钟晨-Inferring building functions from a probabilistic model using public transportation data
发布日期：2014-10-29 10:56:46 阅读次数：次 作者：
核心提示：来源出版物: COMPUTERS ENVIRONMENT AND URBAN SYSTEMS
|作者: Zhong, C (Zhong, Chen); Huang, XF (Huang, Xianfeng); Arisona, SM (Arisona, Stefan Mueller); Schmitt, G (Schmitt, Gerhard); Batty, M (Batty, Michael)|
|摘要: Cities are complex systems. They contain different functional areas originally defined by planning and then reshaped by actual needs and use by the inhabitants. Estimating the functions of urban space is of significant importance for detecting urban problems, evaluating planning strategies, and supporting policy making. In light of the potential of data mining and spatial analysis techniques for urban analysis, this paper proposes a method to infer urban functions at the building level using transportation data obtained from surveys and smart card systems. Specifically, we establish a two-step framework making use of the spatial relationships between trips, stops, and buildings. Firstly, information about the travel purposes for daily activities is deduced using passengers' mobility patterns based on a probabilistic Bayesian model. Secondly, building functions are inferred by linking daily activities to the buildings surrounding the stops based on spatial statistics. We demonstrate the proposed method using large-scale public transportation data from two areas of Singapore. Our method is applied to identify building functions at building level. The result is verified with master plan, street view, and investigated data, and limitations are identified. Our work shows that the presented method is applicable in practice with a good accuracy. In a broader context, it shows the effectiveness of applying integrated techniques to combine multi-source data in order to make insights about social activities and complex urban space. (C) 2014 Elsevier Ltd. All rights reserved.|
|地址: [Zhong, Chen; Huang, Xianfeng; Schmitt, Gerhard] ETH, Dept Architecture, Future Cities Lab, CH-8092 Zurich, Switzerland. |
[Huang, Xianfeng] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Peoples R China.
[Arisona, Stefan Mueller] Univ Appl Sci & Arts Northwestern Switzerland FHN, Inst Technol 4D, CH-5210 Windisch, Switzerland.
[Batty, Michael] UCL, Ctr Adv Spatial Anal, London W1N 6TR, England.
|通讯作者地址: Zhong, C (通讯作者),ETH, Dept Architecture, Future Cities Lab, CH-8092 Zurich, Switzerland.|
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