In multivariate calibration using a spectral dataset, it is difficult to optimize nonsystematic parameters in a quantitative model, i.e., spectral pretreatment, latent factors and variable selection. In this study, we describe a novel and systematic approach that uses a processing trajectory to select three parameters including different spectral pretreatments, variable importance in the projec...

The simultaneous determination of sulfamethoxazole (SMX) and trimethoprim (TMP) mixtures in bovine milk by spectrophotometric method is, due to spectral interferences, a difficult problem in analytical chemistry. By means of multivariate calibration methods, such as partial least square (PLS) regression, it is possible to obtain a model adjusted to the concentration values of the mixtures used ...

the veterinary drugs residues are also important pollutants found in milk, since veterinary drugs are commonly used in cattle management. considering the role of milk in human nutrition and its wide consumption throughout the world, it is very important to ensure the milk quality. a quantitative structure–retention relationship (qsrr) was developed using the partial least square (pls), kernel p...

This study has a purpose to analyze (1) To find out and explain the influence of Entrepreneurship Education on Personal Management Students S1 at Stiesia Surabaya, (2) Influence Interest in Entrepreneurship, (3) Entrepreneurial Interests (4) roles mediating Undergraduate Surabaya. research belongs type category explanatory research, which is relationship between variables through hypothesis tes...

Genetic algorithm and partial least square (GA-PLS) technique was used to investigate the correlation between linear retention index (LRI) for Teucrium chamaedrys volatiles which were obtained by direct thermal desorption (DTD) technique with comprehensive two-dimensional (2D) gas chromatography-time-of-flight mass spectrometry (GC×GC-TOF/MS). The applied internal (leave-group-out cross validat...

Abstract Social media has become explosive, permeating every sphere of the socio-cultural lives individuals and businesses, causing nations to technologically evolve. The dramatic growth in adoption use social beneficial Small Medium Enterprises (SMEs), significantly contributing resolving a nagging challenge effectively advertising their goods services. Consequently, SMEs can achieve business ...

Terahertz (THz) spectroscopy and multivariate data analysis were explored to discriminate eight wheat varieties. The absorption spectra were measured using THz time-domain spectroscopy from 0.2 to 2.0 THz. Using partial least squares (PLS), a regression model for discriminating wheat varieties was developed. The coefficient of correlation in cross validation (R) and root-mean-square error of cr...

In the present paper, informatics-aided quantitative structure activity relationship (QSAR) models using genetic algorithm-partial least square (GA-PLS), genetic algorithm-Kernel partial least square (KPLS), and Levenberg-Marquardt artificial neural network (LM ANN) approach were constructed to access the antimalarial activity (pIC50) of 2,5-diaminobenzophenone derivatives. Comparison of errors...