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5,370 Results Found

  • Article
  • Open Access
20 Citations
6,994 Views
22 Pages

Evaluation of the Snow Albedo Retrieved from the Snow Kernel Improved the Ross-Roujean BRDF Model

  • Anxin Ding,
  • Ziti Jiao,
  • Yadong Dong,
  • Xiaoning Zhang and ,
  • Jouni I. Peltoniemi,
  • Linlu Mei,
  • Jing Guo,
  • Siyang Yin,
  • Lei Cui and
  • Rui Xie
  • + 6 authors+ 1 author

6 July 2019

The original kernel-driven bidirectional reflectance distribution function (BRDF) models were developed based on soil-vegetation systems. To further improve the ability of the models to characterize the snow surface scattering properties, a snow kern...

(This article belongs to the Special Issue Remote Sensing for Quantifying Spatial and Temporal Variability of Snow and Snow Processes)
  • Article
  • Open Access
8 Citations
2,998 Views
17 Pages

13 December 2022

This paper proposes a wind power probabilistic model (WPPM) using the reflection method and multi-kernel function kernel density estimation (KDE). With the increasing penetration of renewable energy sources (RESs) into power systems, several probabil...

(This article belongs to the Special Issue Recent Advances in Isolated Power Systems)
  • Article
  • Open Access
7 Citations
3,045 Views
14 Pages

Model Study on the Combination of Operating Parameters of Corn Kernel Harvesters

  • Deyi Zhou,
  • Chongbin Xu,
  • Yuelin Xin,
  • Pengfei Hou and ,
  • Baoguang Wu,
  • Haiye Yu,
  • Jinsong Zhang and
  • Qiang Zhang
  • + 3 authors+ 0 author

3 November 2021

This study analyzed the engine operating condition curve of the corn kernel harvester. Field experiments identified the feed rate, concave clearance, and cylinder speed as the main factors affecting operating quality and efficiency. A ternary quadrat...

(This article belongs to the Section Agricultural Science and Technology)
  • Article
  • Open Access
2 Citations
3,413 Views
22 Pages

30 June 2020

Recent literature shows that many testing procedures used to evaluate asset pricing models result in spurious rejection probabilities. Model misspecification, the strong factor structure of test assets, or skewed test statistics largely explain this....

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
19 Citations
2,946 Views
14 Pages

Fault Diagnosis of Coal Mill Based on Kernel Extreme Learning Machine with Variational Model Feature Extraction

  • Hui Zhang,
  • Cunhua Pan,
  • Yuanxin Wang,
  • Min Xu and ,
  • Fu Zhou,
  • Xin Yang,
  • Lou Zhu,
  • Chao Zhao,
  • Yangfan Song and
  • Hongwei Chen
  • + 5 authors+ 0 author

26 July 2022

Aiming at the typical faults in the coal mills operation process, the kernel extreme learning machine diagnosis model based on variational model feature extraction and kernel principal component analysis is offered. Firstly, the collected signals of...

(This article belongs to the Special Issue New Frontiers in Circulating Fluidized Bed Boiler and Thermal Power Plant)
  • Article
  • Open Access
1 Citations
2,347 Views
17 Pages

10 August 2022

To obtain quality variables that cannot be measured in real time during the production process but reflect information on the quality of the final product, the batch production process has the characteristics of a strong time-varying nature, non-Gaus...

  • Article
  • Open Access
11 Citations
5,025 Views
19 Pages

10 March 2022

The Bidirectional Reflectance Distribution Function (BRDF) is usually used to describe the reflectance anisotropy of a non-Lambertian surface and estimate surface parameters. Among the BRDF models, the kernel-driven models have been extensively used...

(This article belongs to the Special Issue New Insights into Remote Sensing of Vegetation Structural Parameters)
  • Article
  • Open Access
3 Citations
1,276 Views
27 Pages

1 July 2025

Grey models have attracted considerable attention as a time series forecasting tool in recent years. Nevertheless, the linear characteristics of the differential equations on which traditional grey models rely frequently result in inadequate predicti...

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,038 Views
28 Pages

4 March 2026

This manuscript presents a study of the Stress-Driven integral Model (SDM) for the bending response of Bernoulli–Euler nanobeams. Unlike conventional approaches that reformulate the nonlocal integral problem into an equivalent differential form...

(This article belongs to the Special Issue Advanced Computational Mechanics)
  • Article
  • Open Access
31 Citations
3,920 Views
24 Pages

This article presents a new thermoelastic model that incorporates fractional-order derivatives of two-phase heat transfer as well as a two-temperature concept. The objective of this model is to improve comprehension and forecasting of heat transport...

(This article belongs to the Special Issue General Fractional Calculus: Theory, Methods and Applications in Mathematical Physics)
  • Article
  • Open Access
12 Citations
3,062 Views
28 Pages

A Water Shortage Risk Assessment Model Based on Kernel Density Estimation and Copulas

  • Tanghui Qian,
  • Zhengtao Shi,
  • Shixiang Gu,
  • Wenfei Xi and ,
  • Jing Chen,
  • Jinming Chen,
  • Shihan Bai and
  • Lei Wu
  • + 3 authors+ 0 author

21 May 2024

Accurate assessment and prediction of water shortage risk are essential prerequisites for the rational allocation and risk management of water resources. However, previous water shortage risk assessment models based on copulas have strict requirement...

(This article belongs to the Section Water Use and Scarcity)
  • Article
  • Open Access
20 Citations
3,192 Views
11 Pages

17 July 2022

This paper presents a development of a statistical model of typhoon genesis, tracks based on kernel density estimation and a generalized additive model (GAM). Modeling of typhoon activity is ultimately beneficial to the people living in coastal zones...

(This article belongs to the Section Climatology)
  • Article
  • Open Access
8 Citations
5,073 Views
11 Pages

22 February 2019

The Kernel ridge regression ( K R R) model aims to find the hidden nonlinear structure in raw data. It makes an assumption that the noise in data satisfies the Gaussian model. However, it was pointed out that the noise in wind speed/power forecasti...

(This article belongs to the Special Issue Information Technology and Its Applications 2021)
  • Article
  • Open Access
16 Citations
5,060 Views
19 Pages

17 April 2019

The symmetrical difference kernel SAR image edge detection algorithm based on the Canny operator can usually achieve effective edge detection of a single view image. When detecting a multi-view SAR image edge, it has the disadvantage of a low detecti...

(This article belongs to the Special Issue New Trends in Dynamics)
  • Article
  • Open Access
3 Citations
6,429 Views
11 Pages

24 January 2019

This paper carried out a hybrid clustering model for foreign exchange market volatility clustering. The proposed model is built using a Gaussian Mixture Model and the inference is done using an Expectation Maximization algorithm. A mono-dimensional k...

(This article belongs to the Special Issue Data Analysis for Financial Markets)
  • Article
  • Open Access
627 Views
23 Pages

Comprehensive Analysis of Snow BRDF Variations by Assessing the Improved Kernel-Driven BRDF Model

  • Jing Guo,
  • Ziti Jiao,
  • Lei Cui,
  • Zhilong Li and ,
  • Chenxia Wang,
  • Fangwen Yang,
  • Ge Gao,
  • Zheyou Tan,
  • Sizhe Chen and
  • Xin Dong
  • + 5 authors+ 0 author

18 May 2026

Understanding the variations in the bidirectional reflectance distribution function (BRDF) and albedo over snow surface under various conditions is important for interpreting the surface–atmosphere processes of the cryosphere, and the kernel-dr...

(This article belongs to the Special Issue Remote Sensing Modelling and Measuring Snow Cover and Snow Albedo)
  • Article
  • Open Access
2 Citations
2,358 Views
17 Pages

The transmission rate of COVID-19 varies over time. There are many reasons underlying this mechanism, such as seasonal changes, lockdowns, social distancing, and wearing face masks. Hence, it is very difficult to directly measure the transmission rat...

(This article belongs to the Special Issue Mathematical Methods and Models in Epidemiology)
  • Article
  • Open Access
201 Views
41 Pages

Kernel-Driven Model Correction of Thermal Directionality: Pixel-Level Analysis Using Airborne Multi-Angular Observations

  • Louis Snyders,
  • Joris Blommaert,
  • Jonathan Leon-Tavares,
  • Mary Langsdale and
  • Lorenzo Genesio

14 October 2026

Directional anisotropy (DA) in thermal infrared (TIR) remote sensing introduces significant variability in land surface temperature (LST) retrievals, particularly in high-resolution observations. This study presents the empirical pixel-level modellin...

(This article belongs to the Special Issue Land Surface Temperature Retrieval and Cross-Validation for Remote Sensing Applications)
  • Article
  • Open Access
556 Views
23 Pages

A Thermal Infrared Remote Sensing Model for Diagnosing Winter Wheat Water (Triticum aestivum L.) Stress by Integrating Angular Effects and Kernel-Driven Models

  • Xiaohan Lu,
  • Guoqiang Hu,
  • Xiaofei Yang,
  • Hao Li and ,
  • Hao Liu,
  • Qi Xu,
  • Yanfu Liu,
  • Daoxu Fan,
  • Zilong Li and
  • Zhitao Zhang
  • + 8 authors+ 3 authors

18 July 2026

Canopy temperature (Tc) is an important indicator for characterizing crop water status and serves as the core variable for constructing the Crop Water Stress Index (CWSI). Timely and accurate diagnosis of crop water stress is of great significance fo...

(This article belongs to the Special Issue Remote Sensing in Precision Agriculture: Focus on Crop Water, Salt Stress and Nutrient Deficiency)
  • Article
  • Open Access
12 Citations
3,148 Views
16 Pages

Correcting an Off-Nadir to a Nadir Land Surface Temperature Using a Multitemporal Thermal Infrared Kernel-Driven Model during Daytime

  • Qiang Na,
  • Biao Cao,
  • Boxiong Qin,
  • Fan Mo and ,
  • Limeng Zheng,
  • Yongming Du,
  • Hua Li,
  • Zunjian Bian,
  • Qing Xiao and
  • Qinhuo Liu
  • + 5 authors+ 0 author

18 May 2024

Land surface temperature (LST) is a fundamental parameter in global climate, environmental, and geophysical studies. Remote sensing is an essential approach for obtaining large-scale and frequently updated LST data. However, due to the wide field of...

(This article belongs to the Special Issue Advances in Thermal Infrared Remote Sensing II)
  • Article
  • Open Access
2 Citations
3,883 Views
18 Pages

2 September 2019

Kernels play a crucial role in Gaussian process regression. Analyzing kernels from their spectral domain has attracted extensive attention in recent years. Gaussian mixture models (GMM) are used to model the spectrum of kernels. However, the number o...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
6 Citations
3,176 Views
16 Pages

Evaluation of the Heterogeneity of Wheat Kernels as a Traditional Model Object in Connection with the Asymmetry of Development

  • Ekaterina N. Baranova,
  • Tatiana S. Aniskina,
  • Viktoria A. Kryuchkova,
  • Olga A. Shchuklina and ,
  • Marat R. Khaliluev and
  • Alexander A. Gulevich
  • + 1 author+ 0 author

30 May 2022

Wheat is one of the most important crops in the world, providing food for most of the world’s population. Wheat seeds are a popular model object for many experiments to evaluate various factors that improve germination or protect against variou...

(This article belongs to the Section C: Physics)
  • Article
  • Open Access
132 Citations
11,018 Views
21 Pages

A Comparative Study of Kernel Logistic Regression, Radial Basis Function Classifier, Multinomial Naïve Bayes, and Logistic Model Tree for Flash Flood Susceptibility Mapping

  • Binh Thai Pham,
  • Tran Van Phong,
  • Huu Duy Nguyen,
  • Chongchong Qi and ,
  • Nadhir Al-Ansari,
  • Ata Amini,
  • Lanh Si Ho,
  • Tran Thi Tuyen,
  • Hoang Phan Hai Yen and
  • Dieu Tien Bui
  • + 7 authors+ 2 authors

15 January 2020

Risk of flash floods is currently an important problem in many parts of Vietnam. In this study, we used four machine-learning methods, namely Kernel Logistic Regression (KLR), Radial Basis Function Classifier (RBFC), Multinomial Naïve Bayes (NBM...

(This article belongs to the Special Issue Advances in Flash Flood Forecasting)
  • Feature Paper
  • Article
  • Open Access
7 Citations
2,188 Views
16 Pages

31 January 2024

This paper proposes a solution to model fractional behaviours with a convolution model involving non-singular kernels and without using fractional calculus. The non-singular kernels considered are rational functions of time. The interest of this clas...

(This article belongs to the Special Issue Fractional Calculus and the Applied Analysis)
  • Article
  • Open Access
578 Views
20 Pages

Part surface topography is characterized by complex multi-scale and multi-feature coupling, and accurate topography modeling is essential for predicting assembly precision in high-performance mechanical systems. Gaussian Process Regression (GPR) offe...

(This article belongs to the Special Issue Design, Manufacturing, Measurement, and Quality Control Technologies for Assembly)
  • Article
  • Open Access
1 Citations
1,557 Views
15 Pages

This paper introduces a convolution model with non-singular rational kernels in which coefficients are considered complex. An interlacing property of the poles and zeros in these rational kernels permits the accurate approximation of the power law fu...

(This article belongs to the Section Numerical and Computational Methods)
  • Article
  • Open Access
8 Citations
2,538 Views
20 Pages

The management of individual weights in broiler farming is not only crucial for increasing farm income but also directly linked to the revenue growth of integrated broiler companies, necessitating prompt resolution. This paper proposes a model to est...

(This article belongs to the Section Farm Animal Production)
  • Article
  • Open Access
16 Citations
3,424 Views
18 Pages

Evaluation of Linear Kernel-Driven BRDF Models over Snow-Free Rugged Terrain

  • Wenzhe Zhu,
  • Dongqin You,
  • Jianguang Wen,
  • Yong Tang and ,
  • Baochang Gong and
  • Yuan Han
  • + 1 author+ 0 author

30 January 2023

Semi-empirical kernel-driven models have been widely used to characterize anisotropic reflectance due to their simple form and physically meaningful approximation. Recently, several kernel-driven models have been coupled with topographic effects to i...

(This article belongs to the Special Issue Quantitative Remote Sensing Product and Validation Technology)
  • Article
  • Open Access
327 Views
23 Pages

Calibration of Discrete Element Parameters for Maize Kernels Using the Tavares UFRJ Breakage Model

  • Shanchen Jiang,
  • Heng Liu,
  • Yongshun Zhuang,
  • Xianrui Kong and ,
  • Jie Geng and
  • Zhiyou Niu
  • + 1 author+ 0 author

30 September 2026

This study established a stepwise procedure for calibrating the contact parameters and Tavares UFRJ breakage-model parameters required for discrete element method (DEM) simulations of Denghai 605 maize kernels. Kernel–kernel and kernel–ca...

(This article belongs to the Special Issue Engineering, Digital Technologies, and Process Optimization for Sustainable Feed Manufacturing)
  • Article
  • Open Access
12 Citations
3,427 Views
13 Pages

A Study on the Suitable Areas for Growing Apricot Kernels in China Based on the MaxEnt Model

  • Runze Sun,
  • Guanjie Tong,
  • Qing Zhang,
  • Lingjie Xu and ,
  • Zihan Sang and
  • Yanhui Li
  • + 1 author+ 0 author

15 June 2023

Research on the climatic adaptation of the apricot kernels (Prunus armeniaca L.) has significant meaning for optimizing their cultivation and utilizing climatic resources effectively. This research utilizes geographical distribution data, climatic en...

(This article belongs to the Section Sustainable Forestry)
  • Communication
  • Open Access
2 Citations
2,338 Views
13 Pages

31 December 2023

This paper proposes algorithms to model fractional (dynamical) behaviors using non-singular rational kernels whose interest is first demonstrated on a pure power law function. Two algorithms are then proposed to find a non-singular rational kernel th...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)
  • Article
  • Open Access
1 Citations
3,552 Views
15 Pages

14 November 2023

The primary challenge in unsupervised learning is training unnormalized density models and then generating similar samples. Few traditional unnormalized models know what the quality of the trained model is, as most models are evaluated by downstream...

  • Article
  • Open Access
1,551 Views
26 Pages

19 August 2025

The intensification of the urban thermal environment has brought attention to urban land surface temperature (ULST). Complex building geometry and manmade material lead to significant thermal radiation directionality (TRD) of the urban canopy, and th...

(This article belongs to the Section Urban Remote Sensing)
  • Article
  • Open Access
2 Citations
1,428 Views
25 Pages

23 July 2025

Restricted maximum likelihood (REML) estimators are commonly used to obtain unbiased estimators for the variance components in linear mixed models. In modern applications, particularly in genomic studies, the dimension of the design matrix with respe...

(This article belongs to the Special Issue Statistics: Theories and Applications)
  • Article
  • Open Access
11 Citations
7,027 Views
11 Pages

In a point set in dimension superior to 1, the statistical distribution of the number of pairs of points as a function of distance between the points of the pair is not uniform. This distribution is not considered in a large number of classic methods...

  • Article
  • Open Access
1,186 Views
24 Pages

1 September 2025

Kernel transfer learning (KTL), as a kind of statistical transfer learning (STL), has provided significant solutions for cross-domain condition monitoring and fault diagnosis of bearings due to its ability to capture relationships and reduce the gap...

(This article belongs to the Special Issue Advanced Signal Processing Methods and Deep Neural Networks for Machine Fault Diagnosis)
  • Article
  • Open Access
7 Citations
5,380 Views
17 Pages

Within the realm of intelligent transportation systems, the precise forecasting of vehicular speed across individual road segments constitutes a fundamental task. This metric serves as a pivotal indicator for evaluating the extent of network congesti...

  • Article
  • Open Access
1 Citations
2,159 Views
17 Pages

27 October 2024

This paper integrates L1-norm structural risk minimization with L1-norm approximation error to develop a new optimization framework for solving the parameters of sparse kernel regression models, addressing the challenges posed by complex mo...

(This article belongs to the Topic Micro-Mechatronic Engineering)
  • Article
  • Open Access
878 Views
12 Pages

26 June 2026

We propose a Bayesian kernel machine regression (BKMR) framework for count outcomes with dynamic spatiotemporal dependence. The proposed model, termed Negative Binomial BKMR with spatiotemporal effects (NB-BKMR), integrates (i) a negative binomial li...

  • Article
  • Open Access
1 Citations
1,455 Views
33 Pages

13 June 2025

Partially linear time series models often suffer from multicollinearity among regressors and autocorrelated errors, both of which can inflate estimation risk. This study introduces a generalized ridge-type kernel (GRTK) framework that combines kernel...

(This article belongs to the Special Issue Statistical Forecasting: Theories, Methods and Applications)
  • Article
  • Open Access
7 Citations
4,201 Views
15 Pages

8 July 2022

There are three main problems for classical kernel density estimation in its application: boundary problem, over-smoothing problem of high (low)-density region and low-efficiency problem of large samples. A new improved model of multivariate adaptive...

(This article belongs to the Special Issue Engineering Calculation and Data Modeling)
  • Article
  • Open Access
1 Citations
1,666 Views
23 Pages

Research on the Detection Model of Kernel Anomalies in Ionospheric Space Electric Fields

  • Xingsu Li,
  • Zhong Li,
  • Jianping Huang,
  • Ying Han and ,
  • Yumeng Huo,
  • Junjie Song and
  • Bo Hao
  • + 2 authors+ 0 author

31 January 2025

Research has found kernel anomaly regions in the power spectrum images of ionospheric electric fields in space, which are widely distributed. To effectively detect these kernel abnormal regions, this paper proposes a new kernel abnormal region detect...

(This article belongs to the Special Issue Ionospheric Sounding for Identification of Pre-seismic Activity)
  • Article
  • Open Access
14 Citations
2,666 Views
15 Pages

Study on the Contact Parameter Calibration of the Maize Kernel Polyhedral Discrete Element Model

  • Huhu Chen,
  • Haipeng Lin,
  • Xuefeng Song,
  • Fengwei Zhang and ,
  • Fei Dai,
  • Ting Yang and
  • Baicheng Li
  • + 2 authors+ 0 author

19 September 2024

During maize production and transportation, maize kernels frequently interact with mechanical components. To accurately simulate the interaction process between maize and mechanical components, it is essential to establish a reliable maize kernel mod...

(This article belongs to the Section Agricultural Technology)
  • Article
  • Open Access
13 Citations
3,745 Views
18 Pages

8 October 2020

Owing to the constraints of time and space complexity, network intrusion detection systems (NIDSs) based on support vector machines (SVMs) face the “curse of dimensionality” in a large-scale, high-dimensional feature space. This study pro...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
5 Citations
4,516 Views
27 Pages

Quantum Variational vs. Quantum Kernel Machine Learning Models for Partial Discharge Classification in Dielectric Oils

  • José Miguel Monzón-Verona,
  • Santiago García-Alonso and
  • Francisco Jorge Santana-Martín

19 February 2025

In this paper, electrical discharge images are classified using AI with quantum machine learning techniques. These discharges were originated in dielectric mineral oils and were detected by a high-resolution optical sensor. The captured images were p...

(This article belongs to the Special Issue Image Processing and Pattern Recognition Based on Deep Learning—2nd Edition)
  • Article
  • Open Access
16 Citations
4,697 Views
16 Pages

5 March 2019

To eliminate heavy noise and retain more scene details, we propose a structure-oriented total variation (TV) model based on data dependent kernel function and TV criterion for image denoising application. The innovative model introduces the weights p...

  • Article
  • Open Access
2 Citations
3,915 Views
14 Pages

14 July 2022

In this paper, we introduce a kernel-based nonlinear Bayesian model for a right-censored survival outcome data set. Our kernel-based approach provides a flexible nonparametric modeling framework to explore nonlinear relationships between predictors w...

(This article belongs to the Special Issue Survival Analysis: Models and Applications)
  • Article
  • Open Access
82 Citations
3,851 Views
15 Pages

This paper deals with the numerical solutions and convergence analysis for general singular Lane–Emden type models of fractional order, with appropriate constraint initial conditions. A modified reproducing kernel discretization technique is us...

  • Article
  • Open Access
30 Citations
7,672 Views
19 Pages

A Novel Extreme Learning Machine Classification Model for e-Nose Application Based on the Multiple Kernel Approach

  • Yulin Jian,
  • Daoyu Huang,
  • Jia Yan,
  • Kun Lu and ,
  • Ying Huang,
  • Tailai Wen,
  • Tanyue Zeng,
  • Shijie Zhong and
  • Qilong Xie
  • + 4 authors+ 0 author

19 June 2017

A novel classification model, named the quantum-behaved particle swarm optimization (QPSO)-based weighted multiple kernel extreme learning machine (QWMK-ELM), is proposed in this paper. Experimental validation is carried out with two different electr...

(This article belongs to the Special Issue Electronic Tongues and Electronic Noses)
  • Article
  • Open Access
8 Citations
3,468 Views
15 Pages

A Note on a Fractional Extension of the Lotka–Volterra Model Using the Rabotnov Exponential Kernel

  • Mohamed M. Khader,
  • Jorge E. Macías-Díaz,
  • Alejandro Román-Loera and
  • Khaled M. Saad

21 January 2024

In this article, we study the fractional form of a well-known dynamical system from mathematical biology, namely, the Lotka–Volterra model. This mathematical model describes the dynamics of a predator and prey, and we consider here the fraction...

(This article belongs to the Special Issue Fractional Calculus - Theory and Applications II)

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