6 citations · 8 across the 7 of their papers we have counts for
7 papers
Minimaxity under the half-Cauchy prior
Yuzo Maruyama, Takeru Matsuda
This is a follow-up paper of Polson and Scott (2012, Bayesian Analysis), which claimed that the half-Cauchy prior is a sensible default prior for a scale parameter in hierarchical…
A sharper bound of the Hotelling-Solomons inequality
Yuzo Maruyama
The original Hotelling-Solomons inequality indicates that an upper bound of |mean - median|/(standard deviation) is 1. In this note, we find a new bound depending on the sample siz…
Minimaxity under half-Cauchy type priors
Yuzo Maruyama, Takeru Matsuda
This is a follow-up paper of Polson and Scott (2012, Bayesian Analysis), which claimed that the half-Cauchy prior is a sensible default prior for a scale parameter in hierarchical…
Non-minimaxity of debiased shrinkage estimators
Yuzo Maruyama, Akimichi Takemura
We consider the estimation of the -variate normal mean of under the quadratic loss function. We investigate the decision theoretic properties of debiased shrink…
A sharp boundary for SURE-based admissibility for the Normal means problem under unknown scale
Yuzo Maruyama, William E. Strawderman
We consider quasi-admissibility/inadmissibility of Stein-type shrinkage estimators of the mean of a multivariate normal distribution with covariance matrix an unknown multiple of t…
An alternative to Moran's I for spatial autocorrelation
Yuzo Maruyama
Moran's I statistic, a popular measure of spatial autocorrelation, is revisited. The exact range of Moran's I is given as a function of spatial weights matrix. We demonstrate that…