Subpixel urban land cover estimation: Comparing cubist, random forests, and support vector regression

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Abstract

Three machine learning subpixel estimation methods (Cubist, Random Forests, and support vector regression) were applied to estimate urban cover. Urban forest canopy cover and impervious surface cover were estimated from Landsat-7 ETM+ imagery using a higher resolution cover map resampled to 30 m as training and reference data. Three different band combinations (reflectance, tasseled cap, and both reflectance and tasseled cap plus thermal) were compared for their effectiveness with each of the methods. Thirty different training site number and size combinations were also tested. Support vector regression on the tasseled cap bands was found to be the best estimator for urban forest canopy cover, while Cubist performed best using the reflectance plus tasseled cap band combination when predicting impervious surface cover. More training data partitioned in many small training sites generally produces better estimation results. © 2008 American Society for Photogrammetry and Remote Sensing.

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APA

Walton, J. T. (2008). Subpixel urban land cover estimation: Comparing cubist, random forests, and support vector regression. Photogrammetric Engineering and Remote Sensing, 74(10), 1213–1222. https://doi.org/10.14358/PERS.74.10.1213

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