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	動的ベイジアンネットワーク	ベイジアンネットワーク
分野	ベイズ	ベイズ
系統	Bayesian methods	Bayesian methods
提唱年	1989	1988
提唱者	Thomas Dean & Keiji Kanazawa	Judea Pearl
種類	probabilistic graphical model for sequences	Probabilistic graphical model
原典	Dean, T. & Kanazawa, K. (1989). A model for reasoning about persistence and causation. Computational Intelligence, 5(3), 142–150.	Pearl, J. (1988). Probabilistic Reasoning in Intelligent Systems: Networks of Plausible Inference. Morgan Kaufmann. ISBN: 978-1558604797
別名	DBN, temporal Bayesian network, dynamic probabilistic graphical model, two-slice temporal Bayesian network	Bayes network, belief network, probabilistic graphical model, directed graphical model
関連	5	4
概要	A Dynamic Bayesian Network (DBN) extends a standard Bayesian network over time by representing how a set of random variables evolve across discrete time steps. It captures both the conditional independence structure among variables at each instant and the probabilistic dependencies between consecutive time slices, enabling principled reasoning about temporal processes under uncertainty.	A Bayesian network is a probabilistic graphical model, introduced by Judea Pearl in 1988, that encodes a set of variables and their conditional dependencies as a directed acyclic graph (DAG). Each node represents a variable; each directed edge encodes a direct probabilistic influence. By combining Bayes' rule with the graph's conditional independence structure, the model supports reasoning under uncertainty — computing the probability of any variable given observed evidence about others.