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• W3186593818 abstract "Magnetic Resonance Imaging (MRI) is a significant technique used to diagnose brain abnormalities at early stages. This paper proposes a novel method to classify brain abnormalities (tumor and stroke) in MRI images using a hybridized machine learning algorithm. The proposed methodology includes feature extraction (texture, intensity, and shape), feature selection, and classification. The texture features are extracted by intending a neoteric directional-based quantized extrema pattern. The intensity features are extracted by proposing the clustering-based wavelet transform. The shape-based extraction is performed using conventional shape descriptors. Maximum A Priori (MAP) based firefly algorithm is proposed for feature selection. Finally, hybridized support vector-based random forest classifier is used for the classification. The MRI brain tumor and stroke images are detected and categorized into four classes which are a high-grade tumor, a low-grade tumor, an acute stroke, and a sub-acute stroke. Besides, three different regions are identified in tumor detection such as edema, and tumor (necrotic and non-enhancing) region. The accuracy of the proposed method is analyzed using various performance metrics in comparison with the few state-of-the-art classification methods. The proposed methodology successfully achieves a reliable accuracy of 88.3% for classifying brain tumor cases and 99.2% for brain stroke classification. The best F-score of 0.91 and the least FPR of 0.06 are attained while considering brain tumor classification against the proposed HSVFC. Likewise, HSVFC has 0.99 as the best F-score and a 0.0 FPR in the case of brain stroke classification. The experimental analysis offers a maximum mean accuracy of different classifiers for categorizing MRI brain tumor are 76.55%, 49.24%, 65.12%, 74.36%, 69.25%,and 55.61% for HSVFC, SVM, FFNN, DC, ResNet-18 and KNN respectively. Similarly, in identifying MRI brain stroke, the average accuracy for HSVFC, SVM, FFNN, DC, ResNet-18 and KNN are 98.17%, 53.40%, 85.8%, 87.5%, 70.06%, and 61.24%, respectively is achieved." @default.
• W3186593818 created "2021-08-02" @default.
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• W3186593818 date "2022-01-01" @default.
• W3186593818 modified "2023-10-17" @default.
• W3186593818 title "Pattern Descriptors Orientation and MAP Firefly Algorithm Based Brain Pathology Classification Using Hybridized Machine Learning Algorithm" @default.
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• W3186593818 doi "https://doi.org/10.1109/access.2021.3100549" @default.
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