Dr. Stefan Müller is an Associate Professor in the School of Politics and International Relations at University College Dublin. His research focuses on political representation, party competition, political communication, public opinion, meta-research, quantitative text analysis, and machine learning. He is committed to open-source software, open research practices, and improving research culture. He is a co-author of the quanteda R package for quantitative text analysis, maintainer of the Irish Polling Indicator, and a regular contributor to national and international media on Irish and European politics.