Patrick Giroux

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This paper describes a service-oriented architecture for accessing resources through semantically designed portals called hubs. The services are dedicated to: (a) ontology management, (b) annotation generation from texts based on linguistic or machine learning techniques, (c) persistent storage of ontologies and metadata, and (d) semantic search in(More)
We present a new provenance model for generating <i>fine-grained</i> data and service dependencies within XML data processing workflows. Our approach follows the widely used <i>black box transformation</i> semantics [15] in which service components produce new outputs from their inputs (without transformation). The heart of the model are <i>data dependency(More)
WePIGE illustrates a new approach for extracting fine-grain-ed provenance information from XML artefact-based work-flow executions. The extraction framework relies on the usage of XPath mapping rules for inferring data and service dependency links [2]. This demonstration illustrates the usage of the WePIGE graphical user interface for exploring the(More)
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