Jiaqi (Jack) Wang

Ph.D. Candidate

PSU Data Science Lab
College of Information Sciences and Technology
The Pennsylvania State University
Email: jqwang [at] psu [dot] edu


Bio

Jiaqi (Jack) Wang is a Ph.D. student in the College of Information Sciences and Technology at The Pennsylvania State University. He obtained his M.S. and B.Eng. at Zhejiang University. Currently he is working with Dr. Fenglong Ma.

Research Interests

Jack's research interests are Federated Learning, Foundation Models Distributed Learning, and Healthcare Informatics.


News

[03/2024] Received the IST Ph.D. Student Award for Research Excellence, the highest honor for IST graduate students in research. Thank my advisor and collaborators!
[02/2024] One tutorial was accepted by PAKDD 2024 on heterogeneity in federated learning.
[02/2024] Received SDM 2024 Travel Award.
[02/2024] One paper was accepted by LREC-Coling 2024 on automated ICD coding.
[02/2024] Two paper were accepted by PAKDD 2024 on personalized federated learning (oral presentation) and foundation models in federated learning (poster).
[01/2024] I was invited to serve as a PC member for IJCAI 2024.
[01/2024] I will join Sony AI as a research intern working on foundation models in federated learning this spring.
[12/2023] Two paper were accepted by SDM 2024 on EHR data generation with diffusion models and automated machine learning for risk prediction.
[11/2023] One paper was accepted by AAAI 2024 on security of pre-trained models.
[11/2023] One tutorial was accepted by SDM 2024 on heterogeneity in federated learning.
[10/2023] One paper was accepted by International Workshop on Federated Learning in the Age of Foundation Models in Conjunction with NeurIPS 2023 on foundation model security in federated learning.
[10/2023] Received NeurIPS 2023 Scholar Award.
[10/2023] One paper was accepted by EMNLP 2023 on hierarchical pretraining using multimodal EHR data.
[09/2023] One paper was accepted by Rare Disease and Orphan Drugs Journal on federated learning for rare disease detection.
[09/2023] One paper was accepted by NeurIPS 2023 on heterogeneous model reassembly in FL.
[09/2023] I was invited to serve as a PC member for SDM 2024.
[08/2023] I was invited to serve as a reviewer for Learning on Graphs 2023.
[08/2023] One survey paper "Multimodal Federated Learning: A Survey" was accepted by Sensors.
[03/2023] Received KDD 2023 Travel Award.
[06/2023] One paper was accepted by Federated Learning for Distributed Data Mining, KDD 2023 on heterogeneous model aggregation in FL.
[06/2023] I was invited to serve as a reviewer for EMNLP 2023.
[05/2023] I was invited to serve as a PC member for FL for Distributed Data Mining KDD 2023.
[04/2023] I will join Visa Research as a machine learning research intern at the ATL office this summer.
[03/2023] Received SDM 2023 Travel Award.
[02/2023] Received IST College 2023 Travel Award.
[02/2023] I was invited to serve as a reviewer for IEEE Transactions on Neural Networks and Learning Systems.
[01/2023] I passed the comprehensive exam and became a Ph.D. candidate.
[01/2023] I was invited to serve as a reviewer for AAAI 2023 Workshop for AI Acceleration.
[12/2022] One paper was accepted by SDM 2023 on semi-supervised federated learning.
[12/2022] I was invited to serve as a PC member for KDD 2023.
[12/2022] I was invited to serve as a PC member for ACL 2023.
[11/2022] I was invited to serve as a PC member for AAAI 2023 Workshop.
[11/2022] Received IST College 2022 Travel Award.
[10/2022] One paper was accepted by BIBM 2022 on automated medical risk predictive modeling on EHR.
[10/2022] I was invited to serve as a reviewer for NeurIPS 2022 Workshop MetaLearn.
[09/2022] I was invited to serve as a reviewer for Learning on Graphs 2022.
[08/2022] One paper was accepted by ICDM 2022.
[08/2022] I was invited to serve as a PC Member for FedGraph 2022.
[07/2022] I was invited to serve as a PC Member for AAAI 2023.
[06/2022] One paper was accepted by ECML PKDD 2022 on COVID-19 vaccine side effect prediction using federated learning.
[03/2022] I will join Visa Research as a machine learning research intern this summer.
[02/2022] I start to cooperate with Sony R&D Center to work on federated learning in multi-domain applications.
[10/2021] One paper was accepted by BigData 2021 on semi-supervised federated learning.
[04/2021] One paper was accepted by Asian Chi 2021. Thanks Dr. Ritter!
[04/2021] I will join Analytics Center of Excellence, IQVIA as a machine learning research intern in 2021 summer.
[03/2021] Received IST College 2021 Travel Award.
[02/2021] I was invited to serve as a reviewer for ACL-IJCNLP 2021.
[01/2021] One paper was accepted by AAAI Workshop 2021 and selected as Spotlight Presentation.
[11/2020] I was invited to serve as a session chair at IEEE Cybermatics Congress 2020.
[10/2020] I was invited to give a talk at Kennesaw State University. Thank Dr. Xu for host.
[10/2020] One paper was accepted by W-NUT 2020.
[09/2020] Served as an external reviewer for WSDM 2021.
[08/2020] Served as an external reviewer for CCS 2020.
[08/2020] I was invited to serve as a reviewer for IEEE IPCCC 2020.
[06/2020] I was invited to serve as a reviewer for WASA 2020.
[06/2020] I was invited to serve as a reviewer for Information Discovery and Delivery.
[10/2019] I was invited to give a talk at the annual conference of Zhejiang University Alumni Association in North America.
[08/2019] I moved from Georgia to Pennsylvania. Bye old friends and hi new friends!
[03/2019] I received the 2019 Brahm Verma Graduate Leadership Award - Honorable Mention.
[10/2018] I was invited to give a talk at the Youth Scholar Forum hold by Georgia Tech and Association of Chinese Professionals.


Selected Publications

Tutorials

Tutorial: Heterogeneity in Federated Learning
Jiaqi Wang, Fenglong Ma
SDM 2024
[Website]

Conference Papers

CoRelation: Boosting Automatic ICD Coding Through Contextualized Code Relation Learning
Junyu Luo, Xiaochen Wang, Jiaqi Wang, Aofei Chang, Yaqing Wang, Fenglong Ma
LREC-COLING 2024

Rethinking Personalized Federated Learning with Clustering-based Dynamic Graph Propagation
Jiaqi Wang, Yuzhong Chen, Yuhang Wu, Mahashweta Das, Hao Yang, Fenglong Ma
PAKDD 2024
Oral presentation
[Paper]

Unveiling Backdoor Risks Brought by Foundation Models in Heterogeneous Federated Learning
Xi Li, Chen Wu, Jiaqi Wang*
PAKDD 2024
[Paper]

Automated Fusion of Multimodal Electronic Health Records for Better Medical Predictions
Suhan Cui, Jiaqi Wang, Yuan Zhong, Han Liu, Ting Wang, Fenglong Ma
SDM 2024

MedDiffusion: Boosting Health Risk Prediction via Diffusion-based Data Augmentation
Yuan Zhong, Suhan Cui, Jiaqi Wang, Ziyi Yin, Yaqing Wang, Houping Xiao, Mengdi Huai, Ting Wang, Fenglong Ma
SDM 2024

VQAttack: Transferable Adversarial Attacks on Visual Question Answering via Pre-trained Models
Ziyi Yin, Muchao Ye, Tianrong Zhang, Jiaqi Wang, Han Liu, Jinghui Chen, Ting Wang, Fenglong Ma
AAAI 2024

Hierarchical Pretraining on Multimodal Electronic Health Records
Xiaochen Wang, Junyu Luo, Jiaqi Wang, Ziyi Yin, Suhan Cui, Yuan Zhong, Yaqing Wang, Fenglong Ma
EMNLP 2023
[Paper]

Towards Personalized Federated Learning via Heterogeneous Model Reassembly
Jiaqi Wang, Xingyi Yang, Suhan Cui, Liwei Che, Lingjuan Lyn, Dongkuan Xu, Fenglong Ma
NeurIPS 2023
[Paper] [Poster]

Knowledge-Enhanced Semi-Supervised Federated Learning for Aggregating Heterogeneous Lightweight Clients in IoT
Jiaqi Wang, Shenglai Zeng, Zewei Long, Yaqing Wang, Houping Xiao, Fenglong Ma
SDM 2023
[Paper] [Slides][Poster]

AUTOMED: Automated Medical Risk Predictive Modeling on Electronic Health Records
Suhan Cui, Jiaqi Wang, Xinning Gui, Ting Wang, Fenglong Ma
BIBM 2022
[Paper]

MedSkim: Denoised Health Risk Prediction via Skimming Medical Claims Data
Suhan Cui, Junyu Luo, Muchao Ye, Jiaqi Wang, Ting Wang, Fenglong Ma
ICDM 2022

Towards Federated COVID-19 Vaccine Side Effect Prediction
Jiaqi Wang, Cheng Qian, Suhan Cui, Lucas M. Glass, Fenglong Ma
ECML PKDD 2022
[Paper]

FedTriNet: A Pseudo Labeling Method with Three Players for Federated Semi-supervised Learning
Liwei Che, Zewei Long, Jiaqi Wang, Yaqing Wang, Houping Xiao, and Fenglong Ma
BigData 2021
[Paper]

Journal Papers

Federated Learning for Rare Disease Detection: A Survey
Jiaqi Wang, Fenglong Ma
Rare Disease and Orphan Drugs Journal
[Paper]

Multimodal Federated Learning: A Survey
Liwei Che, Jiaqi Wang, Fenglong Ma
Sensors
[Paper]

Workshop Papers

Backdoor Threats from Compromised Foundation Models to Federated Learning
Xi Li, Songhe Wang, Chen Wu, Hao Zhou, Jiaqi Wang*
International Workshop on Federated Learning in the Age of Foundation Models in Conjunction with NeurIPS 2023
[Paper]

FedLEGO: Enabling Heterogenous Model Cooperation via Playing Toys
Jiaqi Wang, Suhan Cui, Fenglong Ma
Federated Learning for Distributed Data Mining, KDD 2023
[Paper] (The full version has been accepted by NeurIPS 2023.)

An In-depth Review of Privacy Concerns Raised by the COVID-19 Pandemic
Jiaqi Wang
AAAI Workshop 2021
[Paper] [Slides]

Are Learners Satisfied with their MOOC Experiences? Assessing and Improving Online Learners’ Interactions
Jiaqi Wang, Chacha Chen, Hua Shen, Frank E Ritter
Asian Chi 2021
[Paper]

Joint Event Multi-task Learning for Slot Filling in Noisy Text
Chacha Chen, Chieh-Yang Huang, Yaqi Hou, Yang Shi, Enyan Dai, Jiaqi Wang*
In Proceedings of the Workshop on Noisy User-generated Text (W-NUT, EMNLP 2020)
[Paper] [Code]

Preprint Papers

Recent Advances in Predictive Modeling with Electronic Health Records
Jiaqi Wang, Junyu Luo, Muchao Ye, Xiaochen Wang, Yuan Zhong, Aofei Chang, Guanjie Huang, Ziyi, Yin, Cao Xiao, Jimeng Sun, Fenglong Ma
arXiv preprint arXiv:2402.01077v1
[Paper]

Vulnerabilities of Foundation Model Integrated Federated Learning Under Adversarial Threats
Chen Wu, Xi Li, Jiaqi Wang*
arXiv preprint arXiv:2401.10375v1
[Paper]

FedCon: A Contrastive Framework for Federated Semi-Supervised Learning
Zewei Long, Jiaqi Wang, Yaqing Wang, Houping Xiao, Fenglong Ma
arXiv preprint arXiv:2109.045331
[Paper]


Experience

Sony AI, US

       Research Intern,   Spring 2024

       Mentors: Jingtao Li, Weiming Zhuang, Lingjuan Lyu

Visa Research, CA, US

       Machine Learning Research Intern,   Summer 2022, 2023

       Mentors in 2023: Yiwei Cai, Shan Jin, Yuzhong Chen

       Mentors in 2022: Hao Yang, Yuzhong Chen, Yuhang Wu

Analytics Center of Excellence, IQVIA, MA, US

       Machine Learning Research Intern,   Summer 2021

       Mentors: Cheng Qian

USGS, GA, US

       Research Scientist Intern,   Spring 2019


Teaching

Teaching Assistant

2023 Fall      Teaching Assistant      DS402: Data Science in Healthcaree
2022 Fall      Teaching Assistant      DS310: Machine Learning for Data Analytics
2022 Spring      Teaching Assistant      DS310: Machine Learning for Data Analytics
2021 Fall      Teaching Assistant      DS310: Machine Learning for Data Analytics
2021 Spring      Teaching Assistant      DS300: Data Privacy and Security

Mentored Students

Shiqi Wang             M.S.      Purdue University                                                                              Jun. 2023 - Present
Jingxuan Wang      B.S.      The Pennsylvania State University                                                  Sep. 2023 - Present
Aaron Cui                B.S.      The Pennsylvania State University                                                  Sep. 2023 - Present
Boyang Wang         B.S.      Lanzhou University                                                                             Jul. 2023 - Dec. 2023
Chenlong Yin          B.S.      University of Science and Technology of China                             Jul. 2023 - Dec. 2023
Shenglai Zeng         B.S.      University of Electronic Science and Technology of China            2021 - 2022              Now Ph.D. student at MSU


Awards

  • Excellent Research Award, IST, Penn State, 2024

  • Conference Travel Grants, SDM, NeurIPS, KDD, 2022 - 2024

  • College Travel Award, IST, Penn State, 2021 - 2023

  • Brahm Verma Graduate Leadership Award - Honorable Mention, University of Georgia, 2019



  • Service

  • Conference Program Committee or Reviewer: KDD 2024, IJCAI 2024, SDM 2024, EMNLP 2023, KDD 2023, ACL 2023, AAAI 2023, CIKM 2023, NeurIPS 2022, LOG 2022,2023, FedGraph 2022, ACL-IJCNLP 2021, W-NUT 2020, WSDM 2021, CCS 2020, IEEE IPCCC 2020, WASA 2020.

  • Journal Reviewer: Information Discovery and Delivery

  • Session Chair: IEEE Cybermatics Congress 2020  

  • Judge: MCM 2019 - 2024  



  • Personal

  • Be kind and brave.

  • I am writing a book to record the unforgettable and adventurous pieces in my life.

  • Co-founder of Fablab Hangzhou. One of our targets is to help disabled children education via developing educational tools.