Selected Publications

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The selected papers are listed below in reverse chronological order in which they appeared online, please check out Google Scholar for the full list. These papers have been published in top-tier scientific journals in the interdisplinary areas of Data Science, Machine Learning, Optimization, and Transportation, including IEEE Transactions on Knowledge and Data Engineering, IEEE Transactions on Pattern Analysis and Machine Intelligence, INFORMS Journal on Computing, and Transportation Science.

Preprint (2025+)

• Interpretable time series autoregression for periodicity quantification
  arXiv preprint arXiv:2506.22895
  Xinyu Chen, Vassilis Digalakis Jr, Lijun Ding, Dingyi Zhuang, Jinhua Zhao
  [PDF] [Slides] [Annotation slides] [Data]

2025

• Dynamic autoregressive tensor factorization for pattern discovery of spatiotemporal systems
  IEEE Transactions on Pattern Analysis and Machine Intelligence, 2025, 47 (10):8524-8537.
  Xinyu Chen, Dingyi Zhuang, HanQin Cai, Shenhao Wang, Jinhua Zhao
  [PDF] [Slides] [OPP explanation]

• Correlating time series with interpretable convolutional kernels
  IEEE Transactions on Knowledge and Data Engineering, 2025, 37 (6): 3272-3283.
  Xinyu Chen, HanQin Cai, Fuqiang Liu, Jinhua Zhao
  [PDF] [Blog post] [Data & Python code]

• Forecasting sparse movement speed of urban road networks with nonstationary temporal matrix factorization
  Transportation Science, 2025, 59 (3): 670-687.
  Xinyu Chen [✉️], Chengyuan Zhang, Xi-Le Zhao, Nicolas Saunier, Lijun Sun
  [PDF] [Slides] [Data & Python code]

2024

• Forecasting urban traffic states with sparse data using Hankel temporal matrix factorization
  INFORMS Journal on Computing, 2024, 37 (4): 945-961.
  Xinyu Chen, Xi-Le Zhao, Chun Cheng
  [PDF] [Data & Python code]

• Laplacian convolutional representation for traffic time series imputation
  IEEE Transactions on Knowledge and Data Engineering, 2024, 36 (11): 6490-6502.
  Xinyu Chen, Zhanhong Cheng, HanQin Cai, Nicolas Saunier, Lijun Sun
  [PDF] [Slides] [Blog post] [Data & Python code]

• Discovering dynamic patterns from spatiotemporal data with time-varying low-rank autoregression
  IEEE Transactions on Knowledge and Data Engineering, 2024, 36 (2): 504-517.
  Xinyu Chen, Chengyuan Zhang, Xiaoxu Chen, Nicolas Saunier, Lijun Sun
  [PDF] [Data & Python code] [Blog post]

2022

• Bayesian temporal factorization for multidimensional time series prediction
  IEEE Transactions on Pattern Analysis and Machine Intelligence, 2022, 44 (9): 4659-4673.
  Xinyu Chen, Lijun Sun
  [Preprint] [Slides] [Data & Python code] 300+ citations
  

• Low-rank autoregressive tensor completion for spatiotemporal traffic data imputation
  IEEE Transactions on Intelligent Transportation Systems, 2022, 23 (8): 12301-12310.
  Xinyu Chen, Mengying Lei, Nicolas Saunier, Lijun Sun
  [Preprint] [Data & Python code] [Toy example] 100+ citations

2021

• Scalable low-rank tensor learning for spatiotemporal traffic data imputation
  Transportation Research Part C: Emerging Technologies, 2021, 129: 103226.
  Xinyu Chen, Yixian Chen, Nicolas Saunier, Lijun Sun
  [Preprint] [Data] [Python code]

2020

• A nonconvex low-rank tensor completion model for spatiotemporal traffic data imputation
  Transportation Research Part C: Emerging Technologies, 2020, 117: 102673.
  Xinyu Chen, Jinming Yang, Lijun Sun
  [Preprint] [Data & Python code] 200+ citations

2019

• Missing traffic data imputation and pattern discovery with a Bayesian augmented tensor factorization model
  Transportation Research Part C: Emerging Technologies, 2019, 104: 66-77.
  Xinyu Chen, Zhaocheng He, Yixian Chen, Yuhuan Lu, Jiawei Wang
  [Slides] [Data] [Matlab code] 100+ citations

• A Bayesian tensor decomposition approach for spatiotemporal traffic data imputation
  Transportation Research Part C: Emerging Technologies, 2019, 98: 73-84.
  Xinyu Chen, Zhaocheng He, Lijun Sun
  [Data] [Matlab code] [Python code] 400+ citations

2018

• Spatial-temporal traffic speed patterns discovery and incomplete data recovery via SVD-combined tensor decomposition
  Transportation Research Part C: Emerging Technologies, 2018, 86: 59-77.
  Xinyu Chen, Zhaocheng He, Jiawei Wang
  [Data] 100+ citations