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arXiv 2312.16596cs.LG
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利用异常值加权自编码器增强交通流预测:处理实时变化

Enhancing Traffic Flow Prediction using Outlier-Weighted AutoEncoders: Handling Real-Time Changes

Eindhoven University of Technology(埃因霍温理工大学)

Himanshu Choudhary, Marwan Hassani

AI总结:

针对交通异常和实时变化,提出OWAM框架,利用自编码器检测异常并生成相关性分数加权邻近传感器数据,实现高效准确的实时交通流预测。

摘要:

在当今的城市景观中,交通拥堵构成了一个严峻的挑战,尤其是在异常场景下。这些异常值可能表明交通流量的突然峰值、下降或不规则趋势,通常由事故、事件或道路施工等因素引起。此外,鉴于交通的动态特性,实时交通建模的需求也变得至关重要,以确保准确和最新的交通预测。为了解决这些挑战,我们引入了异常值加权自编码器建模(OWAM)框架。OWAM采用自编码器进行局部异常检测,并生成相关性分数来评估邻近交通的影响。这些分数在融合到模型之前,作为邻近传感器的加权因子。这一信息增强了交通模型的性能,并支持有效的实时更新,这是捕捉动态交通模式的关键方面。OWAM在准确性和效率之间展示了有利的权衡,使其非常适合实际应用。研究成果显著促进了更高效和自适应交通预测模型的发展,推动了未来交通管理领域的进步。我们的框架的代码和数据集可在https://github.com/himanshudce/OWAM公开获取。

英文摘要:

In today's urban landscape, traffic congestion poses a critical challenge, especially during outlier scenarios. These outliers can indicate abrupt traffic peaks, drops, or irregular trends, often arising from factors such as accidents, events, or roadwork. Moreover, Given the dynamic nature of traffic, the need for real-time traffic modeling also becomes crucial to ensure accurate and up-to-date traffic predictions. To address these challenges, we introduce the Outlier Weighted Autoencoder Modeling (OWAM) framework. OWAM employs autoencoders for local outlier detection and generates correlation scores to assess neighboring traffic's influence. These scores serve as a weighted factor for neighboring sensors, before fusing them into the model. This information enhances the traffic model's performance and supports effective real-time updates, a crucial aspect for capturing dynamic traffic patterns. OWAM demonstrates a favorable trade-off between accuracy and efficiency, rendering it highly suitable for real-world applications. The research findings contribute significantly to the development of more efficient and adaptive traffic prediction models, advancing the field of transportation management for the future. The code and datasets of our framework is publicly available under https://github.com/himanshudce/OWAM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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