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SpokenMedia Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures Brandon Muramatsu [email_address] MIT, Office of Educational Innovation and Technology Citation: Muramatsu, B., (2009). SpokenMedia:  Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures.  Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
Recap: Matterhorn & SpokenMedia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why are we doing this? ,[object Object],[object Object],[object Object],MIT OCW 8.01 : Professor Lewin puts his life on the line in  Lecture 11  by demonstrating his faith in the Conservation of Mechanical Energy.
What video? Where? iTunes U
What are the challenges? Search ,[object Object],[object Object],[object Object],Google Search for  “ angular momentum” Performed April 2009
What are the Challenges? Description ,[object Object],[object Object],[object Object],[object Object],YouTube, MIT OCW Physics 8.01 - Lecture 20 webcast.berkeley, Physics 8A, 002, Spring 2009  Retrieved August 2009
What are the challenges? Playback http://videolectures.net/mit801f99_lewin_lec20/ Retrieved August 2009
What are the challenges? Use ,[object Object],[object Object],[object Object],[object Object],[object Object],Lewin, W. (1999). Lec 20 | 8.01 Physics I: Classical Mechanics, Fall 1999. Retrieved August 1, 2009 from YouTube Website:  http://www.youtube.com/watch?v=ibePFvo22x4 “ GOD!!!51 MINUTES!! i think i'll pass.. “ –  slourdas, YouTube
Why are we interested? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What do we have today? Spoken Lecture Browser ,[object Object]
Spoken Lecture Project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],James Glass [email_address]
How Does it Work? Lecture Transcription Workflow
Transition: Research to Production A Lecture Transcription Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Lecture Transcription Service? Caveats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Toward Rich Media Notebooks Improving the User Experience ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Thanks!   oeit.mit.edu/spokenmedia Brandon Muramatsu [email_address] MIT, Office of Educational Innovation and Technology Citation: Muramatsu, B., (2009). SpokenMedia:  Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures.  Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License

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Improving Discoverability of OER Video Lectures

  • 1. SpokenMedia Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures Brandon Muramatsu [email_address] MIT, Office of Educational Innovation and Technology Citation: Muramatsu, B., (2009). SpokenMedia: Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures. Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
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  • 7. What are the challenges? Playback http://videolectures.net/mit801f99_lewin_lec20/ Retrieved August 2009
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  • 12. How Does it Work? Lecture Transcription Workflow
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  • 16. Thanks! oeit.mit.edu/spokenmedia Brandon Muramatsu [email_address] MIT, Office of Educational Innovation and Technology Citation: Muramatsu, B., (2009). SpokenMedia: Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures. Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License

Editor's Notes

  1. Citation: Muramatsu, B., (2009). SpokenMedia: Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures. Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
  2. Recap How is SpokenMedia related to Opencast Matterhorn (http://www.opencastproject.org/?
  3. Why are we doing this? In the last few years, we’ve seen an explosion of videos on the web. Self publishing by millions on YouTube. Universities recording course lectures and putting them on the web. A couple different models: UC Berkeley (and most of the world) recording courses for matriculated/enrolled students…and then everyone else MIT OpenCourseWare publishing snapshots of courses Students are relying upon web video for learning. Common statistic mentioned by folks like UC Berkeley (which has been doing course webcasts since 1999) is that usage spikes as students prepare for tests, and that they tend to focus on small segments of the video Time shifting (ucb) Study tool (ucb, students mark in their personal notes when they don’t understand something during the class to go back and review later) Learning from other instructors (ucb) Disabilities (ucb, learning, audio) Course Selection (ucb) Also, cultural organizations (museums, foundations, non-profit organizations) sharing their interviews on the web. Other similar single speaker web video, cost of technology has come down.
  4. What video? Where? Where do I go to find these resources? University’s websites Search Engines Video aggregators
  5. What are the challenges? Search Large volume of material to search through! Search results—approximately 3 Million in Google (April 2009): Wikipedia, Angular and Conservation of Angular Momentum links might be useful Quantum mechanics link is probably too advanced Angular Momentum (company) probably not useful But no videos Oh, there’s a way of just doing a video search at Google, search is segmented by media type Google Video Search results—only 400 (April 2009), that’s better: All appear to be relevant Two are lecture length (i.e. 20+ minutes or longer): Mechanical Universe, and Lecture 21 from MIT OCW Four are probably demos relating angular momentum to physical examples (tennis, ice skating) Search results are based on: Metadata Title of video/link Text description of video (typically short), or the text surrounding an embedded video
  6. What are the Challenges? Description Videos are described with titles and a short 1-2 sentence description Or Videos are described relative to their users, in the case of webcast.berkeley, they’re listed by lecture (so are MIT OCW’s), but in this example that’s all we have, it’ll make more sense to the students in the classes.
  7. What are the Challenges? Playback For playback directly from University websites, what should the UI be? Here’s an alternative view of Lewin’s 8.01, Physics Lecture 20 as displayed at VideoLectures.net Should there be additional features or support?
  8. What are the additional challenges? Interaction and Use Get the full length video, over 50 minutes There may or may not be a transcript, which may or may not be displayed as captioning for accessibility Policy Implications Technology allows for bookmarking and comments, they aren’t enabled
  9. Why do we want these tools? MIT as the customer Lots of materials, 1900+ OCW courses, some with video/audio Opportunities for positive change: improving presentation and user experience, advocate for new methods of interaction
  10. Spoken Lecture Browser Demo http:// web.sls.csail.mit.edu/lectures/ Requires Real Player Search of video library Search results show search query in context, query highlighted in yellow Results show “conceptual chunks” Player controls video and bouncing ball in the transcript Uses 2006 technology, Real Player – needs to get updated for current technology Much of the work for the Spoken Lecture browser and player completed in 2006 (though recognizer research continues) In 2006, Real could allow within movie bookmarks and playback In 2006, Real was the preferred high-quality video playback mechanism on the Web (lots has changed since then)
  11. Spoken Lecture Project Supported by iCampus Includes the browser (which was just demo’d) the processor (back end lecture transcription) and a hand workflow to do the processing Approximately 400 hours of video indexed
  12. How does it work? Audio System only needs audio (waveform), extracts from video Domain Model (base is generic domain model) System needs to know what words it can expect to find in the audio Syllabus, lecture notes, index from text book, research papers Build library of domains Separate sub-process for text for domain model Speaker model (base is generic speaker model) If multiple lectures by the same author, best to create a speaker model Separate sub-process for speaker model Process—With audio, domain and speaker models Output Time coded transcript (standard formats) Links media and transcript Applications Search/retrieval Player
  13. Towards a Lecture Transcription Service OEIT at MIT’s goal is to transition from research to production First priority to get running on our servers Prototype a transcript production service—second priority For MIT Automate a mostly hand process Considering integration with local Podcast Producer workflow engine (Apple) Integrate into media production workflow, as a plugin Partner with other content producers to test service—tied for third priority See how it meets needs of other content producers See how it plays with Opencast Matterhorn, distributed service
  14. A Lecture Transcription Service? Caveats Full disclosure, limitations we know about or think are important We’ve been asked about other languages Should be possible Jim Glass is experimenting with Chinese Would have to create a language model, not sure what’s involved with that Current plan to host a web service from MIT Contribution will be important aspect of participation
  15. Toward Rich Media Notebooks Updating the playback—third priority Flash and H.264 encoded video Implement other common video features (e.g., from YouTube and other commercial video sites) Bookmarking, annotations and comments (timestamp, text fields) Clip creation (ala XMAS cross media annotation system) Down the road Social editing to improve transcripts, wiki interfaces, trust systems Concept and semantic searching—current system breaks text up into “logical” chunks, and lets users search for a term or phrase, but doesn’t really get to concepts.
  16. Citation: Muramatsu, B., (2009). SpokenMedia: Content, Content Everywhere…What video? Where?: Improving the discoverability of OER video and audio lectures. Presented at OpenEd 2009: Vancouver, British Columbia, Canada, August 12, 2009. Unless otherwise specified, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License