Beats tuned baseline
2026
Conjugate Bayesian Latent Dynamics Head
Replace the final nonlinear transition network of a latent world model with a linear Koopman-style transition whose coefficients have a Matrix Normal-Inverse Wishart prior. Meta-learn the prior across tasks, then adapt only closed-form sufficient statistics from a few recent transitions; this should be more data-efficient and uncertainty-aware than gradient fine-tuning under distribution shift.
Paper: MetaKoopman: Bayesian Meta-Learning of Koopman Operators for Modeling Structured Dynamics under Distribution Shifts
arXiv:2607.26345