Search Results for author: Julien Pettré

Found 8 papers, 2 papers with code

Human Motion Prediction under Unexpected Perturbation

no code implementations23 Mar 2024 Jiangbei Yue, Baiyi Li, Julien Pettré, Armin Seyfried, He Wang

We investigate a new task in human motion prediction, which is predicting motions under unexpected physical perturbation potentially involving multiple people.

Human motion prediction motion prediction

Reward Function Design for Crowd Simulation via Reinforcement Learning

no code implementations22 Sep 2023 Ariel Kwiatkowski, Vicky Kalogeiton, Julien Pettré, Marie-Paule Cani

Crowd simulation is important for video-games design, since it enables to populate virtual worlds with autonomous avatars that navigate in a human-like manner.

Navigate reinforcement-learning

UGAE: A Novel Approach to Non-exponential Discounting

no code implementations11 Feb 2023 Ariel Kwiatkowski, Vicky Kalogeiton, Julien Pettré, Marie-Paule Cani

We also show experimentally that agents with non-exponential discounting trained via UGAE outperform variants trained with Monte Carlo advantage estimation.

Understanding reinforcement learned crowds

1 code implementation19 Sep 2022 Ariel Kwiatkowski, Vicky Kalogeiton, Julien Pettré, Marie-Paule Cani

Each of these choices has a significant, and potentially nontrivial impact on the results, and so researchers should be mindful about choosing and reporting them in their work.

A Survey on Reinforcement Learning Methods in Character Animation

no code implementations7 Mar 2022 Ariel Kwiatkowski, Eduardo Alvarado, Vicky Kalogeiton, C. Karen Liu, Julien Pettré, Michiel Van de Panne, Marie-Paule Cani

Reinforcement Learning is an area of Machine Learning focused on how agents can be trained to make sequential decisions, and achieve a particular goal within an arbitrary environment.

reinforcement-learning Reinforcement Learning (RL)

A Perceptually-Validated Metric for Crowd Trajectory Quality Evaluation

no code implementations27 Aug 2021 Beatriz Cabrero Daniel, Ricardo Marques, Ludovic Hoyet, Julien Pettré, Josep Blat

A quality metric, QF, is proposed to abstract from reference data while capturing the most salient features that affect the perception of trajectory realism.

Data-Driven Crowd Simulation with Generative Adversarial Networks

1 code implementation23 May 2019 Javad Amirian, Wouter van Toll, Jean-Bernard Hayet, Julien Pettré

This paper presents a novel data-driven crowd simulation method that can mimic the observed traffic of pedestrians in a given environment.

Collision Avoidance

Real-time Crowd Tracking using Parameter Optimized Mixture of Motion Models

no code implementations16 Sep 2014 Aniket Bera, David Wolinski, Julien Pettré, Dinesh Manocha

We automatically compute the optimal parameters for each of these different models based on prior tracked data and use the best model as motion prior for our particle-filter based tracking algorithm.

Combinatorial Optimization

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