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Philippe Wenk

6 accepted papers

2022

Adaptive Gaussian Process Change Point Detection

ICML 2022spotlight

Detecting change points in time series, i.e., points in time at which some observed process suddenly changes, is a fundamental task that arises in many real-world applications, with consequences for safety and reliability. In this work, we propose ADAGA, a novel Gaussian process-based solution to th…

Cited by 15SourcePDFScholar
2021

Distributional Gradient Matching for Learning Uncertain Neural Dynamics Models

NeurIPS 2021poster

Differential equations in general and neural ODEs in particular are an essential technique in continuous-time system identification. While many deterministic learning algorithms have been designed based on numerical integration via the adjoint method, many downstream tasks such as active learning, e…

2021

Learning Stable Deep Dynamics Models for Partially Observed or Delayed Dynamical Systems

NeurIPS 2021poster

Learning how complex dynamical systems evolve over time is a key challenge in system identification. For safety critical systems, it is often crucial that the learned model is guaranteed to converge to some equilibrium point. To this end, neural ODEs regularized with neural Lyapunov functions are a…

2020

A Real-Robot Dataset for Assessing Transferability of Learned Dynamics Models

ICRA 2020poster

In the context of model-based reinforcement learning and control, a large number of methods for learning system dynamics have been proposed in recent years. The purpose of these learned models is to synthesize new control policies. An important open question is how robust current dynamics-learning m…

Cited by 10SourceScholar
2019

AReS and MaRS Adversarial and MMD-Minimizing Regression for SDEs

ICML 2019oral

Stochastic differential equations are an important modeling class in many disciplines. Consequently, there exist many methods relying on various discretization and numerical integration schemes. In this paper, we propose a novel, probabilistic model for estimating the drift and diffusion given noisy…

2019

Fast Gaussian process based gradient matching for parameter identification in systems of nonlinear ODEs

AISTATS 2019poster

Parameter identification and comparison of dynamical systems is a challenging task in many fields. Bayesian approaches based on Gaussian process regression over time-series data have been successfully applied to infer the parameters of a dynamical system without explicitly solving it. While the bene…