One postdoc position is available in Computer Science Section, Department of People and Technology, Roskilde University, Denmark. Starting from December 2021 or early 2022, the position will last for a period of 2 years. The recruited postdoc researcher will work on the research project Safeguarding Diversity in News Recommendation funded by VILLUM FONDEN's Villum Synergy programme. News diversity is an important societal foundation for upholding democratic balance and avoiding polarization in the media. It is however being eroded by data, algorithms and artificial intelligence (AI) in the digital era. This project will investigate how the current situation is and how news recommendation models can be redesigned or adjusted to fit different normative goals of news diversity in a Danish context. The research project is interdisciplinary, assembling computer scientists, journalism researchers, and a news organization that will deploy and test the project's research outcomes in its real setting. For the postodoc position, we look for someone with sufficient knowledge and research experience in recommendation, machine learning and/or NLP. The position will be affiliated to the Programming, Logic and Intelligent Systems (PLIS) research group (http://plis.ruc.dk) at Roskilde University. Qualifications You must hold a PhD degree within computer science or a closely related discipline. Qualifications within at least one of the following scientific areas are required: * Recommendation models and algorithms (experience in news recommendation is a plus) * Machine learning (e.g., semi-supervised learning, transfer learning, deep models, efficient model training) * Information extraction from multimedia and NLP (knowing Danish is not necessary but a plus) The following technical qualifications are also emphasized: * Strong programming skills in at least one of Java, C/C++, C# and Python * Software development and system implementation (practical product experience is a plus) You are required to be proactive, self-motivated, good at communication (both oral and written English), and cooperative in interdisciplinary collaboration. If you're interested in this postdoc position, please send your detailed CV (including a full list of publications) to Professor Hua Lu (email@example.com, https://luhua.ruc.dk).