2009

referat

angielski

EN We present an ontology-oriented approach to formulate que- ries in XML data integrating system in P2P environment. In this approach, XML schema trees (tree-pattern schemas) are annotated in a global domain ontology by terms of some OWL categories. The annotations are then used to two purposes: (1) to infer mappings between local XML schemas, and (2) to create local ”ontology views” which can be queried by users. We propose a set of rules for inferring mappings between XML schemas based on semantic relationships between terms used for annotating these schemas. Queries are issued against the local ontology using a user-friendly GUI. The query is answered in the local data source as well as in semantically connected data sources in a distributed P2P connected system. In this way the following objectives are accomplished: (1) queries can be formulated in a natural way conforming to the user’s understanding of the application domain; (2) queries are executed in a dynamic P2P system, where answers are obtained from many data sources semantically connected by means of mappings between their schemas; (3) queries are efficiently executed by translating them into XQuery programs.

834 - 843

10.1007/978-3-642-01665-3_84

https://link.springer.com/chapter/10.1007/978-3-642-01665-3_84

Agent and Multi-Agent Systems: Technologies and Applications. Third KES International Symposium, KES-AMSTA 2009, Uppsala, Sweden, June 3-5, 2009, Proceedings

3rd KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications, KES-AMSTA 2009, 3-5.06.2009, Uppsala, Sweden