手法を比較

	自己教師あり決定木	ラベル伝播
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2015–present	2002
提唱者	Multiple authors (active research area, 2010s–2020s)	Zhu, X. & Ghahramani, Z.
種類	Self-supervised ensemble/single tree model	Graph-based semi-supervised classification
原典	Self-supervised learning. Wikipedia.	Zhu, X., & Ghahramani, Z. (2002). Learning from labeled and unlabeled data with label propagation. Technical Report CMU-CALD-02-107, Carnegie Mellon University.
別名	SSL decision tree, self-supervised tree classifier, pseudo-label decision tree, unsupervised-guided decision tree	LP, label spreading, graph-based semi-supervised learning, harmonic label propagation
関連	5	3
概要	Self-supervised Decision Tree learning combines the interpretability of classical decision trees with the ability to exploit large quantities of unlabeled data through self-supervised pretext tasks. The model learns useful feature representations or node-split criteria from unlabeled samples before refining predictions on a small labeled set, bridging the gap between fully supervised trees and purely unsupervised clustering.	Label Propagation is a graph-based semi-supervised learning algorithm introduced by Zhu and Ghahramani in 2002 that spreads class labels from a small set of labeled nodes to a large set of unlabeled nodes by iteratively diffusing label information along the edges of a similarity graph, exploiting the manifold structure of the data.