Fundamentals of database systems
Fundamentals of database systems
A translation approach to portable ontology specifications
Knowledge Acquisition - Special issue: Current issues in knowledge modeling
Object-oriented modeling and design for database applications
Object-oriented modeling and design for database applications
Efficient evaluation of queries in a mediator for WebSources
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Conceptual modelling of web sites for end-users
World Wide Web
Querying Heterogeneous Information Sources Using Source Descriptions
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
Optimized Seamless Integration of Biomolecular Data
BIBE '01 Proceedings of the 2nd IEEE International Symposium on Bioinformatics and Bioengineering
Towards heterogeneous multimedia information systems: the Garlic approach
RIDE '95 Proceedings of the 5th International Workshop on Research Issues in Data Engineering-Distributed Object Management (RIDE-DOM'95)
Scaling heterogeneous databases and the design of Disco
ICDCS '96 Proceedings of the 16th International Conference on Distributed Computing Systems (ICDCS '96)
XWebSOGO: an ontology language to describe and query web sources
WIDM '03 Proceedings of the 5th ACM international workshop on Web information and data management
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Based on the limitations raised by existing approaches in the context of the Semantic Web, we propose a formalism, Web Sources Global Ontology (WebSOGO), a data meta-model for the description of Web sources in terms of content, query-processing capabilities, service and navigation information. WebSOGO is formalized in the Object-Oriented paradigm using the Unified Modeling Language (UML). We also describe WebSOGO-S, a multi-layered system that will allow agents to discover, execute and compose Web sources through queries against a WebSOGO catalog of source ontologies. The UML specification of WebSOGO has been mapped to the Object-Relational (OR) model in Oracle; we define an Oracle cartridge with a list of types and methods that allow the specification of SQL queries against the WebSOGO catalog. By using the JDBC and ODBC drivers provided by Oracle, any agent or application will be able to contact WebSOGO-S.