Crowds, bluetooth, and rock'n'roll: understanding music festival participant behavior. - Jakob Eg Larsen; Piotr Sapiezynski; Arkadiusz Stopczynski; Morten Mørup; Rasmus Theodorsen (PDM@ACM Multimedia, 2013)

Measuring personalization of web search. - Aniko Hannak; Piotr Sapiezynski; Arash Molavi Kakhki; Balachander Krishnamurthy; David Lazer; Alan Mislove; Christo Wilson (WWW, 2013)

Measuring large-scale social networks with high resolution. WORKING PAPER. - Arkadiusz Stopczynski; Vedran Sekara; Piotr Sapiezynski; Andrea Cuttone; Jakob Eg Larsen; Sune Lehmann (CoRR, 2014)

Opportunities and Challenges in Crowdsourced Wardriving. - Piotr Sapiezynski; Radu Gatej; Alan Mislove; Sune Lehmann (Internet Measurement Conference, 2015)

Tracking Human Mobility using WiFi signals. - Piotr Sapiezynski; Arkadiusz Stopczynski; Radu Gatej; Sune Lehmann (CoRR, 2015)

Temporal Fidelity in Dynamic Social Networks. - Arkadiusz Stopczynski; Piotr Sapiezynski; Alex Pentland; Sune Lehmann (CoRR, 2015)

Evidence for a Conserved Quantity in Human Mobility. - Laura Alessandretti; Piotr Sapiezynski; Sune Lehmann; Andrea Baronchelli (CoRR, 2016)

Measuring Personalization of Web Search. - Anikó Hannák; Piotr Sapiezynski; Arash Molavi Khaki; David Lazer; Alan Mislove; Christo Wilson (CoRR, 2017)

Evidence of Complex Contagion of Information in Social Media: An Experiment Using Twitter Bots. - Bjarke Mønsted; Piotr Sapiezynski; Emilio Ferrara; Sune Lehmann (CoRR, 2017)

The Role of Gender in Social Network Organization. - Ioanna Psylla; Piotr Sapiezynski; Enys Mones; Sune Lehmann (CoRR, 2017)

Inferring Person-to-person Proximity Using WiFi Signals. - Piotr Sapiezynski; Arkadiusz Stopczynski; David Kofoed Wind; Jure Leskovec; Sune Lehmann (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

Quantifying Surveillance in the Networked Age: Node-based Intrusions and Group Privacy. - Laura Radaelli; Piotr Sapiezynski; Florimond Houssiau; Erez Shmueli; Yves-Alexandre de Montjoye (CoRR, 2018)

Offline Behaviors of Online Friends. - Piotr Sapiezynski; Arkadiusz Stopczynski; David Kofoed Wind; Jure Leskovec; Sune Lehmann (CoRR, 2018)

Academic performance and behavioral patterns. - Valentin Kassarnig; Enys Mones; Andreas Bjerre-Nielsen; Piotr Sapiezynski; David Dreyer Lassen; Sune Lehmann (EPJ Data Sci., 2018)

Quantifying the Impact of User Attentionon Fair Group Representation in Ranked Lists. - Piotr Sapiezynski; Wesley Zeng; Ronald E. Robertson; Alan Mislove; Christo Wilson (WWW (Companion Volume), 2019)

Auditing Offline Data Brokers via Facebook's Advertising Platform. - Giridhari Venkatadri; Piotr Sapiezynski; Elissa M. Redmiles; Alan Mislove; Oana Goga; Michelle L. Mazurek; Krishna P. Gummadi (WWW, 2019)

Quantifying the Impact of User Attention on Fair Group Representation in Ranked Lists. - Piotr Sapiezynski; Wesley Zeng; Ronald E. Robertson; Alan Mislove; Christo Wilson (CoRR, 2019)

Discrimination through optimization: How Facebook's ad delivery can lead to skewed outcomes. - Muhammad Ali 014; Piotr Sapiezynski; Miranda Bogen; Aleksandra Korolova; Alan Mislove; Aaron Rieke (CoRR, 2019)

Algorithms that "Don't See Color": Comparing Biases in Lookalike and Special Ad Audiences. - Piotr Sapiezynski; Avijit Ghosh; Levi Kaplan; Alan Mislove; Aaron Rieke (CoRR, 2019)

Discrimination through Optimization: How Facebook's Ad Delivery Can Lead to Biased Outcomes. - Muhammad Ali 014; Piotr Sapiezynski; Miranda Bogen; Aleksandra Korolova; Alan Mislove; Aaron Rieke (Proc. ACM Hum. Comput. Interact., 2019)

Investigating sources of PII used in Facebook's targeted advertising. - Giridhari Venkatadri; Elena Lucherini; Piotr Sapiezynski; Alan Mislove (Proc. Priv. Enhancing Technol., 2019)

The Fallibility of Contact-Tracing Apps. - Piotr Sapiezynski; Johanna Pruessing; Vedran Sekara (CoRR, 2020)

Evolution of Digital Advertising Strategies during the 2020 US Presidential Primary. - NaLette Brodnax; Piotr Sapiezynski (CoRR, 2020)

Ad Delivery Algorithms: The Hidden Arbiters of Political Messaging. - Muhammad Ali 014; Piotr Sapiezynski; Aleksandra Korolova; Alan Mislove; Aaron Rieke (WSDM, 2021)

Algorithms that "Don't See Color": Measuring Biases in Lookalike and Special Ad Audiences. - Piotr Sapiezynski; Avijit Ghosh; Levi Kaplan; Aaron Rieke; Alan Mislove (AIES, 2022)

Measurement and analysis of implied identity in ad delivery optimization. - Levi Kaplan; Nicole Gerzon; Alan Mislove; Piotr Sapiezynski (IMC, 2022)

Problematic Advertising and its Disparate Exposure on Facebook. - Muhammad Ali 014; Angelica Goetzen; Alan Mislove; Elissa M. Redmiles; Piotr Sapiezynski (USENIX Security Symposium, 2023)

Detrimental network effects in privacy: A graph-theoretic model for node-based intrusions. - Florimond Houssiau; Piotr Sapiezynski; Laura Radaelli; Erez Shmueli; Yves-Alexandre de Montjoye (Patterns, 2023)

Fairness in Online Ad Delivery. - Joachim Baumann 002; Piotr Sapiezynski; Christoph Heitz; Aniko Hannak (FAccT, 2024)

Comprehensively Auditing the TikTok Mobile App. - Levi Kaplan; Piotr Sapiezynski (WWW (Companion Volume), 2024)

Data Deserts and Black Boxes: The Impact of Socio-Economic Status on Consumer Profiling. - Nico Neumann; Catherine E. Tucker; Levi Kaplan; Alan Mislove; Piotr Sapiezynski (Manag. Sci., 2024)

On the Use of Proxies in Political Ad Targeting. - Piotr Sapiezynski; Levi Kaplan; Alan Mislove; Aleksandra Korolova (Proc. ACM Hum. Comput. Interact., 2024)