Portrait of Hanqing Zhao

Hanqing Zhao

Affiliate Member
Assistant Professor, Université Laval, Electrical and Computer Engineering
Research Topics
Multi-Agent Systems
Multitask Learning
Reinforcement Learning
Robotics
Swarm Intelligence

Biography

Hanqing Zhao is an Assistant Professor in the Département de génie électrique et de génie informatique of Université Laval. He is a member of the Laboratoire de Vision et Systèmes Numériques (LVSN).

Hanqing began his academic journey at the École Centrale de Pékin (Université Beihang). He earned an Ingénieur civil en informatique degree from École Polytechnique de Bruxelles (Université libre de Bruxelles), supervised by Marco Dorigo; and later received his Ph.D. in Computer Science (robotics) from McGill University, supervised by Gregory Dudek and Xue (Steve) Liu. He was then a Postdoctoral Researcher at the MIST Lab of École Polytechnique de Montréal, supervised by Giovanni Beltrame.

His research focuses on enabling robots to accomplish complex tasks while remaining resilient to faults and external disturbances. He leverages machine learning, adaptive control, and advanced consensus achievement techniques, such as reinforcement learning, supervised learning, Blockchain technologies to develop robust, (especially multi-)robot systems.

Publications

Establishment of a tissue culture system with adventitious bud regeneration for the new raspberry germplasm 'autumn–winter yellow raspberry'
Jinyu Liu
Ye Guo
Chenxing Zhang
Yingyue Li
Self-assembled chamber-like cardiac organoids for modeling cardiac chamber formation and cardiotoxicity assessment
Xinle Zou
Fanwen Wang
Huilin Zheng
Xianzhuang Liu
Tianci Kong
Rui Jiang
Yingying Guo
Yu Liang
Bo Wang
Duanqing Pei
Key Issues and Future Directions in the Construction and Control of Geocentric Orbit Constellations for Gravitational Wave Detection
Yue LIU
Borui YAO
Meng LU
Yanchao HE
Ming LI
Lihua ZHANG
Jianying WANG
Mingying HUO
Body Keypoint Detection Algorithm Based on Channel Attention Mechanism
Shaojun Yu
Wenhao Huo
Yuping Lu
Yilin Wang
Lili Wang
Rizwan Anjum Muhammad
With the implementation of national strategies aimed at building a leading sporting nation and promoting nationwide fitness, physical fitnes… (see more)s assessment has gained increasing attention as a crucial metric for evaluating students' physical condition and motor abilities. Concurrently, advancements in computer vision have enabled body keypoint detection technology to gradually replace traditional manual measurement methods, demonstrating significant potential for application in automated assessment systems. Accurate recognition of keypoints serves as the fundamental support for intelligent physical fitness testing and smart sports. However, existing keypoint detection algorithms often suffer from drifting of extremity keypoints, such as those of the hands and feet keypoints, in physical fitness test scenarios, thereby compromising the accuracy of the assessment. To address this challenge, this paper proposes Channel Attention BlazePose(CA-BlazePose), a body keypoint detection algorithm based on a channel attention mechanism, specifically designed for count-based physical fitness test scenarios, namely sit-ups and pull-ups. To tackle the issue of keypoint drift in motion detection, CA-BlazePose aims to enhance keypoint detection accuracy. It employs a two-stage network architecture consisting of heatmap training and regression fine-tuning, incorporating a channel attention module. This module strengthens the feature extraction process for extremity keypoints such as hands and feet, thereby improving recognition accuracy during detection.Experimental results demonstrate that, compared to mainstream keypoint detection algorithms such as OpenPose and BlazePose, the proposed CA-BlazePose algorithm achieves improvements in the PCK on two representative motion datasets, Common Objects in Context(COCO) and Leeds Sports Pose Extended(LSPET). Specifically, it shows an approximate increase of 7% for hand and foot keypoints and 8% for overall keypoints. Furthermore, in real-time detection tests for sit-ups and pull-ups captured from various viewing angles, CA-BlazePose demonstrates superior performance in handling frames with missing or drifting keypoints compared to existing algorithms, exhibiting more stable recognition performance under identical detection conditions.
TCMIIES: A Browser-Based LLM-Powered Intelligent Information Extraction System for Academic Literature
The exponential growth of academic publications has created an urgent need for automated tools capable of extracting structured knowledge fr… (see more)om unstructured scientific texts. While large language models (LLMs) have demonstrated remarkable capabilities in natural language understanding and information extraction, existing solutions often require specialized infrastructure, programming expertise, or fine-tuned domain-specific models that create barriers for researchers in specialized fields. This paper presents TCMIIES, a browser-based, zero-installation platform that leverages commercial LLM APIs to perform structured information extraction from academic literature. The system employs a novel schema-guided prompting framework with automatic system prompt generation, enabling researchers to define custom extraction schemas through an intuitive graphical interface without any programming. TCMIIES features a pure front-end architecture that ensures data privacy by processing all information locally in the browser, supports five major LLM providers, implements concurrent batch processing with automatic retry mechanisms, and provides intelligent field mapping for Chinese academic databases including CNKI and Wanfang. We demonstrate the system's effectiveness through comprehensive evaluation across multiple extraction scenarios in Traditional Chinese Medicine research, achieving structured output compliance rates exceeding 94\% and information extraction accuracy comparable to domain-expert annotation. The system represents a practical, accessible solution that bridges the gap between advanced LLM capabilities and domain-specific academic information extraction needs, particularly for researchers in specialized fields who require flexible, privacy-preserving, and cost-effective extraction tools.
Beyond the total NIHSS score: association between impaired level of consciousness and early neurological deterioration in mild large vessel occlusion stroke
Qiangze Ji
Liangliang Sun
Zenghui Liu
Jing Yu
Kaiyue Duan
Lili Guo
Qiuyi Zhang
Physics-informed cross-coupled information flow modeling for spatiotemporal dynamical systems
Hangyi Yu
Yu Zhang
Lianlei Lin
Zongwei Zhang
Sheng Gao
Junkai Wang
Unraveling microplastic retention distribution in porous media: A unified framework coupling flow conditions and particle properties
Haiyu Yuan
Guangqiu Jin
Qihao Jiang
Shuo Wang
Hao Lin
Zhongtian Zhang
Xiangfei Qi
CoB Doped Ni-MOF/NF Composite Catalyst for Efficient Hydrogen Evolution Reaction in Alkaline Media
Haibo Liu
Hongming Zhang
Jiasheng Wang
Bo Li
Yicong Zhu
Yuchen Zhang
Junteng Lv
Zhiwu Qiao
Jinxiang Yang
The advancement of efficient and stable non-precious metal electrocatalysts is crucial for promoting the development of alkaline water elect… (see more)rolysis, a key clean energy technology for hydrogen production. This study presents a rational design of a self-supported CoB@Ni-MOF/NF catalyst for scalable hydrogen production, constructed by building a hierarchical Ni-MOF/NF conductive scaffold, incorporating amorphous CoB active phases, and establishing a synergistic Ni-Co-B interface. The optimized electrode exhibits exceptional hydrogen evolution reaction performance in alkaline media, achieving an ultralow overpotential of 33.2 mV at 10 mA cm-2-performance that rivals some noble-metal-doped systems—along with stable operation exceeding 28 hours. Comprehensive characterization confirms that the superior activity originates from abundant accessible active sites and optimized reaction energetics enabled by the composite architecture, offering a generalizable design strategy that integrates MOFs, conductive substrates, and transition metal borides for advanced energy conversion materials.
Comparison between DNA- and RNA-based nucleic acid amplification tests for detecting Mycoplasma pneumoniae in pediatric specimens
Boyi Jiang
Chao Yan
Mingxuan Wang
Zhen Wang
Yanling Feng
Shijie Wang
Jing Yuan
Yuehua Ke
A Blockchain Framework for Equitable and Secure Task Allocation in Robot Swarms
Alexandre Pacheco
Xue Liu
Marco Dorigo
Recent studies demonstrate the potential of blockchain to enable robots in a swarm to achieve secure consensus about the environment, partic… (see more)ularly when robots are homogeneous and perform identical tasks. Typically, robots receive rewards for their contributions to consensus achievement, but no studies have yet targeted heterogeneous swarms, in which the robots have distinct physical capabilities suited to different tasks. We present a novel framework that leverages domain knowledge to decompose the swarm mission into a hierarchy of tasks within smart contracts. This allows the robots to reach a consensus about both the environment and the action plan, allocating tasks among robots with diverse capabilities to improve their performance while maintaining security against faults and malicious behaviors. We refer to this concept as equitable and secure task allocation. Validated in Simultaneous Localization and Mapping missions, our approach not only achieves equitable task allocation among robots with varying capabilities, improving mapping accuracy and efficiency, but also shows resilience against malicious attacks.
A Generic Framework for Byzantine-Tolerant Consensus Achievement in Robot Swarms
Alexandre Pacheco
Volker Strobel
Andreagiovanni Reina
Xue Liu
Marco Dorigo
Recent studies show that some security features that blockchains grant to decentralized networks on the internet can be ported to swarm robo… (see more)tics. Although the integration of blockchain technology and swarm robotics shows great promise, thus far, research has been limited to proof-of-concept scenarios where the blockchain-based mechanisms are tailored to a particular swarm task and operating environment. In this study, we propose a generic framework based on a blockchain smart contract that enables robot swarms to achieve secure consensus in an arbitrary observation space. This means that our framework can be customized to fit different swarm robotics missions, while providing methods to identify and neutralize Byzantine robots, that is, robots which exhibit detrimental behaviours stemming from faults or malicious tampering.