Search: a, Schema Evolution, 2009

21 results

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Schema Versioning

... range:  n/a (Schema Evolution) ...

Publication - cat - 01/19/2018 - 18:55 - 0 comments - 0 attachments

Evaluating the validity of data instances against ontology evolution over the Semantic Web

... an ontology, its data instances may become invalid, and as a result, may become non-interpretable. In this paper, we address precisely ... and demonstrate that it is sufficient to validate a data instance against the semantic view rather than the entire ontology. We ...

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

Galaxy: Encouraging data sharing among sources with schema variants

... Mork, P; Seligman, L; Morse, M.;Rosenthal, A; Author:  ... Rosenthal, A. Wolf, C. ...

Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment

The PRISM Workwench: Database Schema Evolution Without Tears

... Curino, Carlo A.; Moon, Hyun J.; Ham, MyungWon; Zaniolo, Carlo ... DEMO PAPER: Information Systems are subject to a perpetual evolution, which is particularly pressing in Web Information ...

Publication - krlis1337 - 04/17/2013 - 11:05 - 0 comments - 0 attachments

Ontology and Schema Evolution in Data Integration: Review and Assessment

... the emergence of new high- throughput tools have led to a new information revolution. The amount and the diversity of the information ... databases and ontologies has been recognized as a cornerstone issue in bringing in legacy data with formal semantic meaning. ...

Publication - cat - 04/17/2013 - 09:49 - 0 comments - 0 attachments

PRIMA: Archiving and Querying Historical Data with Evolving Schemas

... Moon, Hyun J.; Curino, Carlo A.; MyungWon, Ham; Zaniolo, Carlo ... schema version in which they firstly appeared, leading to a perfect archival quality, but to a taxing query interface. The PRIMA ...

Publication - krlis1337 - 04/17/2013 - 07:27 - 0 comments - 0 attachments

Evolva: A Comprehensive Approach to Ontology Evolution

... We tackle the aforementioned issues by proposing Evolva, a comprehensive ontology evolution framework, which handles a complete ontology evolution cycle, and makes use of background knowledge for ...

Publication - cat - 04/17/2013 - 05:49 - 0 comments - 0 attachments

On Detecting High-Level Changes in RDF/S KBs

... ontology in order to store or visualize their deltas is a challenging task for e-science. In this paper, we focus on languages allowing ... can be effectively and efficiently detected. We propose a specific language that provably exhibits those characteristics and provide a ...

Publication - cat - 04/17/2013 - 05:49 - 0 comments - 1 attachment

Oracle Edition-Based Redefinition

... range:  n/a Attachment Size ... 11g Release 2 introduces edition-based redefinition, a revolutionary new capability that allows online application upgrade with ...

Publication - cat - 04/17/2013 - 03:38 - 0 comments - 1 attachment

Online reorganization of databases

... management system sometimes needs reorganization, that is, a change in some aspect of the logical and/or physical arrangement of a database. In traditional practice, many types of reorganization have ...

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

Toward Formal Semantics for Data and Schema Evolution in Data Stream Management Systems

... result streams to standing queries, and often operate in a context where any interruption can lead to data loss. Support for schema ... and Alter Data (data evolution). We characterize how a subset of commonly used query operators in a DSMS act on and propagate these ...

Publication - cat - 04/16/2013 - 08:27 - 0 comments - 0 attachments

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

Rule-based Management of Schema Changes at ETL sources

... Papastefanatos, G.; Vassiliadis, P.; Simitsis, A.; Sellis, T.; Vassiliou, Y. Author:  ... P Simitsis, A Sellis, T ...

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

Policy-regulated Management of ETL Evolution

... Papastefanatos, G.; Vassiliadis, P.; Simitsis, A.; Vassiliou, Y. Author:  ... P Simitsis, A Vassiliou, Y ...

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

tXSchema: Support for data-and schema-versioned XML documents

... range:  n/a Attachment Size ... as it is updated over time or as it accumulates from a streaming data source. A temporal document records the entire history of a ...

Publication - cat - 04/16/2013 - 01:49 - 0 comments - 1 attachment

Efficient Management of Biomedical Ontology Versions

... Kirsten, T; Hartung, M; Gross, A; Rahm, E Author:  ... M Gross, A Rahm, E ...

Publication - hartung - 04/16/2013 - 00:38 - 0 comments - 0 attachments

An evolution-based approach for assessing ontology mappings - A case study in the life sciences

... Thor, A; Hartung, M; Gross, A; Kirsten, T; Rahm, E Author:  ...

Publication - hartung - 04/16/2013 - 00:16 - 0 comments - 1 attachment

Management of Evolving Semantic Grid Metadata Within a Collaborative Platform

... computing resources and data storage, usually show a high degree of heterogeneity and change in their metadata. We propose a platform for collaborative management and maintenance of common metadata for ...

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

Estimating the Quality of Ontology-Based Annotations by Considering Evolutionary Changes

... Gross, A; Hartung, M; Kirsten, T; Rahm, E ... Gross, A Hartung, M ... To study the quality of annotations we propose a generic evaluation approach considering the annotation generation methods ...

Publication - hartung - 04/15/2013 - 23:38 - 0 comments - 0 attachments

OnEX: Exploring changes in life science ontologies

... Hartung, M; Kirsten, T; Gross, A; Rahm, E Author:  ... T Gross, A Rahm, E ...

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

Evolution of the Sequence Ontology terms and relationships

... The Sequence Ontology is an established ontology, with a large user community, for the purpose of genomic annotation. We are reforming ...

Publication - cat - 04/15/2013 - 21:05 - 0 comments - 0 attachments