Search Results for author: Letian Wang

Found 9 papers, 5 papers with code

Visual CoT: Unleashing Chain-of-Thought Reasoning in Multi-Modal Language Models

1 code implementation25 Mar 2024 Hao Shao, Shengju Qian, Han Xiao, Guanglu Song, Zhuofan Zong, Letian Wang, Yu Liu, Hongsheng Li

This paper presents Visual CoT, a novel pipeline that leverages the reasoning capabilities of multi-modal large language models (MLLMs) by incorporating visual Chain-of-Thought (CoT) reasoning.

SmartRefine: A Scenario-Adaptive Refinement Framework for Efficient Motion Prediction

1 code implementation18 Mar 2024 Yang Zhou, Hao Shao, Letian Wang, Steven L. Waslander, Hongsheng Li, Yu Liu

Context information, such as road maps and surrounding agents' states, provides crucial geometric and semantic information for motion behavior prediction.

Autonomous Vehicles motion prediction

LMDrive: Closed-Loop End-to-End Driving with Large Language Models

1 code implementation12 Dec 2023 Hao Shao, Yuxuan Hu, Letian Wang, Steven L. Waslander, Yu Liu, Hongsheng Li

On the other hand, previous autonomous driving methods tend to rely on limited-format inputs (e. g. sensor data and navigation waypoints), restricting the vehicle's ability to understand language information and interact with humans.

Autonomous Driving Instruction Following

ReasonNet: End-to-End Driving with Temporal and Global Reasoning

no code implementations CVPR 2023 Hao Shao, Letian Wang, RuoBing Chen, Steven L. Waslander, Hongsheng Li, Yu Liu

The large-scale deployment of autonomous vehicles is yet to come, and one of the major remaining challenges lies in urban dense traffic scenarios.

Autonomous Driving

Efficient Reinforcement Learning for Autonomous Driving with Parameterized Skills and Priors

1 code implementation8 May 2023 Letian Wang, Jie Liu, Hao Shao, Wenshuo Wang, RuoBing Chen, Yu Liu, Steven L. Waslander

Inspired by this, we propose ASAP-RL, an efficient reinforcement learning algorithm for autonomous driving that simultaneously leverages motion skills and expert priors.

Autonomous Driving reinforcement-learning

Transferable and Adaptable Driving Behavior Prediction

no code implementations10 Feb 2022 Letian Wang, Yeping Hu, Liting Sun, Wei Zhan, Masayoshi Tomizuka, Changliu Liu

By mimicking humans' cognition model and semantic understanding during driving, we propose HATN, a hierarchical framework to generate high-quality, transferable, and adaptable predictions for driving behaviors in multi-agent dense-traffic environments.

Autonomous Vehicles Trajectory Prediction

Online Adaptation of Neural Network Models by Modified Extended Kalman Filter for Customizable and Transferable Driving Behavior Prediction

no code implementations9 Dec 2021 Letian Wang, Yeping Hu, Changliu Liu

With the feedback of the observed trajectory, the algorithm is applied to neural-network-based models to improve the performance of driving behavior predictions across different human subjects and scenarios.

Autonomous Vehicles

Socially-Compatible Behavior Design of Autonomous Vehicles with Verification on Real Human Data

no code implementations28 Oct 2020 Letian Wang, Liting Sun, Masayoshi Tomizuka, Wei Zhan

It allows the AVs to infer the characteristics of other road users online and generate behaviors optimizing not only their own rewards, but also their courtesy to others, and their confidence regarding the prediction uncertainties.

Autonomous Vehicles

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