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Abstract

The main objective of this paper is to present a flexible annotation management framework for a multimedia database system, applied to meeting recordings. Presented research and development activities are carried out within the scope of the IM2 project in which annotations play an important role in describing raw data from various points of view and in enhancing the query process. We focus on a database system capable of managing annotations (e.g. text transcriptions, dialog acts, speaker space position, etc.) and keeping links with raw data (audio, video, digital documents). This database provides a schema evolution mechanism and a meta-description layer ensuring flexible and incremental annotation definitions. To enhance this database system, some research works are currently in progress: a predictive methodology for schema evolution and a query technique that deals with fuzzy concepts and ontological commitments. We describe our on-going prototype development, in which we focus on data storage and interactive data access.

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