手法を比較

	動的変分推論	変分推論
分野	ベイズ	ベイズ
系統	Bayesian methods	Bayesian methods
提唱年	2014–2015	1999
提唱者	Bayer, Osendorfer, Krishnan and colleagues	Jordan, Ghahramani, Jaakkola & Saul
種類	Bayesian approximate inference	Approximate Bayesian inference
原典	Krishnan, R. G., Shalit, U., & Sontag, D. (2015). Deep Kalman Filters. NIPS 2015 Workshop on Advances in Approximate Bayesian Inference.	Jordan, M. I., Ghahramani, Z., Jaakkola, T. S., & Saul, L. K. (1999). An introduction to variational methods for graphical models. Machine Learning, 37(2), 183–233.
別名	sequential variational inference, temporal variational inference, variational inference for state-space models, DVI	VI, variational Bayes, VB, mean-field variational inference
関連	6	4
概要	Dynamic variational inference extends the variational inference framework to sequential and time-series settings by positing a structured approximate posterior that respects the temporal ordering of latent states. It jointly learns a generative model of how hidden states evolve over time and a recognition network that maps observed sequences back to those latent states, optimising a sequential evidence lower bound (ELBO).	Variational inference (VI) is a family of techniques that turn Bayesian posterior computation into an optimisation problem. Instead of drawing samples from the exact posterior — as Markov chain Monte Carlo does — VI posits a simpler, tractable family of distributions and finds the member of that family closest to the true posterior by maximising the evidence lower bound (ELBO). Introduced in its modern graphical-model form by Jordan, Ghahramani, Jaakkola and Saul (1999) and given a comprehensive statistical treatment by Blei, Kucukelbir and McAuliffe (2017), VI is now the standard scalable inference engine in probabilistic machine learning.