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

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)