[1] Hu J, Feng Y Z, Wang Y J et al. Detection of umami substances and umami intensity based on near-infrared spectroscopy[J]. Acta Optica Sinica, 42, 0130002(2022).

[2] Tang J Y, Huang M, Zhu Q B. Purity detection model update of maize seeds based on active learning[J]. Spectroscopy and Spectral Analysis, 35, 2136-2140(2015).

[3] Zou W B, Feng Y C, Hu C Q. Update of near-infrared models for testing ceftazidime, water and arginine in ceftazidime for injection[J]. Spectroscopy and Spectral Analysis, 34, 2617-2622(2014).

[4] Thennadil S N, Dewar M, Herdsman C et al. Automated weighted outlier detection technique for multivariate data[J]. Control Engineering Practice, 70, 40-49(2018).

[5] Zhang L F, Zhang Q, Du B et al. Simultaneous spectral-spatial feature selection and extraction for hyperspectral images[J]. IEEE Transactions on Cybernetics, 48, 16-28(2018).

[6] Jolliffe I T, Cadima J. Principal component analysis: a review and recent developments[J]. Philosophical Transactions of the Royal Society A: Mathematical, Physical, and Engineering Sciences, 374, 20150202(2016).

[7] Anowar F, Sadaoui S, Selim B. Conceptual and empirical comparison of dimensionality reduction algorithms (PCA, KPCA, LDA, MDS, SVD, LLE, ISOMAP, LE, ICA, t-SNE)[J]. Computer Science Review, 40, 100378(2021).

[8] Yang B, Xiang M, Zhang Y P. Multi-manifold discriminant isomap for visualization and classification[J]. Pattern Recognition, 55, 215-230(2016).

[9] Polito M, Perona P. Grouping and dimensionality reduction by locally linear embedding[C], 1255-1262(2001).

[10] van der Maaten L, Hinton G. Visualizing data using t-SNE[J]. Journal of Machine Learning Research, 9, 2579-2605(2008).

[11] de la Porte J, Herbst B M, Hereman W et al. An introduction to diffusion maps[EB/OL]. https:∥inside.mines.edu/fs_home/whereman/papers/delaPorte-Herbst-Hereman-vanderWalt-PRASA-2008.pdf

[12] Joswiak M, Peng Y, Castillo I et al. Dimensionality reduction for visualizing industrial chemical process data[J]. Control Engineering Practice, 93, 104189(2019).

[13] Cherkassky V, Ma Y Q. Practical selection of SVM parameters and noise estimation for SVM regression[J]. Neural Networks, 17, 113-126(2004).

[14] Benoudjit N, Verleysen M. On the kernel widths in radial-basis function networks[J]. Neural Processing Letters, 18, 139-154(2003).

[15] Kitayama S, Yamazaki K. Simple estimate of the width in Gaussian kernel with adaptive scaling technique[J]. Applied Soft Computing, 11, 4726-4737(2011).

[16] Coifman R R, Lafon S. Diffusion maps[J]. Applied and Computational Harmonic Analysis, 21, 5-30(2006).

[17] Liu P, Wen Y P, Huang J S et al. A novel strategy of near-infrared spectroscopy dimensionality reduction for discrimination of grades, varieties and origins of green tea[J]. Vibrational Spectroscopy, 105, 102984(2019).

[18] Nadler B, Lafon S, Coifman R R et al. Diffusion maps, spectral clustering and reaction coordinates of dynamical systems[J]. Applied and Computational Harmonic Analysis, 21, 113-127(2006).

[19] Singer A, Erban R, Kevrekidis I G et al. Detecting intrinsic slow variables in stochastic dynamical systems by anisotropic diffusion maps[J]. Proceedings of the National Academy of Sciences of the United States of America, 106, 16090-16095(2009).