手法を比較

	能動学習決定木	アクティブラーニング
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	1984–2010	2009
提唱者	Settles, B. (active learning framework); Breiman et al. (decision tree base)	Burr Settles
種類	Active learning with decision tree base learner	Interactive supervised learning framework
原典	Settles, B. (2010). Active Learning Literature Survey. Computer Sciences Technical Report 1648, University of Wisconsin-Madison.	Settles, B. (2009). Active learning literature survey. University of Wisconsin-Madison Computer Sciences Technical Report 1648.
別名	AL-DT, active decision tree, query-based decision tree learning, uncertainty-sampling decision tree	Query Learning, Optimal Experimental Design (ML context), Pool-Based Active Learning, Aktif Öğrenme
関連	5	2
概要	Active learning with a decision tree combines the interpretable structure of a CART-style tree with a query strategy that selects the most informative unlabeled instances for human annotation. The model iteratively requests labels only for examples it is most uncertain about, minimising labeling cost while maximising classification accuracy on tabular data.	Active learning is an iterative machine-learning paradigm in which a learning algorithm selectively queries an oracle — typically a human annotator — for labels on the most informative unlabeled examples. Formalized by Burr Settles in his seminal 2009 literature survey, active learning addresses the practical bottleneck of annotation cost by achieving high model accuracy with far fewer labeled examples than passive supervised learning requires.