星期六, 12月 29, 2007
星期六, 12月 22, 2007
Homework 12-22-2007
1. Compare the business models of Metropolitan Wi-Fi Networks in the world.
2. Read the abstracts of the full papers, and then make your comments.
Robin Kay, Developing a comprehensive metric for assessing discussion board
effectiveness, British Journal of Educational Technology, Vol 37 No5 2006. pp. 761-783
Note: You may need to stay in the IP range of CYCU to download the article.
2. Read the abstracts of the full papers, and then make your comments.
Robin Kay, Developing a comprehensive metric for assessing discussion board
effectiveness, British Journal of Educational Technology, Vol 37 No5 2006. pp. 761-783
Note: You may need to stay in the IP range of CYCU to download the article.
Talk Outline 12-29-2007
Student Oral * 3
- Yao-Jen Chang, Hsin-Yu Hsu, Frank Tsen-Yung Wang, Action Science Approach to Context Aware Personalized Housing Services using Web 2.0 Mapping Tools- A Nonprofit Case Implementation, NCS 2007, Dec. 20-21, Taiwan.
- Yao-Jen Chang, Yao-Sheng Chang, Shu-Yu Hsu, Chiu-Hui Chen, Social Network Analysis to Blog-based Online Community, to be presented in International Conference on Convergence Information Technology 2007, Gyeongju, Korea. November 21~23, 2007. (EI)
星期六, 12月 15, 2007
Homework 12-15-2007
繳交作業方式
Dec-22-2007 11:59 a.m. Due
1. Read the abstracts of the full papers, and then make your comments.
Feng Fua, Lianghuan Liua, and Long Wang. Empirical analysis of online social networks in the age of Web 2.0, Physica A: Statistical Mechanics and its Applications Volume 387, Issues 2-3, 15 January 2008, Pages 675-684
Note: You may need to stay in the IP range of CYCU to download the article.
Dec-22-2007 11:59 a.m. Due
1. Read the abstracts of the full papers, and then make your comments.
Feng Fua, Lianghuan Liua, and Long Wang. Empirical analysis of online social networks in the age of Web 2.0, Physica A: Statistical Mechanics and its Applications Volume 387, Issues 2-3, 15 January 2008, Pages 675-684
Note: You may need to stay in the IP range of CYCU to download the article.
Talk Outline 12-22-2007
1. Student Oral
- G. Trentin. Networked Collaborative Learning in University Teaching, Education Technology, Oct 2006. pp20-25.
星期六, 12月 08, 2007
Talk Outline 12-15-2007
1. Student Oral
Subject Area: Web 2.0
Yao-Jen Chang, Tseng-Yun Wang, Shi-Kai Tsai, Yu-Chia Chuang, "Action Science Approach to Experimenting Nonprofit Web 2.0 Services for Employment of Individuals with Mental Impairments" 2007 International Workshop on Social Media Analysis in conjunction with ACM/IEEE Web Intelligence 2007. (EI)
Yao-Jen Chang and Chiu-Hui Chen, "Methodology and Evaluation of Teaching Computer Programming Laboratory with Social Media," ED-Media 2007, Vancouver, Canada, June 25-29, 2007.
2. Lecture
Web 2.0
Homework 12-8-2007
繳交作業方式
Dec-15-2007 11:59 a.m. Due
1. Read the abstracts of the full papers, and then make your comments.
Yao-Jen Chang, Tseng-Yun Wang, Shi-Kai Tsai, Yu-Chia Chuang, "Action Science Approach to Experimenting Nonprofit Web 2.0 Services for Employment of Individuals with Mental Impairments" 2007 International Workshop on Social Media Analysis in conjunction with ACM/IEEE Web Intelligence 2007. (EI)
Yao-Jen Chang and Chiu-Hui Chen, "Methodology and Evaluation of Teaching Computer Programming Laboratory with Social Media," ED-Media 2007, Vancouver, Canada, June 25-29, 2007.
Dec-15-2007 11:59 a.m. Due
1. Read the abstracts of the full papers, and then make your comments.
Yao-Jen Chang, Tseng-Yun Wang, Shi-Kai Tsai, Yu-Chia Chuang, "Action Science Approach to Experimenting Nonprofit Web 2.0 Services for Employment of Individuals with Mental Impairments" 2007 International Workshop on Social Media Analysis in conjunction with ACM/IEEE Web Intelligence 2007. (EI)
Yao-Jen Chang and Chiu-Hui Chen, "Methodology and Evaluation of Teaching Computer Programming Laboratory with Social Media," ED-Media 2007, Vancouver, Canada, June 25-29, 2007.
星期四, 12月 06, 2007
星期二, 12月 04, 2007
居禮夫人的名言
Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.
- Marie Curie
- Marie Curie
星期六, 12月 01, 2007
Homework 12-1-2007
中原大學圖書館線上資料庫，進入拓墣產研資料庫，
1. 查詢近期WiMax 產業分析報告ㄧ篇，作成100字摘要。
2. 簡述 Qualcomm收購Airgo與RFMD藍牙團隊的策略佈局為哪三項?
Bonus Problem:
3. 依據 WiMAX晶片業者發展現況此研究報告，目前全球主要WiMAX 晶片業者有哪幾家?
ps: 其他產業分析報告 Forrester Research, Gartner Report
ps: 請摘要簡答，尊重智慧財產，切勿抄襲。
1. 查詢近期WiMax 產業分析報告ㄧ篇，作成100字摘要。
2. 簡述 Qualcomm收購Airgo與RFMD藍牙團隊的策略佈局為哪三項?
Bonus Problem:
3. 依據 WiMAX晶片業者發展現況此研究報告，目前全球主要WiMAX 晶片業者有哪幾家?
ps: 其他產業分析報告 Forrester Research, Gartner Report
ps: 請摘要簡答，尊重智慧財產，切勿抄襲。
12-8-2007 Talk Outline
telecom, 2G, 2.5G, 3G (IMS, IP Multimedia Subsystem), 3.5G/HSDPA
Computer Communications (IT), IP-based, WiFi (Data Comm.), WiMAX
Telecom enters IT sectors
WiMAX vs. HSDPA
Computer Communications (IT), IP-based, WiFi (Data Comm.), WiMAX
Telecom enters IT sectors
- Nokia N Series, computer
- E Series, for enterprises, email & office s/w
- Voice xxxx
WiMAX vs. HSDPA
- similar:Handover, Multimedia (<>
- difference: physical, initial cost, TCO (Total Cost Ownership)
星期五, 11月 30, 2007
星期日, 11月 18, 2007
11-17-2007 Homework
繳交作業方式
Dec-1-2007 11:59 a.m. Due
1. Read the abstracts and skim the full papers, and then comment on the three papers.
特別提醒: 必須使用學校IP網域才可以下載，中原大學已經購買ACM所有出版品的電子下載權利。在學校上網下載就沒有問題。
Notice:
11/24/2007 - the midterm week. No class meeting. (停課ㄧ次)
Dec-1-2007 11:59 a.m. Due
1. Read the abstracts and skim the full papers, and then comment on the three papers.
特別提醒: 必須使用學校IP網域才可以下載，中原大學已經購買ACM所有出版品的電子下載權利。在學校上網下載就沒有問題。
Notice:
11/24/2007 - the midterm week. No class meeting. (停課ㄧ次)
12-1-2007 Talk Outline
OFDM (Text pp 2-55 ~2-87, Handout pp. 86-91)
1. Student Oral
P1: g9577601
P2: Claire
P3: Chen
ps: slides sample.
1. Student Oral
P1: g9577601
P2: Claire
P3: Chen
ps: slides sample.
星期一, 11月 12, 2007
CSMA
CSMA p-persisitent, 1-persistent
- offerer load vs. throughput behavior & mechanism (Textbook pp. 2-48~2-51)
- CSMA/CD improves performance
- drawbacks of CSMA/CD in long distance and high speed communications
- interference and noise
- Shannon Theory
- the need of modulation for practical communication enigineering
- nonlinear characteristics of modulation and reduction of nonlinear effects
- Optical communication
- Wavelength Division Multiplexing (WDM)
星期日, 11月 11, 2007
11-10-2007 Homework
In the talk, we introduced the evolution of contention based protocols:
1. ALOHA
2. CSMA (Carrier Sense Multiple Access)
3. CSMA/CD (collision detection) -> IEEE 802.3 (Ethernet, 100M, 1Gbps)
Problems:
1. Why does Pure Aloha perform worse than Slotted Aloha?
2. According to Textbook pp. 2-48~2-51, why does 1-persistent CSMA have lower throughput than non-persistent CSMA when generated traffic rate is higher than 1 (G>1)? Why does 1-persistent CSMA have shorter latency than non-persistent CSMA?
1. ALOHA
2. CSMA (Carrier Sense Multiple Access)
3. CSMA/CD (collision detection) -> IEEE 802.3 (Ethernet, 100M, 1Gbps)
Problems:
1. Why does Pure Aloha perform worse than Slotted Aloha?
2. According to Textbook pp. 2-48~2-51, why does 1-persistent CSMA have lower throughput than non-persistent CSMA when generated traffic rate is higher than 1 (G>1)? Why does 1-persistent CSMA have shorter latency than non-persistent CSMA?
星期五, 11月 09, 2007
先進網際服務系統
The language of this course is ENGLISH.
Advanced Internet Services and Systems will be one of my Spring 2008 courses. See a previous syllabus for Fall 2006.
I would like to elaborate more on Web 2.0, emerging dynamics and interactions of online communities, web services, and mobile Internet. When the updated syllabus is ready, I will post it.
Advanced Internet Services and Systems will be one of my Spring 2008 courses. See a previous syllabus for Fall 2006.
I would like to elaborate more on Web 2.0, emerging dynamics and interactions of online communities, web services, and mobile Internet. When the updated syllabus is ready, I will post it.
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