The bootstrap resampling method may be efficiently used to estimate the generalization error of a family of nonlinear regression models, as artificial neural networks. The main difficulty associated with the bootstrap in real-world applications is the high computation load. In this paper we propose a simple procedure based on empirical evidence, to considerably reduce the computation time needed to estimate the generalization error of a family of models of increasing number of parameters.
Simon, G., Lendasse, A., Wertz, V., & Verleysen, M. (2003). Fast approximation of the bootstrap for model selection. Proceedings of ESANN 2003, European Symposium on Artificial Neural Networks, p. 475-480. https://hdl.handle.net/2078.5/226016