期刊
IEEE ACCESS
卷 9, 期 -, 页码 34338-34351出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3052795
关键词
Public transportation; Clustering algorithms; Feature extraction; Data mining; Loss measurement; Urban areas; Time series analysis; Mobility patterns; co-clustering; spatio-temporal co-occurrence; taxi trip
资金
- Open Fund of Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources [KF-2020-05-063]
- Fundamental Research Funds for the Central Universities [2652018085]
This study proposes an analytical framework based on co-clustering to reveal mobility patterns in both spatial and temporal dimensions. By applying this framework to taxi GPS data in Manhattan, researchers successfully explored spatio-temporal co-occurrence patterns and compared mobility differences between weekdays and holidays.
Research on clustering spatio-temporal data to extract mobility patterns requires further development, as most existing studies do not simultaneously integrate data along both spatial dimensions and temporal dimensions but instead focus on only one dimension or separate the dimensions in analyses and applications, which could lead to discoveries that are not representative of the overall data or are dificult to interpret. To simultaneously reveal the spatial and temporal patterns of urban mobility datasets, we propose an analytical framework that is based on co-clustering and enables mobility behaviors to be distinguished in spatial and temporal dimensions. We use one month of taxi GPS data from the Manhattan area to explore spatio-temporal co-occurrence patterns. The spatial and temporal dimensions of taxi trip data were co-clustered by using the Bregman Block Average co-clustering algorithm with I-divergence (BBAC_I). We performed this process on weekdays and holidays and compared the mobility differences between these two periods. The experimental results demonstrated the effectiveness of this analytical framework, with which we can reveal the spatial patterns and their temporal dynamics as well as temporal patterns and their spatial dynamics in mobility data.
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