Abstract Summary
Decision-making and opinion-forming are everyday tasks that involve weighing pro and con arguments. The goal of Touch¬_ is to foster the development of support-technologies for decision-making and opinion-forming and to improve our understanding of these processes. This seventh edition of the lab features four shared tasks, of which the first three are new in 2026: (1) Fallacy Detection (new task), in which participants determine whether an argument follows a valid argument pattern or a fallacy; (2) Causality Extraction (new task), in which participants extract pro- and concausal claims from natural language text; (3) Generalizability of Argument Identification in Context (new task), in which participants predict whether or not sentences would be annotated as an argument under different annotation guidelines; and (4) Advertisement in Retrieval-Augmented Generation (2nd edition), in which participants detect and block advertisements in generated text. In this paper, we briefly describe the planned setup for the seventh lab edition at CLEF 2026 and summarize the results of the 2025 edition.
