whoami
Hi, I'm Ningwei Bai.
Bio
I am Ningwei Bai, a fourth-year Robotics and AI (MEng) student at University College London. My interests sit around robotics, reinforcement learning, vision-language-action models, and post-training for reasoning large language models.
Outside research, I am also a coffee person with an SCA Intermediate Barista certificate. I like building things carefully, whether that means a robot policy, a small web tool, or a cup of coffee that actually tastes like the idea in my head.
CV Snapshot
Education
- University College London, Robotics and AI (MEng), London, UK Sep 2023 - Jun 2027 expected; integrated undergraduate and master's programme; average score 79%.
Research Interests
- Vision-language-action models for robotics.
- Large language models and vision-language models.
- Multimodal learning and retrieval.
Selected Publications
- SignVLA: real-time sign language-guided robotic manipulation via Attention LSTM and VLA models. ICAC 2026, accepted.
- An Event-Triggered Robust Reinforcement Learning Scheme for Nonlinear Systems with Unknown Disturbances. CCC 2026, accepted.
- Reinforcement learning based optimal control: a survey of ADP for manipulators and wheeled mobile robots. Advanced Mechatronics, 2026, 1(1), 1.
- Zero-shot Decomposed Retrieval Enhancement for Visually Rich Document via Broad Search and Deep Reasoning.
- Post-Training for Reasoning LLMs with Reinforcement Learning: A Stability-Efficiency Perspective. ICAC 2026, accepted.
Research Experience
- Vision-Language-Action Model Control by Sign Language Deployed NVIDIA GR00T on a robotic manipulator, built a MediaPipe Hands gesture feature pipeline, and connected sign language understanding to VLA model commands.
- Reinforcement Learning for Nonlinear Control Systems Combined event-triggered mechanisms, extended state observers, and adaptive dynamic programming to reduce redundant updates while preserving control performance.
- Visual RAG Systems Designed a zero-shot multimodal query decomposition method for visually rich document retrieval, improving Recall@1 in experiments.
Projects
- BabyBench Infant Self-Touch RL: built a Mujoco-based self-touch learning environment and trained early exploration behavior with PPO.
- ROS-based Human-Following Agricultural Robot Platform: developed an agricultural robot vehicle platform on ROS capable of following human movement for field assistance.
- Emotion-Aware AI Intelligent Photo Album: fine-tuned dialogue and expression-recognition components with Qwen, YOLO, ResNet50, and Gradio.
- 7-DOF Robotic Arm Simulation: a self-recorded course on MATLAB / Simulink-based 7-DOF robotic arm simulation, covering kinematics, dynamics, control-system design, and modelling practice.
Skills
Python, PyTorch, C, C++, Matlab, Simulink, ROS, ROS2, Linux, STM32 HAL, Solidworks, Fusion 360, Docker, HTML, JavaScript, React, PostgreSQL.
Timeline
UCL
Robotics and Artificial Intelligence (MEng)
Sichuan University
Research Assistant
Sichuan University
Research Assistant
Sichuan Changhong Hongwei Technology Co., Ltd.
Intern