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FADACS: A Few-shot Adversarial Domain Adaptation Architecture for Context-Aware Parking Availability Sensing

2020-07-13 08:25:26
Wei Shao, Sichen Zhao, Zhen Zhang, Shiyu Wang, Mohammad Saiedur Rahaman, Andy Song, Flora Dilys Salim

Abstract

The existing research on parking availability sensing mainly relies on extensive contextual and historical information. In practice, it is challenging to have such information available as it requires continuous collection of sensory signals. In this paper, we design an end-to-end transfer learning framework for parking availability sensing to predict the parking occupancy in areas where the parking data is insufficient to feed into data-hungry models. This framework overcomes two main challenges: 1) many real-world cases cannot provide enough data for most existing data-driven models. 2) it is difficult to merge sensor data and heterogeneous contextual information due to the differing urban fabric and spatial characteristics. Our work adopts a widely-used concept called adversarial domain adaptation to predict the parking occupancy in an area without abundant sensor data by leveraging data from other areas with similar features. In this paper, we utilise more than 35 million parking data records from sensors placed in two different cities, one is a city centre, and another one is a coastal tourist town. We also utilise heterogeneous spatio-temporal contextual information from external resources including weather and point of interests. We quantify the strength of our proposed framework in different cases and compare it to the existing data-driven approaches. The results show that the proposed framework outperforms existing methods and also provide a few valuable insights for parking availability prediction.

Abstract (translated)

URL

https://arxiv.org/abs/2007.08551

PDF

https://arxiv.org/pdf/2007.08551.pdf


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