The UKPConvArg2 Corpus is introduced in the following paper:
Habernal, I., & Gurevych, I. (2016). What makes a convincing argument? Empirical analysis and detecting attributes of convincingness in Web argumentation. In Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing (pp. 1214–1223). Austin, Texas: Association for Computational Linguistics.