Title :
Question answering on lecture videos: a multifaceted approach
Author :
Cao, Jinwei ; Nunamaker, Jay F., Jr.
Author_Institution :
Dept. of Manage. Inf. Syst., Arizona Univ., Tucson, AZ, USA
Abstract :
In this paper, we introduce a multifaceted approach for question answering on lecture videos. Text extracted from PowerPoint slides associated with the lecture videos is used as a source of domain knowledge to boost the answer extraction performance on these domain specific videos. The three steps of this approach are described and the evaluation plan is discussed.
Keywords :
feature extraction; information filters; information retrieval; speech processing; video signal processing; domain knowledge; information retrieval; lecture videos; multifaceted approach; phonetic transcript error correction; question answering system; text extraction; Algorithm design and analysis; Content based retrieval; Data mining; Information retrieval; Layout; Management information systems; Permission; Speech recognition; Streaming media; Videos;
Conference_Titel :
Digital Libraries, 2004. Proceedings of the 2004 Joint ACM/IEEE Conference on
Print_ISBN :
1-58113-832-6
DOI :
10.1109/JCDL.2004.1336123
