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Accurate spatiotemporal pattern analysis is critical in fields such as urban traffic, meteorology, and public health monitoring. However, existing methods face performance bottlenecks, typically yielding only incremental gains and often…

Machine Learning · Computer Science 2026-05-20 Jing Chen , Shixiang Pan , Yujie Fan , Haocheng Ye , Haitao Xu , Wenqiang Xu

Urban systems, as dynamic complex systems, continuously generate spatio-temporal data streams that encode the fundamental laws of human mobility and city evolution. While AI for Science has witnessed the transformative power of foundation…

Machine Learning · Computer Science 2026-03-03 Wei Chen , Yuqian Wu , Junle Chen , Xiaofang Zhou , Yuxuan Liang

Recent advances in transformer-based lightweight object tracking have established new standards across benchmarks, leveraging the global receptive field and powerful feature extraction capabilities of attention mechanisms. Despite these…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Junze Shi , Yang Yu , Jian Shi , Haibo Luo

Disentangled representation learning offers useful properties such as dimension reduction and interpretability, which are essential to modern deep learning approaches. Although deep learning techniques have been widely applied to…

Machine Learning · Computer Science 2022-04-11 Sichen Zhao , Wei Shao , Jeffrey Chan , Flora D. Salim

Modern cities are increasingly reliant on data-driven insights to support decision making in areas such as transportation, public safety and environmental impact. However, city-level data often exists in heterogeneous formats, collected…

Machine Learning · Computer Science 2025-12-15 Takuya Kurihana , Xiaojian Zhang , Wing Yee Au , Hon Yung Wong

In recent years, there has been a rapid development of spatio-temporal prediction techniques in response to the increasing demands of traffic management and travel planning. While advanced end-to-end models have achieved notable success in…

Machine Learning · Computer Science 2023-11-09 Zhonghang Li , Lianghao Xia , Yong Xu , Chao Huang

Federated Learning (FL) confronts a significant challenge known as data heterogeneity, which impairs model performance and convergence. Existing methods have made notable progress in addressing this issue. However, improving performance in…

Machine Learning · Computer Science 2025-10-24 Zhiqin Yang , Yonggang Zhang , Chenxin Li , Yiu-ming Cheung , Bo Han , Yixuan Yuan

With the rapid development of location based services, multimodal spatio-temporal (ST) data including trajectories, transportation modes, traffic flow and social check-ins are being collected for deep learning based methods. These deep…

Machine Learning · Computer Science 2024-07-24 Chenxing Wang

Street view imagery is extensively utilized in representation learning for urban visual environments, supporting various sustainable development tasks such as environmental perception and socio-economic assessment. However, it is…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yong Li , Yingjing Huang , Gengchen Mai , Fan Zhang

Complex multi-robot missions often require heterogeneous teams to jointly optimize task allocation, scheduling, and path planning to improve team performance under strict constraints. We formalize these complexities into a new class of…

Robotics · Computer Science 2026-01-07 Jiazhen Liu , Glen Neville , Jinwoo Park , Sonia Chernova , Harish Ravichandar

Spatial-temporal forecasting plays an important role in many real-world applications, such as traffic forecasting, air pollutant forecasting, crowd-flow forecasting, and so on. State-of-the-art spatial-temporal forecasting models take…

Machine Learning · Computer Science 2024-01-22 Xinyu Su , Jianzhong Qi , Egemen Tanin , Yanchuan Chang , Majid Sarvi

Spatio-temporal graph learning is a key method for urban computing tasks, such as traffic flow, taxi demand and air quality forecasting. Due to the high cost of data collection, some developing cities have few available data, which makes it…

Machine Learning · Computer Science 2022-06-06 Bin Lu , Xiaoying Gan , Weinan Zhang , Huaxiu Yao , Luoyi Fu , Xinbing Wang

Accurate traffic prediction is essential for optimizing transportation systems, enhancing resource allocation, and improving overall urban administration. Spatio-temporal graph neural networks (GNNs) have achieved state-of-the-art…

Machine Learning · Computer Science 2026-05-12 Qianru Zhang , Xinyi Gao , Alexander Zhou , Reynold Cheng , Siu-Ming Yiu , Hongzhi Yin

Reliable forecasting of traffic flow requires efficient modeling of traffic data. Indeed, different correlations and influences arise in a dynamic traffic network, making modeling a complicated task. Existing literature has proposed many…

Machine Learning · Computer Science 2024-02-20 Kishor Kumar Bhaumik , Fahim Faisal Niloy , Saif Mahmud , Simon Woo

Traffic flow prediction is a typical spatio-temporal prediction problem and has a wide range of applications. The core challenge lies in modeling the underlying complex spatio-temporal dependencies. Various methods have been proposed, and…

Machine Learning · Computer Science 2026-01-16 Yiqing Zou , Hanning Yuan , Qianyu Yang , Ziqiang Yuan , Shuliang Wang , Sijie Ruan

We consider a problem in Multi-Task Learning (MTL) where multiple linear models are jointly trained on a collection of datasets ("tasks"). A key novelty of our framework is that it allows the sparsity pattern of regression coefficients and…

Complex multi-objective missions require the coordination of heterogeneous robots at multiple inter-connected levels, such as coalition formation, scheduling, and motion planning. The associated challenges are exacerbated when solutions to…

Multiagent Systems · Computer Science 2024-10-17 Glen Neville , Jiazhen Liu , Sonia Chernova , Harish Ravichandar

Time-series representation learning can extract representations from data with temporal dynamics and sparse labels. When labeled data are sparse but unlabeled data are abundant, contrastive learning, i.e., a framework to learn a latent…

Machine Learning · Computer Science 2023-03-03 Heejeong Choi , Pilsung Kang

In cross-device Federated Learning (FL) environments, scaling synchronous FL methods is challenging as stragglers hinder the training process. Moreover, the availability of each client to join the training is highly variable over time due…

Machine Learning · Computer Science 2023-04-17 Tuo Zhang , Lei Gao , Sunwoo Lee , Mi Zhang , Salman Avestimehr

Spatial-Temporal Graph (STG) forecasting on large-scale networks has garnered significant attention. However, existing models predominantly focus on short-horizon predictions and suffer from notorious computational costs and memory…

Machine Learning · Computer Science 2026-01-09 Yiji Zhao , Zihao Zhong , Ao Wang , Haomin Wen , Ming Jin , Yuxuan Liang , Huaiyu Wan , Hao Wu