Krzysztof Rybiński is a researcher at Vistula University in Warsaw, and his main focus areas are Big Data, artificial intelligence and machine learning, where he holds Data Science and Natural Language Processing courses. Rybinski received his M.A. degree in Mathematics and Computer Science (1991), and in Economic Sciences (1993), in which later he earned his Ph.D. (1996) as well. In our institution, he was taking part of the Visiting Professorship’s program of the Centre for Social Sciences between the 1st of July 2021 and the 30th September 2021.
As a visiting fellow, Rybinski had been participating in the Sentiment-analysis project of TK MILAB, in which the political sentiment analysis of political content through large news corpora is carried out. He cooperated in creating a Hungarian political sentiment dictionary, and worked on the „A computational politics framework for assessing the IO (de)legitimation. A case study of twelve IOs in six post-socialist countries” research with Orsolya Ring to construct a new model of researching how influential domestic politicians use the media channel to legitimize or delegitimize the twelve analyzed International Organizations. The research is based on a corpus consisting one million articles in 22 newspapers focusing on Russia, Kazakhstan, Belarus, Ukraine, Poland and Hungary. Through the TK MILAB Speakers Series he also held a seminar in the topic of „Media freedom, bias, and manipulation in post-soviet space. A machine learning analysis of one million articles from five countries” on 21 September 2021, 14:00 CET.
Rybinski is a partner in the V4 Media Slant project (funded by Visegrád Fund), led by HUN-REN CSS's Orsolya Ring and a fellow Czech partner in the Improved media and information literacy for increased resilience towards biased reporting, disinformation and propaganda objective of the Democratic Values and Media area. In this project, the researchers aim to analyze the media freedom in the V4 countries with the application of different text mining methods to develop a new model of identifying biases in online news platforms to promote conscious media consumption.

Amnon Cavari is a researcher, associate professor and head of the Institute for Liberty and Responsibility at the Lauder School of Government, Diplomacy and Strategy at Reichman University. Prof. Cavari's main research interests are in the interrelationship between political elites and public opinion in the United States and in Israel.
Cavari is head of the research group American Public Opinion toward Israel (APOI), which tracks trends in American elite and mass opinion toward Israel, and is co-chair of the Israeli Policy Agendas Project. He is the author of American Public Opinion toward Israel (2021) The Party Politics of Presidential Rhetoric (2017), co-editor of two books on presidential elections in the United States (2012 and 2016), and author of several journal articles.  He is currently a Visiting Associate Professor at the University of Michigan, Department of Quantitative Methods in the Social Sciences.
Cavari was a visiting fellow at poltextLAB in the summer of 2022. On June 7th 2022, he held a presentation titled "Survey Nonresponse and Mass Polarization in the United States - What we can (and cannot) infer from survey data today" at the Institute for Political Science.

Nathalie Neptune is a researcher at Institut de Recherche en Informatique de Toulouse (IRIT), her main research areas are artificial intelligence and long language models. She will be taking part of the Visiting Professorship program in April 2023. Neptune will be working in poltextLAB on the hyperparameter tuning of monolingual and bilingual Longformer models as part of the CAP BABEL MACHINE project.

Sean Theriault is a professor at the University of Texas. He holds a Ph.D. in Political Science, (Stanford University, 2001), an M.A. in Political Science (Stanford University, 2000), an M.S. in Public Policy Analysis (University of Rochester, 1996), and a B.A. in Political Science (University of Richmond, 1993). His expertise include the U.S. Congress, the presidency, political parties, elections, and party ploarization. He has published five books: Congress: The First Branch (with Mickey Edwards; Oxford University Press, 2020), The Great Broadening (with Bryan Jones and Michelle Whyman; University of Chicago Press, 2019), The Gingrich Senators (Oxford University Press, 2013), Party Polarization in Congress (Cambridge University Press, 2008), and The Power of the People (Ohio State University Press, 2005). He has also published numerous articles in a variety of journals on subjects ranging from presidential rhetoric to congressional careers and the Louisiana Purchase to the Pendleton Act of 1883.
Theriault is a visiting fellow at poltextLAB in the summer of 2024.