Unbiased Methods for Multi-Goal Reinforcement Learning

no code implementations • 16 Jun 2021 • Léonard Blier, Yann Ollivier

We introduce unbiased deep Q-learning and actor-critic algorithms that can handle such infinitely sparse rewards, and test them in toy environments.

Multi-Goal Reinforcement Learning Q-Learning +1

Learning Successor States and Goal-Dependent Values: A Mathematical Viewpoint

no code implementations • 18 Jan 2021 • Léonard Blier, Corentin Tallec, Yann Ollivier

In reinforcement learning, temporal difference-based algorithms can be sample-inefficient: for instance, with sparse rewards, no learning occurs until a reward is observed.

Making Deep Q-learning methods robust to time discretization

1 code implementation • 28 Jan 2019 • Corentin Tallec, Léonard Blier, Yann Ollivier

Despite remarkable successes, Deep Reinforcement Learning (DRL) is not robust to hyperparameterization, implementation details, or small environment changes (Henderson et al. 2017, Zhang et al. 2018).

Q-Learning reinforcement-learning

Learning with Random Learning Rates

1 code implementation • 2 Oct 2018 • Léonard Blier, Pierre Wolinski, Yann Ollivier

Hyperparameter tuning is a bothersome step in the training of deep learning models.

Learning with Random Learning Rates.

no code implementations • 27 Sep 2018 • Léonard Blier, Pierre Wolinski, Yann Ollivier

Hyperparameter tuning is a bothersome step in the training of deep learning mod- els.

The Description Length of Deep Learning Models

no code implementations • NeurIPS 2018 • Léonard Blier, Yann Ollivier

This might explain the relatively poor practical performance of variational methods in deep learning.