Leonard Hasenclever

Evaluating model-based planning and planner amortization for continuous control

2021 · arXiv (Cornell University)

There is a widespread intuition that model-based control methods should be able to surpass the data efficiency of model-free approaches. In this paper we attempt to evaluate this intuition on various challenging locomotion tasks. We …

Distributed Bayesian Learning with Stochastic Natural-gradient\n Expectation Propagation and the Posterior Server

2015 · arXiv (Cornell University)

This paper makes two contributions to Bayesian machine learning algorithms.\nFirstly, we propose stochastic natural gradient expectation propagation (SNEP),\na novel alternative to expectation propagation (EP), a popular variational\ninference algorithm. SNEP is a black box variational algorithm, …