Wiegand, MichaelKlakow, DietrichJokinen, KristiinaBick, Eckhard2023-09-222023-09-222009ISSN 1736-6305 (Online)https://hdl.handle.net/10062/92755engopenAccessAttribution-NonCommercial-NoDerivs 3.0 Estoniahttp://creativecommons.org/licenses/by-nc-nd/3.0/ee/Predictive Features in Semi-Supervised Learning for Polarity Classification and the Role of AdjectivesArticle