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- W40350483 abstract "In this paper we describe an ontology-based information integration approach that is suitable for highly dynamic distributed information sources, such as those available in Grid systems. The main challenges addressed are: 1) information changes frequently and information requests have to be answered quickly in order to provide up-to-date information; and 2) the most suitable information sources have to be selected from a set of different distributed ones that can provide the information needed. To deal with the first challenge we use an information cache that works with an update-on-demand policy. To deal with the second we add an information source selection step to the usual architecture used for ontology-based information integration. To illustrate our approach, we have developed an information service that aggregates metadata available in hundreds of information services of the EGEE Grid infrastructure." @default.
- W40350483 created "2016-06-24" @default.
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- W40350483 date "2007-08-01" @default.
- W40350483 modified "2023-09-22" @default.
- W40350483 title "Active Ontology: An Information Integration Approach for Dynamic Information Sources" @default.
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