Piotr Sapiezynski

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Sune LehmannProfessor, DTU Compute, Technical University of Denmark and Center for Social Data ScienceVerified email at dtu.dk
Alan MisloveProfessor of Computer Science, Northeastern UniversityVerified email at ccs.neu.edu
Arkadiusz StopczynskiWaymoVerified email at waymo.com
David Dreyer LassenProvost for Research & Innovation + Econ Professor, U. of Copenhagen; Center for Social Data ScienceVerified email at econ.ku.dk
Christo WilsonProfessor, Northeastern UniversityVerified email at ccs.neu.edu
vedran sekaraAssociate Professor at the IT University of CopenhagenVerified email at itu.dk
Aniko HannakAssistant Professor, University of ZürichVerified email at ifi.uzh.ch
Aleksandra KorolovaAssistant Professor of Computer Science and Public Affairs, Princeton UniversityVerified email at princeton.edu
Arash Molavi KakhkiThousandEyesVerified email at thousandeyes.com
Enys MonesCodeScene, Technical University of DenmarkVerified email at codescene.com
Jakob Eg LarsenAssociate Professor, Cognitive Systems, DTU Compute, Technical University of DenmarkVerified email at dtu.dk
Andrea BaronchelliProfessor of Complexity Science, City University of LondonVerified email at city.ac.uk
Laura AlessandrettiTechnical University of DenmarkVerified email at dtu.dk
Andreas Bjerre-NielsenAssociate Professor of Economics and Social Data Science, University of CopenhagenVerified email at econ.ku.dk
David LazerUniversity Distinguished Professor, Northeastern University; & Visiting Scholar, Harvard UniversityVerified email at neu.edu
David Kofoed WindPhD at DTU Compute, Technical University of DenmarkVerified email at dtu.dk
Miranda BogenCenter for Democracy & TechnologyVerified email at cdt.org
Andrea CuttoneTechnical University of DanmarkVerified email at dtu.dk
Valentin KassarnigCTO @ SoSha | Doctoral Researcher @ Graz University of TechnologyVerified email at ist.tugraz.at
Emilio FerraraProfessor of Computer Science at the University of Southern CaliforniaVerified email at usc.edu

Piotr Sapiezynski

Other namesPiotr Sapieżyński

Associate Research Scientist, Northeastern University

Verified email at northeastern.edu - Homepage

algorithm auditing privacy fairness computational social science social networks


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Measuring personalization of web search A Hannak, P Sapiezynski, A Molavi Kakhki, B Krishnamurthy, D Lazer, ... Proceedings of the 22nd international conference on World Wide Web, 527-538, 2013	610	2013
Discrimination through Optimization: How Facebook's Ad Delivery Can Lead to Biased Outcomes M Ali, P Sapiezynski, M Bogen, A Korolova, A Mislove, A Rieke Proceedings of the ACM on Human-Computer Interaction 3 (CSCW), 199, 2019	487	2019
Measuring large-scale social networks with high resolution A Stopczynski, V Sekara, P Sapiezynski, A Cuttone, MM Madsen, ... PloS one 9 (4), e95978, 2014	470	2014
Evidence of Complex Contagion of Information in Social Media: An Experiment Using Twitter Bots B Mønsted, P Sapieżyński, E Ferrara, S Lehmann PLOS ONE 12 (9), 1-12, 2017	334	2017
Evidence for a conserved quantity in human mobility L Alessandretti, P Sapiezynski, V Sekara, S Lehmann, A Baronchelli Nature Human Behaviour 2 (7), 485--491, 2018	211	2018
Tracking Human Mobility using WiFi signals P Sapiezynski, A Stopczynski, R Gatej, S Lehmann PLoS ONE 10 (7), e0130824, 2015	196	2015
Interaction Data from the Copenhagen Networks Study P Sapiezynski, A Stopczynski, DD Lassen, S Lehmann Scientific Data 6 (1), 1-10, 2019	189	2019
Academic performance and behavioral patterns V Kassarnig, E Mones, A Bjerre-Nielsen, P Sapiezynski, D Dreyer Lassen, ... EPJ Data Science 7, 1-16, 2018	144	2018
Quantifying the Impact of User Attention on Fair Group Representation in Ranked Lists P Sapiezynski, W Zeng, RE Robertson, A Mislove, C Wilson Companion Proceedings of The 2019 World Wide Web Conference, 553--562, 2019	116	2019
Multi-scale spatio-temporal analysis of human mobility L Alessandretti, P Sapiezynski, S Lehmann, A Baronchelli PLOS ONE 12 (2), 1-17, 2017	98	2017
Inferring Person-to-person Proximity Using WiFi Signals P Sapiezynski, A Stopczynski, DK Wind, J Leskovec, S Lehmann Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 1 (2), 24:1-24:20, 2017	93	2017
Ad Delivery Algorithms: The Hidden Arbiters of Political Messaging M Ali, P Sapiezynski, A Korolova, A Mislove, A Rieke Proceedings of the 14th ACM International Conference on Web Search and Data …, 2021	83	2021
Investigating sources of PII used in Facebook’s targeted advertising G Venkatadri, E Lucherini, P Sapiezynski, A Mislove Proceedings on Privacy Enhancing Technologies 1, 18, 2018	63	2018
The Role of Gender in Social Network Organization I Psylla, P Sapiezynski, E Mones, S Lehmann PLOS ONE 12 (12), 1-21, 2017	54	2017
Auditing offline data brokers via facebook's advertising platform G Venkatadri, P Sapiezynski, EM Redmiles, A Mislove, O Goga, ... The World Wide Web Conference, 1920-1930, 2019	48	2019
Algorithms that “Don’t See Color”: Measuring Biases in Lookalike and Special Ad Audiences P Sapiezynski, A Ghosh, L Kaplan, A Mislove, A Rieke Proceedings of the 2022 AAAI/ACM Conference on AI, Ethics, and Society, 609-616, 2022	42	2022
Academic performance prediction in a gender-imbalanced environment P Sapiezynski, V Kassarnig, C Wilson, S Lehmann, A Mislove FATREC Workshop on Responsible Recommendation at RecSys 2017, 2017	41	2017
Opportunities and Challenges in Crowdsourced Wardriving P Sapiezynski, R Gatej, A Mislove, S Lehmann Proceedings of the 2015 ACM Conference on Internet Measurement Conference …, 2015	40	2015
Crowds, Bluetooth, and Rock'n'Roll. Understanding Music Festival Participant Behavior JE Larsen, P Sapiezynski, A Stopczynski, M Mørup XXXIII Sunbelt Social Networks Conference of the International Network for …, 2013	38	2013
Wi-Finding: Urban Transportation Sensing Using Crowdsourced Wi-Fi A Bjerre-Nielsen, K Minor, P Sapiezynski, S Lehmann, DD Lassen Pervasive and Mobile Computing, 0	29*

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