Showing stat.MEShow all
2 papers · 1 filter
stat.ME2026
Hybrid principal component analysis in multivariate allometric regression
Koji Tsukuda, Shun Matsuura
In biological data from allometry studies, the largest eigenvalue is typically dominant, and the gaps between minor eigenvalues are often narrow. Such proximity among small minor e…
stat.ME2026
Robust -Estimation of Scatter Matrices via Precision Structure Shrinkage
Soma Nikai, Yuichi Goto, Koji Tsukuda
Maronna's and Tyler's -estimators are among the most widely used robust estimators for scatter matrices. However, when the dimension of observations is relatively high, their pe…