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Spxy algorithm

WebMethods: Model updating by adding new typical samples based on SPXY algorithm and absorbance modification were adopted to improve the model applicability of Huangpi cattle. Results: For model updating, the model correlation coefficient of Enshi buffalo increased from 0.021 to 0.919, with the RMSEP from 8.347 to 2.182. WebThis suggests the proposed algorithm provides a new option to obtain a representative calibration set. Sample subset partition is widely considered in machine learning modeling. An improved sample subset partition method based on a hybrid correlation and diversity x-y distance (HSPXY) is proposed in the framework of SPXY.

基于SG-Lasso-PLS融合算法的水体硝酸盐氮紫外光谱检测研究

WebThe proposed KSPXY algorithm is used with partial least-squares (PLS) to predict three chemical quality characteristics of diesel fuel. We compare the PLS-KSPXY modelling … Webk-s算法选取训练集和测试集 简单的一个算法,查了一下都让人下载收费,就是很烦。 k-s选取训练集的原理类似于挑女朋友,先选取两个离得最远的异地恋先谈着,然后觉得太远了,在找一个新的,进行比对,比对结果觉得挑的这个更好就进行替换,如此反复迭代选出你心目中最喜欢的几个女朋友 ... thunderbolt legacy adapter https://ptforthemind.com

SPXY Sample Classification Method and Successive Projections …

WebThe aim of this study is to enhance the classification performance of the back-propagation-artificial neural network (BP-ANN) algorithm for NaCl, NaOH, β-phenylethylamine (PEA), and their mixture, as well as to avoid the defects of the artificial bee colony (ABC) algorithm such as prematurity and local optimization. In this paper, a method that combined an improved … http://www.gpxygpfx.com/CN/abstract/abstract13233.shtml WebThe SPXY algorithm was used to divide the calibration set, and prediction set samples in a 3∶1 ratio. The peroxide value analysis models based on refractive index and absorption coefficient were established by the principal component regression algorithm and partial least square algorithm. thunderbolt legion rome

[Determination of hesperidin in tangerine leaf by near-infrared ...

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Spxy algorithm

相同关键词【Spectral transformation】论文列表 -- 中国光学期刊网

WebThe invention provides an agricultural input composite quality evaluation method which comprises the following steps: acquiring sample spectral data, and acquiring sample multi-quality index referencevalues by using a reference method; after the abnormal value and the data diversity are eliminated, establishing a sample multi-quality correction model based … Web孙宗保,梁黎明,李君奎,邹小波,刘小裕,王天真江苏大学食品与生物工程学院,江苏 镇江 212013引 言三文鱼由Salmo salar音译

Spxy algorithm

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Web20 Dec 2024 · The samples were divided into calibration and prediction sets at the ratio of 3:1 by the SPXY algorithm. Using the x and y variables simultaneously, the distance between samples was calculated to ensure the maximum representation of … WebNo information given.

Web4 Aug 2024 · The competitive adaptive reweighted sampling (CARS) algorithm and the successive projections algorithm (SPA) were used to extract characteristic wavelength points containing Brix information, and the CARS-PLS (partial least squares) algorithm was used to establish a Brix prediction model. WebMaturity determination of fresh okra fruit is a crucial issue for farmers to optimize harvest date for good taste and economic return. In this study, …

WebFeature selection and sample partitioning are both important to establish a quantitative analytical model for near-infrared (NIR) spectroscopy. The cl… Web运用SPXY算法按照3∶1比例划分校正集和预测集样本, 结合主成分回归法、 偏最小二乘法两种化学计量学分析方法, 分别建立基于折射率和基于吸收系数的过氧化值分析模型。 ... 近红外 遗传算法 特征波段 综纤维素 木质素 Near-infrared Genetic algorithm Characteristic ...

WebOn Splitting Training and Validation Set: A Comparative Study of Cross-Validation, Bootstrap and Systematic Sampling for Estimating the Generalization Performance of Supervised Learning J Anal Test. 2024;2 (3):249-262. doi: 10.1007/s41664-018-0068-2. Epub 2024 Oct 29. Authors Yun Xu 1 , Royston Goodacre 1 2 Affiliations

Web基于近红外光谱的腌制期咸鸭蛋理化指标无损检测. 2024-02-07 田文强 王巧华 徐步云 陈远哲 肖仕杰 林卫国 刘世伟 thunderbolt limited functionalityWeb[Determination of hesperidin in tangerine leaf by near-infrared spectroscopy with SPXY algorithm for sample subset partitioning and Monte Carlo cross validation] It is very crucial that a representative training set can be extracted from a pool of real samples. thunderbolt lion colt 45WebThe SPXY method is an extension of the KS algorithm that uses both X- and Y-differences in calculation of the intersample distances. In this study, three sample selection or reconstruction methods based on HCA were used to extract or reconstruct representative calibration sets from the pool of hydrolysis process samples. thunderbolt location hgss