Junru Zhang · Academic Homepage

01 About

Researching intelligent models for real-world time series.

I am currently pursuing my final-year Ph.D. in the Department of Computer Science and Technology at Zhejiang University, where I began my program in the fall of 2021. I am fortunate to be under the supervision of Prof. Duanqing Xu and Prof. Yabo Dong. Moreover, I am currently visiting the College of Computing and Data Science at Nanyang Technological University, under the supervision of Prof. Han Yu (since December 2024).

My primary research interests lie in sensor-based time-series data mining (e.g., EEG, ECG, and human activity recognition), with a focus on developing large language models (LLMs) for time-series analysis, generative modeling, federated learning, and transfer learning.

02 Research

Preprint · * co-first

Current work

Multimodal LLMs · Reinforcement Learning

TimeMaster: Training Time-Series Multimodal LLMs to Reason via Reinforcement Learning

Junru Zhang*, Lang Feng*, Xu Guo, Yuhan Wu, Yabo Dong, Duanqing Xu

Paper Code

03 Publications

Selected Publications

* co-first · † corresponding

KDD · Oral2026 · CCF A

Federated Domain Generalization for Time-Series Classification via Dynamics-to-Domain Generation

Haoran Shi*, Junru Zhang*†, Xiaoli Tang, Yifei Zhang, Hao Zhu, Yabo Dong, Lizhen Cui, Han Yu

Paper

ICML2026 · CCF A

AnomSeer: Reinforcing Multimodal LLMs to Reason for Time-Series Anomaly Detection

Junru Zhang, Lang Feng, Haoran Shi, Xu Guo, Han Yu, Yabo Dong, Duanqing Xu

Paper Code

WWW · Oral2026 · CCF A

FedDiG: Frequency-Guided Diffusion Diversity for Generalizable Federated Time Series Classification

Haoran Shi*, Junru Zhang*†, Cheng Peng, Xiaoli Tang, Longtao Huang, Han Yu

Paper

ACL · Oral2026 · CCF A

A Unified Framework for Modeling Heterogeneous Financial Data via Dual-Granularity Prompting

Yu Lei, Zixuan Wang, Yiqing Feng, Junru Zhang, Yahui Li, Liu Chu, Tongyao Wang, Dongyang Li

Paper

KDD · Oral2025 · CCF A

Diffusion-Guided Diversity for Single Domain Generalization in Time Series Classification

Junru Zhang, Lang Feng, Xu Guo, Han Yu, Yabo Dong, Duanqing Xu

Paper Code

IEEE Transactions on Mobile Computing2025 · CCF A

DI2SDiff++: Activity Style Decomposition and Diffusion-Based Fusion for Cross-Person Generalization in Activity Recognition

Junru Zhang, Cheng Peng, Zhidan Liu, Lang Feng, Yabo Dong, Duanqing Xu

Paper

KDD · Oral2024 · CCF A

Diverse Intra- and Inter-Domain Activity Style Fusion for Cross-Person Generalization in Activity Recognition

Junru Zhang, Lang Feng, Zhidan Liu, Yuhan Wu, Yang He, Yabo Dong, Duanqing Xu

Paper Code

CIKM · Oral2023 · CCF B

Temporal Convolutional Explorer Helps Understand 1D-CNN's Learning Behavior in Time Series Classification from Frequency Domain

Junru Zhang, Lang Feng, Yang He, Yuhan Wu, Yang He, Yabo Dong

Paper Code

ECML-PKDD · Oral2023 · CCF B

Adacket: ADAptive Convolutional KErnel Transform for Multivariate Time Series Classification

Junru Zhang, Lang Feng, Haowen Zhang, Yuhan Wu, Yabo Dong

Paper Code

For a complete list of publications, please refer to my Google Scholar profile .

04 Service

Academic Services

Program Committee (PC) Member

ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) 2025
AAAI Conference on Artificial Intelligence (AAAI) 2025
IEEE International Conference on Multimedia and Expo (ICME) 2025
ACM International Conference on Information and Knowledge Management (CIKM) 2024

Reviewer

IEEE Transactions on Knowledge and Data Engineering (TKDE)
ACM Transactions on Knowledge Discovery from Data (TKDD)
IEEE Transactions on Industrial Informatics (TII)
IEEE Transactions on Neural Networks and Learning Systems (TNNLS)