2 papers
stat.ME2026
Robust Estimation of Polychoric Correlation for Complex Survey Designs Using Minimum Divergence Methods
Siqi Wei, David Kepplinger, Anand N. Vidyashankar
Standard maximum likelihood estimation of polychoric correlations is highly sensitive to contamination in survey data, including response errors, interviewer effects, and careless…
stat.CO2024
Stable and Robust Hyper-Parameter Selection Via Robust Information Sharing Cross-Validation
David Kepplinger, Siqi Wei
Robust estimators for linear regression require non-convex objective functions to shield against adverse affects of outliers. This non-convexity brings challenges, particularly whe…