During the 3rd International Workshop on Tabular Data Analysis (TaDA) at #VLDB2025, partners Ahmad Fares, Georgia Troullinou and Sihem Amer-Yahia presented the poster “Optimizing source selection for tuple value discovery”. The work addresses the challenge of finding the best data sources to meet specific user requests, testing offline and reinforcement learning approaches, trained with the @mathe_project dataset, one of the DataGEMS use cases.