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Encrypted traffic classification is receiving widespread attention from researchers and industrial companies. However, the existing methods only extract flow-level features, failing to handle short flows because of unreliable statistical…

机器学习 · 计算机科学 2023-08-01 Haozhen Zhang , Le Yu , Xi Xiao , Qing Li , Francesco Mercaldo , Xiapu Luo , Qixu Liu

Modeling the traffic dynamics is essential for understanding and predicting the traffic spatiotemporal evolution. However, deriving the partial differential equation (PDE) models that capture these dynamics is challenging due to their…

系统与控制 · 电气工程与系统科学 2025-05-05 Zihang Wei , Yunlong Zhang , Chenxi Liu , Yang Zhou

This paper proposes a graph-based approach to representing spatio-temporal trajectory data that allows an effective visualization and characterization of city-wide traffic dynamics. With the advance of sensor, mobile, and Internet of Things…

机器学习 · 计算机科学 2022-12-07 Jiwon Kim , Kai Zheng , Jonathan Corcoran , Sanghyung Ahn , Marty Papamanolis

Most optimal routing problems focus on minimizing travel time or distance traveled. Oftentimes, a more useful objective is to maximize the probability of on-time arrival, which requires statistical distributions of travel times, rather than…

Graph similarity computation aims to predict a similarity score between one pair of graphs to facilitate downstream applications, such as finding the most similar chemical compounds similar to a query compound or Fewshot 3D Action…

机器学习 · 计算机科学 2021-01-06 Haoyan Xu , Ziheng Duan , Jie Feng , Runjian Chen , Qianru Zhang , Zhongbin Xu , Yueyang Wang

We propose a simple discrete time semi-supervised graph embedding approach to link prediction in dynamic networks. The learned embedding reflects information from both the temporal and cross-sectional network structures, which is performed…

机器学习 · 统计学 2016-10-17 Ryohei Hisano

Prior art in traffic incident detection relies on high sensor coverage and is primarily based on decision-tree and random forest models that have limited representation capacity and, as a result, cannot detect incidents with high accuracy.…

机器学习 · 计算机科学 2024-08-05 Sai Shashank Peddiraju , Kaustubh Harapanahalli , Edward Andert , Aviral Shrivastava

Access to quality travel time information for roads in a road network has become increasingly important with the rising demand for real-time travel time estimation for paths within road networks. In the context of the Danish road network…

机器学习 · 计算机科学 2021-03-02 Jakob Meldgaard Kjær , Lasse Kristensen , Mads Alberg Christensen

It is important, but challenging, for the forest industry to accurately map roads which are used for timber transport by trucks. In this work, we propose a Dense Dilated Convolutions Merging Network (DDCM-Net) to detect these roads in lidar…

计算机视觉与模式识别 · 计算机科学 2019-09-11 Qinghui Liu , Michael Kampffmeyer , Robert Jenssen , Arnt-Børre Salberg

Traffic incident detection plays a key role in intelligent transportation systems, which has gained great attention in transport engineering. In the past, traditional machine learning (ML) based detection methods achieved good performance…

机器学习 · 计算机科学 2024-02-29 Qiyuan Zhu , A. K. Qin , Prabath Abeysekara , Hussein Dia , Hanna Grzybowska

Network tomography plays a crucial role in assessing the operational status of internal links within networks through end-to-end path-level measurements, independently of cooperation from the network infrastructure. However, the accuracy of…

网络与互联网体系结构 · 计算机科学 2024-12-17 Chengze Du , Zhiwei Yu , Xiangyu Wang

Subgraph matching is a core task in graph analytics, widely used in domains such as biology, finance, and social networks. Existing top-k diversified methods typically focus on maximizing vertex coverage, but often return results in the…

数据库 · 计算机科学 2025-11-25 Liuyi Chen , Yuchen Hu , Zhengyi Yang , Xu Zhou , Wenjie Zhang , Kenli Li

The fast-growing amount of traffic data brings many opportunities for revealing more insightful information about traffic dynamics. However, it also demands an effective database management system in which information retrieval is arguably…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Tin T. Nguyen , Simeon C. Calvert , Guopeng Li , Hans van Lint

Recent endeavors aimed at forecasting future traffic flow states through deep learning encounter various challenges and yield diverse outcomes. A notable obstacle arises from the substantial data requirements of deep learning models, a…

机器学习 · 计算机科学 2024-04-02 Zhaohui Yang , Kshitij Jerath

With the process of urbanization and the rapid growth of population, the issue of traffic congestion has become an increasingly critical concern. Intelligent transportation systems heavily rely on real-time and precise prediction algorithms…

人工智能 · 计算机科学 2025-01-03 Zihao Jing

Accurate traffic prediction is crucial to the guidance and management of urban traffics. However, most of the existing traffic prediction models do not consider the computational burden and memory space when they capture spatial-temporal…

机器学习 · 计算机科学 2021-03-11 Xuran Xu , Tong Zhang , Chunyan Xu , Zhen Cui , Jian Yang

Traffic forecasting is crucial for urban traffic management and guidance. However, existing methods rarely exploit the time-frequency properties of traffic speed observations, and often neglect the propagation of traffic flows from upstream…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Na Zhang , Xuefeng Guan , Jun Cao , Xinglei Wang , Huayi Wu

Accurate and real-time traffic state prediction is of great practical importance for urban traffic control and web mapping services. With the support of massive data, deep learning methods have shown their powerful capability in capturing…

机器学习 · 计算机科学 2023-09-07 Xunlian Luo , Chunjiang Zhu , Detian Zhang , Qing Li

Due to the enormous requirement in public security and intelligent transportation system, searching an identical vehicle has become more and more important. Current studies usually treat vehicle as an integral object and then train a…

计算机视觉与模式识别 · 计算机科学 2019-11-12 Ya Sun , Minxian Li , Jianfeng Lu

This paper presents a machine-learning-enhanced longitudinal scanline method to extract vehicle trajectories from high-angle traffic cameras. The Dynamic Mode Decomposition (DMD) method is applied to extract vehicle strands by decomposing…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Tianya T. Zhang , Peter J. Jin