Five cross validationmethods, the k-fold, leave one plot out (LOP), leave one tree per plotout (LOT), 0.632and 0.632+ bootstrapmethods, were examined in this study for their suitability for performance evaluation of seven nonlinear mixedmodels basedona height-diameter relationship. Thek-fold, LOP, 0.632 and 0.632+methods usedplot asthe basic unit for data resampling, and applies to situations where predictions are needed for all trees in a new plot not used for model development. All four methods were suitable for evaluating the predictive performance of the selected model(s), and the 0.632 and 0.632+ methods were better than the k-fold and LOP methods. The LOT method used tree as the basic unit for data resampling, and applies to situations where predictions are needed for a portion of trees in a plot not used for model development, while the remaining trees of the plot are used for model development. The LOTmethod was not suitable for performance evaluation of the selected model(s).
CITATION STYLE
Yang, Y., & Huang, S. (2014). Suitability of five cross validation methods for performance evaluation of nonlinear mixed-effects forest models - A case study. Forestry, 87(5), 654–662. https://doi.org/10.1093/forestry/cpu025
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