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Research Projects

Multi-criteria test-suite minimization aims to remove redundant test cases from a test suite based on some criteria such as code coverage, while trying to optimally maintain the capability of the reduced suite based on other criteria such as fault-detection effectiveness. Existing techniques addressing this problem with integer linear programming claim to produce optimal solutions. However, the multi-criteria test-suite minimization problem is inherently nonlinear, due to the fact that test cases are often dependent on each other in terms of test-case criteria.

Research Area(s): 
Project Dates: 
July 2017

Scientists are always working to determine which articles are interesting to them, timely, and relevant to their research. If working in an unfamiliar research area, searching for papers becomes even more difficult. By allowing users to vote on the prominence of links, social news sites like Slashdot, Digg, and reddit.com have addressed the issue of surfacing new and interesting content from across the internet. Moreover, they provide opportunities to provide context and comment on the content.

Research Area(s): 
Project Dates: 
October 2013

Sustainability has become a pressing concern, especially given the looming effects of climate change. Sustainable development aims to meet current needs while ensuring sustainability of natural systems and the environment so as to not compromise the ability of future generations to meet their own needs. Current software engineering methods, however, do not explicitly support sustainability or sustainable development.

Project Dates: 
January 2011

Over the last several years we have been studying how digital media affects people’s lives. Rather than bring people into a laboratory, I view the real world as a living laboratory--I go where people live, study, and work, to study them as they go about their normal activities. Digital media use affects people’s mood, stress, and behavior quite significantly. In particular, people experience disruptions when working with digital media due to multi-tasking and interruptions.

Research Area(s): 
Project Dates: 
January 2004

This research addresses challenges in understanding and developing lightweight, Web-based informal music education environments that bring the complexity and joy of orchestral music to diverse audiences. The challenges span from providing awareness and appreciation of different classical music genres through creation of multi-instrument musical compositions, in ways that are fun and interactive.

Project Dates: 
January 2011

Microtask crowdsourcing systems such as FoldIt and ESP partition work into short, self-contained microtasks, reducing barriers to contribute, increasing parallelism, and reducing the time to complete work. Could this model be applied to software development? To explore this question, we are designing a development process and cloud-based IDE for crowd development.

Project Dates: 
May 2012

The fantasy genre has captivated our attention in popular media for decades, providing us with inspiring imagery of valiant fighters and enchanting spell casters.  Guild Wars 2, a massively multiplayer online game (MMO), introduces a range of races and characters not found in the traditional fantasy genre.  When first experiencing a new fantasy world, does knowledge and information gained from previously consumed media influence players’ interpretations of new fantasy environments?

Research Area(s): 
Project Dates: 
January 2013

Bitcoin is a digital currency and payment platform that has been the source of much media attention. The currency is not backed by a government like most conventional currencies but is part of a democratic and dencentralized movement. Bitcoin transactions are pseudo-anonymous in a similar way to cash money. Why do people use this currency? How do their political values align with their usage of bitcoin? Furthermore, how does the community regulate itself in the absence of a formal hierarchical structure? Lastly, how do anonymous users form communities?

Research Area(s): 
Project Dates: 
October 2013

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