Implicit variational inference
Variational inference without densities
2024-05-10 — 2024-10-20
Wherein implicit variational inference is presented, models whose likelihoods are intractable are employed and KL-based losses are recovered via adversarial-style density-ratio estimation.
Variational inference using generative models whose density cannot be evaluated. See Variational Inference using Implicit Models.
Even though it does not evaluate likelihoods, implicit VI still seems to use KL divergence as a loss function.
There seems to be a connection to adversarial learning too.
1 Connection to adversarial training
Related concepts, perhaps? Variational interpretation of adversarial losses:
2 Semi-implicit variational inference
Not sure yet. I should check out Conor Hassan’s implementation.
See (Cheng et al. 2024; Lim and Johansen 2024; Moens et al. 2021; Molchanov et al. 2019; Yu et al. 2024; Yu and Zhang 2023).