-
Lin, M.; Zhang, Z.: Question-driven segmentation of lecture speech text : towards intelligent e-learning systems (2008)
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- Abstract
- Recently, lecture videos have been widely used in e-learning systems. Envisioning intelligent e-learning systems, this article addresses the challenge of information seeking in lecture videos by retrieving relevant video segments based on user queries, through dynamic segmentation of lecture speech text. In the proposed approach, shallow parsing such as part of-speech tagging and noun phrase chunking are used to parse both questions and Automated Speech Recognition (ASR) transcripts. A sliding-window algorithm is proposed to identify the start and ending boundaries of returned segments. Phonetic and partial matching is utilized to correct the errors from automated speech recognition and noun phrase chunking. Furthermore, extra knowledge such as lecture slides is used to facilitate the ASR transcript error correction. The approach also makes use of proximity to approximate the deep parsing and structure match between question and sentences in ASR transcripts. The experimental results showed that both phonetic and partial matching improved the segmentation performance, slides-based ASR transcript correction improves information coverage, and proximity is also effective in improving the overall performance.
-
Wood, A.D.G.: Instructional technology in the business environment (1995)
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- Source
- Multimedia today. 3(1995) no.1, S.18-22
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Koltay, T.: ¬A hypertext tutorial on abstracting for library science students (1995)
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- Date
- 27. 1.1996 18:22:06
-
Thomas, N.R.: Planning and developing cross-platform interactive multimedia library instruction (1997)
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- Date
- 27.11.1995 17:07:22
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Robinson, D.A.; Lester, C.R.; Hamilton, N.M.: Delivering computer assisted learning across the WWW (1998)
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- Date
- 1. 8.1996 22:08:06
-
Goeller, K.E.: Web-based collaborative learning : a perspective on the future (1998)
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- Date
- 1. 8.1996 22:08:06
-
Brusilovsky, P.; Eklund, J.; Schwarz, E.: Web-based education for all : a tool for development adaptive courseware (1998)
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- Date
- 1. 8.1996 22:08:06
-
Kaplowitz, J.; Contini, J.: Computer-assisted instruction : is it an option for bibliographic instruction in large undergraduate survey classes? (1998)
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- Date
- 13. 7.1998 22:01:14
-
Shave, C.: Developing on-line courses : teacher support needs (1998)
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- Date
- 1. 8.1996 22:08:06
-
Jiang, T.: Architektur und Anwendungen des kollaborativen Lernsystems K3 (2008)
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- Date
- 10. 2.2008 14:22:00
-
Wood, F.; Ford, N.; Miller, D.; Sobczyk, G.; Duffin, R.: Information skills, searching behaviour and cognitive styles for student-centred learning : a computer-assisted learning approach (1996)
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- Source
- Journal of information science. 22(1996) no.2, S.79-92
-
Devaul, H.; Diekema, A.R.; Ostwald, J.: Computer-assisted assignment of educational standards using natural language processing (2011)
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- Date
- 22. 1.2011 14:25:32
-
Chianese, A.; Cantone, F.; Caropreso, M.; Moscato, V.: ARCHAEOLOGY 2.0 : Cultural E-Learning tools and distributed repositories supported by SEMANTICA, a System for Learning Object Retrieval and Adaptive Courseware Generation for e-learning environments. (2010)
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- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
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¬The digital university : building a learning community (2002)
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- Date
- 22. 3.2008 14:43:03
