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WMA: A Marking-Based Synchronized Multimedia Tutoring System for English Composition Studies By

WMA: A Marking-Based Synchronized Multimedia Tutoring System for English Composition Studies By Herng-Yow Chen and Kuo-Yu Liu Presented by Brett Lilley. Evolution of the Web. Hypertext: Document with hyperlinks to other documents Content-based Hypermedia:

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WMA: A Marking-Based Synchronized Multimedia Tutoring System for English Composition Studies By

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  1. WMA: A Marking-Based Synchronized Multimedia Tutoring System for English Composition Studies By Herng-Yow Chen and Kuo-Yu Liu Presented by Brett Lilley

  2. Evolution of the Web • Hypertext: • Document with hyperlinks to other documents • Content-based • Hypermedia: • Hypertext with graphics, audio, video • Time-based

  3. Problem Statement Creation of hypermedia presentations for educational use. Focus on correcting English Composition

  4. Creating Hypermedia • Authoring • Media Correlation • Publishing • Integration

  5. Better Educational Solution – Presentation Recording • eClass • Authoring on the Fly

  6. Web-Based Multimedia Annotation (WMA) System • Enable students to submit writing via the Web • Capture speech instructions • Capture the navigation events • Hot Keys • Mouse Operations • Ensure synchronized presentation with automatic navigation features • Enable random access throughout the hypermedia document

  7. Inter-Media Relationships

  8. System Architecture

  9. Temporal Correlation • Discrete Media • Navigation Events • Continuous Media • Speech • Random Access Between the Two

  10. Spatial Correlation

  11. Spatial Correlation: Free-Form Handwriting

  12. Spatial Correlation: Free-Form Handwriting Problem

  13. Adaptable Handwriting Presentation

  14. Spatial Correlation: Tele-Pointer • Discussion Clues • Capturing/Storing Issues

  15. Tele-Pointer Movement Interpolation • Interpolation Smoothing Algorithm • Number of Interpolated Pointers • Distance Interval • Timestamp and Positions • Time Interval - Crucial

  16. Content Correlation – Undo And Random Access

  17. Speech-Event Binding

  18. Undo Facilitation • Timestamps of events do not match speech stream timestamps • Recording is contiguous – cannot delete on-the-fly • Delete during speech-event binding

  19. Experimental Results:Clustering Speech Turns

  20. Experimental Results: Random Visual Event Access

  21. Experimental Results:Undo Functionality • Compare Against Manually-Created Speech Segments • 71% Match – Lower than Random Access

  22. Experimental Results:Tele-Pointer Interpolation • Interviewed 20 Students • >80 ms = Decreased Fluidity and Sickness • 50 ms Used in WMA

  23. Experimental Results: User Study • When: Spring 2006 • Where: Computer Science and Information Engineering at Chi Nan University • Who: 2 instructors, 27 Ph.D. students, 25 graduate students

  24. Survey Results • Favorable reactions to perceived usefulness of WMA • Integration of emerging technologies for learning is attractive to students • Favorable reaction to design and features.

  25. Pre- and Post-Test Results

  26. Conclusion • Overall system evaluation is good for practical applications • Learners get what they put in • Improvements can be made by customizing the Speech-Event Binding process

  27. Questions???

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