Publications

Academic

DIY Assistant: A Multi-Modal End-User Programmable Virtual Assistant

(PLDI 2021)

Michael H. Fischer, Giovanni Campagna, Euirim Choi, Monica S. Lam

Bankruptcy Map: A System for Searching and Analyzing U.S. Bankruptcy Cases at Scale

(C+J 2020)

Euirim Choi, Gillian Brassil, Katie Keller, Jessica Ouyang, Kate Wang

Oh, the Places You've Been! User Reactions to Longitudinal Transparency About Third-Party Web Tracking and Inferencing

(CCS 2019)

Ben Weinshel, Miranda Wei, Mainack Mondal, Euirim Choi, Shawn Shan, Claire Dolin, Michelle L. Mazurek, Blase Ur

Unpacking Perceptions of Data-Driven Inferences Underlying Online Targeting and Personalization

(CHI 2018)

Claire Dolin, Ben Weinshel, Shawn Shan, Chang Min Hahn, Euirim Choi, Michelle L. Mazurek, Blase Ur

Journalism

Facebook Offers Money to Reel In TikTok Creators

Facebook Offers Money to Reel In TikTok Creators

(The Wall Street Journal)

The day before an antitrust congressional hearing that featured executives at Facebook, Apple, and Amazon, I broke the news that Instagram secretly offered financial incentives to TikTok users with millions of followers to persuade them to use Instagram Reels, their competing service.

The exclusive story was featured on the front page of The Wall Street Journal in print and online above the fold. It was also aggregated by many national news outlets.

UChicago Allegedly Favored Donors’ Children for Internship Funding As Students in Need Were Turned Away

UChicago Allegedly Favored Donors’ Children for Internship Funding As Students in Need Were Turned Away

(The Chicago Maroon)

Leaked emails allegedly show that University administrators favored donors' children for internship funding even as students in need were turned away in order to strengthen ties between UChicago and its donors.

My co-author and I were invited on WBEZ to discuss our reporting. The story was also featured on Axios, which called it "outstanding."

Chinese Coal, No Revenue, One Employee: Inside UChicago Trustee’s “$1.7 Billion” Firm

Chinese Coal, No Revenue, One Employee: Inside UChicago Trustee’s “$1.7 Billion” Firm

(The Chicago Maroon)

Documents reveal that UChicago trustee Steve Stevanovich is late on over $12 million in pledges to the University, and that by overselling his aviation company he may have committed securities fraud.

Notes: Our investigation was profiled by Felix Salmon from Axios, who called it “fantastic.” Our article was cited in federal bankruptcy court.

The almost 5,000-word investigative piece required reading over 1,000 pages of documents. I also coded a special site to host the article and designed the featured graphic.

Pearsons, Who Pledged $100 Million to UChicago, Want Their Money Back

Pearsons, Who Pledged $100 Million to UChicago, Want Their Money Back

(The Chicago Maroon)

Sensitive documents obtained by The Maroon last summer and a new lawsuit reveal a strained relationship between the University of Chicago and the Pearson family, calling the future of the Pearson Institute, which was supposed to change the world, into question.

Notes: I broke this story, catching Chicago media outlets by surprise, possibly because the lawsuit was filed in a district court in Oklahoma—not in Illinois. The article was cited on Page A2 of The Wall Street Journal. The Chicago Sun-Times and the Chicago Tribune ran their own reporting on the story on their respective front pages.

I was later subpoenaed by the Pearson family for documents used to produce this article; the subpoena made national headlines and was even covered in the national POLITICO Playbook.

The article is the most-read Maroon article in the past two years. The Illinois Collegiate Press Association said that this was 2018’s best news story in Illinois at the university level. The article won in the large school (4,000+ students) non-dailies category.

Steve Bannon Accepts Invitation to Speak at the University of Chicago

Steve Bannon Accepts Invitation to Speak at the University of Chicago

(The Chicago Maroon)

Booth professor Luigi Zingales, who is interested in populism, confirmed to The Maroon that Bannon accepted his invitation.

Note: I waited for two hours outside Professor Zingales’ office to confirm a tip that we received. We then published a story before every outlet, which would later be confirmed by the Chicago Sun-Times and the Chicago Tribune. The Washington Post wrote about the invitation as well.

University Hospital Patient Information Was Potentially Vulnerable to Hackers

University Hospital Patient Information Was Potentially Vulnerable to Hackers

(The Chicago Maroon)

A Maroon investigation found that weaknesses in the University’s network could have allowed hackers to steal sensitive information from networked printers, as well as access and, in some cases, control cameras and other connected devices.

Notes: The Illinois Collegiate Press Association said that this was 2017’s best news story in Illinois at the university level. The article won in the large school (4,000+ students) non-dailies category.

An Inside Look at the University’s Budget

An Inside Look at the University’s Budget

(The Chicago Maroon)

Private administration documents shed light on strategic budget deficits and deliberations on how to control spending.

Notes: This article was part of a series that was deemed by the Illinois Collegiate Press Association as being 2017’s best in-depth reporting series at the university level. The series won in the large school (4,000+ students) non-dailies category.