Research & Projects

Annotated similarity graph thumbnail

Capturing Turn-by-turn Lexical Similarity in Text-based Communication

With Darren Gergle

In Proceedings of CSCW 2016

We developed a computational method to track changes in lexical similarity --- the extent to which people use the same words --- over the course of a conversation. Lexical similarity is associated with many positive social outcomes, so an automated way of measuring it over time is of use to social scientists. [PDF]

IM client screenshot

It's (Not) Simply a Matter of Time: The Relationship Between CMC Cues and Interpersonal Affinity

With Darren Gergle

In Proceedings of CSCW 2016

Best Paper Award, Honorable Mention

Using a custom-modified IM system, we tested the causal effect of CMC cues like emoticons on interpersonal affinity. We found a positive causal relationship of conversation duration and cue use on perceived affinity, and that the relationship depends on whether or not partners are able to see each other’s cues. We then demonstrate how one’s cue use is influenced by a partner’s cue use, and show that cues are often used in greeting and sign-off rituals. [PDF]

Feeling Aware screenshot

Feeling Aware: Investigating the Use of a Mobile Variable-Friction Tactile Display for Awareness Information

With Jeremy Birnholtz, Darren Gergle, and Sarah Sinclair

In Proceedings of MobileHCI 2015

We used a TPad tablet to explore using haptic feedback to provide ambient awareness to improve collaboration. [PDF]

Book Genome UI sketch

(mini)Book Genome Project, Pandora for books

With Miriam Boon and Christina Burghard
Advised by Bryan Pardo

Inspired by Pandora’s Music Genome Project, we used machine learning techniques to design a book recommendation system based on attributes of the books temselves rather than by comparing similar users.

Untangld screenshot

Untangld, a tool to help untangle webs of corruption

With Gino Vicci, Lee Fang, and Gillian White
Advised by Larry Birnbaum

In a collaboration with students in Northwestern’s Medill School of Journalism, we developed a workflow tool to help investigative journalists keep track of people, organizations, and the connections between them.

Cuebert sound board

Cuebert, an audio mixing board concept

With Michael Nagara, Jacek Spiewla, and Erin Zolkosky
Advised by Mick McQuaid

My team and I set out to determine whether there exists a new metaphor with which to represent audio on a surface, but, guided by our user research, we instead overhauled existing mixing board concepts using modern interaction techniques.

TreasureHunter screenshot

TreasureHunter, a system to increase thrift store use

With Sanghuk Koh, Amy Kuo, Debra Lauterbach, and Andrea McVittie
Advised by Mick McQuaid

The theme for the 2009 CHI Student Design Competition was “local”. We designed a web and mobile system that would increase the consumption of used goods in a community rather than new goods, which tend to be imported from elsewhere.

Friendenstein screenshot

Friendenstein, a social game to reduce energy use

With Jeremy Canfield, Mike Harmala, Taeho Ko, and Michael Nagara
Advised by Eytan Adar

Drawing on two major concepts from social influence theory, normative influence and social comparison, we designed a Facebook game that ties the availability of an in-game resource, energy “food” for an avatar Frankenstein, to the efficiency with which one uses their computer.

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Other fun stuff

Sometimes I do things just to amuse myself. Usually these things have something to do with music or computers. Some of them are listed here.