Otsuma Women's University · Faculty of Data Science · 教授

Research keywordsWishart distribution・covariance matrix estimation・population eigenvalues・orthogonally invariant estimators・multivariate normal inference・Stein loss・alpha-divergence risk・sample size asymptotics

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• Estimation of a multivariate normal covariance matrix under a certain structure
• An asymptotic expansion of Wishart distribution when the population eigenvalues are infinitely dispersed
• Order-preserving estimators and an inequality on the integration of zonal polynomial
• 研究論文（学術雑誌） Convergence of estimative density: criterion for model complexity and sample size

• 人口動態データの多変量解析
• 多変量分布が作るリーマン空間の幾何学的考察
• 標本数問題に関する情報幾何学的アプローチ 基盤研究(C)
• 統計的決定理論に基づく多変量推定量の開発

• Official profile