4.7 Article

Machine learning application to spatio-temporal modeling of urban growth

Journal

COMPUTERS ENVIRONMENT AND URBAN SYSTEMS
Volume 94, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.compenvurbsys.2022.101801

Keywords

Urban growth; Machine learning method; Spatio-temporal modeling; Random forest; Prediction

Funding

  1. University of Florida Research [AGR DTD 12-02-20]
  2. National Science Foundation [2124507, 2021]
  3. Direct For Mathematical & Physical Scien
  4. Division Of Mathematical Sciences [2124507] Funding Source: National Science Foundation

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Understanding the dynamics of urban growth is crucial in urban planning, and accurate prediction of urban growth is important for regional policy makers. Machine learning methods, especially the random forest algorithm, show better performance in predicting urban growth at regional levels.
Understanding the dynamics of urban growth is among the most important tasks in urban planning due to their influence on policy decision-making. Specifically, prediction of urban growth at regional levels is crucial for regional policy makers. Making such predictions is difficult because of the existence of complex topological structures and the high-dimensional nature of data sets related to urban growth. Spatial and temporal auto correlation and cross-correlations, together with regional social and physical covariates, need to be properly accounted for improving the forecasting power of any statistical or machine learning method. To that end, we develop novel machine learning methodologies to perform predictions of urban growth at regional levels by incorporating lead-lag non-linear relationships among past urban changes in each region and its neighbors. Based on this analysis, machine learning algorithms outperform more classical methods, such as a logistic regression, in terms of classifying low/high urban growth regions, and the random forest algorithm seems to have the best prediction accuracy among the selected machine learning methods. Moreover, the random forest method without any external covariates has still a high prediction accuracy which not only confirms that most of variability of urban growth can be described by past observations of self and neighboring changes, but also makes it possible to perform real forecasting of urban growth without accessing any external covariates. The latter makes this modeling framework useful for local policy makers in allocating budget and directing resources appropriately based on such predictions.

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