Publications

Publication date: 2010

RESTful services on the Web expose information through retrievable resource representations that represent self-describing descriptions of resources, and through the way how these resources are interlinked through the hyperlinks that can be found in those representations. This basic design of RESTful services means that for extracting the most useful information from a service, it is necessary...

Publication date: 2010

The field of intelligent tutoring systems has been using the well known knowledge tracing model, popularized by Corbett and Anderson (1995), to track student knowledge for over a decade. Surprisingly, models currently in use do not allow for individual learning rates nor individualized estimates of student initial knowledge. Corbett and Anderson, in their original articles, were interested in...

Publication date: 2010
Information about federal spending can affect national priorities and government processes, having impacts on society that few other data sources can rival. However, building effective open government and transparency mechanisms holds a host of technical, conceptual, and organizational challenges. To help guide development and deployment of future federal spending transparency systems, this paper...
Publication date: 2010
The W3C's Geolocation API may rapidly standardize the transmission of location information on the Web, but, in dealing with such sensitive information, it also raises serious privacy concerns. We analyze the manner and extent to which the current W3C Geolocation API provides mechanisms to support privacy. We propose a privacy framework for the consideration of location information and use it...
Publication date: 2010
Current and upcoming demand-response systems provide increasingly detailed power-consumption data to utilities and a growing array of players angling to assist consumers in understanding and managing their energy use. The granularity of this data, as well as new players' entry into the energy market, creates new privacy concerns. The detailed per-household consumption data that advanced metering...
Publication date: 2010

This article examines forms of shared access to technology where some privileges of ownership are retained. Sharing is defined as informal, non-remunerative resource distributing activities where multiple individuals have a relationship to a single device as purchaser, owner, possessor, operator and/or user. In the specific case of mobile phones in rural Uganda, dynamics of social policing and...

Publication date: 2010

A lot of people have blamed short-term thinking for causing our current economic troubles, which has set off a debate about what time window we should use to assess a CEO’s performance. Today boards of directors, senior managers, and investors intensely want to know how CEOs handle the ups and downs of running businesses over an extended period. Many executive compensation plans define the “...

Publication date: 2009

What is the future of digital imaging? Mobile imaging technologies have been changing rapidly and will continue to do so. We explore new developments in cameraphone photography with the goal of improving the design of the next generation of mobile imaging devices. We equipped 26 diverse participants with cameraphones, photo uploading and sharing software, and access to online photo-accounts...

Publication date: 2009

Conventional wisdom about young people's use of digital technology often equates generational identity with technology identity: today's teens seem constantly plugged in to video games, social networks sites, and text messaging. Yet there is little actual research that investigates the intricate dynamics of youth's social and recreational use of digital media. Hanging Out, Messing Around,...

Publication date: 2009

There has been much recent interest in the development of tools to foster remote collaboration and shared creative work. An open question is: what are the guidelines for this process? What are the key socio-technical preconditions required for a geographically distributed group to collaborate effectively on creative work, and are they different from the conditions of a decade or two ago? In an...

Publication date: 2009
This book focuses on the human users of search engines and the tool they use to interact with them: the search user interface. The truly worldwide reach of the Web has brought with it a new realization among computer scientists and laypeople of the enormous importance of usability and user interface design. In the last ten years, much has become understood about what works in search interfaces...
Publication date: 2009

This nationally representative telephone (wire-line and cell phone) survey explores Americans' opinions about behavioral targeting by marketers, a controversial issue currently before government policymakers. Behavioral targeting involves two types of activities: following users' actions and then tailoring advertisements for the users based on those actions. While privacy advocates have...

Publication date: 2009

Service management and design has largely focused on the interactions between employees and customers. This perspective holds that the quality of the “service experience” is primarily determined during this final “service encounter” that takes place in the “front stage.” This emphasis discounts the contribution of the activities in the “back stage” of the service value chain where materials or...

Publication date: 2009

There is one thing that moves online consumers to click “add to cart,” that allows sellers to accept certain forms of online payment, and that makes online product reviews meaningful: trust. Without trust, online interactions can’t advance. But how is trust among strangers established on the Internet? What role does reputation play in the formation of online trust? In eTrust, editors...

Publication date: 2009
Publication date: 2009
The concept of location has become very popular in many applications on the Web, in particular for those which aim at connecting the real world with resources on the Web. However, the Web as it is today has no overall location concept, which means that applications have to introduce their own location concepts and have done so in incompatible ways. On the other hand, there are a number of...

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