The imaging modalities are used to view other organs and analyze different tissues in the body. In such imaging modalities, a new and developing imaging technique is hyperspectral imaging. This multicolour representation of tissues helps us to better understand the issues compared to the previous image models. This research aims to analyze the tumor localization in the brain by performing different operations on hyperspectral images. The tumor is located using the combination of -based clustering processes like -nearest neighbour and -means clustering. The value of in both methods is determined using the optimization process called the firefly algorithm. The optimization processes reduce the manual calculation for finding 's optimal value to segment the brain regions. The labelling of the areas of the brain is done using the multilayer feedforward neural network. The proposed technique produced better results than the existing methods like hybrid -means clustering and parallel -means clustering by having a higher peak signal-to-noise ratio and a lesser mean absolute error value. The proposed model achieved 96.47% accuracy, 96.32% sensitivity, and 98.24% specificity, which are improved compared to other techniques.
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http://dx.doi.org/10.1155/2022/2761847 | DOI Listing |
Sci Rep
December 2024
School of Big Data, Fuzhou University of International Studies and Trade, Fuzhou, 350202, China.
The traditional machine learning methods such as decision tree (DT), random forest (RF), and support vector machine (SVM) have low classification performance. This paper proposes an algorithm for the dry bean dataset and obesity levels dataset that can balance the minority class and the majority class and has a clustering function to improve the traditional machine learning classification accuracy and various performance indicators such as precision, recall, f1-score, and area under curve (AUC) for imbalanced data. The key idea is to use the advantages of borderline-synthetic minority oversampling technique (BLSMOTE) to generate new samples using samples on the boundary of minority class samples to reduce the impact of noise on model building, and the advantages of K-means clustering to divide data into different groups according to similarities or common features.
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December 2024
Department of Computer Engineering, Sharif University of Technology, Azadi Avenue, Tehran, Iran.
Numerous algorithms have been proposed to infer the underlying structure of the social networks via observed information propagation. The previously proposed algorithms concentrate on inferring accurate links and neglect preserving the essential topological properties of the underlying social networks. In this paper, we propose a novel method called DANI to infer the underlying network while preserving its structural properties.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Computer Science , Applied College, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Over the past two decades, cloud computing has experienced exponential growth, becoming a critical resource for organizations and individuals alike. However, this rapid adoption has introduced significant security challenges, particularly in intrusion detection, where traditional systems often struggle with low detection accuracy and high processing times. To address these limitations, this research proposes an optimized Intrusion Detection System (IDS) that leverages Graph Neural Networks and the Leader K-means clustering algorithm.
View Article and Find Full Text PDFJ Adv Nurs
December 2024
Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
Aims: To elucidate the meaning of recovery for mothers who have experienced difficulties in child-rearing, using insights gained through their activities as mother-to-mother peer supporters.
Design: Phenomenological study.
Methods: From January to October 2022, semi-structured interviews were conducted with 11 mothers active as peer supporters at community child-rearing support centres in Japan.
Nephrol Dial Transplant
December 2024
Department of Nephrology, The First Affiliated Hospital of Sun Yat-Sen University, People's Republic of China.
Background And Hypothesis: Membranous lupus nephritis (MLN) traditionally includes class V (alone) and may be associated with other classes (III or IV). The clinical, therapeutic and prognosis relevance of the classification remains controversial.
Methods: A retrospective cohort of 412 MLN patients from the First Affiliated Hospital of Sun-Yat Sen University was followed for a median of 65.
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