手法を比較

	正則化サポートベクターマシン	線形判別分析 (LDA)
分野	機械学習	機械学習
系統	Machine learning	Latent structure
提唱年	1995–2004	1936
提唱者	Cortes, C. & Vapnik, V. (soft-margin SVM); Zhu et al. (L1-SVM)	Fisher, R. A.
種類	Regularized discriminative classifier / regressor	Supervised dimensionality reduction and linear classifier
原典	Cortes, C. & Vapnik, V. (1995). Support-vector networks. Machine Learning, 20(3), 273–297.	Fisher, R. A. (1936). The use of multiple measurements in taxonomic problems. Annals of Eugenics, 7(2), 179–188.
別名	Regularized SVM, L1-SVM, L2-SVM, penalized SVM	LDA, Fisher's discriminant analysis, Fisher linear discriminant, normal discriminant analysis
関連	4	4
概要	Regularized Support Vector Machine extends the classic SVM by explicitly controlling the trade-off between margin maximization and training error through an L1 or L2 penalty parameter. The soft-margin formulation introduced by Cortes and Vapnik in 1995 is itself a regularized model, and later L1-SVM variants additionally promote feature sparsity, enabling automatic variable selection in high-dimensional settings.	Linear Discriminant Analysis is a supervised method for dimensionality reduction and classification, introduced by Ronald A. Fisher in 1936, that finds linear combinations of features which maximally separate predefined classes while preserving as much class-discriminatory information as possible. It simultaneously serves as a feature-projection technique and a probabilistic classifier, making it one of the foundational methods in pattern recognition and statistical learning.