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Traffic congestion is a persistent problem in our society. Previous methods for traffic control have proven futile in alleviating current congestion levels leading researchers to explore ideas with robot vehicles given the increased…

Multiagent Systems · Computer Science 2024-02-06 Michael Villarreal , Bibek Poudel , Jia Pan , Weizi Li

Despite the importance of fundamental parameters (traffic flow, density and speed) to describe the traffic behavior, there still are some difficulties in order to obtain and store this information. Furthermore, given the type of study or…

Signal Processing · Electrical Eng. & Systems 2020-06-16 E. R. Ribeiro , A. L. Cunha

Sampling and interpolation have been extensively studied, in order to reconstruct or estimate the entire graph signal from the signal values on a subset of vertexes, of which most achievements are about continuous signals. While in a lot of…

Signal Processing · Electrical Eng. & Systems 2021-09-28 Wenwei Liu , Hui Feng , Kaixuan Wang , Feng Ji , Bo Hu

We propose a penalized pseudo-likelihood criterion to estimate the graph of conditional dependencies in a discrete Markov random field that can be partially observed. We prove the convergence of the estimator in the case of a finite or…

Methodology · Statistics 2022-09-05 Florencia Leonardi , Rodrigo R. S. Carvalho

Complex networks datasets often come with the problem of missing information: interactions data that have not been measured or discovered, may be affected by errors, or are simply hidden because of privacy issues. This Element provides an…

Physics and Society · Physics 2021-08-11 Giulio Cimini , Rossana Mastrandrea , Tiziano Squartini

In this article, we present a method to reconstruct the topology of a partially observed radial network of linear dynamical systems with bi-directional interactions. Our approach exploits the structure of the inverse power spectral density…

Systems and Control · Computer Science 2018-07-13 Saurav Talukdar , Deepjyoti Deka , Michael Chertkov , Murti Salapaka

A wide variety of sensor technologies are recently being adopted for traffic monitoring applications. Since most of these technologies rely on wired infrastructure, the installation and maintenance costs limit the deployment of the traffic…

Networking and Internet Architecture · Computer Science 2023-03-17 Halit Bugra Tulay , Can Emre Koksal

We propose a model-free reinforcement learning method for controlling mixed autonomy traffic in simulated traffic networks with through-traffic-only two-way and four-way intersections. Our method utilizes multi-agent policy decomposition…

Artificial Intelligence · Computer Science 2021-11-09 Zhongxia Yan , Cathy Wu

Recovery of internet network traffic data from incomplete observed data is an important issue in internet network engineering and management. In this paper, by fully combining the temporal stability and periodicity features in internet…

Numerical Analysis · Mathematics 2020-05-25 Chen Ling , Gaohang Yu , Liqun Qi , Yanwei Xu

Roads are an essential mode of transportation, and maintaining them is critical to economic growth and citizen well-being. With the continued advancement of AI, road surface inspection based on camera images has recently been extensively…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Linh Trinh , Ali Anwar , Siegfried Mercelis

Urbanization leads to an increase of traffic in cities. The Macroscopic Fundamental Diagram (MFD) suggests to describe urban traffic at a zonal level, in order to measure and control traffic. However, for a proper estimation, all data needs…

Physics and Society · Physics 2020-02-14 Victor L. Knoop , Marianthi Mermygka , Hans van Lint

To address the problem that traditional network traffic anomaly detection algorithms do not suffi-ciently mine potential features in long time domain, an anomaly detection method based on mul-ti-scale residual features of network traffic is…

Networking and Internet Architecture · Computer Science 2022-05-10 Xueyuan Duan , Yu Fu , Kun Wang

We address the inverse problem of reconstructing both the structure and dynamics of a network from mean-field measurements, which are linear combinations of node states. This setting arises in applications where only a few aggregated…

Dynamical Systems · Mathematics 2025-11-04 Narcicegi Kiran , Tiago Pereira

Understanding human mobility is an important aspect of traffic analysis and urban planning. Trajectories provide detailed views on specific routes, but typically do not capture all traffic. Loop detectors capture all traffic flow at…

Computational Geometry · Computer Science 2020-12-10 Bram Custers , Wouter Meulemans , Bettina Speckmann , Kevin Verbeek

The simulation of traffic flow on networks requires knowledge on the behavior across traffic intersections. For macroscopic models based on hyperbolic conservation laws there exist nowadays many ad-hoc models describing this behavior. Based…

Numerical Analysis · Mathematics 2023-08-21 Michael Herty , Niklas Kolbe

Accurate traffic prediction is a key ingredient to enable traffic management like rerouting cars to reduce road congestion or regulating traffic via dynamic speed limits to maintain a steady flow. A way to represent traffic data is in the…

Machine Learning · Computer Science 2022-08-30 Luca Hermes , Barbara Hammer , Andrew Melnik , Riza Velioglu , Markus Vieth , Malte Schilling

Understanding human mobility patterns is crucial for urban planning, transportation management, and public health. This study tackles two primary challenges in the field: the reliance on trajectory data, which often fails to capture the…

Machine Learning · Computer Science 2024-10-08 Xishun Liao , Yifan Liu , Chenchen Kuai , Haoxuan Ma , Yueshuai He , Shangqing Cao , Chris Stanford , Jiaqi Ma

Non-recurrent and unpredictable traffic events directly influence road traffic conditions. There is a need for dynamic monitoring and prediction of these unpredictable events to improve road network management. The problem with the existing…

Computation and Language · Computer Science 2022-01-11 Yasaswi Sri Chandra Gandhi Kilaru , Indrajit Ghosh

This paper considers the problem of inferring the structure of a network from indirect observations. Each observation (a "trace") is the unordered set of nodes which are activated along a path through the network. Since a trace does not…

Data Structures and Algorithms · Computer Science 2013-01-30 Vincent Gripon , Michael Rabbat

Automatic Extraction of road network from satellite images is a goal that can benefit and even enable new technologies. Methods that combine machine learning (ML) and computer vision have been proposed in recent years which make the task…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Tamal K. Dey , Jiayuan Wang , Yusu Wang
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