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Geospatial Data to Images: A Deep-Learning Framework for Traffic Forecasting
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Abstract
Traffic forecasting has been an active research field in recent decades, and with the development of deep-learning technologies, researchers are trying to utilize deep learning to achieve tremendous improvements in traffic forecasting, as it has been seen in other research areas, such as speech recognition and image classification. In this study, we summarize recent works in which deep-learning methods were applied for geospatial data-based traffic forecasting problems. Based on the insights from previous works, we further propose a deep-learning framework, which transforms geospatial data to images, and then utilizes the state-of-the-art deep-learning methodologies such as Convolutional Neural Network (CNN) and residual networks. To demonstrate the simplicity and effectiveness of our framework, we present a formulation of the New York taxi pick-up/drop-off forecasting problem, and show that our framework significantly outperforms traditional methods, including Historical Average (HA) and AutoRegressive Integrated Moving Average (ARIMA).
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Lin Zhang received the BSc, MSc, and PhD degrees from Tsinghua University, China, in 1998, 2001, and 2006, respectively. He is currently an associate professor in the Department of Electronic Engineering, Tsinghua University and an associate co-director with Tsinghua-Berkeley Shenzhen Institute. He is a recipient of IEEE/ACM IPSN Best Demo Award, 2014, IEEE CASE, Best Application Paper Award, 2013, etc. He has published more than 20 journal and conference papers. His research interests include efficient protocols for sensor networks, statistical learning and data mining algorithms for sensory data processing, and information theory.
Weiwei Jiang received the BSc degree from Tsinghua University, China, in 2013. He is currently pursuing PhD degree in the same affiliation. He has published three conference papers before. His research interests include ridesharing service, incentive mechanism design, and behavior analysis in intelligent transportation system.