手法を比較

	知識追跡	ラッシュモデル
分野	教育アナリティクス	心理測定学
系統	Machine learning	Latent structure
提唱年	1994	1960
提唱者	Albert Corbett & John Anderson	Georg Rasch
種類	Probabilistic student modeling	Item Response Theory / Latent trait model
原典	Corbett, A. T., & Anderson, J. R. (1994). Knowledge tracing: Modeling the acquisition of procedural knowledge. User Modeling and User-Adapted Interaction, 4(4), 253–278.	Rasch, G. (1960). Probabilistic Models for Some Intelligence and Attainment Tests. Danish Institute for Educational Research, Copenhagen.
別名	BKT, Bayesian Knowledge Tracing, Deep Knowledge Tracing, Bilgi İzleme	1PL IRT, one-parameter logistic model, Rasch Modeli — 1PL IRT, 1PL model
関連	3	6
概要	Knowledge Tracing (KT) is a student-modeling technique that estimates, at each moment in time, the probability that a learner has mastered a target knowledge component. Introduced by Corbett and Anderson in 1994, the classical Bayesian Knowledge Tracing (BKT) model treats skill acquisition as a two-state Hidden Markov Model driven by four interpretable parameters: prior knowledge, learning rate, slip, and guess. Deep variants (DKT, DKVMN, AKT) later replaced HMMs with recurrent and transformer architectures.	The Rasch model, introduced by Georg Rasch in 1960, is the simplest member of the Item Response Theory (IRT) family. It assigns a single difficulty parameter to each test item and places both item difficulties and person abilities on the same logit scale, enabling direct, sample-independent comparison of items and persons.