Social Media und Microtargeting in Deutschland. - Orestis Papakyriakopoulos; Morteza Shahrezaye; Andree Thieltges; Juan Carlos Medina Serrano; Simon Hegelich (Inform. Spektrum, 2017)

A Democracy Called Facebook? Participation as a Privacy Strategy on Social Media. - Severin Engelmann; Jens Grossklags; Orestis Papakyriakopoulos (APF, 2018)

Effects of Social Bots in the Iran-Debate on Twitter. - Andree Thieltges; Orestis Papakyriakopoulos; Juan Carlos Medina Serrano; Simon Hegelich (CoRR, 2018)

Social media and microtargeting: Political data processing and the consequences for Germany. - Orestis Papakyriakopoulos; Simon Hegelich; Morteza Shahrezaye; Juan Carlos Medina Serrano (Big Data Soc., 2018)

Estimating the Political Orientation of Twitter Users in Homophilic Networks. - Morteza Shahrezaye; Orestis Papakyriakopoulos; Juan Carlos Medina Serrano; Simon Hegelich (AAAI Spring Symposium: Interpretable AI for Well-being, 2019)

Distorting Political Communication: The Effect Of Hyperactive Users In Online Social Networks. - Orestis Papakyriakopoulos; Morteza Shahrezaye; Juan Carlos Medina Serrano; Simon Hegelich (INFOCOM Workshops, 2019)

The Rise of Germany's AfD: A Social Media Analysis. - Juan Carlos Medina Serrano; Morteza Shahrezaye; Orestis Papakyriakopoulos; Simon Hegelich (SMSociety, 2019)

Measuring the Ease of Communication in Bipartite Social Endorsement Networks: A Proxy to Study the Dynamics of Political Polarization. - Morteza Shahrezaye; Orestis Papakyriakopoulos; Juan Carlos Medina Serrano; Simon Hegelich (SMSociety, 2019)

Bias in word embeddings. - Orestis Papakyriakopoulos; Simon Hegelich; Juan Carlos Medina Serrano; Fabienne Marco (FAT*, 2020)

The Political Dashboard: A Tool for Online Political Transparency. - Juan Carlos Medina Serrano; Orestis Papakyriakopoulos; Morteza Shahrezaye; Simon Hegelich (ICWSM, 2020)

Exploring Political Ad Libraries for Online Advertising Transparency: Lessons from Germany and the 2019 European Elections. - Juan Carlos Medina Serrano; Orestis Papakyriakopoulos; Simon Hegelich (SMSociety, 2020)

Dancing to the Partisan Beat: A First Analysis of Political Communication on TikTok. - Juan Carlos Medina Serrano; Orestis Papakyriakopoulos; Simon Hegelich (WebSci, 2020)

Political communication on social media: A tale of hyperactive users and bias in recommender systems. - Orestis Papakyriakopoulos; Juan Carlos Medina Serrano; Simon Hegelich (Online Soc. Networks Media, 2020)

The Media During the Rise of Trump: Identity Politics, Immigration, "Mexican" Demonization and Hate-Crime. - Orestis Papakyriakopoulos; Ethan Zuckerman (ICWSM, 2021)

Beyond Algorithmic Bias: A Socio-Computational Interrogation of the Google Search by Image Algorithm. - Orestis Papakyriakopoulos; Arwa Michelle Mboya (CoRR, 2021)

Qualitative Analysis for Human Centered AI. - Orestis Papakyriakopoulos; Elizabeth Anne Watkins; Amy A. Winecoff; Klaudia Jazwinska; Tithi Chattopadhyay (CoRR, 2021)

How Algorithms Shape the Distribution of Political Advertising: Case Studies of Facebook, Google, and TikTok. - Orestis Papakyriakopoulos; Christelle Tessono; Arvind Narayanan; Mihir Kshirsagar (AIES, 2022)

AI-Competent Individuals and Laypeople Tend to Oppose Facial Analysis AI. - Chiara Ullstein; Severin Engelmann; Orestis Papakyriakopoulos; Michel Hohendanner; Jens Grossklags (EAAMO, 2022)

What People Think AI Should Infer From Faces. - Severin Engelmann; Chiara Ullstein; Orestis Papakyriakopoulos; Jens Grossklags (FAccT, 2022)

The Impact of Twitter Labels on Misinformation Spread and User Engagement: Lessons from Trump's Election Tweets. - Orestis Papakyriakopoulos; Ellen P. Goodmann (WWW, 2022)

Political machines: a framework for studying politics in social machines. - Orestis Papakyriakopoulos (AI Soc., 2022)

Partisan US News Media Representations of Syrian Refugees. - Keyu Chen; Marzieh Babaeianjelodar; Yiwen Shi; Kamila Janmohamed; Rupak Sarkar; Ingmar Weber; Thomas Davidson; Munmun De Choudhury; Jonathan Huang; Shweta Yadav 001; Ashiqur R. KhudaBukhsh; Preslav Ivanov Nakov; et al. (CoRR, 2022)

Upvotes? Downvotes? No Votes? Understanding the relationship between reaction mechanisms and political discourse on Reddit. - Orestis Papakyriakopoulos; Severin Engelmann; Amy A. Winecoff (CHI, 2023)

A Reflection on How Cross-Cultural Perspectives on the Ethics of Facial Analysis AI Can Inform EU Policymaking. - Chiara Ullstein; Severin Engelmann; Orestis Papakyriakopoulos; Jens Grossklags (EWAF, 2023)

Augmented Datasheets for Speech Datasets and Ethical Decision-Making. - Orestis Papakyriakopoulos; Anna Seo Gyeong Choi; William Thong; Dora Zhao; Jerone Theodore Alexander Andrews; Rebecca Bourke; Alice Xiang; Allison Koenecke (FAccT, 2023)

Partisan US News Media Representations of Syrian Refugees. - Keyu Chen; Marzieh Babaeianjelodar; Yiwen Shi; Kamila Janmohamed; Rupak Sarkar; Ingmar Weber; Thomas Davidson; Munmun De Choudhury; Jonathan Huang; Shweta Yadav 001; Ashiqur R. KhudaBukhsh; Chris T. Bauch; et al. (ICWSM, 2023)

Ethical Considerations for Responsible Data Curation. - Jerone Theodore Alexander Andrews; Dora Zhao; William Thong; Apostolos Modas; Orestis Papakyriakopoulos; Alice Xiang (NeurIPS, 2023)

Considerations for Ethical Speech Recognition Datasets. - Orestis Papakyriakopoulos; Alice Xiang (WSDM, 2023)

Ethical Considerations for Collecting Human-Centric Image Datasets. - Jerone T. A. Andrews; Dora Zhao; William Thong; Apostolos Modas; Orestis Papakyriakopoulos; Shruti Nagpal; Alice Xiang (CoRR, 2023)

Resampled Datasets Are Not Enough: Mitigating Societal Bias Beyond Single Attributes. - Yusuke Hirota; Jerone Theodore Alexander Andrews; Dora Zhao; Orestis Papakyriakopoulos; Apostolos Modas; Yuta Nakashima; Alice Xiang (EMNLP, 2024)

Not My Voice! A Taxonomy of Ethical and Safety Harms of Speech Generators. - Wiebke Hutiri; Orestis Papakyriakopoulos; Alice Xiang (FAccT, 2024)

Attitudes Toward Facial Analysis AI: A Cross-National Study Comparing Argentina, Kenya, Japan, and the USA. - Chiara Ullstein; Severin Engelmann; Orestis Papakyriakopoulos; Yuko Ikkatai; Naira Paola Arnez-Jordan; Rose Caleno; Brian Mboya; Shuichiro Higuma; Tilman Hartwig; Hiromi M. Yokoyama; Jens Grossklags (FAccT, 2024)

Position: Measure Dataset Diversity, Don't Just Claim It. - Dora Zhao; Jerone T. A. Andrews; Orestis Papakyriakopoulos; Alice Xiang (ICML, 2024)

Using Voice Data to Facilitate Depression Risk Assessment in Primary Health Care. - Abhay Goyal; Roger Ho Chun Man; Roy Ka-Wei Lee; Koustuv Saha; Frederick L. Altice; Christian Poellabauer; Orestis Papakyriakopoulos; Lam Yin Cheung; Munmun De Choudhury; Kanica Allagh; Navin Kumar 004 (WebSci (Companion), 2024)

Mapping the Landscape of Independent Food Delivery Platforms in the United States. - Yuhan Liu; Amna Liaqat; Owen Xingjian Zhang; Mariana Consuelo Fernández Espinosa; Ankhitha Manjunatha; Alexander Yang; Orestis Papakyriakopoulos; Andrés Monroy-Hernández (Proc. ACM Hum. Comput. Interact., 2024)

Safety Devolution in AI Agents. - Cheng Yu; Benedikt Stroebl; Diyi Yang; Orestis Papakyriakopoulos (CoRR, 2025)