Search Results for author: Tong Heng Lee

Found 9 papers, 1 papers with code

Towards Generalized and Incremental Few-Shot Object Detection

no code implementations23 Sep 2021 Yiting Li, Haiyue Zhu, Jun Ma, Chek Sing Teo, Cheng Xiang, Prahlad Vadakkepat, Tong Heng Lee

We conduct experiments on both Pascal VOC and MS-COCO, which demonstrate that our method can effectively solve the problem of incremental few-shot detection and significantly improve the detection accuracy on both base and novel classes.

Autonomous Driving Continual Learning +2

Few-Shot Object Detection via Classification Refinement and Distractor Retreatment

no code implementations CVPR 2021 Yiting Li, Haiyue Zhu, Yu Cheng, Wenxin Wang, Chek Sing Teo, Cheng Xiang, Prahlad Vadakkepat, Tong Heng Lee

The failure modes of FSOD are investigated that the performance degradation is mainly due to the classification incapability (false positives), which motivates us to address it from a novel aspect of hard example mining.

Few-Shot Object Detection

Generalized Iterative Super-Twisting Sliding Mode Control: A Case Study on Flexure-Joint Dual-Drive H-Gantry Stage

no code implementations23 Mar 2021 Wenxin Wang, Jun Ma, Zilong Cheng, Xiaocong Li, Abdullah Al Mamun, Tong Heng Lee

Mechatronic systems are commonly used in the industry, where fast and accurate motion performance is always required to guarantee manufacturing precision and efficiency.

Global Iterative Sliding Mode Control of an Industrial Biaxial Gantry System for Contouring Motion Tasks

no code implementations23 Mar 2021 Wenxin Wang, Jun Ma, Zilong Cheng, Xiaocong Li, Clarence W de Silva, Tong Heng Lee

This paper proposes a global iterative sliding mode control approach for high-precision contouring tasks of a flexure-linked biaxial gantry system.

Convex Parameterization and Optimization for Robust Tracking of a Magnetically Levitated Planar Positioning System

no code implementations22 Mar 2021 Jun Ma, Zilong Cheng, Haiyue Zhu, Xiaocong Li, Masayoshi Tomizuka, Tong Heng Lee

Magnetic levitation positioning technology has attracted considerable research efforts and dedicated attention due to its extremely attractive features.

Neural Network iLQR: A Reinforcement Learning Architecture for Trajectory Optimization

no code implementations21 Nov 2020 Zilong Cheng, Jun Ma, Xiaoxue Zhang, Frank L. Lewis, Tong Heng Lee

In this work, a new reinforcement learning architecture based on iterative linear quadratic regulator (iLQR) is developed and presented without the requirement of any prior knowledge of the system model, which is termed as an approach of a "neural network iterative linear quadratic regulator (NNiLQR)".

Rethinking solar photovoltaic parameter estimation: global optimality analysis and a simple efficient differential evolution method

1 code implementation16 Nov 2020 Shuhua Gao, Cheng Xiang, Yu Ming, Tan Kuan Tak, Tong Heng Lee

Accurate, fast, and reliable parameter estimation is crucial for modeling, control, and optimization of solar photovoltaic (PV) systems.

Robust Fixed-Order Controller Design for Uncertain Systems with Generalized Common Lyapunov Strictly Positive Realness Characterization

no code implementations5 Jun 2020 Jun Ma, Haiyue Zhu, Xiaocong Li, Wenxin Wang, Clarence W. de Silva, Tong Heng Lee

Moreover, it is noteworthy that the proposed methodology additionally provides the necessary and sufficient conditions for this robust controller design with the consideration of a prescribed finite frequency range, and therefore significantly less conservatism is attained in the system performance.

Role Playing Learning for Socially Concomitant Mobile Robot Navigation

no code implementations29 May 2017 Mingming Li, Rui Jiang, Shuzhi Sam Ge, Tong Heng Lee

In this paper, we present the Role Playing Learning (RPL) scheme for a mobile robot to navigate socially with its human companion in populated environments.

Robot Navigation

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