no code implementations • JEP/TALN/RECITAL 2022 • Antoine Chaffin, Vincent Claveau, Ewa Kijak, Sylvain Lamprier, Benjamin Piwowarski, Thomas Scialom, Jacopo Staiano
Nous évaluons leurs avantages et inconvénients, en explorant leur précision respective sur des tâches de classification, ainsi que leur impact sur la génération coopérative et leur coût de calcul, dans le cadre d’une stratégie de décodage état de l’art, basée sur une recherche arborescente de Monte-Carlo (MCTS).
no code implementations • ICLR 2019 • Sylvain Lamprier
Many works have been proposed in the literature to capture the dynamics of diffusion in networks.
no code implementations • 1 Mar 2024 • Lucas Schott, Josephine Delas, Hatem Hajri, Elies Gherbi, Reda Yaich, Nora Boulahia-Cuppens, Frederic Cuppens, Sylvain Lamprier
Deep Reinforcement Learning (DRL) is an approach for training autonomous agents across various complex environments.
no code implementations • 19 Feb 2024 • Raphaël Mouravieff, Benjamin Piwowarski, Sylvain Lamprier
Table Question-Answering involves both understanding the natural language query and grounding it in the context of the input table to extract the relevant information.
no code implementations • 14 Feb 2024 • Jean Pinsolle, Olivier Goudet, Cyrille Enderli, Sylvain Lamprier, Jin-Kao Hao
In this paper, we propose a new deinterleaving method for mixtures of discrete renewal Markov chains.
1 code implementation • 27 Oct 2023 • Vincent Grari, Thibault Laugel, Tatsunori Hashimoto, Sylvain Lamprier, Marcin Detyniecki
In the field of algorithmic fairness, significant attention has been put on group fairness criteria, such as Demographic Parity and Equalized Odds.
no code implementations • 22 Feb 2023 • Pierre-Alexandre Kamienny, Guillaume Lample, Sylvain Lamprier, Marco Virgolin
Symbolic regression (SR) is the problem of learning a symbolic expression from numerical data.
3 code implementations • 6 Feb 2023 • Thomas Carta, Clément Romac, Thomas Wolf, Sylvain Lamprier, Olivier Sigaud, Pierre-Yves Oudeyer
Using an interactive textual environment designed to study higher-level forms of functional grounding, and a set of spatial and navigation tasks, we study several scientific questions: 1) Can LLMs boost sample efficiency for online learning of various RL tasks?
1 code implementation • 20 Jun 2022 • Thomas Carta, Pierre-Yves Oudeyer, Olivier Sigaud, Sylvain Lamprier
Reinforcement learning (RL) in long horizon and sparse reward tasks is notoriously difficult and requires a lot of training steps.
no code implementations • 14 Jun 2022 • Nicolas Castanet, Sylvain Lamprier, Olivier Sigaud
In multi-goal Reinforcement Learning, an agent can share experience between related training tasks, resulting in better generalization for new tasks at test time.
1 code implementation • 25 Apr 2022 • Antoine Chaffin, Thomas Scialom, Sylvain Lamprier, Jacopo Staiano, Benjamin Piwowarski, Ewa Kijak, Vincent Claveau
Language models generate texts by successively predicting probability distributions for next tokens given past ones.
no code implementations • 28 Jan 2022 • Sylvain Lamprier, Thomas Scialom, Antoine Chaffin, Vincent Claveau, Ewa Kijak, Jacopo Staiano, Benjamin Piwowarski
Generative Adversarial Networks (GANs) have known a tremendous success for many continuous generation tasks, especially in the field of image generation.
1 code implementation • ICML Workshop URL 2021 • Pierre-Alexandre Kamienny, Jean Tarbouriech, Sylvain Lamprier, Alessandro Lazaric, Ludovic Denoyer
Learning meaningful behaviors in the absence of reward is a difficult problem in reinforcement learning.
1 code implementation • 10 Sep 2021 • Vincent Grari, Sylvain Lamprier, Marcin Detyniecki
In recent years, most fairness strategies in machine learning models focus on mitigating unwanted biases by assuming that the sensitive information is observed.
no code implementations • NeurIPS 2021 • Thomas Scialom, Paul-Alexis Dray, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano
Due to the discrete nature of words, language GANs require to be optimized from rewards provided by discriminator networks, via reinforcement learning methods.
1 code implementation • 10 Jun 2021 • Jean-Yves Franceschi, Emmanuel de Bézenac, Ibrahim Ayed, Mickaël Chen, Sylvain Lamprier, Patrick Gallinari
We propose a novel theoretical framework of analysis for Generative Adversarial Networks (GANs).
2 code implementations • EMNLP 2021 • Clément Rebuffel, Thomas Scialom, Laure Soulier, Benjamin Piwowarski, Sylvain Lamprier, Jacopo Staiano, Geoffrey Scoutheeten, Patrick Gallinari
QuestEval is a reference-less metric used in text-to-text tasks, that compares the generated summaries directly to the source text, by automatically asking and answering questions.
2 code implementations • 7 Apr 2021 • Lucas Schott, Hatem Hajri, Sylvain Lamprier
Existing approaches of the literature to generate meaningful disturbances of the environment are adversarial reinforcement learning methods.
1 code implementation • EMNLP 2021 • Thomas Scialom, Paul-Alexis Dray, Patrick Gallinari, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano, Alex Wang
Summarization evaluation remains an open research problem: current metrics such as ROUGE are known to be limited and to correlate poorly with human judgments.
3 code implementations • 24 Nov 2020 • Manon Césaire, Lucas Schott, Hatem Hajri, Sylvain Lamprier, Patrick Gallinari
This paper introduces stochastic sparse adversarial attacks (SSAA), standing as simple, fast and purely noise-based targeted and untargeted attacks of neural network classifiers (NNC).
1 code implementation • 7 Sep 2020 • Vincent Grari, Oualid El Hajouji, Sylvain Lamprier, Marcin Detyniecki
We leverage recent work which has been done to estimate this coefficient by learning deep neural network transformations and use it as a minmax game to penalize the intrinsic bias in a multi dimensional latent representation.
1 code implementation • 30 Aug 2020 • Vincent Grari, Sylvain Lamprier, Marcin Detyniecki
In recent years, fairness has become an important topic in the machine learning research community.
1 code implementation • ICLR 2021 • Jérémie Donà, Jean-Yves Franceschi, Sylvain Lamprier, Patrick Gallinari
A recent line of work in the machine learning community addresses the problem of predicting high-dimensional spatiotemporal phenomena by leveraging specific tools from the differential equations theory.
no code implementations • NeurIPS 2020 • Thomas Scialom, Paul-Alexis Dray, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano
Training regimes based on Maximum Likelihood Estimation (MLE) suffer from known limitations, often leading to poorly generated text sequences.
no code implementations • EMNLP 2020 • Thomas Scialom, Paul-Alexis Dray, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano
We present MLSUM, the first large-scale MultiLingual SUMmarization dataset.
1 code implementation • ICML 2020 • Thomas Scialom, Paul-Alexis Dray, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano
We introduce a novel approach for sequence decoding, Discriminative Adversarial Search (DAS), which has the desirable properties of alleviating the effects of exposure bias without requiring external metrics.
1 code implementation • ICML 2020 • Jean-Yves Franceschi, Edouard Delasalles, Mickaël Chen, Sylvain Lamprier, Patrick Gallinari
Designing video prediction models that account for the inherent uncertainty of the future is challenging.
Ranked #1 on Video Prediction on Cityscapes 128x128 (Pred metric)
1 code implementation • 13 Nov 2019 • Vincent Grari, Boris Ruf, Sylvain Lamprier, Marcin Detyniecki
The approach incorporates at each iteration the gradient of the neural network directly in the gradient tree boosting.
1 code implementation • 12 Nov 2019 • Vincent Grari, Boris Ruf, Sylvain Lamprier, Marcin Detyniecki
Second, by minimizing the HGR directly with an adversarial neural network architecture.
1 code implementation • 11 Sep 2019 • Edouard Delasalles, Sylvain Lamprier, Ludovic Denoyer
By conditioning language models with author and temporal vector states, we are able to leverage the latent dependencies between the text contexts.
2 code implementations • IJCNLP 2019 • Thomas Scialom, Sylvain Lamprier, Benjamin Piwowarski, Jacopo Staiano
Abstractive summarization approaches based on Reinforcement Learning (RL) have recently been proposed to overcome classical likelihood maximization.
no code implementations • 28 Dec 2018 • Sylvain Lamprier
Many works have been proposed in the literature to capture the dynamics of diffusion in networks.
no code implementations • 6 Oct 2015 • Benjamin Piwowarski, Sylvain Lamprier, Nicolas Despres
Although they present good abilities to cope with both term dependencies and vocabulary mismatch problems, thanks to the distributed representation of words they are based upon, such models could not be used readily in IR, where the estimation of one language model per document (or query) is required.
no code implementations • 20 Dec 2013 • Cédric Lagnier, Simon Bourigault, Sylvain Lamprier, Ludovic Denoyer, Patrick Gallinari
We introduce a model for predicting the diffusion of content information on social media.