Extracting facial feature points such as eyes, mouth and nose plays an important role in many applications. Most of the proposed methods are base on the geometrical features of images. In this paper, a novel method based on Partial Least Square Regression (PLSR) model is introduced to extract the relationship between the feature point coordinates and gray value distribution in the image. The pr...

The paper presents results from simulations based on real data, comparing several competing mean squared error of prediction (MSEP) estimators on principal components regression (PCR) and partial least squares regression (PLSR): leave-one-out crossvalidation, K-fold and adjusted K-fold cross-validation, the ordinary bootstrap estimate, the bootstrap smoothed cross-validation (BCV) estimate and ...

Cellular behavior in response to stimulatory cues is governed by information encoded within a complex intracellular signaling network. An understanding of how phenotype is determined requires the distributed characterization of signaling processes (e.g., phosphorylation states and kinase activities) in parallel with measures of resulting cell function. We previously applied quantitative mass sp...

Snow pears are an important and widespread agricultural product that can relieve respiratory symptoms, constipation, alcoholism. Lignin content (LC) has a direct negative role on the fruit texture taste of snow pears. Here, we studied effect near-infrared (NIR) spectroscopy determination LC in due to position at which spectral measurements were obtained. NIR diffuse reflection spectra collected...

Abstract Aiming at the shortcomings of traditional methods for detecting content Alkaline Hydrolysis Nitrogen (AHN) and pH value in soil, such as time-consuming labor-consuming, this paper proposes a rapid quantitative inversion method based on hyperspectral analysis AHN value. This uses db4 discrete wavelet denoising (DWD) normalization (DWD-N) to carry out Pearson correlation analysis, two me...

The objective of this study was to find an efficient method for measuring the total soluble solid content (TSSC) and water “Luogang” orange. Quick, accurate, nondestructive detection tools (VIS/NIR spectroscopy, NIR machine vision, electronic nose), four data processing methods (Savitzky–Golay (SG), genetic algorithm (GA), multi-source information fusion (MIF), convolutional neural network (CNN...

ABSTRACT Historical rainfall records are relevant in hydrometeorological studies because they provide information on the spatial features, frequency, and amount of precipitated water a specific place, therefore, it is essential to make an adequate estimation missing data. This study evaluated four methods for estimating monthly data at 46-gauge stations southwestern Colombia covering 1983-2019....

In this paper, the variation transmission model is introduced to build the key quality characteristics identifying model in multistage manufacturing process. Then the PLSR (Partial Least Squares Regression) method is used to solve the multicollinearity problem of the quality characteristics, make model analyzing and identify the key quality characteristics. At last, the aircraft parts manufactu...

In order to vertify the feasibility of the near-infrared to detect the veterinary drug in honey, studying the impact of different background correction methods for linear modeling and nonlinear modeling. Use PLSR to establish the linear model between near-infrared spectroscopy and to be measured, and LSSVR to establish the nonlinear model between near-infrared spectroscopy and to be measured. A...