I'm a quantitative user experience researcher at Google, working on YouTube Ads. I received a PhD from the University of Illinois at Urbana-Champaign. My research helps support algorithmic transparency, privacy protections, and user trust as technology becomes ever more present in daily life. I was advised by Prof. Yang Wang.

I enjoy building things. I've built for the web, mobile, and VR. During my PhD, I did research internships at Facebook, Airbnb, and Figure Eight (f.k.a. CrowdFlower). I used to compete in web development competitions and once co-organized a civic hackathon. I enjoy running, traveling, sci-fi movies and books, and (almost) all kinds of games.

My published works are novel systems, frameworks, and models around topics of user privacy, data ethics, trust, and accessibility. My work has been published at CHI, WWW, UbiComp, SOUPS, and PETS.

1. Who Am I? A Design Probe Exploring Real-Time Transparency about Online and Offline User Profiling Underlying Targeted Ads [pdf]
   N.M. Barbosa, G. Wang, B. Ur, Y. Wang | IMWUT 2021 (UbiComp)


2. WebAlly: Making Visual Task-based CAPTCHAs Transferable for People with Visual Impairments [pdf]
   Z. Zhang, Z. Zhang, H. Yuan, N.M. Barbosa, S. Das, Y. Wang | SOUPS 2021 [26% acceptance rate]


3. Do Privacy and Security Matter to Everyone? Quantifying and Clustering User-Centric Considerations About Smart Home Device Adoption [pdf]
   N.M. Barbosa, Z. Zhang, Y. Wang | SOUPS 2020 [20% acceptance rate]


4. Designing for Trust: A Behavioral Framework for Sharing Economy Platforms [pdf]
   N.M. Barbosa, E. Sun, J. Antin, P. Parigi | WWW 2020 [19% acceptance rate]


5. "What if?" Predicting Individual Users’ Smart Home Privacy Preferences and Their Changes [pdf]
   N.M. Barbosa, J. Park, Y. Yao, Y. Wang | PETS 2019 [18% acceptance rate]


6. Rehumanized Crowdsourcing: A Labeling Framework Addressing Bias and Ethics in Machine Learning [pdf]
   N.M. Barbosa, M. Chen | CHI 2019 [24% acceptance rate]


7. UniPass: Design and Evaluation of a Smart Device-Based Password Manager for Visually Impaired Users [pdf]
   N.M. Barbosa, J. Hayes, Y. Wang | UbiComp 2016 [23% acceptance rate]


8. CAN: Composable Accessibility Infrastructure via Data-Driven Crowdsourcing [pdf]
   Y. Huang, B. Dobreski, B.B. Deo, J. Xin, N.M. Barbosa, Y. Wang, J.P. Bigham | W4A 2015 [35% acceptance rate]


9. Strategies: An Inclusive Authentication Framework [pdf]
   N.M. Barbosa | ASSETS 2014 [Silver Medal - Undergraduate Student Research Competition]

Patents and patent applications have been created for some of the things I built in graduate school and internships:

1. Intent-oriented browsing [application]
   N.M. Barbosa, Y. Wang


2. Framework for adjusting contributor profile in collecting data labels [application]
   N.M. Barbosa, M. Chen, J. Prendki


3. Website authentication using an internet-connected device [granted]
   N.M. Barbosa, Y. Wang