-
2941
Low-Field Magnetic Resonance Imaging: A Full-Wave Simulation of Radiofrequency Birdcage Coils for Musculoskeletal Limb Imaging
Published 2025-03-01“…<b>Methods:</b> This paper describes the application of a numerical full-wave method based on the finite-difference time-domain (FDTD) algorithm for the simulation and the design of birdcage coils for musculoskeletal low-field MRI. …”
Get full text
Article -
2942
Machine learning based shear strength prediction in reinforced concrete beams using Levy flight enhanced decision trees
Published 2025-07-01“…A comprehensive dataset comprising 195 experimentally tested T-beams is used to train and evaluate six different regression models, including optimized Decision Tree, Random Forest, AdaBoost, K-Nearest Neighbors, Ridge Regression, and the proposed Levy-DT. …”
Get full text
Article -
2943
Using machine learning to study the population life quality: methodological aspects
Published 2022-03-01“…Various approaches to text vectorisation, publicly available neural network models pre-trained on large Russian-language text corpora, as well as metrics for evaluating the algorithms results were analysed. Computational experiments with different algorithms were carried out, according to the results of which the Rubert-tiny algorithm was selected due to its high learning and classification rate. …”
Get full text
Article -
2944
Memory Efficient Local Features Descriptor for Identity Document Detection on Mobile and Embedded Devices
Published 2023-01-01“…In this paper, we propose a data-driven approach to training a memory-efficient local feature descriptor for identity documents location and classification on mobile and embedded devices. The proposed algorithm for retrieving a dataset of patches is based on the specifics of document detection in smartphone camera-captured images with a template matching approach. …”
Get full text
Article -
2945
Linear B-cell epitope prediction for SARS and COVID-19 vaccine design: Integrating balanced ensemble learning models and resampling strategies
Published 2025-06-01“…Hyperparameter optimization for the classifiers was conducted using GridSearchCV, while feature selection was performed with the recursive feature elimination (RFE) algorithm. Model performance was evaluated using seven different metrics: Accuracy, Precision, Recall, F1-score, receiver operating characteristic area under the curve (ROC AUC), precision recall area under the curve (PR AUC), and Matthews correlation coefficient (MCC). …”
Get full text
Article -
2946
THE STUDY OF THE BRAIN IN A PATIENT WITH TYPE 1 DIABETES MELLITUS USING TECHNIQUES OF MAGNETIC RESONANCE IMAGING
Published 2015-10-01“…The study of the brain, namely structural and metabolic manifestations of diabetes, is one of the priority problem of modern medical science.The aim of the study was to evaluate dynamics in the different techniques of magnetic resonance imaging in the diagnosis of brain changes in patients with T1DM.Research methods included physical examination, in accordance with the diagnostic algorithm of patients with T1DM, a neurologist consultation, an assessment of cognitive function, analysis of brain changes using standard magnetic resonance imaging and spectroscopy. …”
Get full text
Article -
2947
On assessing the efficiency of executive authorities in achieving the national development goals
Published 2020-12-01“…Based on the analysis of the dynamics and structure of the number of state and municipal employees and their remuneration in the Russian Federation, Southern Federal district and Volgograd region, the differences in the work of state and municipal employees at different levels are reasoned and proposals are developed for the use of a system of key performance indicators (KPI) linked to the goals and objectives of national projects at all levels of executive power. …”
Get full text
Article -
2948
Predicting the Spatial Distribution of Geological Hazards in Southern Sichuan, China, Using Machine Learning and ArcGIS
Published 2025-03-01“…Several machine learning models were evaluated, including random forest, XGBoost, and CatBoost, with model optimization performed using the Sparrow Search Algorithm (SSA) to enhance prediction accuracy. …”
Get full text
Article -
2949
Multimodal Approach (MRI and Ultrasonography) to the Diagnosis of Fetal Congenital Heart Diseases
Published 2024-11-01“…In 85.7% of the fetuses, the findings of different imaging techniques fully coincided with the autopsy findings.Conclusions: In this cohort of pregnant women, the second screening should include more examinations to verify the diagnosis of CHD. …”
Get full text
Article -
2950
Artificial Intelligence-Based Surface Roughness Estimation Modelling for Milling of AA6061 Alloy
Published 2021-01-01“…In the forming of the network construction, five different learning algorithms were used: the conjugate gradient backpropagation, Levenberg–Marquardt, scaled conjugate gradient, quasi-Newton backpropagation, and resilient backpropagation. …”
Get full text
Article -
2951
Impact of rhinosinusal polyposis on CT score in patients with chronic rhinosinustis
Published 2010-01-01“…Recent studies show the possibility of existing different subtipes of chronic rhinosinusitis, pointing out the presence of nasal polyps and their influence on the severity of chronic rhinosinusitis. …”
Get full text
Article -
2952
Fall prediction in a quiet standing balance test via machine learning: Is it possible?
Published 2024-01-01“…Six different machine learning algorithms were tested for this classification, which included Logistic Regression, Linear Discriminant Analysis, K Nearest-neighbours, Decision Tree Classifier, Gaussian Naive Bayes and C-Support Vector Classification. …”
Get full text
Article -
2953
Image Biomarker Analysis of Ultrasonography Images of the Parotid Gland for Baseline Characteristic Establishment with Reduced Shape Effects
Published 2024-11-01“…Regions of interest were drawn twice on 50 images using different shapes to assess the intraclass correlation coefficient (ICC). …”
Get full text
Article -
2954
Lightweight Football Motion Recognition and Intensity Analysis Using Low-Cost Wearable Sensors
Published 2023-01-01“…A feature extraction scheme is designed in the initial data processing, and feature data augmentation is performed to solve the small sample data problem. To evaluate the performance of the designed football motion recognition algorithm, this paper proposes a data extraction experimental scheme to complete the data collection of different motions. …”
Get full text
Article -
2955
Improving Scheduling Efficiency: A Mathematical Approach to Multi-Operation Optimization in MSMEs
Published 2025-04-01“…A multi-criteria optimization method with weighted aggregation was used, employing either an exhaustive search or a heuristic algorithm with nested loops, in which multiple possible combinations of operational sequences were evaluated, considering several key indicators and their respective weights. …”
Get full text
Article -
2956
Measuring the Company’s Capabilities and Assessing their Impact on Its Economic Results: Analytic Tools
Published 2024-08-01“…To solve analytical tasks at different levels of management, combinations of methods, tools and indicators called “research formats” (detailed, diagnostic, express diagnostic analysis) were developed. …”
Get full text
Article -
2957
Multi-Objective Optimization of Natural Lighting Design in Reading Areas of Higher Education Libraries
Published 2025-05-01“…A parametric building information model (BIM) was developed in Revit, and lighting simulations were conducted in DIALux Evo to evaluate different design alternatives. Experimental validation was carried out in an actual library setting, with illuminance data collected from five representative measurement points. …”
Get full text
Article -
2958
Recommending Tolerance Value for SpO2 Devices with Linear Regression Based on Measuring Tape
Published 2025-02-01“…Using a linear regression algorithm, SpO2 values from different bands were classified for quality. …”
Get full text
Article -
2959
The 2017 Land Use/Land Cover Map of Catalonia based on Sentinel-2 images and auxiliary data
Published 2020-06-01“…These images as well as texture variables, terrain models derived from lidar processing, and vegetation and wetness indices were classified using the k-Nearest Neighbor algorithm (kNN) to obtain a map with 25 categories. …”
Get full text
Article -
2960
Tradeoff between compression ratio and decoding delay of distributed source coding for uplink transmissions in machine-type communication
Published 2018-07-01“…A machine-type communications uplink transmission scheme adopting clustered distributed source coding is proposed to balance the compression ratio and decoding delay of distributed source coding where users are divided into independently encoded and decoded clusters. We evaluate three clustering algorithms, grid dividing, Weighted Pair Group Method with Arithmetic Mean, and K-medoids in our system model. …”
Get full text
Article