Article
Operations Research & Management Science
Byunghoon Kim, Young-Seon Jeong, Myong K. Jeong
Summary: Uncertainty in data can arise from measurement errors, data incompleteness, and multiple repeated measurements in various applications. A new Bayesian classification model taking into account the correlation among uncertain features has been proposed to improve classification accuracy. New multivariate kernel density estimators have been developed to estimate the class conditional probability density function of uncertain data, leading to better classification accuracy compared to existing approaches.
ANNALS OF OPERATIONS RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Guang Yang, Yanli Zhao, Xiaohua Gu
Summary: Fault diagnosis is crucial for enhancing the reliability and security of complex chemical processes. A novel framework utilizing eKPCA, eNBM, and the DA algorithm is proposed in this article, showing superior performance compared to traditional methods such as deep learning.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Chemistry, Analytical
Xinmin Song, Weihua Wei, Junbo Zhou, Guojun Ji, Ghulam Hussain, Maohua Xiao, Guosheng Geng
Summary: A fault diagnosis model for rolling bearings based on a hybrid kernel support vector machine (SVM) and Bayesian optimization (BO) is proposed. The model effectively addresses the issue of ambiguous fault identification caused by the nonlinearity and nonstationarity of vibration signals. Experimental results show that the proposed model improves the fault diagnosis accuracy from 85% to 100% compared with direct input of vibration signals into SVM.
Article
Medicine, General & Internal
Theodora Chatzimichail, Aristides T. Hatjimihail
Summary: Medical diagnosis is crucial for treatment and management decisions in healthcare. This study developed a computational tool based on Bayesian inference to calculate the posterior probability of disease diagnosis and compare different distribution models.
Article
Computer Science, Information Systems
Chengyuan Sun, Yizhen Yin, Haobo Kang, Hongjun Ma
Summary: This paper proposes a novel distributed kernel principal component regression (DKPCR) approach to address quality-related process monitoring in modern industrial processes. The approach reduces data scale and tackles robustness issues caused by large outliers, and involves Bayesian inference and weight diagnosis methods for data processing and fault variable isolation.
INFORMATION SCIENCES
(2022)
Article
Automation & Control Systems
Ping Wu, Siwei Lou, Xujie Zhang, Jiajun He, Yichao Liu, Jinfeng Gao
Summary: A novel data-driven fault diagnosis method was proposed, combining deep learning and statistical analysis to achieve better fault classification results through deep neural networks and analysis of feature space.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2021)
Article
Engineering, Mechanical
Volker Schroeder, Christian Mueller, Alfons Esderts
Summary: This article introduces a method based on Monte Carlo Simulation to statistically evaluate any spectrum extrapolation method, allowing for arbitrary specification of the duration of service life spectrum and the extrapolation factor. The simulation model can also calculate statistically based safety factors for load assumption, eliminating the need for general, mostly conservative factors.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Thermodynamics
Yudong Xia, Qiang Ding, Nijie Jing, Yijia Tang, Aipeng Jiang, Shu Jiangzhou
Summary: This paper presents an enhanced fault detection method using kernel density estimation and kernel entropy component analysis algorithms for effective detection of water chiller faults. By optimizing bandwidth and determining control limits for fault monitoring, the proposed method showed the best performance in experimental data validation, achieving a fault detection ratio of over 68% and an average fault detection accuracy of over 90%.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Engineering, Electrical & Electronic
K. S. Krishna Veni, N. Senthil Kumar
Summary: In this article, bearing fault in induction motors is diagnosed using vibration signals and a simple artificial intelligence-based model. The proposed system accurately predicts bearing condition using Bayesian optimization-based ensemble classifier (BOEC), showing superior performance compared to other conventional techniques.
ELECTRICAL ENGINEERING
(2023)
Article
Mathematics, Interdisciplinary Applications
Dah-Chin Luor, Chiao-Wen Liu
Summary: This paper investigates fractal curve-fitting problems using kernel regression estimators. By applying the Nadaraya-Watson estimator, curve estimation for unknown functions with irregularity is conducted, and an estimation for the expectation is established. Additionally, a fractal perturbation corresponding to the estimator is constructed to fit the given data, with expectations estimated for the perturbation.
FRACTAL AND FRACTIONAL
(2022)
Article
Automation & Control Systems
Wei-Ting Yang, Marco S. Reis, Valeria Borodin, Michel Juge, Agnes Roussy
Summary: Process monitoring is critical in manufacturing industries. This paper proposes an interpretable unsupervised machine learning model based on Bayesian Networks (BN) for fault detection and diagnosis. The model combines data-driven induction with domain knowledge and displays causal interactions in a graphical form. The proposed fault detection scheme consists of two levels of monitoring and uses local indices for fault diagnosis.
CONTROL ENGINEERING PRACTICE
(2022)
Article
Mathematics, Applied
Yurii Kolomoitsev, Tetiana Lomako
Summary: This paper presents asymptotic formulas for the Lebesgue constants generated by three special approximation processes related to the l(1) -partial sums of Fourier series, including Lagrange interpolation polynomials based on Lissajous-Chebyshev node points, the partial sums of Fourier series generated by anisotropically dilated rhombus, and the corresponding discrete partial sums.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Engineering, Multidisciplinary
Peng Xu, Jianchang Liu, Liangliang Shang, Wenle Zhang
Summary: Traditional industrial process fault detection and diagnosis techniques are not satisfactory. This paper proposes a decentralized framework using multiple enhanced supervised kernel entropy component analysis models as fault indicators, which can easily diagnose both known and unknown faults.
Article
Mathematical & Computational Biology
Siyun Liu, Tao Yu
Summary: In this article, a method for density estimation of data with a mixture structure is proposed, which nonparametrically estimates component density functions through weighted kernel density estimation. Extensive simulation studies and real data examples demonstrate the superiority of the proposed method over existing methods in most cases.
STATISTICS IN MEDICINE
(2021)
Article
Engineering, Chemical
Miao Mou, Xiaoqiang Zhao
Summary: This paper proposes a method for detecting and diagnosing incipient nonlinear faults with missing data in industrial processes. The method uses low rank matrix decomposition to recover missing data and builds a mixed kernel function model in the recovered data to extract both local information and global characteristics. The dissimilarity statistic is introduced for fault detection. Numerical examples and simulation verification demonstrate the method's good detection and diagnosis capabilities.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Energy & Fuels
Jerzy Baranowski, Tomasz Drabek, Pawel Piatek, Andrzej Tutaj
Summary: This paper presents the measurement results of electromagnetic interference generated by a brushless DC motor in an electric torque tool, as well as the harmonic content in the current drawn by electrical devices from a single-phase AC line. The results indicate the need for an active power factor corrector filter to meet the requirements of relevant standards.
Article
Computer Science, Information Systems
Jerzy Baranowski, Waldemar Bauer, Rafal Mularczyk
Summary: This paper discusses the diffusive realization of the fractional integrator using quadratures, and demonstrates the implementation in the numerical package SoftFrac. The study shows the superiority of bounded domain integration with logarithmic transformation, while explaining issues with behavior at extremely low frequencies.
Article
Automation & Control Systems
Katarzyna Grobler-Debska, Edyta Kucharska, Jerzy Baranowski
Summary: The paper proposes a formal method for solving scheduling problems in manufacturing, aiming to improve production efficiency and product quality while achieving zero-defect manufacturing. The method focuses on predictive-reactive scheduling based on defect detection and repair, as well as analyzing disturbance data in the production process to aid decision-making for the management board.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Adrian Dudek, Jerzy Baranowski
Summary: Gaussian processes are flexible stochastic processes that can model complex functions and have broad applications in various fields of automation.
APPLIED SCIENCES-BASEL
(2022)
Article
Energy & Fuels
Daniel Dworak, Jerzy Baranowski
Summary: This study investigates the application of explainable artificial intelligence methods to LiDAR point cloud specific object detection in automotive perception systems, addressing data and network architecture compatibility issues, and validating the effectiveness of Grad-CAM methods on LiDAR sensor data.
Article
Engineering, Electrical & Electronic
Adrian Dudek, Jerzy Baranowski
Summary: Traditional methods and non-parametric methods (such as Gaussian process) can be applied to address the degradation issue of lithium-ion batteries. This study utilizes Gaussian process and employs maximum likelihood type II and Monte Carlo Markov Chain methods, based on existing knowledge of non-parametric approaches and electrochemical state modeling.
ARCHIVES OF ELECTRICAL ENGINEERING
(2023)
Proceedings Paper
Automation & Control Systems
Andrzej Nescior, Adrian Dudek, Waldemar Bauer, Jerzy Baranowski
Summary: This paper proposes using Bayesian inference to analyze short-range virus exposure, providing a solution to problems that traditional research cannot address.
2023 27TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS, MMAR
(2023)
Proceedings Paper
Automation & Control Systems
Adrian Dudek, Jerzy Baranowski
Summary: Gaussian processes have gained popularity as a way to solve statistics and machine learning problems. However, the computational burden can be impractical, especially with big data. To address this issue, we propose an alternative approximation method using Chebyshev polynomials. Our method calculates the GP model only at Chebyshev nodes and transforms function values into Chebyshev coefficients to solve the original problem.
2023 27TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS, MMAR
(2023)
Proceedings Paper
Automation & Control Systems
Jan Kapusta, Waldemar Bauer, Jerzy Baranowski
Summary: The importance of security in the modern world is widely recognized, leading organizations to invest in Physical Protection Systems (PPS) to safeguard their assets. Evaluating the effectiveness of PPS is crucial and should include cybersecurity considerations. This paper proposes a new approach that combines the well-known EASI methodology with additional methods to address potential cybersecurity threats to PPS.
2023 27TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS, MMAR
(2023)
Proceedings Paper
Automation & Control Systems
Nataliia Kashpruk, Jerzy Baranowski, Wojciech Bachta
Summary: This paper describes Vinci Medicine, a comprehensive healthcare system that utilizes machine learning and mobile technology. The system allows users to input symptoms and receive medical advice based on machine learning analysis. It also includes a module for preliminary diagnoses and suggestions, as well as a database for storing user data and medical information.
2023 27TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS, MMAR
(2023)
Proceedings Paper
Automation & Control Systems
Nataliia Kashpruk, Marta Kraszewska, Jerzy Baranowski, Mariusz Kapusta
Summary: This paper presents forecasting models using the Prophet algorithm for predicting the incidence rate of occupational diseases in Polish coal mining. The data is analyzed and the approach for building the forecasting models in Prophet is described. The models are revealed for all sectors in Poland, the mining industry, and specifically for coal mining and pneumoconiosis. The improved forecast accuracy of these models can provide coal mining enterprises with more precise data, supporting safety management.
2023 27TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS, MMAR
(2023)
Article
Energy & Fuels
Jakub Poreba, Jerzy Baranowski
Summary: Motor diagnostics is an important research topic, and acoustic signal analysis can be applied to motor diagnostics. In this study, functional data analysis is used to represent the spectrum of acoustic signals using B-spline basis and construct a classifier for motor diagnostics. The results show that binary classifiers perform well in classification, while multiclass classifiers are more sensitive to dataset size.
Proceedings Paper
Automation & Control Systems
Jerzy Baranowski, Waldemar Bauer, Katarzyna Grobler-Debska
Summary: The paper discusses the challenges of teaching during a pandemic, presents a successful case study of a numerical methods course, emphasizes the importance of motivating students to engage in laboratory work, and highlights the opportunities for utilizing available tools and innovative teaching methods in remote learning.
IECON 2021 - 47TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2021)
Proceedings Paper
Computer Science, Information Systems
Julia Nako, Stavroula Kapoulea, Costas Psychalinos, Jerzy Baranowski, Waldemar Bauer, Pawel Piatek, Andrzej Tutaj
Summary: This work presents a fractional-order controller topology to address the issue of the extremely large spread of passive elements values when the integration and/or differentiation order approaches unity. The approach involves decomposing the process into intermediate parts, containing integer and reduced-order fractional parts. The functional block diagram is implemented with Operational Amplifiers as active cells, and a controller design example demonstrates the concept through simulation results using OrCAD PSpice emulator and OP27 operational amplifier discrete IC component model.
2021 44TH INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND SIGNAL PROCESSING (TSP)
(2021)
Article
Engineering, Multidisciplinary
Sicheng Jiao, Shixiang Wang, Minge Gao, Min Xu
Summary: This paper presents a non-contact method of thickness measurement for thin-walled rotary shell parts based on a chromatic confocal sensor. The method involves using a flip method to obtain surface profiles from both sides of the workpiece, measuring the decentration and tilt errors of the workpiece using a centering system, establishing a unified reference coordinate system, reconstructing the external and internal surface profiles, and calculating the thickness. Experimental results show that the method can accurately measure the thickness of a sapphire spherical shell workpiece and is consistent with measurements of other materials.
Article
Engineering, Multidisciplinary
Rajeev Kumar, Sajal Agarwal, Sarika Pal, Alka Verma, Yogendra Kumar Prajapati
Summary: This study evaluated the performance of a CaF2-Ag-MXene-based surface plasmon resonance (SPR) sensor at different wavelengths. The results showed that the sensor achieved the maximum sensitivity at a wavelength of 532 nm, and higher sensitivities were obtained at shorter wavelengths at the expense of detection accuracy.
Article
Engineering, Multidisciplinary
Attilio Di Nisio, Gregorio Andria, Francesco Adamo, Daniel Lotano, Filippo Attivissimo
Summary: Capacitive sensing is a widely used technique for a variety of applications, including avionics. However, current industry standard Capacitive Level Sensors (CLSs) used in helicopters perform poorly in terms of sensitivity and dynamic characteristics. In this study, novel geometries were explored and three prototypes were built and tested. Experimental validation showed that the new design featuring a helicoidal slit along the external electrode of the cylindrical probe improved sensitivity, response time, and linearity.
Article
Engineering, Multidisciplinary
Kai Yang, Huiqin Wang, Ke Wang, Fengchen Chen
Summary: This paper proposes an effective measurement method for dynamic compaction construction based on time series model, which enables real-time monitoring and measurement of anomalies and important construction parameters through simulating motion state transformation and running time estimation.
Article
Engineering, Multidisciplinary
Hui Fu, Qinghua Song, Jixiang Gong, Liping Jiang, Zhanqiang Liu, Qiang Luan, Hongsheng Wang
Summary: An automatic detection and pixel-level quantification model based on joint Mask R-CNN and TransUNet is developed to accurately evaluate microcrack damage on the grinding surfaces of engineering ceramics. The model is effectively trained on actual micrograph image dataset using a joint training strategy. The proposed model achieves reliable automatic detection and fine segmentation of microcracks, and a skeleton-based quantification model is also proposed to provide comprehensive and precise measurements of microcrack size.
Review
Engineering, Multidisciplinary
Sang Yeob Kim, Da Yun Kwon, Arum Jang, Young K. Ju, Jong-Sub Lee, Seungkwan Hong
Summary: This paper reviews the categorization and applications of UAV sensors in forensic engineering, with a focus on geotechnical, structural, and water infrastructure fields. It discusses the advantages and disadvantages of sensors with different wavelengths and addresses the challenges of current UAV technology and recommendations for further research in forensic engineering.
Article
Engineering, Multidisciplinary
Anton Nunez-Seoane, Joaquin Martinez-Sanchez, Erik Rua, Pedro Arias
Summary: This article compares the use of Mobile Laser Scanners (MLS) and Aerial Laser Scanners (ALS) for digitizing the road environment and detecting road slopes. The study found that ALS data and its corresponding algorithm achieved better detection and delimitation results compared to MLS. Measuring the road from a terrestrial perspective negatively impacted the detection process, while an aerial perspective allowed for scanning of the entire slope structure.
Article
Engineering, Multidisciplinary
Nur Luqman Saleh, Aduwati Sali, Raja Syamsul Azmir Raja Abdullah, Sharifah M. Syed Ahmad, Jiun Terng Liew, Fazirulhisyam Hashim, Fairuz Abdullah, Nur Emileen Abdul Rashid
Summary: This study introduces an enhanced signal processing scheme for detecting mouth-click signals used by blind individuals. By utilizing additional band-pass filtering and other steps, the detection accuracy is improved. Experimental results using artificial signal data showed a 100% success rate in detecting obstacles. The emerging concepts in this research are expected to benefit radar and sonar system applications.
Article
Engineering, Multidisciplinary
Jiqiang Tang, Shengjie Qiu, Lu Zhang, Jinji Sun, Xinxiu Zhou
Summary: This paper studies the magnetic noise level of a compact high-performance magnetically shielded room (MSR) under different operational conditions and establishes a quantitative model for magnetic noise calculation. Verification experiments show the effectiveness of the proposed method.
Review
Engineering, Multidisciplinary
Krzysztof Bartnik, Marcin Koba, Mateusz Smietana
Summary: The demand for miniaturized sensors in the biomedical industry is increasing, and optical fiber sensors (OFSs) are gaining popularity due to their small size, flexibility, and biocompatibility. This study reviews various OFS designs tested in vivo and identifies future perspectives and challenges for OFS technology development from a user perspective.
Article
Engineering, Multidisciplinary
Yue Wang, Lei Zhou, Zihao Li, Jun Wang, Xuangou Wu, Xiangjun Wang, Lei Hu
Summary: This paper presents a 3-D reconstruction method for dynamic stereo vision of metal surface based on line structured light, overcoming the limitation of the measurement range of static stereo vision. The proposed method uses joint calibration and global optimization to accurately reconstruct the 3-D coordinates of the line structured light fringe, improving the reconstruction accuracy.
Article
Engineering, Multidisciplinary
Jaafar Alsalaet
Summary: Order tracking analysis is an effective tool for machinery fault diagnosis and operational modal analysis. This study presents a new formulation for the data equation of the second-generation Vold-Kalman filter, using separated cosine and sine kernels to minimize error and provide smoother envelopes. The proposed method achieves high accuracy even with small weighting factors.
Article
Engineering, Multidisciplinary
Tonglei Cao, Kechen Song, Likun Xu, Hu Feng, Yunhui Yan, Jingbo Guo
Summary: This study constructs a high-resolution dataset for surface defects in ceramic tiles and addresses the scale and quantity differences in defect distribution. An improved approach is proposed by introducing a content-aware feature recombination method and a dynamic attention mechanism. Experimental results demonstrate the superior accuracy and efficiency of the proposed method.
Article
Engineering, Multidisciplinary
Qinghong Fu, Yunxi Lou, Jianghui Deng, Xin Qiu, Xianhua Chen
Summary: Measurement and quantitative characterization of aging-induced gradient properties is crucial for accurate analysis and design of asphalt pavement. This research proposes the composite specimen method to obtain asphalt binders at different depths within the mixture and uses dynamic shear rheometer tests to measure aging-induced gradient properties and reveal internal mechanisms. G* master curves are constructed to investigate gradient aging effects in a wide range. The study finds that the composite specimen method can effectively restore the boundary conditions and that it is feasible to study gradient aging characteristics within the asphalt mixture. The study also observes variations in G* and delta values and the depth range of gradient aging effects for different aging levels.
Article
Engineering, Multidisciplinary
Min Li, Kai Wei, Tianhe Xu, Yali Shi, Dixing Wang
Summary: Due to the limitations of ground monitoring stations in China for the BDS, the accuracy of BDS Medium Earth Orbit (MEO) satellite orbits can be influenced. To overcome this, low Earth orbit (LEO) satellites can be used as additional monitoring stations. In this study, data from two LEO satellites were collected to improve the precise orbit determination of the BDS. By comparing the results with GPS and BDS-2/3 solutions, it was found that including the LEO satellites significantly improved the accuracy of GPS and BDS-2/3 orbits.