1. Steven Goldfarb CHEP Mumbai, India - 15 Feb 2006 The Web Lecture Archive Project: Archiving Lectures for HEP

2. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 2 Partnership  University of Michigan UM ATLAS Collaboratory Project Department of Physics Media Union  CERN Technical & Acedemic Training Summer Student Program IT  American Physical Society Primary Goals  implement an electronic archival system for slide-based presentations on the Internet;  assess the ability of the system to improve upon and complement existing archival methods;  determine the resources required to install and maintain the system as a standard archival service. The Web Lecture Archive Project

3. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 3 Pilot Project (1999)  Bring Sync-O-Matic 3000 to CERN CERN Summer Student Lectures LHC Meetings, Seminars, Tutorials  Great Success with Students Especially for early morning lectures…  Sparked Interest at CERN, LHC Academic, Technical Training ATLAS Management Early Discovery Years (2000-2001)  CERN Training First Attempts at Production Mode  Need for Tools, Methods, Automation First ideas of Lecture Object, Standardization  CERN Auditorium First Steps Toward Electronic Archival, Equipment for Video Streaming  Ann Arbor Emphasis on Addressing LHC Activities  Archival of Plenary Sessions, Tutorials Project History

4. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 4 Recent Activity (2002-2006)  Most R&D Moved to Ann Arbor Lack of CERN Support for General R&D  Standardization Definition of Lecture Object Standard  Description of Media, Slides, Metadata Porting of Repository to Lecture Object Creation of Transformations to Build, View Lecture Objects  Automation Motivated by Larger Scale Production of Lectures at University Web Lecture Capture Device Project  Automation of lecture construction from audio, video, slides  Automation of publication (immediate web upload following talk)  Automation of video capture  Robotic Camera Project History (cont.)

5. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 5 Web Lecture Components What is a Web Lecture? metadata slides, visual material (screen captures, e.g.) timing information audio of speaker, audience video of speaker, audience Software to prepare the material for presentation in a web browser, with standard plug-ins.

6. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 6 Most Common Web Lectures What is a Web Lecture? Seminar or Plenary Session  Audio, Video  Slides  Immediate Publication  Short or Long Lifetime Tutorial  Audio, Video  Slides, Screen Captures, White Board Capture  Additional FAQ, Problems, Recipes, etc.  Labor-Intensive Production (Delay before Publication)  Typically Long Lifetime

7. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 7 WLAP Archives  University of Michigan Portal http://www.wlap.org Current, maintained, more than 700 web lectures published  CERN Portal http://webcast.cern.ch/Projects/WebLectureArchive/ Original WLAP portal at CERN, no longer maintained actively (being re-thought) CERN Training  CDS Agenda Server http://agenda.cern.ch/displayLevel.php?fid=72http://agenda.cern.ch/displayLevel.php?fid=72 (academic training) http://agenda.cern.ch/displayLevel.php?fid=97http://agenda.cern.ch/displayLevel.php?fid=97 (summer student lecture program) CDS Agenda server (video only, with mixing of slides / speaker) The Rest of the World  Google: "web lecture" OR "electronic lecture” 57,000 entries (only a few percent actually point to web lectures)  Some premium examples http://www.princeton.edu/WebMedia/lectures/ (video only - but awesome content) http://www.princeton.edu/WebMedia/lectures/ http://itunes.stanford.edu/ (Stanford on iTunes) http://itunes.stanford.edu/ http://www.mediasite.com/ (MediaSite - excellent!) http://www.mediasite.com/ What’s Out There?

8. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 8 Lecture Object  Standardize Storage of Web Lecture Ingredients, Recipe Archive media in standard formats (mpeg-4, jpeg, etc.) XML extension to SMIL (Synchronized Multimedia Integration Language)  Describes slide timing, media location, other information  SMIL = W3C Standard Add metadata with RDF (Resource Description Framework)  RDF = W3C Standard  Standard Procedure for WLAP Current Research Focus mpeg-4 jpeg XML Description meta data Lecture Object Transformations

9. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 9 Web Lecture Capture Device (Automating the Process for Large-Scale Recording)  Obstacles to Fast Automatic Lecture Recording & Publishing Video Capture & Compression Slide Capture & Compression Timing & Metadata Capture & Inclusion  Manpower Costs Video Recording Processing of Data to Create Lecture Object  WLCD Solutions Video captured by IR sensing robotic camera  IR light-emitting necklace for speaker  Two cameras: one follows necklace movements, tells other where to look  Video signal encoded and compressed in real time to mpeg-4 Slide capture directly from presentation computer  VGA signal taken by splitting signal to projector  Synchronization based on time-dependent changes to signal  Non-changing video compressed to fixed images Lecture Object generated from input  Metadata extracted automatically from slides with OCR (audio eventually)  Published directly at end of lecture Current Research Focus (cont.)

10. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 10

11. Mumbai, India - 15 Feb 2006S. Goldfarb - University of Michigan WLAP - Slide 11 WLAP Focus for R&D  Issues of greatest relevance to HEP, Education Automation  WLCD, Robotic Camera Standardization  Move to Standard Lecture Object Non-Proprietary, Long Lifetime, Adaptable to New Technology  Discussions Begun with CERN New SMAC Project Based on SMIL Integration  Live Web Lectures a Must H.239 Now Standard on Most H.323 Video Conferencing Units  Dual Video Streams Capture and Build Lecture Objects on the Fly Adaptability, Proliferation  Lectures Everywhere Maintained, Mirrored Web Repositories Viewing with PDA’s, iPods, Phones, … Future Directions Thank you!