手法を比較

	ロバスト・コンジョイント分析	頑健正準相関分析（Robust CCA）
分野	統計学	統計学
系統	Latent structure	Latent structure
提唱年	1990s–2000s	2003
提唱者	Adaptations developed by robust statistics researchers building on Green and Srinivasan's conjoint framework	Croux & Dehon (building on Hotelling's CCA framework)
種類	Preference decomposition / stated preference	Robust multivariate association
原典	Croux, C., Filzmoser, P., & Oliveira, M. R. (2007). Algorithms for Projection-Pursuit Robust Principal Component Analysis. Chemometrics and Intelligent Laboratory Systems, 87(2), 218–225.	Croux, C. & Dehon, C. (2003). Robust estimation of the canonical correlations. Computational Statistics, 18(3), 555–569.
別名	robust CA, outlier-resistant conjoint analysis, robust stated preference analysis	Robust CCA, RCCA, robust CCA, outlier-resistant canonical correlation
関連	4	4
概要	Robust conjoint analysis decomposes respondent preferences for multi-attribute products or services into part-worth utilities while guarding against the distorting influence of outlying ratings or unusual respondents. It adapts classical conjoint estimation with robust regression or robust aggregation techniques so that conclusions about attribute importance remain trustworthy even when a minority of evaluations deviate markedly from the majority.	Robust canonical correlation analysis extends classical CCA by replacing the standard sample covariance matrix with a robust estimator — such as the Minimum Covariance Determinant (MCD) or S-estimator — so that outlying observations do not distort the estimated canonical correlations and canonical variates between two sets of variables.