Explore a 41-minute conference talk on minimax estimation in Efron's two-groups model, presented by Chao Gao at the "Meeting in Mathematical Statistics" held at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into advanced mathematical concepts and statistical methodologies as Gao discusses this important topic in mathematical statistics. Access this recording and other talks by renowned mathematicians through CIRM's Audiovisual Mathematics Library, which offers features such as chapter markers, keywords, enriched video content with abstracts and bibliographies, and multi-criteria search options for a comprehensive learning experience.