Arbeitsbereich: Computer Science

Prof. Dr. Stefan Dietze is Professor of Data & Knowledge Engineering at Heinrich Heine University Düsseldorf and Scientific Director of the department Knowledge Technologies for the Social Sciences at GESIS (Leibniz Institute for the Social Sciences) in Cologne.

His research is concerned with mining and interpretation of large amounts of heterogeneous data, in particular from the Web, using methods at the intersection of natural language processing, machine learning, and information retrieval. Being head of the Knowledge Technologies for the Social Sciences department at GESIS, a particular focus is on the use of (social) web data for interdisciplinary research questions in the social sciences. At DIID, he is interested in the investigation of online discourse using NLP-based methods, e.g., for the recognition and classification of statements or sources or the understanding of information diffusion in social networks.

Björn Ebbinghaus has studied Computer Science at the Heinrich-Heine-University Düsseldorf since 2013. He completed his Bachelor of Science degree in 2017. At the same time, he was already working on D-BAS, the dialog-based argumentation system, a project of the first phase of the Research Training Group, as a student assistant. During his master studies at the HHU, he focused on the use of argumentation systems in natural language environments, such as chat systems, by chatbots.

In his master thesis he investigated the possibilities of extending existing argumentation systems with a subsequent decision making process. For this purpose, an experiment was conducted with the student body of computer science to test whether this kind of decision making is perceived as fair and acceptable by the students. Since January 2019 he is employed as a research assistant at the Chair of Computer Networks of Prof. Martin Mauve, where he is researching the practical application and development of systems for decision making.

Prof. Dr. Jörg Rothe is head of the working group for complexity theory and cryptology at Heinrich Heine University Duesseldorf since 2000. Since 2014 he is chair of the Department of Computer Science.

His research interests are in computational social choice, algorithmic game theory, and fair division, typically focusing on the algorithmic and complexity-theoretic properties of the related problems. At DIID, he is interested in formal models of theoretical computer science for the description and evaluation of user interactions in online participation processes.

Jun.-Prof. Dr. Dorothea Baumeister is a junior professor for computational social choice at Heinrich-Heine-University in Düsseldorf. Since 2017 she leads the DFG-project “Distances in Voting”.

In her research she concentrates on the axiomatic and computa tionalan  alysis of problems from the field of preference aggregation, votingsystems, and fair division. At the DIID her focus lies on the mathematical formalization of processes in online participation and theinfluence of distances in online voting.