no code implementations • 2 Apr 2024 • Piyush Gupta, David Isele, Sangjae Bae
Real-world driving involves intricate interactions among vehicles navigating through dense traffic scenarios.
1 code implementation • 28 Mar 2024 • Sangjae Bae, David Isele, Alireza Nakhaei, Peng Xu, Alexandre Miranda Anon, Chiho Choi, Kikuo Fujimura, Scott Moura
This paper presents an online smooth-path lane-change control framework.
no code implementations • 27 Nov 2023 • Jiachen Li, David Isele, Kanghoon Lee, Jinkyoo Park, Kikuo Fujimura, Mykel J. Kochenderfer
Moreover, we propose an interactivity estimation mechanism based on the difference between predicted trajectories in these two situations, which indicates the degree of influence of the ego agent on other agents.
no code implementations • 19 Jul 2023 • Kanghoon Lee, Jiachen Li, David Isele, Jinkyoo Park, Kikuo Fujimura, Mykel J. Kochenderfer
Although deep reinforcement learning (DRL) has shown promising results for autonomous navigation in interactive traffic scenarios, existing work typically adopts a fixed behavior policy to control social vehicles in the training environment.
1 code implementation • 1 Feb 2023 • Haimin Hu, David Isele, Sangjae Bae, Jaime F. Fisac
To ensure the safe operation of the interacting agents, we use a runtime safety filter (also referred to as a "shielding" scheme), which overrides the robot's dual control policy with a safety fallback strategy when a safety-critical event is imminent.
no code implementations • 6 Mar 2022 • Xiaobai Ma, David Isele, Jayesh K. Gupta, Kikuo Fujimura, Mykel J. Kochenderfer
Multi-agent reinforcement learning (MARL) provides an efficient way for simultaneously learning policies for multiple agents interacting with each other.
Multi-agent Reinforcement Learning reinforcement-learning +1
no code implementations • 17 Jan 2022 • Keuntaek Lee, David Isele, Evangelos A. Theodorou, Sangjae Bae
It can be difficult to autonomously produce driver behavior so that it appears natural to other traffic participants.
no code implementations • 8 Apr 2021 • Sangjae Bae, David Isele, Kikuo Fujimura, Scott J. Moura
This paper proposes a discretionary lane selection algorithm.
no code implementations • 9 Nov 2020 • Xiaobai Ma, Jiachen Li, Mykel J. Kochenderfer, David Isele, Kikuo Fujimura
Deep reinforcement learning (DRL) provides a promising way for learning navigation in complex autonomous driving scenarios.
no code implementations • 25 May 2020 • Maxime Bouton, Alireza Nakhaei, David Isele, Kikuo Fujimura, Mykel J. Kochenderfer
This approach exposes the agent to a broad variety of behaviors during training, which promotes learning policies that are robust to model discrepancies.
no code implementations • 27 Sep 2019 • David Isele
Dense urban traffic environments can produce situations where accurate prediction and dynamic models are insufficient for successful autonomous vehicle motion planning.
no code implementations • 27 Sep 2019 • Anahita Mohseni-Kabir, David Isele, Kikuo Fujimura
We investigate the problem of multi-agent reinforcement learning, focusing on decentralized learning in non-stationary domains for mobile robot navigation.
no code implementations • 27 Sep 2019 • David Isele, Alireza Nakhaei, Kikuo Fujimura
There have been numerous advances in reinforcement learning, but the typically unconstrained exploration of the learning process prevents the adoption of these methods in many safety critical applications.
no code implementations • 7 May 2019 • Yuchen Cui, David Isele, Scott Niekum, Kikuo Fujimura
Our analysis shows that UAIL outperforms existing data aggregation algorithms on a series of benchmark tasks.
1 code implementation • ICLR 2020 • Jiachen Yang, Alireza Nakhaei, David Isele, Kikuo Fujimura, Hongyuan Zha
To address both challenges, we restructure the problem into a novel two-stage curriculum, in which single-agent goal attainment is learned prior to learning multi-agent cooperation, and we derive a new multi-goal multi-agent policy gradient with a credit function for localized credit assignment.
1 code implementation • 28 Feb 2018 • David Isele, Akansel Cosgun
Deep reinforcement learning has emerged as a powerful tool for a variety of learning tasks, however deep nets typically exhibit forgetting when learning multiple tasks in sequence.
no code implementations • 30 Nov 2017 • David Isele, Akansel Cosgun
We view intersection handling on autonomous vehicles as a reinforcement learning problem, and study its behavior in a transfer learning setting.
no code implementations • 10 Oct 2017 • David Isele, Mohammad Rostami, Eric Eaton
Knowledge transfer between tasks can improve the performance of learned models, but requires an accurate estimate of the inter-task relationships to identify the relevant knowledge to transfer.
no code implementations • 2 May 2017 • David Isele, Reza Rahimi, Akansel Cosgun, Kaushik Subramanian, Kikuo Fujimura
Providing an efficient strategy to navigate safely through unsignaled intersections is a difficult task that requires determining the intent of other drivers.
no code implementations • 2 May 2017 • David Isele, Akansel Cosgun, Kikuo Fujimura
We analyze how the knowledge to autonomously handle one type of intersection, represented as a Deep Q-Network, translates to other types of intersections (tasks).