Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2401.06697 · IEEE High Performance Extreme Computing Conference

Quantum Machine Learning in the Cognitive Domain: Alzheimer's Disease Study

Emine Akpinar

Published Sep 23, 2024• 6 citations
arXivHTMLPDF

Abstract

Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, primarily affecting the elderly population and leading to significant cognitive decline. This decline manifests in various mental faculties such as attention, memory, and higher-order cognitive functions, severely impacting an individual's ability to comprehend information, acquire new knowledge, and communicate effectively. One of the tasks influenced by cognitive impairments is handwriting. By analyzing specific features of handwriting, including pressure, velocity, and spatial organization, researchers can detect subtle changes that may indicate early-stage cognitive impairments, particularly AD. Recent developments in classical artificial intelligence (AI) methods have shown promise in detecting AD through handwriting analysis. However, as the dataset size increases, these AI approaches demand greater computational resources, and diagnoses are often affected by limited classical vector spaces and feature correlations. Recent studies have shown that quantum computing technologies, developed by harnessing the unique properties of quantum particles such as superposition and entanglement, can not only address the aforementioned problems but also accelerate complex data analysis and enable more efficient processing of large datasets. In this study, we propose a variational quantum classifier with fewer circuit elements to facilitate early AD diagnosis based on handwriting data. Our model has demonstrated comparable classification performance to classical methods and underscores the potential of quantum computing models in addressing cognitive problems, paving the way for future research in this domain.

DOI
10.1109/hpec62836.2024.10938482

Related papers

Quantum AI for Alzheimer’s disease early screening

Giacomo Cappiello, Filippo Caruso

Quantum machine learning is a new research field combining quantum information science and machine learning. Quantum computing technologies appear to be particularly well-suited for addressing problems in the health sector efficiently. They have the potential to handle large datasets more effectively than classical models and offer greater transparency and interpretability for clinicians. Alzheimer’s disease is a neurodegenerative brain disorder that mostly affects elderly people, causing important cognitive impairments. It is the most common cause of dementia and it has an effect on memory, thought, learning abilities and movement control. This type of disease has no cure, consequently an early diagnosis is fundamental for reducing its impact. The analysis of handwriting can be effective for diagnosing, as many researches have conjectured. The DARWIN (Diagnosis AlzheimeR WIth haNdwriting) dataset contains handwriting samples from people affected by Alzheimer’s disease and a group of healthy people. Here we apply quantum AI to this use-case. In particular, we use this dataset to test classical methods for classification and compare their performances with the ones obtained via quantum machine learning methods. We find that quantum methods generally perform better than classical methods. Our results pave the way for future new quantum machine learning applications in early-screening diagnostics in the healthcare domain.

arXiv:2405.00755•Neurocomputing•Jun 6, 2025•10 citations

Quantum Enhanced Machine Learning Model for the Diagnosis of Alzheimer’s Disease

Nancy Noella R S, Bhuvan Unhelkar, Siva Shankar Subramanian +1 more

Alzheimer’s is a progressive and degenerative brain disorder causing impairment in memory and cognitive function. It is the most common form of Dementia and the prevalence of Alzheimer’s disease (AD) increases with each decade of life. This usually starts in late middle age to old age resulting in progressive memory loss, impaired thinking, disorientation and changes in personality. Neurons are first lost in the hippocampus (the brain’s centre for memory and learning), and presence of neurofibrillary tangles and plaques containing beta-amyloid cells. Owing to the progressive nature of the disease and the complex structure of the brain, the exact causes, mechanisms and how Alzheimer’s spread is not completely understood thereby inhibiting in the production of a cure for the disease. Quantum Machine Learning (QML) is a promising area of research for the detection and diagnosis of Alzheimer’s disease. PET scan helps in diagnosing Alzheimer’s by detecting the amyloid plaques and tau tangles. It reveals areas with reduced metabolism, which helps differentiate Alzheimer’s from other conditions. Quantum computing provides a more efficient model for different disease classification tasks than classical machine learning approaches. In this study, we propose a model based on quantum machine learning classifiers to classify Alzheimer’s disease. This showcases the feasibility of Quantum enhanced classification and detection of AD for extremely limited medical datasets.

International Insurance Law Review•Jan 1, 2026•0 citations

Performance Evaluation of Quantum CNN and Classical CNN for Alzheimer's Diagnosis

Fazil A. Sheikh, Dr. S.Y. Amdani

Alzheimer’s Disease (AD) first strikes learning regions of the brain and is one of the most prevalent forms of dementia. Early diagnosis is crucial for optimum management of treatment, as the disorder is both irreversible and progressive. The current research outlines an end-to-end approach toward early diagnosis of AD by utilizing the hippocampus and transfer learning. The results of a conventional machine learning model—Convolutional Neural Network (CNN)—are compared to those of a Quantum Convolutional Neural Network (QCNN), an adaptation of the conventional CNN through the use of quantum computing methods like quantum kernel estimation. QCNN achieves greater efficiency in processing high-dimensional data than traditional CNNs. The main symptoms of Alzheimer’s are memory loss and cognitive impairment, caused by the degeneration and death of those neurons related to memory. Mild Cognitive Impairment (MCI) lies between cognition within the range of normality and Alzheimer’s. The early diagnosis of MCI has the potential to decelerate or even prevent the development of Alzheimer’s. In this paper, we have established that the QCNN model reached precision at 0.88 and recall at 0.96, compared to the classic CNN, where precision at 0.80, and recall at 0.84 have been achieved. The results highlight the prospective ability of Quantum Machine Learning (QML) to diagnose Alzheimer’s Disease at an early stage.

Journal of Neonatal Surgery•May 7, 2025•0 citations

Performance Evaluation of Quantum Machine Learning and Classical Machine Learning Techniques for Alzheimer's Disease Diagnosis

Fazil A. Sheikh

Alzheimer's Disease (AD) first affects the brain parts that are associated with learning. It is one of the most prevalent forms of Dementia. Its early diagnosis is crucial for properly managing the disease treatment because it is chronic and irreversible. This paper introduces a holistic approach to achieve early detection of AD using the hippocampus and transfer learning. Here we have compared the results from the classical machine learning model – Support Vector Machine (SVM) and the Quantum Support Vector Machine (QSVM) model. QSVM - a quantum variant of standard SVM algorithm. It is developed using techniques such as quantum kernel estimation in quantum computing for more efficient processing of high-dimensional data than standard SVMs.. The most common symptoms of Alzheimer’s are loss of memory and cognitive impairment. This stems from the destruction and death of nerve cells in the brain related to memory. Mild Cognitive Impairment (MCI) is a condition between normal brain function and Alzheimer’s. From the prodromal MCI stage, it progresses gradually to dementia. Several studies show that Alzheimer’s develops at a rate of 10–15% per year from MCI. The early identification of patients with MCI may halt/delay the progression from MCI stage to Alzheimer’s. The results with the precision of 0.85 with the QSVM compared to the precision of 0.78 and recall of 1.00 compared to the 0.89 with the traditional SVM shows that our technique of Quantum Machine Learning (QML) is very useful in Alzheimer’s early diagnosis.

International Journal of Intelligent Systems and Applications in Engineering•Apr 7, 2025•0 citations

Advances in Quantum-Assisted AI for Alzheimer's disease: Methods, Metrics and Models

Dr.Sankhya Nagesh Nayak, Vanam Rashmi

Alzheimer's disease (AD), a progressive neurodegenerative disorder, presents significant challenges in early diagnosis and treatment. Advancements in Artificial Intelligence (AI), Machine Learning (ML), and Deep Learning (DL), when combined with the power of computation of Quantum Computing (QC), offer promising avenues for the prediction and diagnosis of AD. This literature review surveys twenty research studies exploring the combination of QC with AI/ML/DL for AD prediction and compared through algorithms, evaluation metrics, time for training, datasets separately for ML and DL models. Challenges in current implementations and directions for research work are identified in review summary. The novelty of this review lies in its systematic comparison of quantum-assisted AI models across both machine learning and deep learning paradigms for Alzheimer’s detection, highlighting recent (2020–2024) research progress, performance benchmarks, and open challenges.

International Journal of Innovative Research in Advanced Engineering•Oct 30, 2025•0 citations

Enhanced Variational Quantum Networks for EarlyAlzheimer’s Detection: a Quantum-Classical Approach

S Samsudeen, M. Salomi Samsudeen, K.E. Purushothaman +2 more

The population aged 60 years is rapid increased to 20% of the total Indian population according to the statistics. Alzheimer is a disease which is a neurogenerative disorder. It is considered as the major cause of dementia. India is in critical scenario that faces increase in the elder population suffering from dementia. Hence, there arise a need for early diagnosis of Alzheimer disease (AD) in order to improve the patient’s mental health condition. Though, the existing diagnostic methods are accurate and fast computing, there arise a need to propose a model that aids in improved accuracy and reducing the computational time for early prediction of AD.The proposed model uses Enhanced variational Quantum Network(VAQ) that aids in improving the potential of AD in terms of accuracy and time complexity is designed to decide the feature extraction by processing the huge voluminous images and then fed the outcome into the classifier model. Alzheimer disease neuroimaging stage I and stage II are the datasets considered for applying VAQ for AD prediction. Both stage I and stage II dataset were combined together in order to process the resource efficiently for the diagnosis performs feature extraction and then the results been fed as input to the Quantum classifier. The classifier processes the data and classify the images as no dement, mild dement, average dement, very mild dement. The results are compared with already existing Convolutional Neural Network model (CNN) and Ensemble Classifier.

•Jun 5, 2025•0 citations
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, primarily affecting the elderly population and leading to significant cognitive decline. This decline manifests in various mental faculties such as attention, memory, and higher-order cognitive functions, severely impacting an individual's ability to comprehend information, acquire new knowledge, and communicate effectively. One of the tasks influenced by cognitive impairments is handwriting. By analyzing specific features of handwriting, including pressure, velocity, and spatial organization, researchers can detect subtle changes that may indicate early-stage cognitive impairments, particularly AD. Recent developments in classical artificial intelligence (AI) methods have shown promise in detecting AD through handwriting analysis. However, as the dataset size increases, these AI approaches demand greater computational resources, and diagnoses are often affected by limited classical vector spaces and feature correlations. Recent studies have shown that quantum computing technologies, developed by harnessing the unique properties of quantum particles such as superposition and entanglement, can not only address the aforementioned problems but also accelerate complex data analysis and enable more efficient processing of large datasets. In this study, we propose a variational quantum classifier with fewer circuit elements to facilitate early AD diagnosis based on handwriting data. Our model has demonstrated comparable classification performance to classical methods and underscores the potential of quantum computing models in addressing cognitive problems, paving the way for future research in this domain.
Quantum machine learning is a new research field combining quantum information science and machine learning. Quantum computing technologies appear to be particularly well-suited for addressing problems in the health sector efficiently. They have the potential to handle large datasets more effectively than classical models and offer greater transparency and interpretability for clinicians. Alzheimer’s disease is a neurodegenerative brain disorder that mostly affects elderly people, causing important cognitive impairments. It is the most common cause of dementia and it has an effect on memory, thought, learning abilities and movement control. This type of disease has no cure, consequently an early diagnosis is fundamental for reducing its impact. The analysis of handwriting can be effective for diagnosing, as many researches have conjectured. The DARWIN (Diagnosis AlzheimeR WIth haNdwriting) dataset contains handwriting samples from people affected by Alzheimer’s disease and a group of healthy people. Here we apply quantum AI to this use-case. In particular, we use this dataset to test classical methods for classification and compare their performances with the ones obtained via quantum machine learning methods. We find that quantum methods generally perform better than classical methods. Our results pave the way for future new quantum machine learning applications in early-screening diagnostics in the healthcare domain.
Alzheimer’s is a progressive and degenerative brain disorder causing impairment in memory and cognitive function. It is the most common form of Dementia and the prevalence of Alzheimer’s disease (AD) increases with each decade of life. This usually starts in late middle age to old age resulting in progressive memory loss, impaired thinking, disorientation and changes in personality. Neurons are first lost in the hippocampus (the brain’s centre for memory and learning), and presence of neurofibrillary tangles and plaques containing beta-amyloid cells. Owing to the progressive nature of the disease and the complex structure of the brain, the exact causes, mechanisms and how Alzheimer’s spread is not completely understood thereby inhibiting in the production of a cure for the disease. Quantum Machine Learning (QML) is a promising area of research for the detection and diagnosis of Alzheimer’s disease. PET scan helps in diagnosing Alzheimer’s by detecting the amyloid plaques and tau tangles. It reveals areas with reduced metabolism, which helps differentiate Alzheimer’s from other conditions. Quantum computing provides a more efficient model for different disease classification tasks than classical machine learning approaches. In this study, we propose a model based on quantum machine learning classifiers to classify Alzheimer’s disease. This showcases the feasibility of Quantum enhanced classification and detection of AD for extremely limited medical datasets.
Alzheimer’s Disease (AD) first strikes learning regions of the brain and is one of the most prevalent forms of dementia. Early diagnosis is crucial for optimum management of treatment, as the disorder is both irreversible and progressive. The current research outlines an end-to-end approach toward early diagnosis of AD by utilizing the hippocampus and transfer learning. The results of a conventional machine learning model—Convolutional Neural Network (CNN)—are compared to those of a Quantum Convolutional Neural Network (QCNN), an adaptation of the conventional CNN through the use of quantum computing methods like quantum kernel estimation. QCNN achieves greater efficiency in processing high-dimensional data than traditional CNNs. The main symptoms of Alzheimer’s are memory loss and cognitive impairment, caused by the degeneration and death of those neurons related to memory. Mild Cognitive Impairment (MCI) lies between cognition within the range of normality and Alzheimer’s. The early diagnosis of MCI has the potential to decelerate or even prevent the development of Alzheimer’s. In this paper, we have established that the QCNN model reached precision at 0.88 and recall at 0.96, compared to the classic CNN, where precision at 0.80, and recall at 0.84 have been achieved. The results highlight the prospective ability of Quantum Machine Learning (QML) to diagnose Alzheimer’s Disease at an early stage.
Alzheimer's Disease (AD) first affects the brain parts that are associated with learning. It is one of the most prevalent forms of Dementia. Its early diagnosis is crucial for properly managing the disease treatment because it is chronic and irreversible. This paper introduces a holistic approach to achieve early detection of AD using the hippocampus and transfer learning. Here we have compared the results from the classical machine learning model – Support Vector Machine (SVM) and the Quantum Support Vector Machine (QSVM) model. QSVM - a quantum variant of standard SVM algorithm. It is developed using techniques such as quantum kernel estimation in quantum computing for more efficient processing of high-dimensional data than standard SVMs.. The most common symptoms of Alzheimer’s are loss of memory and cognitive impairment. This stems from the destruction and death of nerve cells in the brain related to memory. Mild Cognitive Impairment (MCI) is a condition between normal brain function and Alzheimer’s. From the prodromal MCI stage, it progresses gradually to dementia. Several studies show that Alzheimer’s develops at a rate of 10–15% per year from MCI. The early identification of patients with MCI may halt/delay the progression from MCI stage to Alzheimer’s. The results with the precision of 0.85 with the QSVM compared to the precision of 0.78 and recall of 1.00 compared to the 0.89 with the traditional SVM shows that our technique of Quantum Machine Learning (QML) is very useful in Alzheimer’s early diagnosis.
Alzheimer's disease (AD), a progressive neurodegenerative disorder, presents significant challenges in early diagnosis and treatment. Advancements in Artificial Intelligence (AI), Machine Learning (ML), and Deep Learning (DL), when combined with the power of computation of Quantum Computing (QC), offer promising avenues for the prediction and diagnosis of AD. This literature review surveys twenty research studies exploring the combination of QC with AI/ML/DL for AD prediction and compared through algorithms, evaluation metrics, time for training, datasets separately for ML and DL models. Challenges in current implementations and directions for research work are identified in review summary. The novelty of this review lies in its systematic comparison of quantum-assisted AI models across both machine learning and deep learning paradigms for Alzheimer’s detection, highlighting recent (2020–2024) research progress, performance benchmarks, and open challenges.
The population aged 60 years is rapid increased to 20% of the total Indian population according to the statistics. Alzheimer is a disease which is a neurogenerative disorder. It is considered as the major cause of dementia. India is in critical scenario that faces increase in the elder population suffering from dementia. Hence, there arise a need for early diagnosis of Alzheimer disease (AD) in order to improve the patient’s mental health condition. Though, the existing diagnostic methods are accurate and fast computing, there arise a need to propose a model that aids in improved accuracy and reducing the computational time for early prediction of AD.The proposed model uses Enhanced variational Quantum Network(VAQ) that aids in improving the potential of AD in terms of accuracy and time complexity is designed to decide the feature extraction by processing the huge voluminous images and then fed the outcome into the classifier model. Alzheimer disease neuroimaging stage I and stage II are the datasets considered for applying VAQ for AD prediction. Both stage I and stage II dataset were combined together in order to process the resource efficiently for the diagnosis performs feature extraction and then the results been fed as input to the Quantum classifier. The classifier processes the data and classify the images as no dement, mild dement, average dement, very mild dement. The results are compared with already existing Convolutional Neural Network model (CNN) and Ensemble Classifier.