Understanding the Impact of Confidence in Retrieval Augmented Generation: A Case Study in the Medical Domain. - Shintaro Ozaki; Yuta Kato; Siyuan Feng; Masayo Tomita; Kazuki Hayashi; Ryoma Obara; Masafumi Oyamada; Katsuhiko Hayashi 001; Hidetaka Kamigaito; Taro Watanabe (CoRR, 2024)