2008年6月17日 星期二

Cliff Tsai Final Report

Final Report
Knowledge sharing and yahoo answers: everyone knows something



Now Yahoo has taken Yahoo Answers to the next level, adding Social Networking capability to the Yahoo Answers interface, where users can connect and ‘make friends’ with other Yahoo Answers members who share similar interests and backgrounds.

International Social Network of 90 Million users Yahoo Answers, with the ‘flick of a switch’, has now become the Answers Network and in terms of social network size, is now one of the largest social networks online. Yes, Yahoo Answers now rivals MySpace and Facebook in terms of International reach and active member numbers.

But size is not all the Answers Network is about, it’s about niche social networking and in the tradition of other Yahoo social properties like MyBlogLog, Flickr’s “Contacts” and del.icio.us’ “Your Network”, the Yahoo! Answers Network Beta is working to enhance the overall user experience by helping people connect to the information they care about most through others with similar interests.

Knowledge networking in Yahoo! Answers combines the power of the world’s knowledge with the trust and context of personal communities,” said Tomi Poutanen, senior director of product management for Yahoo! social search. “Knowledge networks make Yahoo!

Answers a more personal, productive and interesting experience by directly connecting users to the information and people that are most interesting to them.”
Once Yahoo Answers users take advantage of the social networking they can keep track of the questions their friends asked, answered and ’starred’ (a Yahoo Star means an answer was voted for being of quality, kind of like a Thumbs Up, a Digg or Del.icio.us Vote).

Future of Yahoo , Answers & Social Network The Yahoo Answers Network is quite basic right now, but should grow into a networking model which Yahoo can use amongst its various channels and within search.

For example, I would like to see Yahoo Answers from my Yahoo Answers Network ‘friends’ be the first Answers served in the Yahoo Search results Answers box (usually located at the bottom of Yahoo Search results). I think by doing so, Yahoo can integrate social networking into search quite easily.

Additionally, as stated before, Yahoo essentially has various social properties which are not yet connected, but seem to be on the verge of unification in the near future.

Yahoo Answers Network
Flickr
MyBlogLog
Yahoo News
Yahoo Finance
MyWeb
Del.icio.us
Yahoo Video
Yahoo Bookmarks 2.0
Yahoo Photos

These are all powerful social networks in one way or another which are building themselves vertically from the ground up and which all enjoy loyal followings.
Yahoo is Already One Big Social Network imagines what will happen one Yahoo connects all of these properties, all of the sudden Yahoo.com will become a massive social network, much larger and active than MySpace and Facebook combined, and the Yahoo Network will thrive on the vibrant niche social channels below it.

Essentially, Yahoo will become the most organized and easy to use social network on the web. By the end of 2007, Yahoo will finally fill its social media potential and become an absolute threat to the smaller social media sites on the Internet, especially once Yahoo News becomes more of a social field.

And that, I believe, is the key. Yahoo has always been about humans connecting and sharing information:
Yahoo’s original search functionality was based upon discovering web sites which were recommended and reviewed by humans.

Yahoo Messenger is the connecting factor amongst Yahoo users and will be the core of the Yahoo social network.

Chat was the original Social Network, and Yahoo built its registered user base from Chat, Messenger and eMail : all forms of communication and sharing.
Yahoo Search’s mission is all about social networking : FUSE : Find, Use, Share, and Expand all human knowledge.

I believe that Yahoo has figured out that they do not have to go and buy Facebook for $1 Billion, hoping to compete with Fox Interactive.
Instead, Yahoo has gone the intelligent route in using all of the technology and loyal registered userbase at their disposal to build something which will be more popular, larger, informative and active than Facebook or MySpace.

Yahoo Answers Network is a logical first step in achieving this goal, and an original one. While Microsoft, Amazon and others are working to launch their own Q&A services to try and catch up with Yahoo Answers, Yahoo Answers has already gone and taken its service to the next level.

2008年6月16日 星期一

Cliff Tsai Homework 03-15-2008

1. Read Paper 1 & Paper 2. Provide a summary for each of the paper.
ANS:
Reading ….

2. Read Chap. 4 of the textbook. What is the Business-to-business model?
ANS:
Business to business(B2B) is the Businesses modal using web internal or any kinds of electronic commerce transactions. With online catalogs to provide option on the merchandise of any kind selling products to others. Using this modal, building many kinds of commerce transactions to sell any kind of we want to sell. These commerce are characterized by high-volume, low-value purchases, repeat business from the same customers, and high order processing costs for both buyers and sellers.
B2B catalog online are immediate cost savings and an ability to provide better service. --Reduced cost of selling
Reduced order processing costs
Improved service levels for low-volume customers
Higher-quality information for customers
Accurate information
B2B is also used as an adjective to describe any activity, sales, or e-commerce, that occurs between businesses and consumers.

3. Digital goods can be distributed over the Internet but physical goods have to be delivered logistically. What are digital goods? What are the differences between the two?
ANS:
What are the digital goods ?, for example like adobe photoshop(software),kkbox(online music),the warcraft(online game)....etc.
Digital goods include:
documents
data
reference information;
sound
video
images
software
Different between digital goods and physical goods. Digital goods can be transfer by internet or not real but physical goods must be transfer by human or contact. And The digital goods can be play or performs on physical goods.

4. Using RSS to track many blogs at one time.
ANS:
RSS stands is a easy way to publish some topics, update notices via the other blogs, for example, refer the weather status I link. RSS content can be read using software called an "RSS reader", "feed reader" or an "aggregator". The user subscribes to a feed by entering the feed's link into the reader or by clicking an RSS icon in a browser that initiates the subscription process. The reader checks the user's subscribed feeds regularly for new content, downloading any updates that it finds.!

Cliff Tsai Homework 3-29-2008

1. Read the abstract of Paper 3, 6 and 7. If possible, skim the whole paper.Summarize the papers briefly.

Ans:
Paper 3: Social Network Analysis to Blog-based Online Communities
In this paper, student feedback is collected and behavior patterns analyzed based on social network theory. Students are satisfied to be able to archive the process in the class participation.Using blogs is found to simplify the tasks of reducing piracy.For the purpose of knowledge sharing blogs are a viable platform for ideas to float and grow.Blogs are easy to maintain, low cost, easy to deploy, and simple to get stared.

Paper 6:Mobile Computing for Indoor Wayfinding Based on Bluetooth Sensors for Individuals with Cognitive Impairments
Bluetooth operated in this discovery mode saves power, eliminate manual passkey challenges, and reduce privacy and security concern as the use does not expose her ID. Based on the Bluetooth beacon received, the position where the user is can be identified at the remote server and enable the way finding sequences. The Bluetooth sensors can automatically be read from several meters away and does not have to be in the line of sight of the reader.

Paper 7:The Authors created a prototype which was tested by the job coaches one month after the survey and extensive field study. The user feedback will be our guidelines to further improve the prototype. In the designed architecture, we provide four solutions as database of employers, database of employment service, database 289 of mental disabled persons, and software package for briefing candidate employers.This paper applied the technology of Web2.0 in an employment services system for individuals with mental impairments to make their organizational operation more efficient, called Nonprofit 2.0. and the prototype has been built and tested by the job coaches with significant success.
 
2. According to Chap. 6 of Textbook. what is a functional architecture of e-commerce systems?

Ans:
The specification of these functional units and the interfaces between them defines the architecture of the system. The system architecture is the way it decomposes the system into functional units,There are four components of e-commerce systems:1) Client: computer system, typically a PC, which is connected to the internet. (e.g.: home PC)2) Merchant: This means that computer system or systems that contain the seller's electronic catalog and, in the case of online goods, products for over-the-Net fulfillment. (e.g.: servers).3) Transaction system: computer system that can process a particular order and that are responsible for payment, record keeping, and other business aspects of the transaction. (e.g.: application servers).
4) Payment gateway: computer system that routes payment instructions into existing financial networks such as for credit card authorization and settlement. (e.g.: resource managers).

3. Lab: PageRankPageRank is a tool for measuring the importance of websites. Given every URL, there is a PageRank value for it.

Ans:
CNN http://www.cnn.com/ - PageRank: 9/10

New York Times http://www.nytimes.com - PageRank: 9/10

Cliff Tsai Homework 5-3-2008

Paper 12 --Empirical analysisof online social networksin the ageofWeb 2.0

Today the World Wide Web is undergoing a subtle but profound shift to Web 2.0, to become more of a social web. The use of collaborative technologies such as blogs and social networking site (SNS) leads to instant online community in which people communicate rapidly and conveniently with each other. Moreover, there are growing interest and concern regarding the topological structure of these new online social networks.
We studied the frequency of shortest path length, demonstrating that the famous law “six degrees of separation” is present in both the networks. We confirmed that for both networks, the clustering coefficient’s dependence on degree is nontrivial, further suggesting some level of hierarchy in topological organizations. Finally, we examined the mixing pattern, We found that the blogging network shows disassortative mixing pattern in general, while Xiaonei network is an assortative one. Our case study might help us to understand the topological features of online social network in the age of Web 2.0.
We studied the frequency of shortest path length, demonstrating that the famous law “six degrees of separation” is present in both the networks. We confirmed that for both networks, the clustering coefficient’s dependence on degree is nontrivial, further suggesting some level of hierarchy in topological organizations. Finally, we examined the mixing pattern, We found that the blogging network shows disassortative mixing pattern in general, while Xiaonei network is an assortative one. Our case study might help us to understand the topological features of online social network in the age of Web 2.0.

Paper 13-- A short walk in the Blogistan

An important contribution of our work is the methodology we developed to identify emerging interests by mining hyperlinks in blogs and their change over time. The methodology constitutes a general approach to mine evolving interconnection networks that we believe can have applications well beyond the Blogistan. By canceling out “repeated patterns” we are able to identify emerging ones.
They said an important contribution of their work is the methodology they developed to identify emerging interests by mining hyperlinks in blogs and their change over time. The methodology constitutes a general approach to mine evolving interconnection networks that they believe can have applications well beyond the Blogistan.

Paper 14-Analysis of User Relations and Reading Activity in Weblogs

Various definitions for the relationship are considered, based on factors such as comments and trackbacks, in order to analyze what relationship is the most effective for the purpose. Second, the Authors analyze whether blogs that are read frequently by the users can be identified from blog relationships. The range of 2-hop connection from a blog is considered, and an attempt is made, by using the index, to reveal the reading behavior of users, such as strength and kind, on the basis of the number of routes. It is evident that bookmarks have a strong effect, and that users circulate around the bookmarks in a blog network.

2008年3月7日 星期五

Homework 2-23-2008

1. List the companies Google acquired year by year.Briefly describe the strategic implications of each acquisition.

Comment:Link My Document:http://docs.google.com/Doc?id=dcnnjgs_1fzp788hp

2. Summarize the What Is Web 2.0 by Tim O'Reillyin one page.

Comment:Link My Document:http://docs.google.com/Doc?id=dcnnjgs_1fzp788hp

3. Reading Assignment: Read TS Ch. 1~2.
1. According to the book by Treese and Stewart, what is the commerce value chain? Why not see them on an individual basis?







2. Is the Internet different from other media? Why?







3. On this Internet-based tool, you are able to edit a paragraph while someone is working on another. In order to do so, you got to have an account to login Google. Please use your email to apply for one so that you can use it now. A link to the document will be included in the message, please just click on the link to collaborate.

2008年3月1日 星期六

Homework 3-01-2008




1. According to the book by Treese and Stewart, what is the commerce value chain? Why not see them on an individual basis?


※Ans:




◎Attract customers ◎Interact with customers ◎Act on customer instructions ◎React on customer needs and feedbacks



2. Is the Internet different from other media? Why?


※Ans:

Yes. Internet is different from other media. The internet to include videos, mail, radio,book,blog. We can easy search all videos or book on the internet. We aslo can control consumer products through Internet ex(TV, DVR, electric light.....). This strong function is not that the single media can replace.


3. On this Internet-based tool, you are able to edit a paragraph while someone is working on another. In order to do so, you got to have an account to login Google. Please use your email to apply for one so that you can use it now. A link to the document will be included in the message, please just click on the link to collaborate.

※Ans:

Please be noted that not only can you browse the document but also you can edit and update it freely. You may see other colleagues online at the same time and refrain from making updates. Please feel free to go ahead. The software will resolve change conflicts for you.The revision history will keep a log of all changes. So your changes will be noticed by other colleagues and re-reviewed.


Convert one of your Word document using
Google docs.
※Ans:
http://docs.google.com/Doc?id=dcnnjgs_0dcg33jhd

4. Customize your blogs.• Check into your blog homepage.• Enter "setting"• Select "Add links"• Write down "http://enminstral.blogspot.com/" and the title as "Web Services and Advanced Internet Systems"• Add your own favorite links.

Ans: already done it!