21:16 - 0 comments - 1 attachment

Conceptual XML Schema Evolution --- the CoDEX Approach for Design and Redesign

... spec- ify the evolution steps for an XML schema or a DTD. This article will show that schema evolution can also be realized on a conceptual model. Schema evolution always requires propagating the changes ...

Publication - hartung - 04/15/2013 - 20:49 - 0 comments - 0 attachments