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Effective and efficient task planning is essential for mobile robots, especially in applications like warehouse retrieval and environmental monitoring. These tasks often involve selecting one location from each of several target clusters,…

Artificial Intelligence · Computer Science 2026-03-23 Jiaqi Cheng , Mingfeng Fan , Xuefeng Zhang , Jingsong Liang , Yuhong Cao , Guohua Wu , Guillaume Adrien Sartoretti

Software systems can be represented as graphs, capturing dependencies among functions and processes. An interesting aspect of software systems is that they can be represented as different types of graphs, depending on the extraction goals…

Machine Learning · Computer Science 2025-10-14 Kartikeya Aneja , Nagender Aneja , Murat Kantarcioglu

With recent advances in sensing technologies, a myriad of spatio-temporal data has been generated and recorded in smart cities. Forecasting the evolution patterns of spatio-temporal data is an important yet demanding aspect of urban…

Machine Learning · Computer Science 2023-11-27 Guangyin Jin , Yuxuan Liang , Yuchen Fang , Zezhi Shao , Jincai Huang , Junbo Zhang , Yu Zheng

Multivariate time-series forecasting plays a crucial role in many real-world applications. It is a challenging problem as one needs to consider both intra-series temporal correlations and inter-series correlations simultaneously. Recently,…

Machine Learning · Computer Science 2021-03-16 Defu Cao , Yujing Wang , Juanyong Duan , Ce Zhang , Xia Zhu , Conguri Huang , Yunhai Tong , Bixiong Xu , Jing Bai , Jie Tong , Qi Zhang

The past few years has witnessed the dominance of Graph Convolutional Networks (GCNs) over human motion prediction.Various styles of graph convolutions have been proposed, with each one meticulously designed and incorporated into a…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Xinshun Wang , Qiongjie Cui , Chen Chen , Mengyuan Liu

Many real-world graphs (networks) are heterogeneous with different types of nodes and edges. Heterogeneous graph embedding, aiming at learning the low-dimensional node representations of a heterogeneous graph, is vital for various…

Social and Information Networks · Computer Science 2021-12-15 Wentao Xu , Yingce Xia , Weiqing Liu , Jiang Bian , Jian Yin , Tie-Yan Liu

Traditional traffic prediction, limited by the scope of sensor data, falls short in comprehensive traffic management. Mobile networks offer a promising alternative using network activity counts, but these lack crucial directionality. Thus,…

Machine Learning · Computer Science 2024-05-29 ChungYi Lin , Shen-Lung Tung , Hung-Ting Su , Winston H. Hsu

User mobility trajectory and mobile traffic data are essential for a wide spectrum of applications including urban planning, network optimization, and emergency management. However, large-scale and fine-grained mobility data remains…

Networking and Internet Architecture · Computer Science 2025-10-14 Ziyi Liu , Qingyue Long , Zhiwen Xue , Huandong Wang , Yong Li

This paper proposes a learning model, based on rank-fusion graphs, for general applicability in multimodal prediction tasks, such as multimodal regression and image classification. Rank-fusion graphs encode information from multiple…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Icaro Cavalcante Dourado , Salvatore Tabbone , Ricardo da Silva Torres

Understanding human activity is a crucial aspect of developing intelligent robots, particularly in the domain of human-robot collaboration. Nevertheless, existing systems encounter challenges such as over-segmentation, attributed to errors…

Robotics · Computer Science 2024-10-11 Hao Xing , Darius Burschka

In this work, a deep learning approach has been developed to carry out road detection by fusing LIDAR point clouds and camera images. An unstructured and sparse point cloud is first projected onto the camera image plane and then upsampled…

Computer Vision and Pattern Recognition · Computer Science 2018-09-24 Luca Caltagirone , Mauro Bellone , Lennart Svensson , Mattias Wahde

In recent years, traffic flow prediction has played a crucial role in the management of intelligent transportation systems. However, traditional forecasting methods often model non-Euclidean low-dimensional traffic data as a simple graph…

Machine Learning · Computer Science 2025-01-08 Mei Wu , Yiqian Lin , Tianfan Jiang , Wenchao Weng

Data mining in transportation networks (DMTNs) refers to using diverse types of spatio-temporal data for various transportation tasks, including pattern analysis, traffic prediction, and traffic controls. Graph neural networks (GNNs) are…

Machine Learning · Computer Science 2025-01-29 Jiawei Xue , Ruichen Tan , Jianzhu Ma , Satish V. Ukkusuri

Real-time and precise traffic flow prediction is vital for the efficiency of intelligent transportation systems. Traditional methods often employ graph neural networks (GNNs) with predefined graphs to describe spatial correlations among…

Machine Learning · Computer Science 2024-06-18 Ben-Ao Dai , Bao-Lin Ye , Lingxi Li

Human activity recognition (HAR) through wearable devices has received much interest due to its numerous applications in fitness tracking, wellness screening, and supported living. As a result, we have seen a great deal of work in this…

Machine Learning · Computer Science 2022-06-13 Nafees Ahmad , Savio Ho-Chit Chow , Ho-fung Leung

The ability to identify and temporally segment fine-grained actions in motion capture sequences is crucial for applications in human movement analysis. Motion capture is typically performed with optical or inertial measurement systems,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Benjamin Filtjens , Bart Vanrumste , Peter Slaets

By interpreting a traffic scene as a graph of interacting vehicles, we gain a flexible abstract representation which allows us to apply Graph Neural Network (GNN) models for traffic prediction. These naturally take interaction between…

Machine Learning · Computer Science 2019-05-08 Frederik Diehl , Thomas Brunner , Michael Truong Le , Alois Knoll

Graph Neural Networks (GNNs) have demonstrated impressive performance across diverse graph-based tasks by leveraging message passing to capture complex node relationships. However, on large-scale real-world graphs, GNNs face two major…

Machine Learning · Computer Science 2026-03-10 Xiang Li , Jianpeng Qi , Haobing Liu , Yuan Cao , Guoqing Chao , Zhongying Zhao , Junyu Dong , Xinwang Liu , Yanwei Yu

This work presents a unified, fully differentiable model for multi-people tracking that learns to associate detections into trajectories without relying on pre-computed tracklets. The model builds a dynamic spatiotemporal graph that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Martin Engilberge , Ivan Vrkic , Friedrich Wilke Grosche , Julien Pilet , Engin Turetken , Pascal Fua

Traffic speed forecasting is an important task in intelligent transportation system management. The objective of much of the current computational research is to minimize the difference between predicted and actual speeds, but information…

Machine Learning · Computer Science 2024-07-17 Yuanjie Lu , Amarda Shehu , David Lattanzi