November 2009 - Vol. 52 No. 11

November 2009 issue cover image

Features

Research and Advances Research highlights

Declarative Networking

Declarative Networking is a programming methodology that enables developers to concisely specify network protocols and services, which are directly compiled to a dataflow framework that executes the specifications. 
Research and Advances Research highlights

Predicting Structured Objects with Support Vector Machines

Machine Learning today offers a broad repertoire of methods for classification and regression. But what if we need to predict complex objects like trees, orderings, or alignments? Such problems arise naturally in natural language processing, search engines, and bioinformatics. The following explores a generalization of Support Vector Machines (SVMs) for such complex prediction problems.
Research and Advances Virtual extension

Offshoring and the New World Order

Outsourcing as a means of meeting organizational information technology (IT) needs is a commonly accepted and growing practice; one that is continually evolving to include a much wider set of business functions: logistics, accounting, human resources, legal, and risk assessment.3 Today firms of all sizes are rushing overseas to have their IT work performed by offshore vendors. Such change — the pundits argue — is merely the natural progression of first moving blue-collar work overseas followed by whitecollar work. IT jobs are most visible to us in the IT field, but the same is happening to other business functions/processes. With labor costs in India well below the U.S. and technical skills equal or better, the argument for offshoring is compelling. (Offshoring refers to the migration of all or a significant part of the development, maintenance and delivery of IT services to a vendor located in another country, typically in the developing world like India and China. The service provider hires, trains and manages the personnel. Alternatively, an organization might set up IT operations offshore but still controlled by the organization's management2). Here, I seek to analyze some of the arguments underlying the notion of offshoring and implications for the IT field from a U.S. perspective. While I am aware that such an undertaking is unquestionably a thorny proposition, I feel that too little 'serious' thought has been given to this issue. Currently, we are plagued by hype (both positive and negative) but little critical reflection. Hopefully, this paper can begin to reverse this trend and shed light on the challenges we face.
Research and Advances Virtual extension

And What Can Context Do For Data?

Common to all actors in today's information world is the problem of lowering the "information noise," both reducing the amount of data to be stored and accessed, and enhancing the "precision" according to which the available data fit the application requirements.
Research and Advances Virtual extension

Why Web Sites Are Lost (and How They’re Sometimes Found)

The Web is in constant flux — new pages and Web sites appear daily, and old pages and sites disappear almost as quickly. One study estimates that about two percent of the Web disappears from its current location every week. To automate recovering lost Web sites, we created a Web-repository crawler named Warrick that restores lost resources from the holdings of four Web repositories.
Research and Advances Virtual extension

If Your Pearls of Wisdom Fall in a Forest . . .

The idea of doing things that can improve something is an extremely popular concept in American culture. For example, I found the phrase, make a difference , in 129 million Web pages in a Yahoo! search in July 2009. The concept typically applies to impacts at local levels because, until recently, few people had opportunities to do things that could positively affect substantial numbers of people throughout the country in which they live or even throughout the world. After dot com bubble burst, many investors found that the slogan that "the Internet changes everything" did not apply to many of the requirements for having a successful business. However the Internet really does provide opportunities for those who create knowledge to share it with more people who can use it to advantage, and share it more quickly than through other means. Of course, this potential capability to share materials is limited by people's abilities to find useful information in the billions of pages on the Internet. Yahoo reported indexing over 19 billion pages in 2005. (Perhaps responding to criticism of the estimates,1 the leading search engine companies no longer publish counts of pages indexed. Although no one really knows how big the "haystack" is, the simile about "finding a needle" is quite applicable to the Internet.) Nevertheless there are two aspects of innovative materials that work in favor of their being found: • The goals of search engine companies. • The nature of knowledge.

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