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研究生:張良誥
研究生(外文):Liang-Kao Chang
論文名稱:以NNTP新聞架構實作多媒體教學物件分享系統
論文名稱(外文):Sharing Web-based Multimedia Learning Objects Using NNTP News Architecture
指導教授:陳恆佑陳恆佑引用關係
指導教授(外文):Herng-Yow Chen
學位類別:碩士
校院名稱:國立暨南國際大學
系所名稱:資訊工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2005
畢業學年度:93
語文別:英文
論文頁數:35
中文關鍵詞:教學物件分享新聞架構多媒體
外文關鍵詞:Distributing learning objectsUsenetmultimedia
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本篇論文主旨在於以網路新聞的架構為基礎來幫助e-learning 教材的存取和發佈。透過這個架構,網頁式的遠距教學系統可以發佈共享的教學物件到附近的新聞伺服器,而這些共享的物件將會自動的透過轉信的機制而分散到世界各地的新聞伺服器。使用者不需要再為了找尋想要的共享物件而到許多不同的e-learning 系統中去尋找,他們可以輕鬆地利用一個統一的方式來找到想要共享物件。由於我們所要分享的物件為多媒體資料(如:老師上課的錄音、影像和影片),這些多媒體資料的檔案大小遠比一般的文字檔還要大。因此我們必需處理了許多重複資料的問題已防止網路資源的浪費。從實驗結果中也可以看出我們所提出的系統架構不會造成資料重複的問題。最後,我們也實作了一個雛型的系統並應用在國立暨南國際大學的英語課程。
This thesis presents a multimedia objects sharing framework on the basis of Internet News infrastructure (NNTP) to facilitate e-learning content access and distribution. Through this framework, a web-based e-learning system can publish sharable learning objects by posting them to a news server nearby, so that the objects can be automatically spread to world-wide news servers through NNTP forwarding mechanism. Instead of hunting for the desired materials from many different e-learning systems, users can easily access those learning objects from neighbor news servers in a unified way. Moreover, we deal with data redundancy problem which occurs especially when the shared object contains huge multimedia data (e.g., instructor’s speech, image, and video). The experimental result showed that the proposed architecture does not cause data redundancy problem. A system prototype has been implemented in our university to share English lectures with others.
LIST OF FIGURES III
LIST OF TABLES IV
CHAPTER 1 INTRODUCTION 1
1.1 BACKGROUND 1
1.2 MOTIVATION 1
1.3 RESEARCH ISSUES 2
1.4 THESIS ORGANIZATION 3
CHAPTER 2 RELATED TECHNOLOGIES 4
2.1 INTRODUCTION OF E-LEARNING SYSTEM 4
2.1.1 Learning Management System (LMS) 4
2.1.2 Learning Content Management System (LCMS) 4
2.2 SHARABLE CONTENT OBJECT REFERENCE MODEL 6
2.2.1 Content Aggregation Model (CAM) 7
2.3 REALLY SIMPLE SYNDICATION (RSS) 8
2.4 USENET 8
2.5 WEB-BASED SYNCHRONIZED MULTIMEDIA LECTURING SYSTEM 10
CHAPTER 3 SYSTEM ARCHITECTURE 12
3.1 SYSTEM FRAMEWORK 12
3.2 TO ACCESS LEARNING OBJECTS FROM A NEWS SERVER 13
3.3 USING MIME IN NEWS ARTICLE 14
3.4 COMPARISON OF MIME AND UUENCODE 16
CHAPTER 4 DATA REDUNDANCY PROBLEM 18
4.1 SENDER-STORED METHOD 18
4.2 DISCUSSION 19
4.2.1 Waste Disk Space Problem on News Server 20
4.2.2 Decrease E-learning Server Performance Problem 20
4.2.3 Network Traffic Load Problem of Server 21
4.2.4 Broken Link Problem 21
4.2.5 Copyright Problem 21
CHAPTER 5 IMPLEMENTATION 23
5.1 PROTOTYPE 23
5.2 COMPATIBILITY WITH GENERAL NNTP CLIENT 24
CHAPTER 6 EVALUATION 26
6.1 PROCESSING TIME 28
6.2 FILE SIZE OF PACKAGE 28
6.3 DISCUSSION 29
CHAPTER 7 CONCLUSION AND FUTURE WORK 31
REFERENCES 32
E-LEARNING SYSTEM 32
USENET 33
NETWORK 33
RFC 33
E-LEARNING STANDARD 34
APPENDIX A PUBLICATIONS LIST 35
E-learning system
[Bren01]Brennan, Michael., Susan Funke, and Cushing Anderson. “The Learning Content Management System - A New E-Learning Market Segment Emerges.” International Data Corporation White Paper, May 2001.
[Furh94]Furht, Borko. “Multimedia Systems: An Overview.” IEEE Multimedia, Vol. 1, No. 1, Spring 1994, pp. 47-49.
[Jian01]Jiang, Guorui., Junqiang Lan, and Xinhua Zhuang. “Distance Learning Technologies and an Interactive Multimedia Educational System.” Proceedings of the IEEE International Conference on Advanced Learning Technologies, August 2001, pp. 405-408.
[Kazi04]Kazi, Sabbir Ahmed. “A Conceptual Framework for Web-based Intelligent Learning Environments using SCORM-2004.” Proceedings of IEEE International Conference on Advanced Learning Technologies, August 2004, pp. 12-15.
[LiuK02]Liu, Kuo-Yu., Natalius Huang, Bo-Hung Wu, Wei-Ta Chu and Herng-Yow Chen. “The WSML System: Web-based Synchronization Multimedia Lecture System.” Proceedings of the tenth ACM international conference on Multimedia, 2002, pp. 662-663.
[QuCh02]Qu, Changtao., and Wolfgang Nejdl. “Towards Interoperability and Reusability of Learning Resource: a CORM-conformant Courseware for Computer Science Education.” Proceedings of IEEE International Conference on Advanced Learning Technologies, 2002.
[Yang04]Yang, Jin-Tan David., Chiung-Hui Chiu, Chun-Yen Tsai and Tsung-Hsien Wu. “Visualized Online Simple Sequencing Authoring Tool for SCORM-compliant Content Package.” Proceedings of IEEE International Conference on Advanced Learning Technologies, August 2004, pp.609-613.

Usenet
[Eric93]Erickson, Carl. “USENET as a Teaching Tool.” Proceedings of the twenty-fourth SIGCSE technical symposium on Computer science education, Vol. 25, No. 1, 1993, pp. 43-47.
[Gsch99]Gschwind, Thomas., and Manfred Hauswirth. “A Cache Architecture for Modernizing the Usenet Infrastructure.” Proceedings of the 32nd Hawaii International Conference on System Sciences, Vol. 8, January 1999.


Network
[Turn00]Turner, David A., and Keith W. Ross. “Continuous Media E-mail on the Internet: Infrastructure Inadequacies and a Sender-Side Solution.” IEEE Network, Vol. 14, No. 4, July 2000, pp. 30-37.

RFC
[RFC2980]Barber, Stan. “Common NNTP Extensions,” RFC 2980, Network Working Group, November 1996.
[RFC2045]Freed, Ned., and Nathaniel S. Borenstein. “Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Messages Bodies.” RFC 2045, Internet Engineering Task Force, Networking Working Group, November 1996.
[RFC2046]Freed, Ned., and Nathaniel S. Borenstein. “Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types.” RFC 2046, Internet Engineering Task Force, Networking Working Group, November 1996.
[RFC2047]Freed, Ned., and Nathaniel S. Borenstein. “Multipurpose Internet Mail Extensions (MIME) Part Three: Message Header Extensions for Non-ASCII Text.” RFC 2047, Internet Engineering Task Force, Networking Working Group, November 1996.
[RFC2048]Freed, Ned., and Nathaniel S. Borenstein. “Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures.” RFC 2048, Networking Working Group, November 1996.
[RFC2049]Freed, Ned., and Nathaniel S. Borenstein. “Multipurpose Internet Mail Extensions (MIME) Part Five: Conformance Criteria and Examples.” RFC 2049, Network Working Group, November 1996.
[RFC977]Kantor, Brian., and Phil Lapsley. “Network News Transfer Protocol.” RFC 977, February 1968.
[RFC1737]Masinter, Larry., and Karen Sollins. “Functional Requirements for Uniform Resource Names.” RFC 1737, Networking Working Group, December 1994.

E-learning standard
[ADL04A]Advanced Distributed Learning initiative. “Sharable Content Object Reference Model (SCORM) 2004 2nd Edition.” 22 July 2004.
[ADL04B]Advanced Distributed Learning initiative. “Sharable Content Object Reference Model (SCORM) Sequencing and Navigation (SN) Version 1.3.1.” 22 July 2004.
[ADL04C]Advanced Distributed Learning initiative. “Sharable Content Object Reference Model (SCORM) Run-Time Environment (RTE) Version 1.3.1.” 22 July 2004.
[ADL04D]Advanced Distributed Learning initiative. “Sharable Content Object Reference Model (SCORM) Content Aggregation Model (CAM) Version 1.3.1.” 22 July 2004.
[AICC05]The Aircraft Industry CBT committee. 8 January 2005 <http://www.aicc.org>.
[IMS05]The IMS Global Learning Consortium, Inc. 8 January 2005 <http://www.imsproject.org>.
[SCORM01]Advanced Distributed Learning. “Sharable Content Object Reference Model Version 1.2,” 1 October 2001.
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