Changfu Xu (徐常福)

I am a Ph.D. student in the Department of Computer Science at BNU-HKBU United Internation College and Hong Kong Baptist University.

My research topic mainly includes Mobile Edge Computing, DRL, AIGC, Medical Robot, and Social Network.

Email  /  Google Scholar  /  Github

Publications
Incorporating Startup Delay into Collaborative Edge Computing for Superior Task Efficiency
Changfu Xu, Jianxiong Guo, Jiandian Zeng, Yupeng Li, Jiannong Cao, and Tian Wang
The IEEE/ACM International Symposium on Quality of Service (IWQoS 2024), 2024 (Accepted)

We propose an online JSPTO method that integrates the consideration of service startup delay to enhance task offloading efficiency.

Enhancing AI-Generated Content Efficiency through Adaptive Multi-Edge Collaboration
Changfu Xu, Jianxiong Guo, Jiandian Zeng, Shengguang Meng, Xiaowen Chu, Jiannong Cao, and Tian Wang
The 44th IEEE International Conference on Distributed Computing Systems (ICDCS 2024), 2024 (Accepted)

We propose an adaptive multi-server collaborative MEC approach tailored for heterogeneous edge environments to achieve efficient AIGC by dynamically allocating task workload across multiple ESs.

PhD Forum Abstract: Diffusion-based Task Scheduling for Efficient AI-Generated Content in Edge Networks
Changfu Xu
The 2024 ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2024), 2024 (Accepted)

We propose a novel AIGC Task Scheduling (DDRL-ATS) algorithm based on Diffusion Deep Reinforcement Learning, achieving efficient AIGC tailored for heterogeneous MEC environments.

Dynamic Parallel Multi-Server Selection and Allocation in Collaborative Edge Computing
Changfu Xu, Jianxiong Guo, Yupeng Li, Haodong Zou, Weijia Jia, and Tian Wang
IEEE Transactions on Mobile Computing, 2024
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We propose an online Deep Reinforcement Learning-based Simultaneous Multi-ES Offloading (DRL-SMO) algorithm along with a top-k deep Q-learning network model, thus simultaneously enabling multiple ESs’ idle resources to accelerate task processing.

SMCoEdge: Simultaneous Multi-server Offloading for Collaborative Mobile Edge Computing
Changfu Xu, Yupeng Li, Xiaowei Chu, Haodong Zou, Weijia, Jia, and Tian Wang
The 23rd International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP 2023), 2024

We propose a novel approach called SMCoEdge, which utilizes simultaneous multi-ES offloading to minimize the make-span of task offloading for computation-intensive IoT applications.

Improving Fairness in Coexisting 5G and Wi-Fi Network on Unlicensed Band with URLLC
Haodong Zou, Yupeng Li, Xiaowen Chu, Changfu Xu, and Tian Wang
The IEEE/ACM 31st International Symposium on Quality of Service (IWQoS), 2023

We propose a novel Reinforcement Learning based Transmission Revoking Approach (RL-TRA) to address this problem aiming at fairer utilization of unlicensed band restrained by URLLC.

A Mechanism-image Fusion Approach to Calibration of An Ultrasound-guided Dual-arm Robotic Brachytherapy Systems
Jing Xiong* Changfu Xu*, Khalil Ibrahim, Hao Deng, and Zeyang Xia (*Contribute equally)
IEEE/ASME Transactions on Mechatronics, 2021

We propose a mechanism-image fusion approach to calibration of a US-guided dual-arm robotic brachytherapy system.

A cost-effective algorithm for inferring the trust rate between two individuals in social networks
Chengying Mao (Supervisor), Changfu Xu, and Qiang He
Knowledge-Based Systems, 2019

In this paper, a restricted traversal method is defined to identify the strong trust paths from the truster and the trustee. Then, these paths are aggregated to predict the trust rate between them. During the traversal on a social network, interest topics, and topology features are comprehensively considered, where weighted interest topics are used to measure the semantic similarity between users.

Entropy-Based Dynamic Complexity Metrics for Service-Oriented Systems
Chengying Mao (Supervisor) and Changfu Xu
The 24th Asia-Pacific Software Engineering Conference Workshops (APSECW), 2017

We propose some dynamic complexity metrics for service systems through measuring their execution behaviors.

Selected Awards

  • The national first prize of the 10th China Graduate Electronic Design Competition, 2015
  • Postgraduate Scholarship, JXUFE, 2015-2018
  • Excellent master's thesis of Jiangxi Province, 2018

Academic Services

Session chair in ICA3PP 2023