Abstract:
In this paper, we present the integration of a Wiki with lecture recordings using a tool called aofconvert, enabling the students to visually reference lecture recordings...Show MoreMetadata
Abstract:
In this paper, we present the integration of a Wiki with lecture recordings using a tool called aofconvert, enabling the students to visually reference lecture recordings in the Wiki at a precise moment in time of the lecture. This tight integration between a Wiki and lecture materials allows the students to elaborate on the topics they learned in class as well as thoroughly discuss their own aspects of those topics. This technology can enable students to get actively involved in a collaborative learning process. One prerequisite for facilitating this consists in a reliable method for detecting slide transitions in lecture recordings. We describe an improved technique for slide transition detection in video-based/screen-grabbed lecture recordings when the object-based representation is not available. Our experiments demonstrate the accuracy of this new technique. A survey conducted with our students after using the Wiki in class completes this article and demonstrates which technical features are most important for such a Wiki.
Published in: IEEE Transactions on Learning Technologies ( Volume: 4, Issue: 4, Oct.-Dec. 2011)
DOI: 10.1109/TLT.2011.18
Department of Computer Science, Institut für Informatik, Freiburg im Breisgau, Germany
Christoph Hermann graduated in business informatics from the Technical University of Clausthal-Zellerfeld, Germany, in 2005. He is a researcher at the University of Freiburg and project leader for the master online study programme “Intelligent Embedded Microsystems.” His research interests are e-learning, search in lecture recordings, recommender systems for lecture archives and improving teaching with multimedia in gener...Show More
Christoph Hermann graduated in business informatics from the Technical University of Clausthal-Zellerfeld, Germany, in 2005. He is a researcher at the University of Freiburg and project leader for the master online study programme “Intelligent Embedded Microsystems.” His research interests are e-learning, search in lecture recordings, recommender systems for lecture archives and improving teaching with multimedia in gener...View more
Department of Computer Science, Institut für Informatik, Freiburg im Breisgau, Germany
Thomas Ottmann studied mathematics, physics, and mathematical logic at the University of Münster. There he received the PhD (Dr rer nat) degree in mathematical logic in 1971. In 1975, he obtained the Facultas Docendi in informatics from the University of Karlsruhe. From 1976 until 1987, he was a professor for computer science at the University of Karlsruhe. In 1987, he became the founder of the Department for Computer Sci...Show More
Thomas Ottmann studied mathematics, physics, and mathematical logic at the University of Münster. There he received the PhD (Dr rer nat) degree in mathematical logic in 1971. In 1975, he obtained the Facultas Docendi in informatics from the University of Karlsruhe. From 1976 until 1987, he was a professor for computer science at the University of Karlsruhe. In 1987, he became the founder of the Department for Computer Sci...View more
Contents Department of Computer Science, Institut für Informatik, Freiburg im Breisgau, Germany
Christoph Hermann graduated in business informatics from the Technical University of Clausthal-Zellerfeld, Germany, in 2005. He is a researcher at the University of Freiburg and project leader for the master online study programme “Intelligent Embedded Microsystems.” His research interests are e-learning, search in lecture recordings, recommender systems for lecture archives and improving teaching with multimedia in general.
Christoph Hermann graduated in business informatics from the Technical University of Clausthal-Zellerfeld, Germany, in 2005. He is a researcher at the University of Freiburg and project leader for the master online study programme “Intelligent Embedded Microsystems.” His research interests are e-learning, search in lecture recordings, recommender systems for lecture archives and improving teaching with multimedia in general.View more
Department of Computer Science, Institut für Informatik, Freiburg im Breisgau, Germany
Thomas Ottmann studied mathematics, physics, and mathematical logic at the University of Münster. There he received the PhD (Dr rer nat) degree in mathematical logic in 1971. In 1975, he obtained the Facultas Docendi in informatics from the University of Karlsruhe. From 1976 until 1987, he was a professor for computer science at the University of Karlsruhe. In 1987, he became the founder of the Department for Computer Science at the University of Freiburg where he served until his retirement in 2008. During his academic career he had guest positions at many universities all over the world (University of Waterloo (Canada), Dartmouth College (New Hampshire), ETH Zürich (Switzerland), University of Western Australia, Perth). Since 2007, he is the head of the technical committee for Informatics of the German Accreditation agency ASIIN. He is the coauthor and editor of seven books, author and coauthor of more than 150 papers in scientific journals and conference proceedings. His research interests include algorithms and data structures, computational geometry, multimedia systems, and the use of computers for educational purposes. He is a member of the IEEE Computer Society.
Thomas Ottmann studied mathematics, physics, and mathematical logic at the University of Münster. There he received the PhD (Dr rer nat) degree in mathematical logic in 1971. In 1975, he obtained the Facultas Docendi in informatics from the University of Karlsruhe. From 1976 until 1987, he was a professor for computer science at the University of Karlsruhe. In 1987, he became the founder of the Department for Computer Science at the University of Freiburg where he served until his retirement in 2008. During his academic career he had guest positions at many universities all over the world (University of Waterloo (Canada), Dartmouth College (New Hampshire), ETH Zürich (Switzerland), University of Western Australia, Perth). Since 2007, he is the head of the technical committee for Informatics of the German Accreditation agency ASIIN. He is the coauthor and editor of seven books, author and coauthor of more than 150 papers in scientific journals and conference proceedings. His research interests include algorithms and data structures, computational geometry, multimedia systems, and the use of computers for educational purposes. He is a member of the IEEE Computer Society.View more