Search Results for author: Arthur Flajolet

Found 10 papers, 4 papers with code

PASTA: Pretrained Action-State Transformer Agents

no code implementations20 Jul 2023 Raphael Boige, Yannis Flet-Berliac, Arthur Flajolet, Guillaume Richard, Thomas Pierrot

Self-supervised learning has brought about a revolutionary paradigm shift in various computing domains, including NLP, vision, and biology.

Language Modelling Masked Language Modeling +3

Evolving Populations of Diverse RL Agents with MAP-Elites

1 code implementation9 Mar 2023 Thomas Pierrot, Arthur Flajolet

Quality Diversity (QD) has emerged as a powerful alternative optimization paradigm that aims at generating large and diverse collections of solutions, notably with its flagship algorithm MAP-ELITES (ME) which evolves solutions through mutations and crossovers.

Reinforcement Learning (RL)

Assessing Quality-Diversity Neuro-Evolution Algorithms Performance in Hard Exploration Problems

no code implementations24 Nov 2022 Felix Chalumeau, Thomas Pierrot, Valentin Macé, Arthur Flajolet, Karim Beguir, Antoine Cully, Nicolas Perrin-Gilbert

Exploration is at the heart of several domains trying to solve control problems such as Reinforcement Learning and QD methods are promising candidates to overcome the challenges associated.

Evolutionary Algorithms

Neuroevolution is a Competitive Alternative to Reinforcement Learning for Skill Discovery

1 code implementation6 Oct 2022 Felix Chalumeau, Raphael Boige, Bryan Lim, Valentin Macé, Maxime Allard, Arthur Flajolet, Antoine Cully, Thomas Pierrot

Recent work has shown that training a mixture of policies, as opposed to a single one, that are driven to explore different regions of the state-action space can address this shortcoming by generating a diverse set of behaviors, referred to as skills, that can be collectively used to great effect in adaptation tasks or for hierarchical planning.

reinforcement-learning Reinforcement Learning (RL)

Fast Population-Based Reinforcement Learning on a Single Machine

no code implementations17 Jun 2022 Arthur Flajolet, Claire Bizon Monroc, Karim Beguir, Thomas Pierrot

Training populations of agents has demonstrated great promise in Reinforcement Learning for stabilizing training, improving exploration and asymptotic performance, and generating a diverse set of solutions.

reinforcement-learning Reinforcement Learning (RL)

Diversity Policy Gradient for Sample Efficient Quality-Diversity Optimization

1 code implementation NeurIPS 2021 Thomas Pierrot, Valentin Macé, Félix Chalumeau, Arthur Flajolet, Geoffrey Cideron, Karim Beguir, Antoine Cully, Olivier Sigaud, Nicolas Perrin-Gilbert

This paper proposes a novel algorithm, QDPG, which combines the strength of Policy Gradient algorithms and Quality Diversity approaches to produce a collection of diverse and high-performing neural policies in continuous control environments.

Continuous Control Evolutionary Algorithms

Online Learning with a Hint

no code implementations NeurIPS 2017 Ofer Dekel, Arthur Flajolet, Nika Haghtalab, Patrick Jaillet

We show that the player can benefit from such a hint if the set of feasible actions is sufficiently round.

Real-Time Bidding with Side Information

no code implementations NeurIPS 2017 Arthur Flajolet, Patrick Jaillet

We consider the problem of repeated bidding in online advertising auctions when some side information (e. g. browser cookies) is available ahead of submitting a bid in the form of a $d$-dimensional vector.

No-Regret Learnability for Piecewise Linear Losses

no code implementations20 Nov 2014 Arthur Flajolet, Patrick Jaillet

In the convex optimization approach to online regret minimization, many methods have been developed to guarantee a $O(\sqrt{T})$ bound on regret for subdifferentiable convex loss functions with bounded subgradients, by using a reduction to linear loss functions.

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