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Florent Altché

8 accepted papers

2023

Curiosity in Hindsight: Intrinsic Exploration in Stochastic Environments

ICML 2023poster

Consider the problem of exploration in sparse-reward or reward-free environments, such as in Montezuma's Revenge. In the *curiosity-driven* paradigm, the agent is rewarded for how much each realized outcome differs from their predicted outcome. But using predictive error as intrinsic motivation is f…

Cited by 14SourcePDFScholar
2022

BYOL-Explore: Exploration by Bootstrapped Prediction

NeurIPS 2022accept

We present BYOL-Explore, a conceptually simple yet general approach for curiosity-driven exploration in visually complex environments. BYOL-Explore learns the world representation, the world dynamics and the exploration policy all-together by optimizing a single prediction loss in the latent space w…

Cited by 76SourcePDFScholar
2022

Emergent Communication at Scale

ICLR 2022spotlight

Emergent communication aims for a better understanding of human language evolution and building more efficient representations. We posit that reaching these goals will require scaling up, in contrast to a significant amount of literature that focuses on setting up small-scale problems to tease out d…

2021

Broaden Your Views for Self-Supervised Video Learning

ICCV 2021poster

Most successful self-supervised learning methods are trained to align the representations of two independent views from the data. State-of-the-art methods in video are inspired by image techniques, where these two views are similarly extracted by cropping and augmenting the resulting crop. However,…

Cited by 151PDFcodeScholar
2020

Bootstrap Latent-Predictive Representations for Multitask Reinforcement Learning

ICML 2020poster

Learning a good representation is an essential component for deep reinforcement learning (RL). Representation learning is especially important in multitask and partially observable settings where building a representation of the unknown environment is crucial to solve the tasks. Here we introduce Pr…

Cited by 173SourcePDFScholar
2020

Bootstrap Your Own Latent - A New Approach to Self-Supervised Learning

NeurIPS 2020oral

We introduce Bootstrap Your Own Latent (BYOL), a new approach to self-supervised image representation learning. BYOL relies on two neural networks, referred to as online and target networks, that interact and learn from each other. From an augmented view of an image, we train the online network to p…

2020

Monte-Carlo Tree Search as Regularized Policy Optimization

ICML 2020poster

The combination of Monte-Carlo tree search (MCTS) with deep reinforcement learning has led to groundbreaking results in artificial intelligence. However, AlphaZero, the current state-of-the-art MCTS algorithm still relies on handcrafted heuristics that are only partially understood. In this paper, w…

Cited by 97SourcePDFScholar