I am a research scientist at the Wikimedia Foundation. See my Meta Page for links to current projects. My research interests bounce around but primarily revolve around how societal inequalities are preserved in online platforms like Wikipedia or Yelp. I seek to better understand how different design decisions in the algorithms underlying these platforms might change who can benefit from them. I often approach this through geography. I completed my PhD work with Brent Hecht while at GroupLens Research at the University of Minnesota and People, Space, & Algorithms (PSA) Research Group at Northwestern University.
Johnson, I., Lemmerich, F., Sáez-Trumper, D., West, R., Strohmaier, M. and Zia, L. Global gender differences in Wikipedia readership. AAAI International Conference on Web and Social Media 2021.
Preprint PDF | Meta
Johnson, I., Gerlach, M., Sáez-Trumper, D. Language-agnostic Topic Classification for Wikipedia. WikiWorkshop 2021: In Companion Proceedings of The Web Conference 2021 (WWW '21)..
Preprint PDF | Meta | Code | Data
Vincent, N., Johnson, I., Sheehan, P. and Hecht, B. Measuring the Importance of User-Generated Content to Search Engines. AAAI International Conference on Web and Social Media 2019.
Wiki Workshop 2019
Xie, X., Johnson, I., Gomez, A. Detecting and Gauging Impact on Wikipedia Page Views. WikiWorkshop 2019: In Companion Proceedings of The Web Conference 2019 (WWW '19).
The Professional Geographer
Shmool, J.L.C., Johnson, I., Dodson, Z.M., Keene, R., Gradeck, R., Beach, S.R., and Clougherty, J.E. Developing a GIS-Based Online Survey Instrument to Elicit Perceived Neighborhood Geographies to Address the Uncertain Geographic Context Problem. The Professional Geographer 2018. Volume 70, Issue 3, Pages 423-433.
Link to Paper
Diaz, M., Johnson, I., Lazar, A., Piper, A.M., and Gergle, D. Understanding Age-Related Bias in Sentiment Analysis. ACM Conference on Human Factors in Computing Systems 2018.
Preprint PDF | Best Paper Award
Vincent, N., Johnson, I., and Hecht, B. Examining Wikipedia with a Broader Lens: Quantifying the Value of Wikipedia's Relationships with Other Large-Scale Online Communities. ACM Conference on Human Factors in Computing Systems 2018.
Preprint PDF | Code and Data | Best Paper Award
Kariryaa, A., Johnson, I., Schöning, J., and Hecht, B. Defining and Predicting the Localness of Volunteered Geographic Information using Ground Truth Data. ACM Conference on Human Factors in Computing Systems 2018.
CHI 2018 LBW
Kaur, H., Johnson, I., Miller, H.J., Terveen, L.G., Lampe, C., Hecht, B., Lasecki, W.S. Oh The Places You'll Share: An Affordances-Based Moodel of Social Media Posting Behaviors. ACM Conference on Human Factors in Computing Systems 2018.
CSCW 2018 (PACM HCI)
Klein, M., Zhao, J., Ni, J., Johnson, I., Hill, B.M., and Zhu, H. Quality Standards, Service Orientation, and Power in Airbnb and Couchsurfing. Proceedings of the ACM on Human-Computer Interaction (PACM HCI / CSCW '18 Online First). Vol. 1, No. 1, Article 58.
UbiComp 2017 (PACM IMWUT)
Johnson, I., Henderson, J., Perry, C., Schöning, J., and Hecht, B. Beautiful...but at What Cost? An Examination of Externalities in Geographic Vehicle Routing. Proceedings of the ACM on Interactive, Mobile, Wearable, and Ubiquitous Technologies (PACM IMWUT / UbiComp '17). Vol. 1, No. 2, Article 15.
Preprint PDF | Code | Ubicomp '17 Slides
McMahon, C.*, Johnson, I.*, and Hecht, B. The Substantial Interdependence of Wikipedia and Google - A Case Study on the Relationship between Peer Production Communities and Intelligent Technologies. AAAI International Conference on Web and Social Media 2017.
Paper PDF | Chrome Extension | ICWSM '17 Slides | Best Paper Nomination | *Co-first-authors
Johnson, I., McMahon, C., Schöning, J., and Hecht, B. The Effect of Population and "Structural" Biases on Social Media-based Algorithms -- A Case Study in Geolocation Inference Across the Urban-Rural Spectrum. ACM Conference on Human Factors in Computing Systems 2017.
Paper PDF | CHI '17 Slides
Johnson, I., Schwanda Sosik, V., and Ballard, K. Stranger Searching in a Strange Land: The Impact of Familiarity on Local Search. ACM Conference on Human Factors in Computing Systems 2017. Short Paper.
Miller, H., Thebault-Spieker, J., Chang, S., Johnson, I., Terveen, L., and Hecht, B. "Blissfully happy" or "ready to fight": Varying Interpretations of Emoji. AAAI International Conference on Web and Social Media 2016.
Paper PDF | Blog Post
Johnson, I., Sengupta, S., Schöning, J., and Hecht, B. The Geography and Importance of Localness in Geotagged Social Media. ACM Conference on Human Factors in Computing Systems 2016.
Paper PDF | CHI '16 Slides | Code | Blogpost
Johnson, I., Lin, Y., Li, T., Hall, A., Halfaker, A., Schöning, J., and Hecht, B. Not at Home on the Range: Peer Production and the Urban/Rural Divide. ACM Conference on Human Factors in Computing Systems 2016.
Paper PDF | CHI '16 Slides | Maps | Blogpost | Presentation
Sen, S., Johnson, I., Harper, R., Mai, H., Olsen, S., Mathers, B., Vonessen, L., Wright, M., and Hecht, B. Towards Domain-Specific SR: A Case Study from Geography. International Joint Conference on Artificial Intelligence 2015.
Johnson, I. Identifying and Addressing Structural Inequalities in the Representativeness of Geographic Technologies.
Johnson, I. and Hecht, B. Inferred Profiles: Examining How People Understand and Control What Algorithms Infer about Them. ACM Conference on Computer-Supported Cooperative Work and Social Computing 2017 Workshop on Networked Privacy.
AAAI Spring Symposium 2016
Johnson, I. and Hecht, B. Structural Causes of Bias in Crowd-derived Geographic Information: Towards a Holistic Understanding. AAAI 2016 Spring Symposium on Observational Studies through Social Media and Other Human-Generated Content.
Paper PDF | OSSM '16 Slides