A Note on Estimating the Improvement in Stein-Type Estimators.
Abstract
In estimating the mean of a multivariate normal distribution under squared error loss, the maximum likelihood estimation may be uniformly improved upon. For a dominating estimator, how may we estimate the improvement? Results from Efron and Morris enable a unique unbiased estimator of the improvement for orthogonally invariant estimators. However, this estimator needn't be admissible. We develop, for the James-Stein estimator, alternative improvement estimators. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 10, 1986
- Accession Number
- ADA167033
Entities
People
- Alan E. Gelfand
Organizations
- Stanford University