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Stefan Georg Sosnowski

3 accepted papers

2025

Koopman-Equivariant Gaussian Processes

AISTATS 2025poster

We propose a family of Gaussian processes (GP) for dynamical systems with linear time-invariant responses, which are nonlinear only in initial conditions. This linearity allows us to tractably quantify forecasting and representational uncertainty, simultaneously alleviating the challenge of computin…

Cited by 0Source ↗Scholar ↗
2024

Jacta: A Versatile Planner for Learning Dexterous and Whole-body Manipulation

CoRL 2024poster

Robotic manipulation is challenging due to discontinuous dynamics, as well as high-dimensional state and action spaces. Data-driven approaches that succeed in manipulation tasks require large amounts of data and expert demonstrations, typically from humans. Existing planners are restricted to specif…

Cited by 2Source ↗code ↗Scholar ↗
2023

Koopman Kernel Regression

NeurIPS 2023poster

Many machine learning approaches for decision making, such as reinforcement learning, rely on simulators or predictive models to forecast the time-evolution of quantities of interest, e.g., the state of an agent or the reward of a policy. Forecasts of such complex phenomena are commonly described by…