Istituto di Scienza e Tecnologie dell'Informazione     
Bolettieri P., Falchi F., Gennaro C., Rabitti F. A digital library framework for reusing e-learning video documents. In: Creating New Learning Experiences on a Global Scale . Second European Conference on Technology Enhanced Learning, EC-TEL 2007 (Crete, Greece, 17-20 September 2007). Proceedings, pp. 444 - 449. Erik Duval, Ralf Klamma and Martin Wolpers (eds.). (Lecture Notes in Computer Science, vol. 4753). Springer Berlin / Heidelberg, 2007.
The objective of this paper is to demonstrate the reuse of digital content, as video documents or PowerPoint presentations, by exploiting existing technologies for automatic extraction of metadata (OCR, speech recognition, cut detection, MPEG-7 visual descriptors, etc.). The multimedia documents and the extracted metadata are then indexed and managed by the Multimedia Content Management System (MCMS) MILOS, specifically developed to support design and effective implementation of digital library applications. As a result, the indexed digital material can be retrieved by means of content based retrieval on the text extracted and on the MPEG-7 visual descriptors (via similarity search), assisting the user of the e-Learning Library (student or teacher) to retrieve the items not only on the basic bibliographic metadata (title, author, etc.).
URL: http://www.springerlink.com/content/xp663760342507p0/fulltext.pdf
DOI: 10.1007/978-3-540-75195-3
Subject MPEG-7
Automatic Extraction
Multimedia Content Management System
Similarity Search
User Interface
H.3.3 Information Search and Retrieval
H.3.7 Digital Libraries

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