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799 Results Found

  • Article
  • Open Access
53 Citations
9,930 Views
19 Pages

HSV Color-Space-Based Automated Object Localization for Robot Grasping without Prior Knowledge

  • Hyun-Chul Kang,
  • Hyo-Nyoung Han,
  • Hee-Chul Bae,
  • Min-Gi Kim and ,
  • Ji-Yeon Son and
  • Young-Kuk Kim
  • + 1 author+ 0 author

18 August 2021

We propose a simple and robust HSV color-space-based algorithm that can automatically extract object position information without human intervention or prior knowledge. In manufacturing sites with high variability, it is difficult to recognize produc...

(This article belongs to the Special Issue Smart Manufacturing Technology)
  • Article
  • Open Access
18 Views
24 Pages

Effective diagnosis of electric bearing faults, especially weak early-stage faults, remains challenging due to complex rotational-speed conditions and external noise. Although the velocity-guided chirplet transform (VGCT) can effectively characterize...

(This article belongs to the Section Propulsion Systems and Components)
  • Letter
  • Open Access
13 Citations
4,339 Views
16 Pages

29 September 2020

We study the foot plantar sensor placement by a deep reinforcement learning algorithm without using any prior knowledge of the foot anatomical area. To apply a reinforcement learning algorithm, we propose a sensor placement environment and reward sys...

(This article belongs to the Section Wearables)
  • Article
  • Open Access
11 Citations
3,800 Views
23 Pages

This paper develops the model of the joint phantom track deception and the joint techniques of time-difference of arrival (TDOA) and frequency-difference of arrival (FDOA) localization to deceive air defense radar networks under the condition that an...

(This article belongs to the Special Issue Latest Theoretical and Technological Advancements in Nonlinear Adaptive Control and Decision-Making)
  • Article
  • Open Access
28 Citations
2,894 Views
19 Pages

13 February 2021

The aim of this paper is to formulate and analyze a cyclic iterative algorithm in real Hilbert spaces which converges strongly to a common solution of fixed point problem and multiple-sets split common fixed point problem involving demicontractive op...

(This article belongs to the Special Issue Fixed Point, Optimization, and Applications)
  • Article
  • Open Access
830 Views
20 Pages

26 February 2026

Virtual reality offers unprecedented experiences and serves as a new learning tool. However, limited research has examined how this novel visual experience influences cognitive processes. This study described a conceptual theoretical framework of vis...

  • Article
  • Open Access
20 Citations
3,633 Views
20 Pages

Currently, using semantic segmentation networks to distinguish dynamic and static key points has become a mainstream designing method for semantic SLAM systems. However, the semantic SLAM systems must have prior semantic knowledge of relevant dynamic...

(This article belongs to the Special Issue Beetle Antennae Search (BAS) Algorithm's Variants and Application)
  • Article
  • Open Access
1 Citations
2,609 Views
20 Pages

Approximations of an Equilibrium Problem without Prior Knowledge of Lipschitz Constants in Hilbert Spaces with Applications

  • Chainarong Khanpanuk,
  • Nuttapol Pakkaranang,
  • Nopparat Wairojjana and
  • Nattawut Pholasa

27 April 2021

The objective of this paper is to introduce an iterative method with the addition of an inertial term to solve equilibrium problems in a real Hilbert space. The proposed iterative scheme is based on the Mann-type iterative scheme and the extragradien...

(This article belongs to the Special Issue Numerical Analysis and Computational Mathematics)
  • Article
  • Open Access
5 Citations
5,306 Views
14 Pages

Camouflaged Object Detection That Does Not Require Additional Priors

  • Yuchen Dong,
  • Heng Zhou,
  • Chengyang Li,
  • Junjie Xie and ,
  • Yongqiang Xie and
  • Zhongbo Li
  • + 1 author+ 0 author

21 March 2024

Camouflaged object detection (COD) is an arduous challenge due to the striking resemblance of camouflaged objects to their surroundings. The abundance of similar background information can significantly impede the efficiency of camouflaged object det...

  • Article
  • Open Access
6 Citations
3,439 Views
16 Pages

8 January 2023

To meet the demand for the aerosol detection of single-angle and multi-band polarization instrument containing short-wave infrared bands, an inversion algorithm that makes full use of multi-band intensity and polarization information is proposed base...

(This article belongs to the Special Issue Aerosol and Atmospheric Correction)
  • Article
  • Open Access
6 Citations
2,388 Views
16 Pages

Multi-Source Information Fusion Diagnosis Method for Aero Engine

  • Kai Yin,
  • Yawen Shen,
  • Yifan Chen and
  • Huisheng Zhang

2 May 2025

Aero engines are complex coupled systems in which faults in one subsystem can propagate and affect the performance of others. Relying on single-source performance parameters is often insufficient for accurately assessing component degradation. Althou...

  • Communication
  • Open Access
15 Citations
3,441 Views
12 Pages

Stochastic Resonance with Parameter Estimation for Enhancing Unknown Compound Fault Detection of Bearings

  • Min Xu,
  • Chao Zheng,
  • Kelei Sun,
  • Li Xu and ,
  • Zijian Qiao and
  • Zhihui Lai
  • + 1 author+ 0 author

10 April 2023

Although stochastic resonance (SR) has been widely used to enhance weak fault signatures in machinery and has obtained remarkable achievements in engineering application, the parameter optimization of the existing SR-based methods requires the quanti...

(This article belongs to the Special Issue Intelligent Sensors for Structural Health Monitoring and Mechanical Fault Diagnosis)
  • Article
  • Open Access
8 Citations
5,324 Views
12 Pages

Analysis of Spanish Parents’ Knowledge about ASD and Their Attitudes towards Inclusive Education

  • Irene Gómez-Marí,
  • Raúl Tárraga-Mínguez and
  • Gemma Pastor-Cerezuela

To make possible the inclusion of children with autism spectrum disorder (ASD) in mainstream settings, parental knowledge and attitudes towards the disorder play a key role between the home and the school setting. However, prior literature has not ca...

(This article belongs to the Special Issue Factors Related to School Coexistence at Different Educational Stages)
  • Article
  • Open Access
6 Citations
4,919 Views
19 Pages

21 November 2021

In sensor-based human activity recognition, many methods based on convolutional neural networks (CNNs) have been proposed. In the typical CNN-based activity recognition model, each class is treated independently of others. However, actual activity cl...

(This article belongs to the Topic Artificial Intelligence in Sensors)
  • Article
  • Open Access
7 Citations
3,937 Views
14 Pages

A wireless communication intelligent anti-jamming decision algorithm based on Deep Reinforcement Learning (DRL) can gradually optimize communication anti-jamming strategies without prior knowledge by continuously interacting with the jamming environm...

  • Article
  • Open Access
24 Citations
5,284 Views
26 Pages

6 December 2020

The clustering analysis algorithm is used to reveal the internal relationships among the data without prior knowledge and to further gather some data with common attributes into a group. In order to solve the problem that the existing algorithms alwa...

  • Feature Paper
  • Article
  • Open Access
7 Citations
3,771 Views
18 Pages

13 December 2023

This study focuses on addressing the tracking control problem for a coaxial unmanned aerial vehicle (UAV) without any prior knowledge of its dynamic model. To overcome the limitations of model-based control, a model-free approach based on terminal sl...

(This article belongs to the Topic Target Tracking, Guidance, and Navigation for Autonomous Systems)
  • Article
  • Open Access
18 Citations
5,783 Views
13 Pages

24 September 2020

Conventional control of robotic manipulators requires prior knowledge of their kinematic structure. Model-learning controllers have the advantage of being able to control robots without requiring a complete kinematic model and work well in less struc...

(This article belongs to the Section AI in Robotics)
  • Article
  • Open Access
1 Citations
1,472 Views
24 Pages

Extraneous details in visual representations can prompt children to use well-rehearsed, yet inappropriate, strategies that can hinder mathematics learning. Prior domain knowledge can reduce the negative effects of extraneous details in instructional...

(This article belongs to the Section Education and Psychology)
  • Article
  • Open Access
3,615 Views
11 Pages

Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students

  • Laura María Martínez-Sánchez,
  • Cecilio Parra-Martínez,
  • Tomás Eugenio Martínez-García and
  • Concha Martínez-García

17 December 2021

Psychophysical methods allow us to measure the relationship between stimuli and sensory perception. Of these, Detection Threshold (DT) allows us to know the minimum concentration to produce taste identification. Given this, we wonder whether, for exa...

(This article belongs to the Special Issue Chemosensory Perception in Food)
  • Article
  • Open Access
1 Citations
2,097 Views
12 Pages

HIV/AIDS-Associated Knowledge and Attitudes towards Treating Disadvantaged Communities among Pre-Community-Based Dental Education Dental Students in the U.S.

  • Aditi Tomar,
  • Hannah Balcezak,
  • Shirley Lewis Miranda,
  • Marie C. Latortue and ,
  • Richa Chinchkhandi and
  • Lisa Wigfall
  • + 1 author+ 0 author

This study examines HIV/AIDS-associated knowledge and attitudes towards treating disadvantaged communities among predoctoral dental students in U.S. dental schools who have not yet commenced their Community-Based Dental Education (CBDE) training. It...

(This article belongs to the Section Behavioral and Mental Health)
  • Article
  • Open Access
5 Citations
6,119 Views
14 Pages

Image Segmentation by Searching for Image Feature Density Peaks

  • Zhe Sun,
  • Meng Qi,
  • Jian Lian,
  • Weikuan Jia and ,
  • Wei Zou,
  • Yunlong He,
  • Hong Liu and
  • Yuanjie Zheng
  • + 3 authors+ 0 author

13 June 2018

Image segmentation attempts to classify the pixels of a digital image into multiple groups to facilitate subsequent image processing. It is an essential problem in many research areas such as computer vision and image processing application. A large...

(This article belongs to the Special Issue Advanced Intelligent Imaging Technology)
  • Article
  • Open Access
1 Citations
1,776 Views
15 Pages

16 August 2024

In optical sparse projection reconstruction, the reconstruction of the tested field often requires the utilization of a priori knowledge to compensate for the lack of information due to the sparse projection angle. For situations where the radiation...

  • Article
  • Open Access
6 Citations
4,211 Views
19 Pages

Learning Autonomous Navigation in Unmapped and Unknown Environments

  • Naifeng He,
  • Zhong Yang,
  • Chunguang Bu,
  • Xiaoliang Fan and ,
  • Jiying Wu,
  • Yaoyu Sui and
  • Wenqiang Que
  • + 2 authors+ 0 author

12 September 2024

Autonomous decision-making is a hallmark of intelligent mobile robots and an essential element of autonomous navigation. The challenge is to enable mobile robots to complete autonomous navigation tasks in environments with mapless or low-precision ma...

(This article belongs to the Topic Unmanned Vehicles Technology and Embodied Intelligence Systems for Intelligent Transportation)
  • Article
  • Open Access
2 Citations
1,210 Views
36 Pages

28 October 2025

Massive machine-type communications (mMTC) in future 6G networks will involve a vast number of devices with sporadic traffic. Grant-free access has emerged as an effective strategy to reduce the access latency and processing overhead by allowing devi...

(This article belongs to the Topic Advances in Sixth Generation and Beyond (6G&B))
  • Article
  • Open Access
517 Views
15 Pages

Multi-target imaging beyond the optical memory effect (OME) is fundamentally challenged by the incoherent superposition of speckles originating from different OME regions, which renders object separation highly ill-posed. To address this challenge, w...

(This article belongs to the Section Optical Interaction Science)
  • Article
  • Open Access
11 Citations
7,909 Views
21 Pages

Simultaneous Localization And Mapping (SLAM) usually assumes the robot starts without knowledge of the environment. While prior information, such as emergency maps or layout maps, is often available, integration is not trivial since such maps are oft...

  • Article
  • Open Access
48 Citations
12,265 Views
21 Pages

Drift-Free Position Estimation of Periodic or Quasi-Periodic Motion Using Inertial Sensors

  • Win Tun Latt,
  • Kalyana Chakravarthy Veluvolu and
  • Wei Tech Ang

31 May 2011

Position sensing with inertial sensors such as accelerometers and gyroscopes usually requires other aided sensors or prior knowledge of motion characteristics to remove position drift resulting from integration of acceleration or velocity so as to ob...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
15 Citations
4,788 Views
20 Pages

DCKT: A Novel Dual-Centric Learning Model for Knowledge Tracing

  • Yixuan Chen,
  • Shuang Wang,
  • Fan Jiang,
  • Yaxin Tu and
  • Qionghao Huang

6 December 2022

Knowledge tracing (KT), aiming to model learners’ mastery of a concept based on their historical learning records, has received extensive attention due to its great potential in realizing personalized learning in intelligent tutoring systems. H...

(This article belongs to the Collection Science Education Promoting Sustainability)
  • Article
  • Open Access
2,213 Views
17 Pages

Youth Mental Health First Aid (YMHFA) is a widely adopted professional development tool that helps educators across the United States improve their mental health literacy. Data from a pretest/posttest evaluation of the YMHFA training delivered at fiv...

(This article belongs to the Special Issue STEM, Arts, and Special Education: Teacher Education Partnerships and Professional Development)
  • Article
  • Open Access
14 Citations
3,547 Views
12 Pages

Medical and Dental Students’ Perception of Interdisciplinary Knowledge, Teaching Content, and Interprofessional Status at a German University: A Cross-Sectional Study

  • Berit Hackenberg,
  • Maximilian-Niclas Schlich,
  • Haralampos Gouveris,
  • Christopher Seifen and ,
  • Christoph Matthias,
  • Guglielmo Campus,
  • Thomas Gerhard Wolf,
  • Muthuraman Muthuraman and
  • James Deschner
  • + 4 authors+ 0 author

Although oral health is considered a key indicator of overall health, dentistry is still neglected in medical education at the university level. Interprofessional education (IPE) is an important tool to promote collaboration among health care provide...

(This article belongs to the Special Issue Changing Dental Profession – Modern Forms and Challenges in Dental Practice)
  • Article
  • Open Access
1 Citations
1,856 Views
18 Pages

Shrinkage Testimator for the Common Mean of Several Univariate Normal Populations

  • Peter M. Mphekgwana,
  • Yehenew G. Kifle and
  • Chioneso S. Marange

5 April 2024

The challenge of combining two unbiased estimators is a common occurrence in applied statistics, with significant implications across diverse fields such as manufacturing quality control, medical research, and the social sciences. Despite the widespr...

(This article belongs to the Section D1: Probability and Statistics)
  • Article
  • Open Access
3 Citations
6,500 Views
15 Pages

18 February 2021

Variational graph autoencoder, which can encode structural information and attribute information in the graph into low-dimensional representations, has become a powerful method for studying graph-structured data. However, most existing methods based...

(This article belongs to the Section Big Data and Augmented Intelligence)
  • Article
  • Open Access
7 Citations
2,767 Views
23 Pages

Varying Amplitude Vibration Phase Suppression Algorithm in ISAL Imaging

  • Hongfei Yin,
  • Liang Guo,
  • Yachao Li,
  • Liang Han and ,
  • Mengdao Xing and
  • Xiaodong Zeng
  • + 1 author+ 0 author

24 February 2022

Platform vibration introduces sinusoidal modulation in inverse synthetic aperture lidar (ISAL) imaging, which causes paired echoes in ISAL imaging. In this paper, a varying amplitude vibration phase suppression algorithm is proposed. Working without...

(This article belongs to the Topic High-Resolution Earth Observation Systems, Technologies, and Applications)
  • Article
  • Open Access
388 Views
30 Pages

A Self-Evolving Physics-Constrained Multi-Round Strain Augmentation Framework for Sparse-Data iFEM Shape Sensing of Ship Plate Structures

  • Junkang Xia,
  • Wei Cai,
  • Zejun An,
  • Jingyan Zhu and ,
  • Haixiao Hu,
  • Dongfeng Cao,
  • Kailing Guo and
  • Shuxin Li
  • + 3 authors+ 0 author

7 September 2026

Accurate reconstruction of thin-walled marine structures, such as ship hull plates and stiffened panels, via the conventional inverse Finite Element Method (iFEM) is severely limited by strain data scarcity in real-world deployments. Existing augment...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
487 Views
25 Pages

This paper focuses on state estimation for nonlinear stochastic systems with multiple switching models, especially under challenging conditions where the model dynamics are unknown and the transition probability matrix is uniformly distributed. Gauss...

  • Article
  • Open Access
10 Citations
3,449 Views
13 Pages

Incremental Learning of Human Activities in Smart Homes

  • Sook-Ling Chua,
  • Lee Kien Foo,
  • Hans W. Guesgen and
  • Stephen Marsland

3 November 2022

Sensor-based human activity recognition has been extensively studied. Systems learn from a set of training samples to classify actions into a pre-defined set of ground truth activities. However, human behaviours vary over time, and so a recognition s...

(This article belongs to the Special Issue Human Activity Recognition in Smart Sensing Environment)
  • Article
  • Open Access
2 Citations
2,793 Views
22 Pages

1 April 2022

Nowadays, recommender systems are vital in lessening the information overload by filtering out unnecessary information, thus increasing comfort and quality of life. Matrix factorization (MF) is a well-known recommender system algorithm that offers go...

(This article belongs to the Special Issue Optimization Theory and Applications)
  • Article
  • Open Access
21 Citations
8,309 Views
34 Pages

This study investigates an Adaptive Feedback System (AFS) that integrates deep learning (a recurrent neural network trained with historical student data) and GPT-4 to provide personalized feedback in a Digital Art course. In a quasi-experimental desi...

(This article belongs to the Special Issue Innovative Theories and Practices for Designing and Evaluating Inclusive Educational Technology and Online Learning)
  • Article
  • Open Access
1 Citations
3,108 Views
38 Pages

29 December 2024

For general insurance pricing, aligning losses with accurate premiums is crucial for insurance companies’ competitiveness. Traditional actuarial models often face challenges like data heterogeneity and mismeasured covariates, leading to misspec...

(This article belongs to the Special Issue Novel Applications of Machine Learning and Bayesian Optimization)
  • Article
  • Open Access
6 Citations
3,171 Views
23 Pages

Blind Remote Sensing Image Deblurring Based on Overlapped Patches’ Non-Linear Prior

  • Ziyu Zhang,
  • Liangliang Zheng,
  • Wei Xu,
  • Tan Gao and ,
  • Xiaobin Wu and
  • Biao Yang
  • + 1 author+ 0 author

16 October 2022

The remote sensing imaging environment is complex, in which many factors cause image blur. Thus, without prior knowledge, the restoration model established to obtain clear images can only rely on the observed blurry images. We still build the prior w...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
3 Citations
1,854 Views
21 Pages

29 November 2023

In this article, we introduce a new subgradient extra-gradient algorithm to find the common element of a set of fixed points of a Bregman relatively nonexpansive mapping and the solution set of an equilibrium problem involving a Pseudomonotone and Br...

(This article belongs to the Special Issue Recent Trends in Convex Analysis and Mathematical Inequalities)
  • Article
  • Open Access
1 Citations
3,504 Views
17 Pages

This study examines the perception of insult-related vocabulary in Spanish among native speakers (L1) and Polish learners of Spanish as a foreign language (L2). Insults are analyzed as versatile speech acts fulfilling pragmatic functions such as impo...

(This article belongs to the Special Issue Exploring Linguistic Boundaries: From the Acquisition of Languages to Multilingual Practices)
  • Article
  • Open Access
3 Citations
2,287 Views
15 Pages

17 August 2022

Multi-purpose service robots must execute their tasks reliably in different situations, as well as learn from humans and explain their plans to them. We address these issues by introducing a knowledge representation scheme to facilitate skill general...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
4 Citations
3,707 Views
50 Pages

Uncertainty Introduced by Darkening Agents in the Lunar Regolith: An Unmixing Perspective

  • Marcel Hess,
  • Thorsten Wilhelm,
  • Christian Wöhler and
  • Kay Wohlfarth

21 November 2021

On the Moon, in the near infrared wavelength range, spectral diagnostic features such as the 1-μm and 2-μm absorption bands can be used to estimate abundances of the constituent minerals. However, there are several factors that can darken the o...

(This article belongs to the Special Issue Cartography of the Solar System: Remote Sensing beyond Earth)
  • Article
  • Open Access
14 Citations
3,700 Views
21 Pages

TAN: A Transferable Adversarial Network for DNN-Based UAV SAR Automatic Target Recognition Models

  • Meng Du,
  • Yuxin Sun,
  • Bing Sun,
  • Zilong Wu and ,
  • Lan Luo,
  • Daping Bi and
  • Mingyang Du
  • + 2 authors+ 0 author

16 March 2023

Recently, the unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) has become a highly sought-after topic for its wide applications in target recognition, detection, and tracking. However, SAR automatic target recognition (ATR) models based o...

(This article belongs to the Special Issue When Deep Learning Meets Geometry for Air-to-Ground Perception on Drones)
  • Review
  • Open Access
18 Citations
8,679 Views
24 Pages

12 February 2023

The global availability of information makes its selection difficult, but at the same time it allows for the construction of teaching without the particular prior knowledge of students. However, it requires teachers to learn new abilities, such as de...

(This article belongs to the Special Issue Effects of Learning Environments on Student Outcomes)
  • Article
  • Open Access
32 Citations
5,364 Views
22 Pages

Adaptive Thresholding of CNN Features for Maize Leaf Disease Classification and Severity Estimation

  • Harry Dzingai Mafukidze,
  • Godliver Owomugisha,
  • Daniel Otim,
  • Action Nechibvute and ,
  • Cloud Nyamhere and
  • Felix Mazunga
  • + 1 author+ 0 author

23 August 2022

Convolutional neural networks (CNNs) are the gold standard in the machine learning (ML) community. As a result, most of the recent studies have relied on CNNs, which have achieved higher accuracies compared with traditional machine learning approache...

(This article belongs to the Special Issue Computer Vision and Pattern Recognition Based on Deep Learning)
  • Article
  • Open Access
1,734 Views
14 Pages

23 July 2025

Background/Objectives: Migraine affects approximately 3–10% of school-aged children and up to 28% of adolescents, with prevalence increasing during adolescence. For pediatric specialty providers, increased awareness of this condition may influe...

(This article belongs to the Special Issue Pediatric Headaches: Diagnostic and Therapeutic Issues)
  • Article
  • Open Access
79 Citations
19,601 Views
17 Pages

An End-to-End Automated License Plate Recognition System Using YOLO Based Vehicle and License Plate Detection with Vehicle Classification

  • Reda Al-batat,
  • Anastassia Angelopoulou,
  • Smera Premkumar,
  • Jude Hemanth and
  • Epameinondas Kapetanios

4 December 2022

An accurate and robust Automatic License Plate Recognition (ALPR) method proves surprising versatility in an Intelligent Transportation and Surveillance (ITS) system. However, most of the existing approaches often use prior knowledge or fixed pre-and...

(This article belongs to the Section Vehicular Sensing)

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