Christoph Carl Kling

Learn More
Nowadays, large collections of photos are tagged with GPS coordinates. The modelling of such large geo-tagged corpora is an important problem in data mining and information retrieval, and involves the use of geographical information to detect topics with a spatial component. In this paper, we propose a novel geographical topic model which captures(More)
In recent years, political parties have adopted Online Delegative Democracy platforms such as LiquidFeedback to organise themselves and their political agendas via a grassroots approach. A common objection against the use of these platforms is the delegation system, where a user can delegate his vote to another user, giving rise to so-called super-voters,(More)
Online Social Networks (OSNs) provide a venue for virtual interactions and relationships between individuals. In some communities, OSNs also facilitate arranging offline meetings and relationships. FetLife, the worlds largest anonymous social network for the BDSM, fetish and kink communities, provides a unique example of an OSN that serves as an interaction(More)
This thesis presents novel approaches for integrating context information into probabilistic models. Data from social media is typically associated with metadata, which includes context information such as timestamps, geographical coordinates or links to user profiles. Previous studies showed the benefits of using such context information in probabilistic(More)
In this tutorial, we teach the intuition and the assumptions behind topic models. Topic models explain the co-occurrences of words in documents by extracting sets of semantically related words, called topics. These topics are semantically coherent and can be interpreted by humans. Starting with the most popular topic model, <i>Latent Dirichlet(More)
Die Erforschung von Vertrauen und Glaubwürdigkeit spielt in den Kommunikationswissenschaften eine bedeutsame Rolle für die Beschreibung, Erklärung und Vorhersage von Mediennutzungsprozessen und -mustern und daraus resultierenden Wirkungen. Im Fokus hinsichtlich der Rezeption von Nachrichten stehen dabei bislang vor allem Nachrichten in Printmedien und(More)
  • 1