Volume ratio, sparsity, and minimaxity under unitarily invariant norms

Keyphrases

• Additional Term 33%
• Asymptotic Study 33%
• Convex Geometry 33%
• Covariance Matrix 66%
• Estimation Rate 33%
• Finite-dimensional Banach Spaces 33%
• Group Sparsity 33%
• High-dimensional Covariance 33%
• High-dimensional Mean 33%
• Mean Matrix 100%
• Minimax Estimator 66%
• Minimaxity 100%
• Non-asymptotic 33%
• Ratio Approach 33%
• Sparsity 100%
• Sparsity Constraint 33%
• Unitarily Invariant Norm 100%
• Volume Ratio 100%

Mathematics

• Asymptotics 50%
• Banach Space 50%
• Convex Geometry 50%
• Covariance Matrix 100%
• Matrix (Mathematics) 50%
• Minimax Estimation 100%