Dr. Johannes B. Gruber

About

Johannes B. Gruber is a Senior Researcher and Team Lead of the Metadata Standards and Interoperability team at GESIS. During his research visit at the Weizenbaum Institute, he will collaborate with Daniel Thiele and Christina Viehmann on a systematic literature review of computational methods for measuring opinions in text. The project analyzes 3,710 studies published between 2018 and 2023 to identify research gaps and opportunities for more valid and reliable opinion measurement across diverse languages and contexts.

Gruber's research focuses on digital political communication using computational text and image analysis methods. Before joining GESIS, he was a postdoctoral researcher at VU Amsterdam, the University of Amsterdam, and the European New School of Digital Studies. In his doctoral thesis, completed at the University of Glasgow in 2021, he examined the portrayal of protests in UK mainstream media since the early 1990s, employing an innovative approach combining manual coding with supervised machine learning.

Gruber is an active advocate for Open Science and contributes to the development of open-source research software, particularly for the statistical programming language R. His work bridges political science questions with innovative computational methods and contributes to advancing digital research infrastructures in the social sciences.

Research Group: Dynamics of Digital Mobilisation (15.-19.12.2025)