Proposing Topic Models and Evaluation Frameworks for Analyzing Associations with External Outcomes: An Application to Leadership Analysis Using Large-Scale Corporate Review Data. - Yura Yoshida; Masato Kanai; Masataka Nakayama; Haruki Ohsawa; Yukiko Uchida; Arata Yuminaga; Gakuse Hoshina; Nobuo Sayama (CoRR, 2026)