Using linguistic knowledge in view integration: toward a third generation of tools
Data & Knowledge Engineering - Special issue: natural language for data bases (workshop 1996)
Designing and mining multi-terabyte astronomy archives: the Sloan Digital Sky Survey
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Heterogeneous Data Source Integration and Evolution
DEXA '02 Proceedings of the 13th International Conference on Database and Expert Systems Applications
Mapping generation for XML data sources: a general framework
WIRI '05 Proceedings of the International Workshop on Challenges in Web Information Retrieval and Integration
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This paper presents Andromeda (Astronomical Data Resources Mediation), an XML-based data mediation system that enables transparent access to astronomical data sources. Transparent access is achieved by a global view that expresses the requirements of a community of users (i.e., astronomers) and data integration mechanisms adapted to astronomical data characteristics. Instead of providing an ad hoc mediator, Andromeda can be configured for giving access to different data sources according to user requirements (data types, content, data quality, and provenance). Andromeda can be also adapted when new sources are added or new requirements are specified. Furthermore, in Andromeda the data integration process is done in a distributed manner, taking advantage of the available computing resources and reducing data communication costs.