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Agenda. Problem MotivationA scenario: Sharing ProvenanceResearch ObjectiveImplementation ModelDiscussionsConclusionFuture Work. IPAW 2008. 2. Problem Motivation. Provenance is increasingly being used as part of analyses to speed-up the process, extend its scope beyond raw data, and enable handling of very large data sets.Attendant problem: Sharing of provenance informationKeeping this information appropriately but selectively confidential/protectedConfidentiality:

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a model for sharing of confidential provenance information in a query based system


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