Classification of Alzheimer's disease with EfficientNet B3

Öz

Alzheimer's disease (AD) is a condition that manifests as a loss of consciousness and cognitive dysfunction, eventually leaving the individual incapable of performing basic functions. The process culminates in death. The brain anomalies caused by the disease can be monitored using magnetic resonance imaging (MRI). This study aims to facilitate the clinical diagnosis of AD and proposes a hybrid model to classify the stages of the disease. The magnetic resonance images used in the study were obtained from the Kaggle database and include the classes non-demented, very mild dementia, mild dementia, and moderate dementia. Background removal was applied to the images, which were then segmented using the k-means clustering method. By combining EfficientNet B3 and the Gray Level Co-Occurrence Matrix (GLCM) feature extractor, this hybrid model was trained to perform the classification task. The model was trained five times, and experimental results were recorded. In training, the batch size was set to 18, the number of epochs was 20, and the learning rate was set to 0.0001. Experimental results showed an average training accuracy of 99.99% and a testing accuracy of 99.67%. Additional performance metrics, such as precision, recall, and F1-score, are also reported.

Anahtar Kelimeler

• Alzheimer
• Machine learning
• EffcientNet B3
• Gray Level Co-Occurence Matrix
• Image segmentation

Classification of Alzheimer's disease with EfficientNet B3

Öz

Alzheimer hastalığı (AH), bilinç kaybı ve bilişsel işlev bozukluğu olarak ortaya çıkan ve sonunda bireyi temel işlevleri yerine getiremez hale getiren bir durumdur. Süreç ölümle sonuçlanır. Hastalığın neden olduğu beyin anomalileri manyetik rezonans görüntüleme (MRI) kullanılarak izlenebilir. Bu çalışma, AD'nin klinik teşhisini kolaylaştırmayı amaçlamakta ve hastalığın evrelerini sınıflandırmak için hibrit bir model önermektedir. Çalışmada kullanılan manyetik rezonans görüntüleri Kaggle veri tabanından elde edilmiştir ve bunama olmayan, çok hafif bunama, hafif bunama ve orta derecede bunama sınıflarını içermektedir. Görüntülere arka plan kaldırma işlemi uygulanmış ve ardından k-ortalamalar kümeleme yöntemi kullanılarak segmentlere ayrılmıştır. EfficientNet B3 ve Gri Seviye Eş Oluşum Matrisi (GLCM) özellik çıkarıcısını birleştiren bu hibrit model, sınıflandırma görevini yerine getirmek üzere eğitilmiştir. Model beş kez eğitilmiş ve deneysel sonuçlar kaydedilmiştir. Eğitimde, yığın boyutu 18, epok sayısı 20 ve öğrenme oranı 0.0001 olarak ayarlanmıştır. Deneysel sonuçlar ortalama %99,99 eğitim doğruluğu ve %99,67 test doğruluğu göstermiştir. Kesinlik, geri çağırma ve F1-skoru gibi ek performans ölçümleri de raporlanmıştır.

Anahtar Kelimeler

• Alzheimer
• Machine learning
• Gray Level Co-Occurence Matrix
• Image segmentation

Kaynakça

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