Abstract
In this paper we present a contextual representation model of audiovisual (AV) documents for AV information systems. In the first part, we study AV medium, and show that AV intra-document context is always related to a user task seen as a general description task. We then present the AI-Strata model for AV description: audiovisual units (pieces of AV documents) are annotated with annotation elements described in a knowledge base. The annotation elements are connected at the document level. The whole system being considered as a single graph, we define a context of one element as end points of graph-paths starting with this element. In order to control contextual paths, we define the notion of potential graphs as graph-patterns instantiated in the general graph. Finally, we show how these graphs are used in the main task of AV information system: navigation, indexing and retrieval.
This work is partially supported by France Télécom (through CNET/CCETT), research contract No 96 ME 17.
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Prié, Y., Mille, A., Pinon, JM. (1999). A Context-Based Audiovisual Representation Model for Audiovisual Information Systems. In: Bouquet, P., Benerecetti, M., Serafini, L., Brézillon, P., Castellani, F. (eds) Modeling and Using Context. CONTEXT 1999. Lecture Notes in Computer Science(), vol 1688. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48315-2_23
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DOI: https://doi.org/10.1007/3-540-48315-2_23
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