标题: A graph convolutional neural network for classification of building patterns using spatial vector data
作者: Yan, XF (Yan, Xiongfeng); Ai, TH (Ai, Tinghua); Yang, M (Yang, Min); Yin, HM (Yin, Hongmei)
来源出版物: ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING 卷: 150 页: 259-273 DOI: 10.1016/j.isprsjprs.2019.02.010 出版年: APR 2019
摘要: Machine learning methods, specifically, convolutional neural networks (CNNs), have emerged as an integral part of scientific research in many disciplines. However, these powerful methods often fail to perform pattern analysis and knowledge mining with spatial vector data because in most cases, such data are not underlying grid-like or array structures but can only be modeled as graph structures. The present study introduces a novel graph convolution by converting it from the vertex domain into a point-wise product in the Fourier domain using the graph Fourier transform and convolution theorem. In addition, the graph convolutional neural network (GCNN) architecture is proposed to analyze graph-structured spatial vector data. The focus of this study is the classical task of building pattern classification, which remains limited by the use of design rules and manually extracted features for specific patterns. The spatial vector data representing grouped buildings are modeled as graphs, and indices for the characteristics of individual buildings are investigated to collect the input variables. The pattern features of these graphs are directly extracted by training labeled data. Experiments confirmed that the GCNN produces satisfactory results in terms of identifying regular and irregular patterns, and thus achieves a significant improvement over existing methods. In summary, the GCNN has considerable potential for the analysis of graph structured spatial vector data as well as scope for further improvement.
作者关键词: Building pattern classification; Graph convolutional neural network; Machine learning; Spatial vector data; Graph Fourier transform; Deep learning
地址: [Yan, Xiongfeng; Ai, Tinghua; Yang, Min] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.
[Yin, Hongmei] Chinese Acad Surveying & Mapping, Beijing 100830, Peoples R China.
通讯作者地址: Ai, TH (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.
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