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986 Results Found

  • Article
  • Open Access
350 Citations
13,864 Views
19 Pages

Validation of Calibrated Energy Models: Common Errors

  • Germán Ramos Ruiz and
  • Carlos Fernández Bandera

12 October 2017

Nowadays, there is growing interest in all the smart technologies that provide us with information and knowledge about the human environment. In the energy field, thanks to the amount of data received from smart meters and devices and the progress ma...

  • Article
  • Open Access
2 Citations
1,560 Views
16 Pages

30 October 2024

The error in modulus backcalculation is a crucial component in validating the rationality and reliability of results for engineering applications. The objective of this study is to identify the theoretical limitations associated with backcalculated m...

(This article belongs to the Special Issue Innovation in Pavement Materials: 2nd Edition)
  • Article
  • Open Access
23 Citations
9,632 Views
16 Pages

Plug-in Bandwidth Selection for Kernel Density Estimation with Discrete Data

  • Chi-Yang Chu,
  • Daniel J. Henderson and
  • Christopher F. Parmeter

This paper proposes plug-in bandwidth selection for kernel density estimation with discrete data via minimization of mean summed square error. Simulation results show that the plug-in bandwidths perform well, relative to cross-validated bandwidths, i...

  • Article
  • Open Access
2 Citations
2,041 Views
10 Pages

Quantitative Research on Generalized Linear Modeling of SEU and Test Programs Based on Small Sample Data

  • Fei Chu,
  • Hongzhuan Chen,
  • Chunqing Yu,
  • Lihua You and ,
  • Liang Wang and
  • Yun Liu
  • + 1 author+ 0 author

Complex integrated circuits (ICs) have complex functions and various working modes, which have many factors affecting the performance of a single event effect. The single event effect performance of complex ICs is highly program-dependent and the sin...

(This article belongs to the Special Issue Radiation Tolerant Electronics, Volume II)
  • Article
  • Open Access
3 Citations
3,756 Views
15 Pages

Closed-Form Expressions to Estimate the Mean and Variance of the Total Vector Error

  • Alessandro Mingotti,
  • Federica Costa,
  • Lorenzo Peretto and
  • Roberto Tinarelli

30 July 2021

The need for accurate measurements and for estimating the uncertainties associated with measures are two pillars for researchers and metrologists. This is particularly true in distribution networks due to a mass deployment of new intelligent electron...

  • Article
  • Open Access
2 Citations
2,019 Views
12 Pages

With the increased push for personalized medicine, researchers and clinicians have begun exploring the use of wearable sensors to track patient activity. These sensors typically prioritize device life over robust onboard analysis, which results in lo...

(This article belongs to the Special Issue Body-Worn Sensors for Biomedical Applications)
  • Article
  • Open Access
7 Citations
6,530 Views
15 Pages

The demand for energy-efficient housing is on the rise in Egypt. The information about the individual materials used in the construction of typical residential wall assemblies are known in the literature. However, data from lab tests to validate the...

  • Article
  • Open Access
1 Citations
2,157 Views
13 Pages

20 March 2024

Brushstroke segmentation algorithms are critical in computer-based analysis of fine motor control via handwriting, drawing, or tracing tasks. Current segmentation approaches typically rely only on one type of feature, either spatial, temporal, kinema...

(This article belongs to the Special Issue Algorithms for Computer Aided Diagnosis)
  • Article
  • Open Access
1 Citations
1,046 Views
34 Pages

15 January 2026

Accurate mapping of localization error distribution is essential for assessing passive sensor systems and guiding sensor placement. However, conventional analytical methods like the Geometrical Dilution of Precision (GDOP) rely on idealized error mod...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
20 Citations
3,609 Views
19 Pages

Very Short-Term Load Forecaster Based on a Neural Network Technique for Smart Grid Control

  • Fermín Rodríguez,
  • Fernando Martín,
  • Luis Fontán and
  • Ainhoa Galarza

6 October 2020

Electrical load forecasting plays a crucial role in the proper scheduling and operation of power systems. To ensure the stability of the electrical network, it is necessary to balance energy generation and demand. Hence, different very short-term loa...

(This article belongs to the Special Issue Time Series Forecasting for Energy Consumption)
  • Article
  • Open Access
482 Views
19 Pages

Analysis of Plane-of-Array Irradiance Sensitivity to Solar Resource Database Biases

  • Julio Romel Martinez-Bolanos,
  • Alex R. A. Manito,
  • Rodrigo P. Maruyama,
  • Renzo Vargas and ,
  • Teddy A. F. Meléndez,
  • Marcelo Pinho Almeida,
  • Roberto Zilles and
  • Rafael H. Alonso
  • + 3 authors+ 0 author

9 July 2026

Solar resource databases used for estimating the plane-of-array irradiance for small- and medium-scale distributed photovoltaic (PV) systems are typically selected exclusively based on global horizontal irradiance bias. Since the databases are usuall...

(This article belongs to the Section A2: Solar Energy and Photovoltaic Systems)
  • Article
  • Open Access
542 Views
24 Pages

Multi-Error Coupling Simulation for ToF 3D Imaging Based on Optical Path Unit Decomposition

  • Gang Chen,
  • Wuyang Zhang,
  • Xubing Kang,
  • Junming Zhang and
  • Xuanquan Wang

Time-of-Flight (ToF) 3D imaging suffers from diverse systematic and non-systematic errors that limit its practical performance and reliability. Reliable simulation is critical for understanding these error mechanisms and guiding performance improveme...

  • Article
  • Open Access
5 Citations
3,286 Views
12 Pages

A Case Study of a Laser Beam Welding Model for the Welding of Inconel 718 Sheets of a Dissimilar Thickness

  • Oihane Murua,
  • Jon Iñaki Arrizubieta,
  • Aitzol Lamikiz and
  • Heinz Ingo Schneider

19 July 2024

Laser beam welding (LBW) is a highly demanded process for premium-quality joints in aeronautic, energy, or industrial sectors, where flexibility and low-heat-affected zones are required. One of the main applications of LBW in the near future is expec...

(This article belongs to the Section Welding and Joining)
  • Article
  • Open Access
9 Citations
4,437 Views
23 Pages

Short-Term Forecasting of Energy Production for a Photovoltaic System Using a NARX-CVM Hybrid Model

  • Eduardo Rangel-Heras,
  • César Angeles-Camacho,
  • Erasmo Cadenas-Calderón and
  • Rafael Campos-Amezcua

13 April 2022

In this paper, a methodology for short-term forecasting of power generated by a photovoltaic module is reported. The method incorporates a nonlinear autoregressive with exogenous inputs (NARX) fed by the solar radiation and temperature times series,...

(This article belongs to the Special Issue Solar and Wind Power and Energy Forecasting Ⅱ)
  • Proceeding Paper
  • Open Access
5 Citations
2,301 Views
6 Pages

A major barrier to wearables utility for kinematic analysis is convenience. Attachment to skin requires significant expertise and is time consuming. Instead this research applies principles of sensor analysis to clothing attachments, to examine tempo...

(This article belongs to the Proceedings of The 12th Conference of the International Sports Engineering Association)
  • Article
  • Open Access
12 Citations
8,720 Views
27 Pages

This paper develops a sampling algorithm for bandwidth estimation in a nonparametric regression model with continuous and discrete regressors under an unknown error density. The error density is approximated by the kernel density estimator of the uno...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,067 Views
20 Pages

Machine-Learning-Based Validation of Microsoft Azure Kinect in Measuring Gait Profiles

  • Claudia Ferraris,
  • Gianluca Amprimo,
  • Serena Cerfoglio,
  • Giulia Masi and ,
  • Luca Vismara and
  • Veronica Cimolin
  • + 1 author+ 0 author

29 November 2024

Gait is one of the most extensively studied motor tasks using motion capture systems, the gold standard for instrumental gait analysis. Various sensor-based solutions have been recently proposed to evaluate gait parameters, typically providing lower...

(This article belongs to the Special Issue Artificial Intelligence Methods for Biomedical Data Processing)
  • Article
  • Open Access
1 Citations
658 Views
23 Pages

Neural Network Regression Structural Hyperparameter Selection Using Reconstruction Error Minimization (REM)

  • Soosan Beheshti,
  • Mahdi Shamsi,
  • Miaosen Zhou,
  • Yashar Naderahmadian and
  • Younes Sadat-Nejad

Structural hyperparameter selection (HPS) in neural network (NN) regression faces two critical, computationally expensive barriers: the mandatory splitting of datasets for validation, which significantly impairs sample efficiency, and the inability o...

  • Article
  • Open Access
14 Citations
3,870 Views
19 Pages

Estimating Grassland Carbon Stocks in Hulunber China, Using Landsat8 Oli Imagery and Regression Kriging †

  • Lei Ding,
  • Zhenwang Li,
  • Xu Wang,
  • Ruirui Yan and ,
  • Beibei Shen,
  • Baorui Chen and
  • Xiaoping Xin
  • + 2 authors+ 0 author

5 December 2019

Accurately estimating grassland carbon stocks is important in assessing grassland productivity and the global carbon balance. This study used the regression kriging (RK) method to estimate grassland carbon stocks in Northeast China based on Landsat8...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
19 Citations
7,012 Views
13 Pages

Is the Side Bridge Test Valid and Reliable for Assessing Trunk Lateral Flexor Endurance in Recreational Female Athletes?

  • Casto Juan-Recio,
  • Amaya Prat-Luri,
  • Alberto Galindo,
  • Agustín Manresa-Rocamora and ,
  • David Barbado and
  • Francisco J. Vera-Garcia
  • + 1 author+ 0 author

12 July 2022

The side bridge test (SBT) is one of the most popular tests to assess isometric trunk lateral flexor endurance. The aim of this study was to assess the validity and reliability of the SBT in healthy females. Twenty-four (24.58 ± 3.92 years) ph...

(This article belongs to the Special Issue New Frontiers of Sport, Exercise and Physical Activity for Health and Human Performance)
  • Article
  • Open Access
31 Citations
14,693 Views
15 Pages

31 August 2021

Velocity-based training (VBT) is a resistance training method by which training variables are manipulated based on kinematic outcomes, e.g., barbell velocity. The better precision for monitoring and manipulating training variables ascribed to VBT ass...

(This article belongs to the Special Issue Strength and Conditioning and Performance Monitoring in Sports)
  • Perspective
  • Open Access
37 Citations
10,552 Views
10 Pages

16 February 2024

The ground reference dataset used in the assessment of classification accuracy is typically assumed implicitly to be perfect (i.e., 100% correct and representing ground truth). Rarely is this assumption valid, and errors in the ground dataset can cau...

  • Article
  • Open Access
5 Citations
1,452 Views
23 Pages

DEM-Based Parameter Calibration of Soils with Varying Moisture Contents in Southern Xinjiang Peanut Cultivation Zones

  • Wen Zhou,
  • Hui Guo,
  • Yu Zhang,
  • Xiaoxu Gao and ,
  • Chuntian Yang and
  • Tianlun Wu
  • + 1 author+ 0 author

3 September 2025

To address the insufficient adaptability of imported peanut harvesting equipment’s soil-engaging components to the specific soil conditions in Xinjiang, this study conducted Discrete Element Method (DEM)-based calibration of soil mechanical par...

(This article belongs to the Section Agricultural Soils)
  • Article
  • Open Access
1 Citations
1,070 Views
14 Pages

24 April 2025

In modern steel structures such as bridges and buildings, curved members are increasingly adopted. Current industry practices often approximate mildly curved surfaces with flat plates within tolerances, but optimizing this substitution to minimize fi...

(This article belongs to the Special Issue Intelligence Techniques Applied in Infrastructure, Engineering and Construction)
  • Article
  • Open Access
4 Citations
2,273 Views
26 Pages

Validation of a Heat Pump System Model for Energy Recycling in Grocery Stores Through On-Site Energy Monitoring

  • Niklas Söderholm,
  • Mikko Gröndahl,
  • Tuomo Niemelä,
  • Juha Jokisalo and ,
  • Risto Kosonen and
  • Long Ni
  • + 1 author+ 0 author

19 February 2025

This paper presents a validated simulation model for heat pump-based energy recycling systems, with a focus on heat recovery applications in grocery stores. Heat is recovered through heat pumps from a subcritical CO2-based refrigeration system, with...

(This article belongs to the Section J: Thermal Management)
  • Article
  • Open Access
4 Citations
1,872 Views
13 Pages

This paper presents a dynamic model for full-power converter permanent magnet synchronous wind turbines based on Physics-Informed Neural Networks (PINNs). The model integrates the physical dynamics of the wind turbine directly into the loss function,...

  • Article
  • Open Access
7 Citations
3,188 Views
12 Pages

Constructing a Model to Discriminate the Workload Level of Ship Interface Operators

  • Shengyuan Yan,
  • Yingying Wei,
  • Fengjiao Li and
  • Cong Chi Tran

Workload level has a significant impact on the human errors of ship operators. Therefore, the accurate discrimination of the operator’s workload level has an important effect on preventing human errors. Firstly, this study analyzed the differen...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
1,270 Views
18 Pages

4 August 2025

Model-based sensorless control of interior permanent-magnet synchronous motors (IPMSMs) typically employs an estimation observer with embedded position information, followed by a position extraction process. Although a type-2 phase-locked loop (PLL)...

(This article belongs to the Section Control Systems)
  • Article
  • Open Access
7 Citations
3,036 Views
22 Pages

21 April 2024

Frequency synchronization error, as one of the inevitable technical challenges in distributed synthetic aperture radar (SAR), has different impacts on different SAR systems. Multi-monostatic SAR is a typical distributed configuration where frequency...

  • Article
  • Open Access
4 Citations
3,188 Views
17 Pages

Multi-Scenario Validation and Assessment of a Particulate Matter Sensor Monitor Optimized by Machine Learning Methods

  • Hao Tang,
  • Yunfei Cai,
  • Song Gao,
  • Jin Sun and ,
  • Zhukai Ning,
  • Zhenghao Yu,
  • Jun Pan and
  • Zhuohui Zhao
  • + 3 authors+ 0 author

27 May 2024

Objective: The aim was to evaluate and optimize the performance of sensor monitors in measuring PM2.5 and PM10 under typical emission scenarios both indoors and outdoors. Method: Parallel measurements and comparisons of PM2.5 and PM10 were carried ou...

(This article belongs to the Section Environmental Sensing)
  • Article
  • Open Access
6 Citations
3,673 Views
26 Pages

3 December 2020

Knowledge of the propagation of sensor errors in strapdown inertial navigation is crucial for the design of inertial and integrated navigation systems. The propagation of initialization errors and deterministic sensor errors is well covered in the li...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
17 Citations
3,991 Views
23 Pages

9 June 2023

The shape of corn seeds not being spherical affects their mobility. This study focuses on modeling the typically shaped corn seeds and calibrating the coefficient of rolling friction for different shape types to improve simulation reliability. By ana...

(This article belongs to the Topic Research Progress in Key Technologies of Planting and Harvesting Machinery)
  • Article
  • Open Access
5 Citations
4,255 Views
16 Pages

31 January 2024

For time series forecasting, multivariate grey models are excellent at handling incomplete or vague information. The GM(1, N) model represents this group of models and has been widely used in various fields. However, constructing a meaningful GM(1, N...

(This article belongs to the Special Issue AI in Statistical Data Analysis)
  • Article
  • Open Access
17 Citations
225 Views

The Reliability of Clinical and Caliper-Based Calcaneal Bisection Measurements

  • Stephan J. LaPointe,
  • Charles Peebles,
  • Aprajita Nakra and
  • Howard Hillstrom

The measurements of subtalar joint neutral position and hindfoot range of motion have been shown to be unreliable. The first step in making these measurements is to determine the calcaneal bisection. This study examines the reliability of bisecting t...

  • Article
  • Open Access
1,108 Views
20 Pages

Data-Driven Sensorless Rotor Position Estimation for Switched Reluctance Motors Using a Deep LSTM Network

  • Bekir Gecer,
  • Alper Nabi Akpolat,
  • Necibe Fusun Oyman Serteller,
  • Ozturk Tosun and
  • Mehmet Gol

Advances in semiconductor technologies, particularly in power transistors and switching diodes, have enabled higher switching frequencies and converter efficiency, renewing interest in Switched Reluctance Motors (SRMs) for electric vehicles. This wor...

(This article belongs to the Special Issue Recent Advances and Applications in Electric Machines Design, Modelling, Control, and Operation, 2nd Edition)
  • Article
  • Open Access
27 Citations
5,651 Views
20 Pages

26 May 2020

With the increasing demand of location-based services, the indoor ranging method based on Wi-Fi has become an important technique due to its high accuracy and low hardware requirements. The complicated indoor environment makes it difficult for wirele...

(This article belongs to the Special Issue Recent Advances in Indoor Localization Systems and Technologies)
  • Article
  • Open Access
38 Citations
7,226 Views
22 Pages

Evaluation and Optimization of Task-oriented Measurement Uncertainty for Coordinate Measuring Machines Based on Geometrical Product Specifications

  • Yinbao Cheng,
  • Zhongyu Wang,
  • Xiaohuai Chen,
  • Yaru Li and ,
  • Hongyang Li,
  • Hongli Li and
  • Hanbin Wang
  • + 2 authors+ 0 author

20 December 2018

Measuring instruments are intended to be intelligent, precise, multi-functional and developing multidirectionally, scientific, and reasonable; the reliable evaluation of measurement uncertainty of precision instruments is also becoming more and more...

(This article belongs to the Special Issue Precision Dimensional Measurements)
  • Article
  • Open Access
6 Citations
2,683 Views
12 Pages

25 October 2024

Background/Objectives: This study evaluated the clinical utility of a virtual reality (VR)-based kitchen error task for children (VKET-C) to assess functional cognition in children. Methods: In total, 38 children aged 7–12 years were included,...

(This article belongs to the Section Pediatric Neurology & Neurodevelopmental Disorders)
  • Article
  • Open Access
8 Citations
3,626 Views
29 Pages

The dynamic error is the dominant factor affecting multi-axis CNC machining accuracy. Predicting and compensating for dynamic errors is vital in high-speed machining. This paper proposes a novel prediction-model-based approach to predict and compensa...

(This article belongs to the Section Automation and Control Systems)
  • Article
  • Open Access
10 Citations
6,670 Views
28 Pages

Ambulatory Monitoring of Subglottal Pressure Estimated from Neck-Surface Vibration in Individuals with and without Voice Disorders

  • Juan P. Cortés,
  • Jon Z. Lin,
  • Katherine L. Marks,
  • Víctor M. Espinoza and ,
  • Emiro J. Ibarra,
  • Matías Zañartu,
  • Robert E. Hillman and
  • Daryush D. Mehta
  • + 3 authors+ 0 author

22 October 2022

The aerodynamic voice assessment of subglottal air pressure can discriminate between speakers with typical voices from patients with voice disorders, with further evidence validating subglottal pressure as a clinical outcome measure. Although estimat...

(This article belongs to the Special Issue Current Trends and Future Directions in Voice Acoustics Measurement)
  • Article
  • Open Access
7 Citations
2,341 Views
17 Pages

A Robust Nonlinear Controller for PMSG Wind Turbines

  • Nicholas Hawkins and
  • Michael L. McIntyre

11 February 2021

In this paper, a nonlinear backstepping controller is proposed to manage the performance of a full-variable permanent magnet synchronous generator wind turbine. This nonlinear controller achieves a rotational speed objective for the generator and is...

(This article belongs to the Special Issue Advanced Control Applications for Electrical Energy Systems)
  • Article
  • Open Access
3 Citations
2,649 Views
20 Pages

8 January 2024

Collating vast test reports is a time-consuming and laborious task in crowdsourced testing. Crowdsourced test reports are usually presented in two ways, one as text and the other as images, which have symmetrical content. Researchers have proposed ma...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
9 Citations
4,527 Views
22 Pages

30 May 2023

Fire spread behavior models are used to estimate fire behavior metrics, fire hazard, exposure, and risk across the landscape. One of the most widely used fire spread models is the minimum travel time (MTT), which requires a very time-consuming, inter...

  • Article
  • Open Access
2 Citations
896 Views
19 Pages

13 October 2025

Ultra-short-term wind power exhibits significant minute-level fluctuation characteristics, leading to substantial instantaneous prediction errors. To mitigate the impact of instantaneous wind power prediction errors, the following steps are taken: Fi...

(This article belongs to the Section Energy Systems)
  • Article
  • Open Access
4 Citations
2,631 Views
14 Pages

21 March 2025

Proprioceptive deficits can lead to impaired motor performance. Therefore, accurately measuring proprioceptive function in order to identify deficits as soon as possible is important. Techniques based on deep learning to track body landmarks in simpl...

(This article belongs to the Special Issue Intelligent Rehabilitation and Assistive Robotics)
  • Article
  • Open Access
4 Citations
4,741 Views
44 Pages

12 May 2017

There are wireless networks in which typically communications are unsafe. Most terrestrial wireless sensor networks belong to this category of networks. Another example of an unsafe communication network is an underwater acoustic sensor network (UWAS...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
5 Citations
3,218 Views
24 Pages

FGCSQL: A Three-Stage Pipeline for Large Language Model-Driven Chinese Text-to-SQL

  • Guanyu Jiang,
  • Weibin Li,
  • Chenglong Yu,
  • Zixuan Zhu and
  • Wei Li

Recent advances in large language models have driven major breakthroughs in Text-to-SQL tasks. However, many challenges hinder the use of SQL parsers for cross-language tasks. In this article, we introduce FGCSQL, a novel three-stage pipeline framewo...

  • Article
  • Open Access
339 Views
20 Pages

Reliable manual annotations for Vietnamese logistics calls are scarce, and telephone channel degradation compounds errors in business-critical entities. Existing adaptation methods typically optimize aggregate transcription accuracy, use uniform toke...

(This article belongs to the Section Large Language Models and Embodied Intelligence)
  • Article
  • Open Access
6 Citations
3,896 Views
17 Pages

Validation of Nadir SWH and Its Variance Characteristics from CFOSAT in China’s Offshore Waters

  • Jingwei Xu,
  • Huanping Wu,
  • Ying Xu,
  • Nikolay V. Koldunov and ,
  • Xiuzhi Zhang,
  • Lisha Kong,
  • Min Xu,
  • Klaus Fraedrich and
  • Xiefei Zhi
  • + 4 authors+ 0 author

11 February 2023

The offshore waters of China are a typical monsoon−affected area where the significant wave height (SWH) is strongly influenced by the different seasonal mean flow in winter and summer. However, limited in situ validations of the SWH have been...

(This article belongs to the Special Issue Remote Sensing for the Improvement of High-Impact Weather Analyses and Forecasts)
  • Article
  • Open Access
24 Citations
4,897 Views
16 Pages

The Utilization of Artificial Neural Network Equalizer in Optical Camera Communications

  • Othman Isam Younus,
  • Navid Bani Hassan,
  • Zabih Ghassemlooy,
  • Stanislav Zvanovec and ,
  • Luis Nero Alves and
  • Hoa Le-Minh
  • + 1 author+ 0 author

16 April 2021

In this paper, we propose and validate an artificial neural network-based equalizer for the constant power 4-level pulse amplitude modulation in an optical camera communications system. We introduce new terminology to measure the quality of the commu...

(This article belongs to the Special Issue Visible Light Communication, Networking, and Sensing)

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