introduction of distance education using the internet
TRANSCRIPT
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Aug 29th 2002
Introduction ofDistance Education Using the Internet
JICA / CRLKEIO UniversityWIDE ProjectKazunori [email protected]
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project
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Today’s Lecture
• Introduction of the WIDE Project.• Introduction of distance education project.
– SOI Project
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Aug 29th 2002
WIDE ProjectIntroduction of the WIDE Project
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WIDE Project
• Research consortium on the Internet in Japan Since 1988.• 106 Organizations (39 universities and 66 companies)
– University, Industry, and Government– 687 members, about 200 active
• Share test beds:– High speed/Wireless/IPv6/Mobile/Multicast
• Non-profit, non-legal entity• 16 working groups
– Diffserv, icars, internet cars, irc, last– Lifeline, MAWI (Measurement analysis)– Multicast, moca (Member oriented CA)– Reliable MC, SOI, two, IPv6, wish, xcast, dns
• http://www.wide.ad.jp/
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WIDE Project approaches• Challenges
– TCP protocols– Mobile Internet– Internet Education
• Test beds– IPv6– Multicast– Mobile
• Deployment– Practical use of super advanced technologies– Practical use of existing Internet environment
• Missionary work– IPv6
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Aug 29th 2002
SOISchool of InternetToward next generation distance education
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project, WIDE Project
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SOI Sauce!!!!
• Japanese traditional sauce founded 2000 years ago– Salt fermentation basis of
beans– 5 variations of sauce– 3 classes
• First sold: Yuasa, Kishuu Japan• First found on Books:
Muromachi period(AD1392-1573)
• 1027000KL delivered on 2001, (8.1L year/person)
• 118000KL exported
References:http://www.soysauce.or.jp
SOY
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Goal
• Provide a higher educational opportunity to everyone on the Internet
= the digital communication infrastructure
– Free mapping of educational resources on the digital communication infrastructure. Free from:
• Organization• Country• Geography• Physical restrictions• Time restrictions
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University
• Originally…– universitas studentium
• Group of people wishing to learn
– universitas magstrorum• Group of people wishing to teach
– Based on the individualism of learning• University are constructed under expediency of its nationalism,
country.– Top of the education pyramid.– Restriction.
• SOI Challenge– Without any restrictions provided by global digital communication
infrastructure, we constructed ideal “University”
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Bases of SOI
• School on the Internet - SoI– Individuals whom wishes to learn is provided with highest level of
research and education platform using the Internet infrastructure without any restrictions.
• School of Internet - SOI– Substantiation platform of SoI
• construction of “Faculty of the Internet”– WIDE University, School of Internet (SOI)
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Approach
• Digitize every activity at the University– Lectures, coursework, – Administration– Communication
• Find a problem and solve it• Find a new opportunity and try it• Evaluation• Experiments using “real” resources in the “real”
environment
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Traditional Platform
Univ. A Univ. B Univ. C Univ. D
StudentA
StudentB
StudentC
StudentD
EducationalResources
EducationalResources
EducationalResources
EducationalResources
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SOI Approach
Univ. A
EducationalResource
Univ. B
EducationalResource
Univ. C
EducationalResource
Univ. D
EducationalResource
Student A Student B Student C Student D
Student E Student F
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Education Activities
• Education activities = Group of communications
Teachers
Students
Managed
InfrastructureSociety
Students
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Educational Objects
• All the information provided, shared, exchanged by the members.
Teachers
Students
Managed
InfrastructureSociety
Students
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SOI Mission
• Share and preserve the valuable educational resources.
• Technology Deployment– In between “researchers” and “users”.– demonstrate the social value of the technology.
• Internet Deployment– Internet, as a vehicle of “Global Educational Environment”.– Implement it wherever needed.
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Activities
• SOI Class• SOI Collaboration Class• SOI Global Studio• SOI ASIA
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SOI Class
• Systems– SOI for individual learners– SOI remote participation class – on-demand class– multimedia learning resource– Assignment System– Course Survey System– Transcript System– Copyright System– SOI CA and My SOI– Faculty Support
• Technology– Web and database– Streaming– Multimedia Synchronization– Digital Signature and
Certificate authority
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School of Internethttp://www.soi.wide.ad.jp/
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Top page of classhttp://www.soi.wide.ad.jp/class/20020010/
Archives of sessionAnd
Pre-sessions
What’s new?
Submit assignments
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SOI on-demand class
• Synchronized multimedia
Synchronized material
Click to view the WEB for detail
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SOI multimedia learning resource
Keyword search
Find a page
Start where you want
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SOI remote participation class
STEP 1 Login
Course list
Course material
Communication
Audio-Video
STEP 2 Participation
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Assignment System
一覧一覧一覧一覧ととととコメントコメントコメントコメント
Submission
View and revieweach other
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Course evaluation
Anonymous comments
Set questionnaire Public review
Response fromteacher
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Learning history of students
Monitoring
Student status
Comments Log
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Course information certificate
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Faculty support
Grades and Feedback
Reading List
Student Communication
Assignments
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MySOI
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Copyright Management Office
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SOI Classsnapshot as of today
• Who– Over 8500 Registered participants– From high school students to retired business man– adult percentage : 60%
• Where– SOI SITE: http://www.soi.wide.ad.jp/– Since 1997
• What– 1112 hours of IT related lectures.– 43 university courses.– 83 special lectures and tutorials.
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SOI Global Class
• Global class– Joint class
• Students in Multiple sites• Teachers in Multiple sites
– Shared class• Students in Multiple sites
– Remote lecture• Teachers in remote site
• Technology– IPv6– Multicast– DVTS (Digital Video over IP)– High speed Internet infrastructure (JGN, Internet 2 etc)– Remote presentation tools
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Demonstration of DVTS
• DVTS = Digital Video Transport System– Transmits Digital Video (DV) through the network– Average network bandwidth = 30Mbps– Supported Operating Systems
• FreeBSD• NetBSD• Linux• Windows ME, 2000, XP
– IPv4 and IPv6– Multicast support– Video frame rate control– Video On Demand Services
• FreeBSD PC Server• 1.5TB Disk array
DVTS for Windows
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DV Transport System
IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
IEEE1394IEEE1394IEEE1394IEEE1394
Internet
DV→Internet PC Internet →DV PC
Consumer DV
DV Encapsulation
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DV Transport System
Internet
DV→Internet PC Internet →DV PC
IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
Consumer DV
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DV Transport System
Internet
DV→Internet PC Internet →DV PC
IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
Consumer DV
DV de capsulation
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DV
DV
DV
DV
DV
IP
UDP
UDP
1394Header
ApplicationHeader
DV/IP EncapsulationSender
Receiver
Network
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Packet Format
IP(20)
UDP(8)
Header(8)
IEEE1394ISO
header(4)
DV data (488)
Unused(2)
Sequence(2)
Regulation Parameter(4)
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Receiving and showing it to the monitor: Frame Buffering
Ring Buffer
output
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Bandwidth Required for DV
0.005.0010.0015.0020.0025.0030.0035.00
full1/
21/
31/
41/
51/
61/
71/
81/
91/10
Video
AudAudio
(Mbps)
Frame rate reduction rate
<10Mbps Video<5Mbps
3.56Mbps(1fps)
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System Requirements forWindows 2000, XP version
• Pentium III 400MHz and up– Requires MMX
• OHCI Compliant IEEE1394 interface• 100Base-T Ethernet• IPv6 package ( for IPv6 support in XP )
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System Requirementsfor FreeBSD, NetBSD version
• Standard Pentium,Pentium II based PC• requires >200MHz Pentium
• PCI based IEEE1394 interface card• OHCI Compatibility
• 100BaseT PCI Ethernet NIC• Consumer DV Camcorder with DV Output• Cables
Next: Software Design
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Video Archiving Server(Digital Video)
• RAID network server– 1.5TByte RAID SCSI drives
(RAID 5)– Dual processor PC (Dual
Athlon 2200+)– Gigabit Ethernet interface
• Modified Operating system– Based on FreeBSD– Interrupt aggregation– Resource management
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Burst Traffic of CBR
• Periodic burst traffic caused by CBR UBR– Caused by frame reduction method
• Traffic measurement of ¼ frame reduction traffic
0
50
100
150
200
250
300
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
(Calculated)
DV Frame
Pack
ets
Audio Packets
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• Packet jitter in 10Mbps networks(in 1/5 mode)
Delay caused byvideo frame
usec
Periodicdelay
Burst Packet in 10Mbps
Packet sequence number
IEEE1394 bus deadline
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Shaping the Burst Packets
• Smoothing the burst UBR packet flow– Shaping, flow control
• Using CBQ as a shaper
• Separation of Audio, Video packet• Priority control of Audio Packet
– Adapting audio jitter• Collaborative frame rate control
– Using RTCP/RTP
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10Mbps with CBQ
• Audio packet priority control with CBQpacket shaping
usec
sequence
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Aug 29th 2002
Practical SOI withDVTS
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project, WIDE Project
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Joint Class over the pacific ocean
http://www.soi.wide.ad.jp/class/99006/http://www.soi.wide.ad.jp/class/99007/
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Remote Lecture
3 professors @ San Diego Super Computer Center
Students @ 3 universities in JapanNAIST
U-Tokyo
SFC
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SOI Global Classsnapshot as of today
• Who and What– 9 shared/joint classes in 5 semesters since 1999 Fall – Involving 9 universities– A lot of one-time remote lectures from many places.
• Remote site in Japan• Remote site in the US (San Diego, Los Angels, Florida, etc)
– 2 courses all done by remote lectures from Maryland to Japan.
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Internet2IPv6
Internet2IPv6
IPv6Japan
Backbone
IPv6Japan
Backbone
Maryland College Park, MD
Palo Alto, CA
KEIO Univ.
East Coast SOI StudioWest Coast SOI Studio
NAISTKUSA
U-Tokyo
Shibuya NTTC Studio
AI3Satellite
Backbone
AI3Satellite
Backbone
Partner Universities in
Asian CountriesJAIST
SOI Global StudioSOI remote lecture sites
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SOI Global Studio Project
Fujitsu LabCollege Park,Maryland
NTT-MCLPalo AltoCalifornia
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SOI Global Studio Sessions
Studio@Palo Alto, CA
Studio@Maryland
KEIO University, SFC
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From Maryland US, to Japan
Digital Video over Digital Video over IIPv6 Pv6 Multicast NetworkNetwork
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Aug 29th 2002
SOI-Asia
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SOI AsiaSOI Global Class in ASIA
• Mission– Human resource development in Asia with “SOI Global Class”
using SOI educational resource.
• Challenge– Deployment of Internet, Internet culture and learning
environment with Internet
• Technology– Satellite Internet over C-band (AI3)– RO satellite and UDLR technology (Unidirectional Link Routing)– Multicast technology– Multicast streaming– IPv6
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Shared Class JAD Twinning Program
1st1st
preparationpreparation
3rd3rd
2nd2nd
4th4th
Education in Malaysia
Universities in Japan(17 private, 7 public)
Transfer
Degree
Distance Education
JAD:Japanese Associate Degree Program
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SOI/JAD On-demand
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SOI/JAD Real-time sessions
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The InternetThe Internet
Learn through your local mirror server
Giving LecturesFrom Japanese Universities
Taking Lectures atYour Institutions
LANLAN
SOI Mirror Server
SOI Asia
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SOI Asia Partners
• Malaysia – JAD program / YPM College• Thailand
– Chulalongkorn University– Asian Institute of Technology (AIT)
• Laos - National University of Laos• Indonesia
– Universitas Brawijaya– Hasanuddin University– Universitas Sam Ratulangi– Institute of Technology, Bandon
• Myanmar – University of Computer Studies, Yangon• Vietnam - IOIT
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AI3 Test-bed & UDL Sites
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Brawijaya University,Indonesia
Hasanuddin University,Indonesia
Sam Ratulangi University,Indonesia
Laos National University,Laos
University of ComputerStudies, Yangon, Myanmar
Asian Youth Fellowship,Malaysia
Asian Institute of Technology, Thailand
Chulalonkorn University,Thailand
SO
I-AS
IA P
artners Satellite A
ntennaS
OI-A
SIA
Partners S
atellite Antenna
SO
I-AS
IA P
artners Satellite A
ntennaS
OI-A
SIA
Partners S
atellite Antenna
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AI3 satellite earth stations
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IF Coaxial Cable
UDLR Receiver
LAN
JCSAT-3 C-Band C-7 transponder
L-Band (950 - 1450MHz)
Terrestrial Internet
AC power supply
SOI Server
Provided by SOI Asia Project
Prepared by Institution
SOI Asia Site Configuration
SOI Clients
Receive Router
CampusLAN
CampusLAN
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NUOL - Laos
IT Special Lecture – Group1http://www.soi.wide.ad.jp/soi-asia/g1/
• Feb, 2002• 105 Participants• Contents:
– 1st class (02/01/02) 11:00-11:30• SOI Asia Keynote (Prof. J. Murai)
– 2nd class (02/02/02) 11:30-14:00• MPLS: A Packet forwarding
Technology for the next generation Internet
– 3rd class (02/08/02) 11:00-14:00• Essential Technologies and
concepts for home networks– 4th class (02/15/02) 11:00-14:00
• Topics in Tools and Environments for a Distributed Cooperative Work
– 5th class (02/22/02) 11:00-14:00• Topics in Object – Oriented
Methodologies
UCSY, Myanmar
Chulalongkorn Univ.Thailand)
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IT Special Lecture – Group2http://www.soi.wide.ad.jp/soi-asia/group2/
• March, 2002• 120 participants• Contents:
– 1st class (03/06/02) 11:00-11:30• SOI Asia Keynote (Prof. J. Murai)
– 2nd class(03/06/02) 11:30-14:30• MPLS: A Packet forwarding Technology for
the next generation Internet (Prof. Shinoda)
– 3rd class (03/13/02) 11:00-14:00• Essential Technologies and concepts for
home networks (Prof. Tan)– 4th class (03/20/02) 11:00-14:00
• Topics in Tools and Environments for a Distributed Cooperative Work
– 5th class (03/27/02) 11:00-14:00• Topics in Object – Oriented Methodologies
UNHASIndonesia
UNSRATIndonesia
UNIBRAWIndonesia
Asian Institute of TechnologyThailand
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SOI approach for Accessibility
英語字幕英語字幕英語字幕英語字幕
Sub TitleSub TitleSub TitleSub Title
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Accessibility SOI
• Digital Information > Analog Information
• SOI contents for the hearing aids– Close captioned contents
• SOI contents for the visually challenged – Navigation with audio– Audio and text information for higher accessibility of
contents
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SOI Asia Contents
• 2001 – University Courses
• “Introduction to the Internet “ Keiko University (2001.4-7)• “Network Architecture” Keio University (2001.10-2002.1)• “Bio-science” Tokyo Denki University (2001.9-2002.1)
– IT Special Lectures • from JAIST and KEIO (2002.2-3)
– IT Basics • Translated version of Tutorials from
IW99, IW2000, IW2001 (2002.2-3)• 2002
– SFC Social Course, June-July– SOI Asia Operators Workshop in
Summer @ SFC– Fishery, Sept from
Tokyo University of Fishery– IT Course, Oct-Dec from
Keio Univ/U-Tokyo etc
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Future Plans
• Deployment of new learning style– More SOI archives– Encourage university resource sharing
• SOI Asia Project– Courses in Feb/March– Multicast file distribution– Distribute tools to get more contents development
• SOI Global Studio Project– Site Standard Design– More sites– Light-weight mobile sites– Develop and distribute the course Management tools– Shared facility Management
• Accessibility SOI
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How to join SOI?
• Joining SOI activities– I will write a proposal to our project for a joint of Southern
Pacific and SOI-Asia– Materials for sharing– Internet Freedom