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A boosting extreme learning machine for nearinfrared spectral quantitative analysis of diesel fuel and edible blend oil samples
writer:Xihui Bian*, Caixia Zhang, Xiaoyao Tan, Michal Dymek, Yugao Guo, Ligang Lin, Bowen Cheng, Xiaoyu
keywords:Extreme learning machine, Ensemble modeling, Boosting, Complex samples, Near-infrared spectroscopy
source:期刊
specific source:Analytical Methods, 2017, 9, 2983-2989
Issue time:2017年
Extreme learning machine (ELM) has drawn increasing attention due to its characteristics of simple structure, high learning speed and excellent performance. However, a single ELM tends to low predictive accuracy and instability in dealing with quantitative analysis of complex samples. To further improve the predictive accuracy and stability of ELM, a new quantitative model, called boosting ELM is proposed. In the approach, a large number of ELM sub-models are sequentially built by selecting a certain number of samples from the original training set according to the distribution of the sampling weights, and then their predictions aggregate by weighted median. Activation function and the hidden nodes number of ELM sub-model are determined simultaneously by the ratio of mean value and standard deviation of correlation coefficients (MSR). The performance of the proposed method is tested with diesel fuel and blended edible oil samples. Compared with partial least squares (PLS) and ELM, the results demonstrate that boosting ELM is an efficient ensemble model and has obvious superiorities in predictive accuracy and stability. Therefore, the proposed method may be an alternative for near-infrared (NIR) spectral quantitative analysis of complex samples