Jointly contrastive representation learning on road network and trajectory

Z Mao, Z Li, D Li, L Bai, R Zhao - Proceedings of the 31st ACM …, 2022 - dl.acm.org
Road network and trajectory representation learning are essential for traffic systems since
the learned representation can be directly used in various downstream tasks (eg, traffic …

Dynamic causal graph convolutional network for traffic prediction

J Lin, Z Li, Z Li, L Bai, R Zhao… - 2023 IEEE 19th …, 2023 - ieeexplore.ieee.org
Modeling complex spatiotemporal dependencies in correlated traffic series is essential for
traffic prediction. While recent works have shown improved prediction performance by using …

Individualized passenger travel pattern multi-clustering based on graph regularized tensor latent dirichlet allocation

Z Li, H Yan, C Zhang, F Tsung - Data Mining and Knowledge Discovery, 2022 - Springer
Individual passenger travel patterns have significant value in understanding passenger's
behavior, such as learning the hidden clusters of locations, time, and passengers. The …

Correlated time series self-supervised representation learning via spatiotemporal bootstrap**

L Wang, L Bai, Z Li, R Zhao… - 2023 IEEE 19th …, 2023 - ieeexplore.ieee.org
Correlated time series analysis plays an important role in many real-world industries.
Learning an efficient representation of this large-scale data for further downstream tasks is …

Mm-dag: Multi-task dag learning for multi-modal data-with application for traffic congestion analysis

T Lan, Z Li, Z Li, L Bai, M Li, F Tsung, W Ketter… - Proceedings of the 29th …, 2023 - dl.acm.org
This paper proposes to learn Multi-task, Multi-modal Direct Acyclic Graphs (MM-DAGs),
which are commonly observed in complex systems, eg, traffic, manufacturing, and weather …

Low-rank robust subspace tensor clustering for metro passenger flow modeling

ND Sergin, J Hu, Z Li, C Zhang… - INFORMS Journal on …, 2024 - pubsonline.informs.org
Tensor clustering has become an important topic, specifically in spatiotemporal modeling,
because of its ability to cluster spatial modes (eg, stations or road segments) and temporal …

Adaptive hierarchical spatiotemporal network for traffic forecasting

Y Chen, Z Li, W Ouyang… - 2023 IEEE 19th …, 2023 - ieeexplore.ieee.org
Accurate traffic forecasting is vital to intelligent transportation systems, which are widely
adopted to solve urban traffic issues. Existing traffic forecasting studies focus on modeling …

A unified probabilistic framework for spatiotemporal passenger crowdedness inference within urban rail transit network

M Jiang, A Wang, Z Li, F Tsung - 2023 IEEE 19th International …, 2023 - ieeexplore.ieee.org
This paper proposes the Spatio-Temporal Crowdedness Inference Model (STCIM), a
framework to infer the passenger distribution inside the whole urban rail transit (URT) …

VisionTraj: A Noise-Robust Trajectory Recovery Framework based on Large-scale Camera Network

Z Li, Z Li, X Hu, G Du, Y Nie, F Zhu, L Bai… - arxiv preprint arxiv …, 2023 - arxiv.org
Trajectory recovery based on the snapshots from the city-wide multi-camera network
facilitates urban mobility sensing and driveway optimization. The state-of-the-art solutions …

Tensor Dirichlet process multinomial mixture model for passenger trajectory clustering

Z Li, H Yan, C Zhang, A Wang, W Ketter, L Sun… - arxiv preprint arxiv …, 2023 - arxiv.org
Passenger clustering based on travel records is essential for transportation operators.
However, existing methods cannot easily cluster the passengers due to the hierarchical …