Overview of the CLEF-2023 CheckThat! Lab Task 5 on Authority Finding in Twitter

Abstract

We present an overview of Task 5 of the sixth edition of the CheckThat! Lab, which is a part of the 2023 Conference and Labs of the Evaluation Forum (CLEF). In this Authority Finding task, participating systems are required to retrieve a set of authority Twitter accounts for a given rumor expressed in a propagating Arabic tweet. Two teams participated in this first version of the task, submitting a total of four runs, 3 of which managed to achieve significant improvement over the baseline. In this paper, we present our data collection approach, evaluation setup, and an overview of the participating systems. We release to the research community the dataset as well as the evaluation scripts, which should enable further research on this new task.