The Graduate University for Advanced Studies, Japan.
National Institute of Informatics, Tokyo Japan.

A Cloud-based Automa...
Outlines :
 Introduction.
 Research Goal
 Some Existing Systems
 Objective
 Flash based e-Meeting system / WebELS Lea...
Introduction

• Rapid eLearning is an ongoing trend which enables:
• Flexibility and cost-effective in creating learning m...
Research Goals
To support flexibility and globalization of PhD education in
science and technology especially in develope...
Existing systems :
• Cisco Webex ---- Commericial platform
• Adobe connect ---- Commercial to use all the features of the
...
Why Higher Education ?

E-Learning now offer new more flexible learning methods for the
new Higher Education Environment i...
Objective :
Automated authoring system should be able and not limited to:
• Create Learning contents from meeting by real ...
Flash based e-Meeting system
-WebELS Meeting is designed for online meeting conference
system via Internet-based technolog...
WebELS Learning system

-General e-Learning platform to support flexibility and globalization
of higher education.
-WebELS...
MAP the two modules of the WebELS platform:
Proposed System

WebELS Platform

Import

Learning (Create
Learning contents
o...
System Design and Methods:
• Detect presenter video and record it.

• Save the presenter video as .flv in each virtual roo...
System Diagram :
Capture /Archive / Process / Export/ Import/ Edit * / Save

Automated Authoring System Diagram
Osamnia Mo...
System Components :
A- Recording function : based on the current flash-based meeting
system UI, the client send a control ...
Support Low-Speed Internet
Slide-based
Audio-video quality

Low quality Document image,
<100Kbps

Slides-based

Medium q...
For audio/video streaming recording, it can be adjusted
according to the presenter bandwidth environment
automatically :

...
Flow of Operation :
Video Meeting
started

Click “Start record”

While Meeting is ON, background processing :
Save Resourc...
Generate 4 important files :
- Metadata-descrption.xml : contain the content description such
us title, passowrd, abstract...
Resource data synchronization:
For each slide a resource data attached to it such as video, image,
annotation and slide co...
e-Meeting interface used for start recording

(1): audio/video stream data, (2): record button, and (3): the
slide index i...
Learning mode interface for playback

(1): Video panel for displaying the video clips recorded of the current slide,
(2): ...
Evaluation of the system :

To compare the proposed system with common requirements and
features of otherr systems, a cata...
Criterion

Sub-criteria

AAS (WebELS)

StolZenberg (2007)

C01

Verbal Narration

YES

YES

C02

Live Video

YES

YES

C03...
Conclusion:

This system targets lecturers and students in the higher education, for the
flexibility and globalization of ...
Thank you for your kind attention

osamnia@nii.ac.jp
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A Cloud-based Automated Authoring System to support e-Learning in Higher Education Under Low-Speed Internet

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A Cloud-based Automated Authoring System to support e-Learning in Higher Education Under Low-Speed Internet

  1. 1. The Graduate University for Advanced Studies, Japan. National Institute of Informatics, Tokyo Japan. A Cloud-based Automated Authoring System to support e-Learning in Higher Education Under Low-Speed Internet Osamnia Mohamed
  2. 2. Outlines :  Introduction.  Research Goal  Some Existing Systems  Objective  Flash based e-Meeting system / WebELS Learning  System design and methods  System Diagram and Operation  Resource and Metadata files  Conclusion Osamnia Mohamed
  3. 3. Introduction • Rapid eLearning is an ongoing trend which enables: • Flexibility and cost-effective in creating learning materials. • Save time and reduce the cost • WebELS system is web based E-Learning system • support higher education in engineering and science technology. • Cross-platform systems • Opensource application • Weakness and problem • High speed required • Fully automated. • Information access to the learning contents created.
  4. 4. Research Goals To support flexibility and globalization of PhD education in science and technology especially in developed countries like in Africa where there technology is very limited. Offer an easy-to-use Cloud-based authoring system for institution and universities to facilitate the creation of learning contents under low-speed internet environments. Osamnia Mohamed
  5. 5. Existing systems : • Cisco Webex ---- Commericial platform • Adobe connect ---- Commercial to use all the features of the platform • OpenMeeting --- record the screen activities what required high speed internet and lack of information privacy. • BigBlueButton ---- Open source on-line conferencing system that developed the record/playback function in the latest release BBB 0.8 using audio and slides synchronization. • T-Cube (A Multimedia Authoring System for eLearning) : Doesn’t support end users. Osamnia Mohamed
  6. 6. Why Higher Education ? E-Learning now offer new more flexible learning methods for the new Higher Education Environment in the digital age. According to some research that characterized Higher Education, it is based on : Self-learning Conference presentations Group meetings Teacher-student discussion Research presentation Osamnia Mohamed
  7. 7. Objective : Automated authoring system should be able and not limited to: • Create Learning contents from meeting by real time recording. • Record the video meeting from the on-line presentation. • Synchronize the video from web camera with the slides presentation. • Create Learning contents for off-line reviewing automatically. • Export the learning contents to the Learning Module or other Learning platforms (SCORM) Osamnia Mohamed
  8. 8. Flash based e-Meeting system -WebELS Meeting is designed for online meeting conference system via Internet-based technologies. -support the higher education for online learning activities, include several functionality such as content-authoring, online presentation, video conference and so on. -It is Conference system don`t required high-speed Internet and a specific operating system. - To generate learning contents automatically based on e-Meeting presentations, the automated authoring system was proposed. Osamnia Mohamed
  9. 9. WebELS Learning system -General e-Learning platform to support flexibility and globalization of higher education. -WebELS learning offers various tools for teachers that help to deliver and archive learning materials on the web. Mains features : -Web-based usage (any browsers and no need for special programs). -Anytime , Anywhere, Anybody -Support slides synchronization with video, audio and cursor movement. -Simple and friendly User Interface to break-down the need for IT skills. -Cross-platform solution. Osamnia Mohamed
  10. 10. MAP the two modules of the WebELS platform: Proposed System WebELS Platform Import Learning (Create Learning contents off-line) Learning Content Meeting (Real-Time Presentation) Automated Authoring -Record Presenter Video -Synchronize the video with the slides presentation and annotation actions, etc Export Osamnia Mohamed
  11. 11. System Design and Methods: • Detect presenter video and record it. • Save the presenter video as .flv in each virtual room. • While recording, the system will divide the streaming data into a small parts that synchronize to the current presentation slides by slides control (Next, Previous). • Record the cursor movement (x, y) as well as the annotation data including all setting data (Zoom, Color, Cursor, etc.) • Automatic synchronization (Background process). Osamnia Mohamed
  12. 12. System Diagram : Capture /Archive / Process / Export/ Import/ Edit * / Save Automated Authoring System Diagram Osamnia Mohamed
  13. 13. System Components : A- Recording function : based on the current flash-based meeting system UI, the client send a control signals such as start, pause, stop recording to the server for background process. B- Playback function: a viewer user interface that can interact with the server for streaming the data resources such as : video, presentation slides, annotation, etc. Osamnia Mohamed
  14. 14. Support Low-Speed Internet Slide-based Audio-video quality Low quality Document image, <100Kbps Slides-based Medium quality Document image, 100Kbps<X<1Mbps High quality Vector Graphics, >=1Mbps Osamnia Mohamed
  15. 15. For audio/video streaming recording, it can be adjusted according to the presenter bandwidth environment automatically : Osamnia Mohamed
  16. 16. Flow of Operation : Video Meeting started Click “Start record” While Meeting is ON, background processing : Save Resources data files: 1- Presenter video 2-Slides presentation (img, video) Create Control Metadata files : 1-content_description.xml per recording 2- meta-description.xml per recording 3-annotation_metadata.xml per slide 4-cursor_xy_data.dat per event change Click “Stop record” Osamnia Mohamed
  17. 17. Generate 4 important files : - Metadata-descrption.xml : contain the content description such us title, passowrd, abstract, etc.. - content_description.xm : hold slides data information such as: slide number, title, type, etc. - annotation_data.xml : contains information of the whiteboard such as cursor, pen size, text annotation, etc. - Cursor_xy_data.dat : Contains the x and y position of the mouse during the on-line presentation. Osamnia Mohamed
  18. 18. Resource data synchronization: For each slide a resource data attached to it such as video, image, annotation and slide control. Osamnia Mohamed
  19. 19. e-Meeting interface used for start recording (1): audio/video stream data, (2): record button, and (3): the slide index information. Osamnia Mohamed
  20. 20. Learning mode interface for playback (1): Video panel for displaying the video clips recorded of the current slide, (2): Slide panel for displaying the current slide, (3): Content Information panel for the slides details (number, title, and description), (4): Control panel for managing the online learning content. Osamnia Mohamed
  21. 21. Evaluation of the system : To compare the proposed system with common requirements and features of otherr systems, a catalogue of important criteria for automated systems can be used. These criteria does not claim to be complete ad suitable for all kinds of evaluation, but reveals the most important aspects (Ziewer 2006) Table 1 present how the proposed system respond to these criteria in comparing with another common system (Journal of E-Learning 2007 - Stolzenberg) Osamnia Mohamed
  22. 22. Criterion Sub-criteria AAS (WebELS) StolZenberg (2007) C01 Verbal Narration YES YES C02 Live Video YES YES C03 Presentation Content Format of presentation Documents Doc, Pdf, Video, PPT, etc Common formats C04 Annotations a) Type of Annotations Text, Freehand, rect, etc Text, Freehand, rect, etc b) Dynamic capture and reply of annotations YES (Planned) YES c) Student Note-taking YES NO YES indirect a) Video Editing YES YES b) Content Editing YES NO C)Creation of Distributed Media YES YES a) Structured Electronic Lectures YES YES b) Random Access YES YES c)Visible Scrolling YES YES a) Searchable Content NO Planned b) Range of search-ability NO Planned a) Lossless Reproduction YES NO b) Scalability YES NO c) Stream-ability YES YES d) Format SWF (Flash format) QuickTime e) File size and bandwidth Several options Several options C05 Metadata C06 Post-processing C07 C08 C09 Navigation Information Retrieval Format of produced Electronic Lectures C10 Platform independency YES (Cross-platform) NO (MAC OS only) C11 Synchronous Electronic Lectures YES planned
  23. 23. Conclusion: This system targets lecturers and students in the higher education, for the flexibility and globalization of post-graduate studies. The system generates learning contents automatically based on a real-time presentation, synchronizing the lecturer video stream and the slides presentation by means of video clip timing. It composes of two main functions, recording function and playback function. When the recording function is trigged during the on-line presentation, at the back-end the automated system start processing to record the presentation and create the learning content. The playback function is used to review the content stored at the server side by learners, who could not attend the real-time presentation or for further understanding of the lecture. Both recording and playback function were designed for non-IT users by simple to use interface and to be stable under low-speed internet. Furthermore, the automated authoring system was implemented on the cloud-computing environment to ensure reliability and scalability of the system. Osamnia Mohamed
  24. 24. Thank you for your kind attention osamnia@nii.ac.jp

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