Publications

Research in resilient autonomy, safe learning, and computer vision.

My work explores how autonomous systems can perceive reliably, learn safely, and keep operating under faults and attacks.

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2026

  1. ATLAS: Affine Transformation Learning with Action-Space Reduction for Safe Multi-UAV Formation Planning
    Submitted manuscript
    ATLAS: Affine Transformation Learning with Action-Space Reduction for Safe Multi-UAV Formation Planning
    Chieh Tsai, Hossein Rastgoftar, and Salim Hariri
    2026
    Submitted to IEEE Transactions on Automation Science and Engineering (TASE).
    PDF Video Sim-to-Real
  2. RACF: A Resilient Autonomous Car Framework with Object Distance Correction
    Submitted manuscript
    RACF: A Resilient Autonomous Car Framework with Object Distance Correction
    Chieh Tsai, Hossein Rastgoftar, and Salim Hariri
    arXiv preprint, 2026
    Submitted to IEEE Transactions on Automation Science and Engineering (TASE).
    arXiv PDF
  3. Aerial-borne Data Management Center (ADMC)
    Symposium paper
    Aerial-borne Data Management Center (ADMC)
    Chieh Tsai, Hossein Rastgoftar, and Salim Hariri
    In Proceedings of the AAAI Symposium Series, 2026
    DOI HTML PDF
  4. Learning over Forward-Invariant Policy Classes: Reinforcement Learning without Safety Concerns
    Preprint
    Learning over Forward-Invariant Policy Classes: Reinforcement Learning without Safety Concerns
    Chieh Tsai, Muhammad Junayed Hasan Zahed, Salim Hariri, and Hossein Rastgoftar
    arXiv preprint, 2026
    Submitted to ACC 2027.
    arXiv PDF
  5. Mission-Level Runtime Assurance Framework for Autonomous Driving
    Preprint
    Mission-Level Runtime Assurance Framework for Autonomous Driving
    Chieh Tsai and Salim Hariri
    arXiv preprint, 2026
    Accepted at AICCSA 2026.
    arXiv PDF
  6. Security and Resilience in Autonomous Vehicles: A Proactive Design Approach
    Book chapter
    Security and Resilience in Autonomous Vehicles: A Proactive Design Approach
    Chieh Tsai, Murad Mehrab Abrar, and Salim Hariri
    In Connected, Cooperative and Autonomous Mobility, 2026
    Accepted book chapter; preprint available.
    arXiv PDF
  7. Online Reinforcement Learning for Safe Gain Scheduling in Nonlinear Quadrotor Control
    Preprint
    Online Reinforcement Learning for Safe Gain Scheduling in Nonlinear Quadrotor Control
    Muhammad Junayed Hasan Zahed, Chieh Tsai, Salim Hariri, and Hossein Rastgoftar
    arXiv preprint, 2026
    Accepted at MECC 2026.
    arXiv PDF

2025

  1. Intelligent Obstacle Resilience in Autonomous Vehicles Under Security Threats
    Conference paper
    Intelligent Obstacle Resilience in Autonomous Vehicles Under Security Threats
    Chieh Tsai and Salim Hariri
    In 2025 IEEE 12th International Conference on Cyber Security and Cloud Computing (CSCloud), New York, USA, 2025
    DOI PDF
  2. Enhancing satellite image quality with the edge-based wavelet transformer for super-resolution
    Journal article
    Enhancing satellite image quality with the edge-based wavelet transformer for super-resolution
    Chieh Tsai, Pei-Jun Lee, Shimaa Bergies, John Liobe, and Vaidotas Barzdnas
    Applied Computing and Geosciences, 2025
    DOI

2024

  1. Spatial and Wavelet Attention-Enhanced Super-Resolution for Small Object Detection in Satellite Imagery
    Conference paper
    Spatial and Wavelet Attention-Enhanced Super-Resolution for Small Object Detection in Satellite Imagery
    Chieh Tsai, Pei-Jun Lee, Trong An Bui, Tzu-Yi Pang, John Liobe, and Vaidotas Barzdnas
    In 2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 2024
    DOI

2023

  1. Enhancing Age and Gender Classification through cGAN-based Data Augmentation
    Conference paper
    Enhancing Age and Gender Classification through cGAN-based Data Augmentation
    Chieh Tsai and Chang-Hong Lin
    In 2023 IEEE 12th Global Conference on Consumer Electronics (GCCE), 2023
    DOI

2021

  1. Real-time semantic segmentation with dual encoder and self-attention mechanism for autonomous driving
    Journal article
    Real-time semantic segmentation with dual encoder and self-attention mechanism for autonomous driving
    Yu-Bang Chang, Chieh Tsai, Chang-Hong Lin, and Poki Chen
    Sensors, 2021
    DOI HTML PDF