Paper Study-- Distance Learning and Student Satisfaction in Java
A. Settle, C. Settle, JUCS, Vol 13, Iss 9. 2007
Distance learning is an increasingly important way of delivering content for educational institutions. As a result, it is important to understand how the experiences that students have in distance-learning courses differ from the experiences of more traditional students.
In this article they obtain statistically significant results different from the earlier article when a distance-learning course that uses the dominant model is considered. In particular, the course evaluations for online and traditional sections of introductory Java programming courses varied in some notable ways.
The results of this study are different from the initial results obtained by the authors. Distance-learning students are less satisfied than either traditional students or their peers in live sibling sections with the course. The distance-learning students feel that the course is less well-organized and that the course objectives are not met as well.
This result cannot be attributed to the type of live section or to the type of Java course, as their restricted regression shows. This explanation is consistent with previous work on student satisfaction with online courses that has shown distance learning students to be sensitive to course organization and to rate the course poorly if excellent course organization does not compensate for a lack of interaction.
Most striking are the results for instructor-related questions. Distance-learning students rate the instructor lower on seven out of the twelve questions. While some are understandable, such as encouraging student participation, the effect spills over to other questions, such as the instructor’s knowledge of the subject, whether the students want to take another course with the instructor, or the instructor’s teaching effectiveness as compared to other instructors. Distance-learning students are unhappy with the course and attribute the change to the instructor. One hypothesis for these results is that an increasingly interactive class, which seems to be the situation when you consider the analysis of the data for live students, would highlight the shortcomings of the distance-learning format. Unable to understand that the situation is inherent to distance-learning courses using this format, some distance-learning students may penalize the instructor. Even those students who understand the situation lack the ability to express their frustration with the format.
Although Distance-learning is a trend now, it can’t replace traditional classes. No matter how flexible and convenient Distance-learning is, students and instructors can’t “feel” each other. Without face to face communication, miscellaneous questions and answers between students and instructors may be misinterpreted. I guess that’s why the “Distance-learning students are less satisfied than either traditional students or their peers in live sibling sections with the course”. I believe appropriate and timely classes face to face may improve the satisfactions of students with Distance-learning classes. No matter how many compliments the instructors and students gave, it couldn’t be better than smiles on their faces! ^__^
2008年6月4日 星期三
2008年6月2日 星期一
Homework 5-3-2008
Paper 12-Empirical analysis of online social networks in the age of Web 2.0
In this paper, they present empirical analysis of statistical properties of two important Chinese online social networks, namely, Sina blogs and Xiaonei SNS—a blogging network and an SNS open to college students, and they investigate the distribution of topological distance. The former is the largest Chinese blog space provider and has more than 2 million registered users in the mainland of China. The latter is the largest and most popular social networking service provider in China.
It is found that both the networks have small-world and scale-free features already observed in real-world and artificial networks. Further, the correlations between degree (in/out) and degree (in/out), clustering coefficient and degree, popularity (in terms of number of page views) and i-degree (for the blogging network), etc. are examined. It is also shown that the blogging network is a disassortative one, whereas the Xiaonei network and assortative one.
Paper 13-A short walk in the Blogistan
In this paper, they show how to identify emerging interests and argued that in contrast to traditional search, this mandates not only large scope analysis of referenced links but also of their evolution over time. Their multi-hop crawl has presented a reasonable approximation of the connected portion of the blogistan along with several of its interesting attributes such as the number unique domains that host blogs and the relatively low number of IP addresses.
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
In this study, they analyze which pages the users in a blog network read most frequently from the viewpoint of the relationship among blogs, and interpret the result. This paper focuses on the relationships among blogs and analyzes how great an effect blog relationships have on the reading behavior of the user. In this paper, they investigate the database of Doblog, an existing blog hosting service. Since users of this service write blogs or comments after logging in, the data on the reading behavior of the users can be acquired. 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5月28日 星期三
2008年3月14日 星期五
Homework3
1. Track your comments at a focal point -- Done.
2. Using personal portal. -- Done.
3. Make your blog organized by adding labels -- Done.
4. Reading Assignments: Read Chap 3. Answer the following questions.
What are the commercial values of Internet?
The sources of Internet value are that the Internet can be used to transform customer relationships, and it can displace or alter traditional sources of business value.
By exploiting the Internet, many aspects of traditional commerce can evolve from being supplier-centered to being customer-centered. Need to consider what the customers are interested.
By moving commerce from the physical world to the information world, enables commerce to shift from dealing with atoms to dealing with bits.
List some business strategies for online commerce.
channel master strategy-a customer-centered business organized around a product
e.g. Cisco
customer magnet strategy-a customer-centered business organized around meeting all the needs of a particular group of customers
e.g. Yahoo
value chain pirate-a strategy focus on the supply chain
e.g. Autoweb
digital distributor-a strategy focus on distribution-reaching the customer
e.g. Monster.com
2. Using personal portal. -- Done.
3. Make your blog organized by adding labels -- Done.
4. Reading Assignments: Read Chap 3. Answer the following questions.
What are the commercial values of Internet?
The sources of Internet value are that the Internet can be used to transform customer relationships, and it can displace or alter traditional sources of business value.
By exploiting the Internet, many aspects of traditional commerce can evolve from being supplier-centered to being customer-centered. Need to consider what the customers are interested.
By moving commerce from the physical world to the information world, enables commerce to shift from dealing with atoms to dealing with bits.
List some business strategies for online commerce.
channel master strategy-a customer-centered business organized around a product
e.g. Cisco
customer magnet strategy-a customer-centered business organized around meeting all the needs of a particular group of customers
e.g. Yahoo
value chain pirate-a strategy focus on the supply chain
e.g. Autoweb
digital distributor-a strategy focus on distribution-reaching the customer
e.g. Monster.com
2008年3月5日 星期三
Homework2
1. According to the book by Treese and Stewart, what is the commerce value chain? Why not see them on an individual basis?
The Value chain for a product is the chain of adding value in creating and delivering a product. Because when a consumer buys a manufactured item in a store, it is merely one step in a complex process that began with the raw materials used in creating the item. At each step in that process, something of value was added. That value might have been refining the raw materials, molding them into a useful shape, transporting them for further processing, or selling the item to the final consumer.
The components of general commerce value chain are as follows.
1. Attract customers.
2. Interact with customers.
3. Act on customer instructions.
4. React to customer requests.
An individual basis may not calculate all the values for a product or may lose some components of general commerce value chain.
2. Is the Internet different from other media? Why?
One of the most important properties of the Internet that defines how the Internet is different from other media is that everyone can be a publisher, reaching the same worldwide audiences that giant media conglomerates reach.
Traditional mass media, such as newspapers, magazines, and television, reach large audiences, but the ability to do so is limited, either by the availability of scarce resources such as available television channels, or simply by the investment required to create and distribute the medium, but these limitations do not apply to the Internet.
According to "What is social media?", the author called Internet media as "social media" or "new media". Not like the old media, the new media (e.g. blog...) is infinite, syndicatable and linkable and easily reused, can be mashed up with data from other services...etc. It has the ability to interact with its audiences, and all the posts will be archived. You can modify the post at any time, and can put not only text, but audio, video, or photos in one post and hide your post if you want. To sum up, the Internet -new media- is very different from old media!!
3. Click here to collaborate on this document.
(Please having a request to access this document then I can invite you as a collaborator)
4. Customize my blog
The Value chain for a product is the chain of adding value in creating and delivering a product. Because when a consumer buys a manufactured item in a store, it is merely one step in a complex process that began with the raw materials used in creating the item. At each step in that process, something of value was added. That value might have been refining the raw materials, molding them into a useful shape, transporting them for further processing, or selling the item to the final consumer.
The components of general commerce value chain are as follows.
1. Attract customers.
2. Interact with customers.
3. Act on customer instructions.
4. React to customer requests.
An individual basis may not calculate all the values for a product or may lose some components of general commerce value chain.
2. Is the Internet different from other media? Why?
One of the most important properties of the Internet that defines how the Internet is different from other media is that everyone can be a publisher, reaching the same worldwide audiences that giant media conglomerates reach.
Traditional mass media, such as newspapers, magazines, and television, reach large audiences, but the ability to do so is limited, either by the availability of scarce resources such as available television channels, or simply by the investment required to create and distribute the medium, but these limitations do not apply to the Internet.
According to "What is social media?", the author called Internet media as "social media" or "new media". Not like the old media, the new media (e.g. blog...) is infinite, syndicatable and linkable and easily reused, can be mashed up with data from other services...etc. It has the ability to interact with its audiences, and all the posts will be archived. You can modify the post at any time, and can put not only text, but audio, video, or photos in one post and hide your post if you want. To sum up, the Internet -new media- is very different from old media!!
3. Click here to collaborate on this document.
(Please having a request to access this document then I can invite you as a collaborator)
4. Customize my blog
2008年2月29日 星期五
Homework1
1. List the companies Google acquired year by year. Briefly describe the strategic implications of each acquisition.
This is a listing of Google's corporate acquisitions, including acquisitions of both companies and individual products.
Acquisition Date | Company/Product | Business Area & Their Technologies | Value (USD) |
Deja's Usenet archive | undisclosed | ||
Outride, Inc. | Spin-off from Xerox PARC. | undisclosed | |
February, 2003 | undisclosed | ||
April, 2003 | Neotonic Software | CRM technology. | undisclosed |
April, 2003 | Applied Semantics | Advertising technology. | $102 million |
Kaltix | Search engine technology. | undisclosed | |
Sprinks | Paid listings unit of Primedia. | undisclosed | |
Genius Labs | undisclosed | ||
Ignite Logic | Website creation technology. | undisclosed | |
Baidu (2.6% stake) | Chinese language search engine. All shares were sold in June, 2006[10][11] | $5 million | |
Photo management software. | undisclosed | ||
Mapping software; used in Google Earth. | undisclosed | ||
October 2004 | Where2 | Mapping software; used in Google Maps. | undisclosed |
Sept.-Dec., 2004 | ZipDash | Used in Google Ride Finder. | undisclosed |
ca. 2005 | 2Web Technologies | Web-based spreadsheet. | undisclosed |
ca. 2005 | Phatbits | undisclosed | |
Web analysis. | undisclosed | ||
undisclosed | |||
July, 2005 | Reqwireless | Web browser and Mobile email. | undisclosed |
Current Communications Group | $100 million (partial investment) | ||
Software for Handheld devices. | undisclosed | ||
November, 2005 | Skia | Graphics software. | undisclosed |
Akwan Information Technologies | Latin American internet operations. | undisclosed | |
Mobile Solution Provider, Germany. | undisclosed | ||
AOL (5% stake) | $1 billion | ||
Radio advertising software and platform. | $102 million | ||
Blog analysis. | undisclosed | ||
Writely, online word processing. | undisclosed | ||
@Last Software | SketchUp, 3-D modeling. | undisclosed | |
Advanced search method. | undisclosed | ||
Neven Vision | undisclosed | ||
Website applications | undisclosed | ||
November, 2006 | Video sharing (San Bruno, CA) | $1.65 billion | |
December, 2006 | Mapping solutions | $28 million | |
January, 2007 | Xunlei (partial acquisition) | Network, file-sharing. | undisclosed |
February, 2007 | $23 million | ||
March, 2007 | undisclosed | ||
April, 2007 | Presentation software | undisclosed | |
April, 2007 | Marratech video conferencing software | Video conferencing (Stockholm, Sweden) | undisclosed |
Online Advertising | $3.1 billion | ||
GreenBorder Technologies | Desktop enterprise security | undisclosed | |
Geospatial Photo-sharing Service | undisclosed | ||
RSS Feeds (Chicago, IL) | $100 million | ||
Parallel Processing | undisclosed | ||
Presentations Software | undisclosed | ||
VOIP Phone Aggregation (Fremont, CA) | $45 million | ||
High resolution aerial cameras | undisclosed | ||
Communications Security (San Carlos, CA) | $625 million | ||
Google Blogger Api Engineering Team | undisclosed | ||
Mobile social network and communication platform | undisclosed | ||
An activity stream and presence sharing service that works from the Web and mobile phones (Helsinki) | undisclosed |
Reference from: Wikipedia
2. Summarize the What Is Web 2.0 by Tim O'Reilly in one page.
In exploring the seven principles below, we've highlighted some of the principal features of Web 2.0. Each of the examples we've explored demonstrates one or more of those key principles, but may miss others. Let's close, therefore, by summarizing what we believe to be the core competencies of Web 2.0 companies:
Services, not packaged software, with cost-effective scalability
Control over unique, hard-to-recreate data sources that get richer as more people use them
Trusting users as co-developers
Harnessing collective intelligence
Leveraging the long tail through customer self-service
Software above the level of a single device
Lightweight user interfaces, development models, AND business models
For more information: What was it that made us identify one application or approach as "Web 1.0" and another as "Web 2.0"? We began trying to tease out the principles that are demonstrated in one way or another by the success stories of web 1.0 and by the most interesting of the new applications.
The Web As Platform--Like many important concepts, Web 2.0 doesn't have a hard boundary, but rather, a gravitational core. Some comparisons as followings.
Case 1: Netscape vs. Google
Case 2: DoubleClick vs. Overture and AdSense
Case 3: Akamai vs. BitTorrent
Harnessing Collective Intelligence--One of the most highly touted features of the Web 2.0 era is the rise of blogging. One of the things that has made a difference is a technology called RSS. RSS is the most significant advance in the fundamental architecture of the web since early hackers realized that CGI could be used to create database-backed websites.
Data is the Next Intel Inside--Every significant internet application to date has been backed by a specialized database: Google's web crawl, Yahoo!'s directory (and web crawl), Amazon's database of products, eBay's database of products and sellers, MapQuest's map databases, Napster's distributed song database. As Hal Varian remarked in a personal conversation last year, "SQL is the new HTML." Database management is a core competency of Web 2.0 companies, so much so that we have sometimes referred to these applications as "infoware" rather than merely software.
End of the Software Release Cycle--As noted above in the discussion of Google vs. Netscape, one of the defining characteristics of internet era software is that it is delivered as a service, not as a product. This fact leads to a number of fundamental changes in the business model of such a company: 1. Operations must become a core competency. 2. Users must be treated as co-developers.
Lightweight Programming Models--1. Support lightweight programming models that allow for loosely coupled systems. 2. Think syndication, not coordination. 3. Design for "hackability" and remixability. Another key web 2.0 principle, which we call "innovation in assembly." When commodity components are abundant, you can create value simply by assembling them in novel or effective ways.
Software Above the Level of a Single Device-- One other feature of Web 2.0 that deserves mention is the fact that it's no longer limited to the PC platform. In his parting advice to Microsoft, long time Microsoft developer Dave Stutz pointed out that "Useful software written above the level of the single device will command high margins for a long time to come."
Rich User Experiences--The competitive opportunity for new entrants is to fully embrace the potential of Web 2.0. Companies that succeed will create applications that learn from their users, using an architecture of participation to build a commanding advantage not just in the software interface, but in the richness of the shared data.
2008年2月25日 星期一
Blog for "Web Services and Advanced Internet Systems" is activated...
Thank you for coming.
Please don't hesitate to give me any advice and opinions.
Please don't hesitate to give me any advice and opinions.
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