Research

My research interests and topics.

Mapping Population Distribution with Mobile Phone Data

i. Home and Work

  • Stay Points | Home-Work Location | Mobile Phone Data | Machine Learning

home-work beijing * Population density of Beijing

  • Paper in preparation

ii. Dynamic Distribution

  • Dynamic Distribution | Rhythm | Urban Sensing

beijingdynamic

  1. Lei Dong, Sicong Chen, Yunsheng Cheng, Zhengwei Wu, Chao Li, and Haishan Wu. 2017. Measuring economic activity in China with mobile big data. EPJ Data Science. arXiv version: http://arxiv.org/abs/1607.04451
  2. Hongbin Pei, Bo Yang, Jiming Liu, and Lei Dong. 2017. Model-based group sparse Bayesian learning for actively monitoring dynamical systems. AAAI’18.

Urban Networks

i. Commuting Network

  • Commuting Pattern | Spatial Partition | Metropolitan Area

commuting1 commuting2

Commuting networks of Beijing-Hebei-Tianjin (top) and Yangtze River Delta (Bottom).

  • Paper in preparation

ii. Network Efficiency

  • Road Network Efficiency | Day-Night Population | Google Maps

dakar

  1. Lei Dong, Ruiqi Li, Jiang Zhang, and Zengru Di. 2016. Population-weighted efficiency in transportation networks. Nature Scientific Reports. doi:10.1038/srep26377

iii. Migration

  • Labor Force Migration | Spring Festival (Chunyun) | Population Flow

migration1

  • Paper in preparation

Economic Activity and Mobile Big Data

i. MobiMetrics

  • Employment | Consumption | Nowcasting

economy

  1. Lei Dong, Sicong Chen, Yunsheng Cheng, Zhengwei Wu, Chao Li, and Haishan Wu. 2017. Measuring economic activity in China with mobile big data. EPJ Data Science. arXiv version: http://arxiv.org/abs/1607.04451
    • Media hit: New Scientist, Bloomberg, Economist, Forbes, MIT Tech Review.

ii. Poverty and Development

  • Mobile Internet | Poverty | Regional Development

poverty

  1. Lei Dong and Haishan Wu. 2017. Mobile Internet and regional development in China. Environment and Planning A, 49(4):725-727. doi:10.1177/0308518X16676091
  2. Meng Zeng, Rong Shi, Lei Dong, Haishan Wu. 2016. The Living Standards Dimension of the Human Development Index. UNDP Report. Link

Scaling Law in Urban System

i. Spatial Attraction Model

  • Spatial Attraction | Active Population | Scaling Law

spatialattraction

  1. Ruiqi Li, Lei Dong, Jiang Zhang, Xinran Wang, Wen-Xu Wang, Zengru Di, and H.E. Stanley. 2017. Simple spatial scaling rules behind complex cities. Nature Communications, 8(1841). doi:10.1038/s41467-017-01882-w.
  2. Ruiqi Li, Lei Dong, Xinran Wang, and Jiang Zhang. 2016. The geometric origins of complex cities. Proceedings of European Conference on Complex Systems (ECCS’14), Springer. doi:10.1007978-3-319-29228-1_5

ii. City Boundary and Scaling Law

  • City Boundary | Spatial Data | MAUP | Scaling Law
  1. Lei Dong, Hao Wang, and Hongrui Zhao. 2017. The definition of city boundary and scaling law. Acta Geographica Sinica (地理学报), 72(2):213-223. doi:10.11821/dlxb201702003

iii. Urban Cells

  • Paper in preparation