An Analysis of Hyper-Parameter Optimization Methods for Retrieval Augmented Generation. - Matan Orbach; Ohad Eytan; Benjamin Sznajder; Ariel Gera; Odellia Boni; Yoav Kantor; Gal Bloch; Omri Levy; Hadas Abraham; Nitzan Barzilay; Eyal Shnarch; Michael Factor; et al. (CoRR, 2025)