Search Results for author: Jiucai Zhang

Found 8 papers, 0 papers with code

Confidence-aware 3D Gaze Estimation and Evaluation Metric

no code implementations17 Mar 2023 Qiaojie Zheng, Jiucai Zhang, Amy Zhang, Xiaoli Zhang

To address the unreliable and overconfident issues, we introduce a confidence-aware model that predicts uncertainties together with gaze angle estimations.

Gaze Estimation

Multi-Phase Multi-Objective Dexterous Manipulation with Adaptive Hierarchical Curriculum

no code implementations26 May 2022 Lingfeng Tao, Jiucai Zhang, Xiaoli Zhang

Dexterous manipulation tasks usually have multiple objectives, and the priorities of these objectives may vary at different phases of a manipulation task.

Physics-Guided Hierarchical Reward Mechanism for Learning-Based Robotic Grasping

no code implementations26 May 2022 Yunsik Jung, Lingfeng Tao, Michael Bowman, Jiucai Zhang, Xiaoli Zhang

In this work, we develop a novel Physics-Guided Deep Reinforcement Learning with a Hierarchical Reward Mechanism to improve learning efficiency and generalizability for learning-based autonomous grasping.

Computational Efficiency Motion Planning +3

Meta Reinforcement Learning-Based Lane Change Strategy for Autonomous Vehicles

no code implementations28 Aug 2020 Fei Ye, Pin Wang, Ching-Yao Chan, Jiucai Zhang

The simulation results shows that the proposed method achieves an overall success rate up to 20% higher than the benchmark model when it is generalized to the new environment of heavy traffic density.

Autonomous Vehicles Imitation Learning +3

Learn and Transfer Knowledge of Preferred Assistance Strategies in Semi-autonomous Telemanipulation

no code implementations7 Mar 2020 Lingfeng Tao, Michael Bowman, Xu Zhou, Jiucai Zhang, Xiaoli Zhang

Enabling robots to provide effective assistance yet still accommodating the operator's commands for telemanipulation of an object is very challenging because robot's assistive action is not always intuitive for human operators and human behaviors and preferences are sometimes ambiguous for the robot to interpret.

Transfer Learning

Learn Task First or Learn Human Partner First: A Hierarchical Task Decomposition Method for Human-Robot Cooperation

no code implementations1 Mar 2020 Lingfeng Tao, Michael Bowman, Jiucai Zhang, Xiaoli Zhang

Applying Deep Reinforcement Learning (DRL) to Human-Robot Cooperation (HRC) in dynamic control problems is promising yet challenging as the robot needs to learn the dynamics of the controlled system and dynamics of the human partner.

Automated Lane Change Strategy using Proximal Policy Optimization-based Deep Reinforcement Learning

no code implementations7 Feb 2020 Fei Ye, Xuxin Cheng, Pin Wang, Ching-Yao Chan, Jiucai Zhang

The simulation results demonstrate the lane change maneuvers can be efficiently learned and executed in a safe, smooth, and efficient manner.

Autonomous Driving reinforcement-learning +1

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