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Alzheimer’s disease is a progressive neurodegenerative disorder that leads to cognitive decline and memory impairment. Early detection of Alzheimer’s disease is crucial for enabling timely clinical intervention and improving patient outcomes. Conventional diagnostic methods rely heavily on manual analysis of brain magnetic resonance imaging scans, which can be time-consuming and prone to subjective interpretation errors. This study presents a deep learning-based framework for automated classification of Alzheimer’s disease stages using brain magnetic resonance imaging images. The proposed approach utilizes an efficient MobileViT-based architecture that combines convolutional operations with lightweight transformer modules to capture both local spatial features and global contextual information. Convolutional layers extract fine-grained visual patterns, while transformer components model long-range dependencies across the image. Data augmentation techniques such as random rotation and horizontal flipping are applied to enhance model generalization. The model is trained using transfer learning with selective layer unfreezing and progressive fine-tuning, and optimized using the AdamW optimizer with a cosine annealing learning rate scheduler. Experimental results demonstrate that the proposed model effectively learns discriminative representations from brain magnetic resonance imaging scans and achieves strong classification performance across Alzheimer’s disease categories. The framework highlights the potential of MobileViT-based architectures for medical image analysis and supports early diagnosis of neurodegenerative diseases.
Keywords:
Alzheimer disease, deep learning, convolutional neural networks, transformers, medical image classification, brain MRI, MobileViT
Cite Article:
"A Lightweight Advanced Hybrid Transformer Model for Early Detection of Alzheimer’s Disease Using Neurological Medical Images", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2456-3315, Vol.11, Issue 4, page no.b985-b989, April-2026, Available :http://www.ijrti.org/papers/IJRTI2604272.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator