PURP: A Scalable System for Predicting Short-Term Urban Traffic Flow Based on License Plate Recognition Data

IF 7.7 1区 计算机科学 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
Shan Zhang;Qinkai Jiang;Hao Li;Bin Cao;Jing Fan
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引用次数: 0

Abstract

Accurate and efficient urban traffic flow prediction can help drivers identify road traffic conditions in real-time, consequently helping them avoid congestion and accidents to a certain extent. However, the existing methods for real-time urban traffic flow prediction focus on improving the model prediction accuracy or efficiency while ignoring the training efficiency, which results in a prediction system that lacks the scalability to integrate real-time traffic flow into the training procedure. To conduct accurate and real-time urban traffic flow prediction while considering the latest historical data and avoiding time-consuming online retraining, herein, we propose a scalable system for Predicting short-term URban traffic flow in real-time based on license Plate recognition data (PURP). First, to ensure prediction accuracy, PURP constructs the spatio-temporal contexts of traffic flow prediction from License Plate Recognition (LPR) data as effective characteristics. Subsequently, to utilize the recent data without retraining the model online, PURP uses the nonparametric method k-Nearest Neighbor (namely KNN) as the prediction framework because the KNN can efficiently identify the top-k most similar spatio-temporal contexts and make predictions based on these contexts without time-consuming model retraining online. The experimental results show that PURP retains strong prediction efficiency as the prediction period increases.
PURP: 基于车牌识别数据预测短期城市交通流量的可扩展系统
准确高效的城市交通流量预测可以帮助驾驶员实时识别道路交通状况,从而在一定程度上帮助驾驶员避免拥堵和事故。然而,现有的城市交通流量实时预测方法只注重提高模型预测精度或效率,而忽视了训练效率,导致预测系统缺乏可扩展性,无法将实时交通流量纳入训练过程。为了在考虑最新历史数据的同时进行准确、实时的城市交通流量预测,避免耗时的在线再训练,我们在本文中提出了一种可扩展的基于车牌识别数据的短期URban交通流量实时预测系统(PURP)。首先,为确保预测的准确性,PURP 从车牌识别(LPR)数据中构建了交通流量预测的时空背景,作为有效特征。随后,为了利用近期数据而无需在线重新训练模型,PURP 使用非参数方法 k-近邻(即 KNN)作为预测框架,因为 KNN 可以有效识别前 k 个最相似的时空背景,并基于这些背景进行预测,而无需耗时的在线模型重新训练。实验结果表明,随着预测周期的延长,PURP 仍能保持较高的预测效率。
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来源期刊
Big Data Mining and Analytics
Big Data Mining and Analytics Computer Science-Computer Science Applications
CiteScore
20.90
自引率
2.20%
发文量
84
期刊介绍: Big Data Mining and Analytics, a publication by Tsinghua University Press, presents groundbreaking research in the field of big data research and its applications. This comprehensive book delves into the exploration and analysis of vast amounts of data from diverse sources to uncover hidden patterns, correlations, insights, and knowledge. Featuring the latest developments, research issues, and solutions, this book offers valuable insights into the world of big data. It provides a deep understanding of data mining techniques, data analytics, and their practical applications. Big Data Mining and Analytics has gained significant recognition and is indexed and abstracted in esteemed platforms such as ESCI, EI, Scopus, DBLP Computer Science, Google Scholar, INSPEC, CSCD, DOAJ, CNKI, and more. With its wealth of information and its ability to transform the way we perceive and utilize data, this book is a must-read for researchers, professionals, and anyone interested in the field of big data analytics.
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