Welcome to My GeoCities Tribute!

About Me

I hold courtesy appointments in the Department of Computer Science and am an affiliate of the ATLAS Institute, Institute for Behavioral Research, American Politics Research Lab, and REACH.

My research and teaching is in the areas of social computing, network science, and data science and has three primary foci: (1) high-tempo online collaborations, (2) human-centered data science, and (3) cannabis informatics.

I use digital traces of social behavior to explore how disruptions illuminate the emergence, stabilization, and dissolution of collaborative social structures. The primary empirical settings for this research have been online social platforms like Wikipedia, Reddit, and Twitter that provide rich and open data about social behavior during disruptive events involving current events, controversies, and collective attention. I draw on theories from organizational studies and computer-mediated communication and use quantitative methods from network science, text analysis, and machine learning to make and interpret empirical claims. Learn more about my research and personal projects and our lab.

My research has been published in top venues like ACM Computer Supported Cooperative Work and Social Computing (CSCW) and Computer-Human Interaction (CHI), AAAI International Conference on Web and Social Media (ICWSM), and PLoS ONE and won Best Paper and Honorable Mention recognition. My research and writing have also been mentioned or featured by publications including The Atlantic, The New Republic, Slate, Fast Company, and FiveThirtyEight. This research into behavioral disruptions around software patches, genealogical relationships in online communities, user migrations has been funded by the National Science Foundation. I have also collaborated with Steep Hill Labs, Leafly, and Colvin Run Networks.

Before joining CU Boulder, I was a research associate and data scientist at the Harvard Business School Online initiative (2014–2016) and a post-doctoral research fellow with Professor David Lazer at Northeastern University (2012–2014). I received my Ph.D. in Media, Technology, and Society from Northwestern University’s School of Communication in 2012 where I was co-advised by Professors Noshir Contractor and Darren Gergle. I received S.B. degrees in Mechanical Engineering and Science, Technology, and Society from the Massachusetts Institute of Technology in 2006. I was born in southern Oregon and grew up in Henderson, Nevada, a suburb of Las Vegas. I am married and have two sons.

Note: I am not accepting Ph.D. students for Fall 2025 admission. However, my colleagues Evan Peck, Jonathan Zong, and Maria Antoniak are recruiting.

The least bad way to contact me is by email or on Mastodon or Bluesky.news

Dec 2024 I wrote a op-ed in the Daily Camera on the popularity of progressive politics in Boulder.

Oct 2024 I wrote a op-ed in Boulder Weekly endorsing a Yes vote on Boulder’s Question 2C.

Aug 2024 I wrote a guest editorial in The Daily Camera responding to proposals for population control in Colorado.

Selected Publications

Title	Venue	Date	Links
"This Place Does What It Was Built For": Designing Digital Institutions for Participatory Change	Proceedings of ACM Human-Computer Interaction	Nov 2019	PDF | DOI
The Pushshift Reddit Dataset	Proceedings of the International AAAI Conference on Web and Social Media	May 2020	PDF | HTML
An encyclopedia with breaking news	N/A	May 2020	PDF | HTML
The Phytochemical Diversity of Commercial Cannabis in the United States	PLOS ONE	May 2022	PDF | DOI
Community Archetypes: An Empirical Framework for Guiding Research Methodologies to Reflect User Experiences of Sense of Virtual Community	N/A	Nov 2024	PDF | DOI

Email is the least bad channel for contacting me.