The Missing Parts from Social Media–Enabled Smart Cities: Who, Where, When, and What?

Yihong Yuan, Yongmei Lu, T. Edwin Chow, Chao Ye, Abdullatif Alyaqout and Yu Liu

Annals of the American Association of Geographers, 2020, vol. 110, issue 2, 462-475

Abstract: Social networking sites (SNS), such as Facebook and Twitter, have attracted users worldwide by providing a means to communicate and share opinions and experiences of daily lives. When empowered by pervasive location acquisition technologies, location-based social media (LBSM) has become a potential resource for smart city applications to characterize social perceptions of place and model human activities. There is a lack of systematic examination of the representativeness of LBSM data, though. If LBSM data are applied to decision making in smart city services, such as emergency response or transportation, it is essential to understand their limitations to implement better policies or management practices. This study formalizes the sampling biases of LBSM data from various perspectives, including sociodemographic, spatiotemporal, and semantic. This article examines LBSM data representativeness issues using empirical cases and discusses the impacts on smart city applications. The results provide insights for understanding the limitations of LBSM data for smart city applications and for developing mitigation approaches. Key Words: data quality, location-based social media, sampling biases, smart city.

Date: 2020
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DOI: 10.1080/24694452.2019.1631144

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