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Collaborative editing for improved usefulness and usability of transcript-enhanced webcasts
Abstract One challenge in facilitating skimming or One challenge in facilitating skimming or browsing through archives of on-line recordings of webcast lectures is the lack of text transcripts of the recorded lecture. Ideally, transcripts would be obtainable through Automatic Speech Recognition (ASR). However, current ASR systems can only deliver, in realistic lecture conditions, a Word Error Rate of around 45% - above the accepted threshold of 25%. In this paper, we present the iterative design of a webcast extension that engages users to collaborate in a wiki-like manner on editing the ASR-produced imperfect transcripts, and show that this is a feasible solution for improving the quality of lecture transcripts. We also present the findings of a field study carried out in a real lecture environment investigating how students use and edit the transcripts. Copyright 2008 ACM. edit the transcripts. Copyright 2008 ACM.
Abstractsub One challenge in facilitating skimming or One challenge in facilitating skimming or browsing through archives of on-line recordings of webcast lectures is the lack of text transcripts of the recorded lecture. Ideally, transcripts would be obtainable through Automatic Speech Recognition (ASR). However, current ASR systems can only deliver, in realistic lecture conditions, a Word Error Rate of around 45% - above the accepted threshold of 25%. In this paper, we present the iterative design of a webcast extension that engages users to collaborate in a wiki-like manner on editing the ASR-produced imperfect transcripts, and show that this is a feasible solution for improving the quality of lecture transcripts. We also present the findings of a field study carried out in a real lecture environment investigating how students use and edit the transcripts. Copyright 2008 ACM. edit the transcripts. Copyright 2008 ACM.
Bibtextype inproceedings  +
Doi 10.1145/1357054.1357117  +
Has author Munteanu C. + , Baecker R. + , Penn G. +
Has extra keyword Broadcasting + , Distributed computer systems + , Human engineering + , Internet + , Navigation + , Remelting + , Speech analysis + , Telecommunication + , World Wide Web + , Automatic speech recognition + , Field study + , Navigational tools + , Text transcripts + , Webcasting + , Wiki + , Speech recognition +
Has keyword Automatic speech recognition + , Field study + , Navigational tools + , Text transcripts + , Webcasting + , Wiki +
Isbn 9781605580111  +
Language English +
Number of citations by publication 0  +
Number of references by publication 0  +
Pages 373–382  +
Published in Conference on Human Factors in Computing Systems - Proceedings +
Title Collaborative editing for improved usefulness and usability of transcript-enhanced webcasts +
Type conference paper  +
Year 2008 +
Creation dateThis property is a special property in this wiki. 7 November 2014 03:28:05  +
Categories Publications without license parameter  + , Publications without remote mirror parameter  + , Publications without archive mirror parameter  + , Publications without paywall mirror parameter  + , Conference papers  + , Publications without references parameter  + , Publications  +
Modification dateThis property is a special property in this wiki. 7 November 2014 03:28:05  +
DateThis property is a special property in this wiki. 2008  +
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Collaborative editing for improved usefulness and usability of transcript-enhanced webcasts + Title
 

 

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