The Role of Compromised Accounts in Social Media Manipulation

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Probing the Limits of Social Data : Biases, Methods, and Domain Knowledge

Online social data has been hailed to provide unprecedented insights into human phenomena due to its ability to capture human behavior at a scale and level of detail, both in breadth and depth, that is hard to achieve through conventional data collection t ...

EPFL2016

Please Sign to Save... : How Online Environmental Petitions Succeed

Karl Aberer, Philippe Cudré-Mauroux, Julia Proskurnia

Social media have become one of the key platforms to support the debate on climate change. In particular, Twitter allows easy information dissemination when running environmental campaigns. Yet, the dynamics of these campaigns on social platforms still rem ...

AAAI Press2016

Analyzing Large-Scale Public Campaigns on Twitter

Karl Aberer, Philippe Cudré-Mauroux, Julia Proskurnia, Roman Prokofyev

Social media has become an important instrument for running various types of public campaigns and mobilizing people. Yet, the dynamics of public campaigns on social networking platforms still remain largely unexplored. In this paper, we present an in-depth ...

Springer Int Publishing Ag2016

Comparing Events Coverage in Online News and Social Media: The Case of Climate Change

Karl Aberer, Alexandra Olteanu, Carlos Castillo

Social media is becoming more and more integrated in the distribution and consumption of news. How is news in social media different from mainstream news? % This paper presents a comparative analysis covering a span of 17 months and hundreds of news events ...

2015

Mining Crowdsourced First Impressions in Online Social Video

Daniel Gatica-Perez, Joan Isaac Biel Tres

While multimedia and social computing research have used crowdsourcing techniques to annotate objects, actions, and scenes in social video sites like YouTube, little work has ad- dressed the crowdsourcing of personal and social traits in online social vide ...

2014

SpeakUp in the Classroom: Anonymous Temporary Social Media for Better Interactions

Denis Gillet, Adrian Christian Holzer, Andrii Vozniuk, Sten Govaerts

Student participation in class is an important aspect of the learning experience, and can provide valuable feedback for teachers. However, getting students to interact in large classrooms is challenging. This paper presents SpeakUp, a mobile temporary soci ...

2014

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