arXiv Machine Learning

Recursive Entropic Variational Inference for Nonlinear State-Space Models

arXiv:2511. 15409v2 Announce Type: replace Abstract: We present a class of algorithms for state estimation in nonlinear, non-Gaussian state-space models.

arXiv Machine Learning
Jul 1

Dynamic Gaussian Processes and the Vanilla-SPDE Exchange

arXiv:2606. 31063v1 Announce Type: cross Abstract: Gaussian process inference is often limited by cubic computational costs, a challenge that becomes more pronounced in spatio-temporal settings where posterior inference is required over dense grids.

By Rui-Yang Zhang, Lachlan Astfalck, Edward Cripps, David Leslie, Henry Moss
arXiv Machine Learning
Jul 21

Online learning of neural state-space models

arXiv:2607. 17614v1 Announce Type: cross Abstract: Recent advances in deep-learning-based nonlinear system identification have led to encoder-based estimation of neural state-space (ANN-SS) models that achieve state-of-the-art performance in offline settings by estimating initial model states from past input-output data.

By Bendeg\'uz Gy\"or\"ok, Tam\'as P\'eni, Maarten Schoukens, Roland T\'oth
arXiv Machine Learning
Jun 9

Conditional Normalizing Flows for Forward and Backward Joint State and Parameter Estimation

arXiv:2601. 07013v2 Announce Type: replace-cross Abstract: Traditional filtering algorithms for state estimation -- such as classical Kalman filtering, unscented Kalman filtering, and particle filters -- show performance degradation when applied to nonlinear systems whose uncertainty follows arbitrary non-Gaussian, and potentially multi-modal distributions.

By Luke S. Lagunowich, Guoxiang Grayson Tong, Daniele E. Schiavazzi
arXiv AI
Jul 22

Incomplete Observations Boost Evolutionary Performance in Ocean Modeling

arXiv:2607. 19147v1 Announce Type: cross Abstract: Data-driven methods have revolutionized ocean modeling, yet current approaches rely heavily on complete reanalysis datasets, imposing computational constraints and limiting model performance to that of the training data.

By Yangyang Kong, Yutong Jiang, Yanhai Gan, Junyu Dong, Feng Gao, Xiaopei Lin
arXiv Machine Learning
Jul 2

Nonlinear Bayesian Estimator for Parameter Learning: A Fixed-Point Characterization

arXiv:2606. 10111v2 Announce Type: replace Abstract: This paper presents a nonlinear parameter estimator for Wiener-type state-space models obtained as a fixed-point architecture that couples two affine minimum mean-squared error (MMSE) estimators: one for the unknown parameters and one for latent variables.

By Sasan Vakili, Dani\"el Woonings, Pradyumna Paruchuri, Peyman Mohajerin Esfahani