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Research Projects

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

Although a wide variety of approaches identify vulnerabilities in Android apps, none attempt to determine exploitability of those vulnerabilities. Exploitability can aid in reducing false positives of vulnerability analysis, and can help engineers triage bugs. Specifically, one of the main attack vectors of Android apps is their inter-component communication (ICC) interface, where apps may receive messages called Intents.

Research Area(s): 
Project Dates: 
January 2017

Socio-emotional content is vital for building trusting, productive relationships that go beyond task-oriented communication in teams. But for distributed collaborators, it is challenging to communicate emotional status because of working over a distance. We propose to use non-work-related, non-competitive, and playful drawing online to encourage nonverbal expressions of emotions and interactions.

Project Dates: 
January 2015

We are on the cusp of a major opportunity: software tools that take advantage of Big Code. Specifically, Big Code will enable novel tools in areas such as security enhancers, bug finders, and code synthesizers. What do researchers need from Big Code to make progress on their tools? Our answer is an infrastructure that consists of 100,000 executable Java programs together with a set of working tools and an environment for building new tools.

Research Area(s): 
Project Dates: 
March 2019

DELDroid is an automated system for determination of least privilege architecture in Android and its enforcement at runtime. A key contribution of our approach is the ability to limit the privileges granted to apps without the need to modify them.

DELDroid utilizes static program analysis techniques to extract the exact privileges each component needs for providing its functionality. A Multiple-Domain Matrix representation of the system's architecture is then used to automatically analyze the security posture of the system and derive its least-privilege architecture.

Research Area(s): 
Project Dates: 
July 2016

Yelp reviews and ratings are important source of information to make informed decisions about a venue. We conjecture that further classification of yelp reviews into relevant categories can help users to make an informed decision based on their personal preferences for categories. Moreover, this aspect is especially useful when users do not have time to read many reviews to infer the popularity of venues across these categories.

Research Area(s): 
Project Dates: 
January 2011 to February 2019

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

Anti-social behavior such as flaming and griefing is pervasive and problematic in many online venues. This behavior breaks established norms and unsettles the well-being and development of online communities. In a popular online game, Riot Games's League of Legends, the game company received tens of thousands of complaints about others every day. To regulate what they call "toxic" behavior, Riot devised the "Tribunal" system as a way of letting the community to police itself. The Tribunal is a crowdsoucing system that empowers players to identify and judge misbehavior.

Project Dates: 
April 2012

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