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Student, SZABIST

PINBOARD SUMMARY

Forgetting daily life tasks with reduced thinking ability and remembering skills may precisely be symptom of a disease known as Alzheimer's. It’s an irreversible brain disease which eventually causes death. About 43.8 million people worldwide are suffering from AD. It’s a fact that it can't be cured but we can slow down its progression. That’s why neurologist aim to diagnose it in early stages to provide better treatment plans and exercises. However, researchers are yet unable to answer which characteristics are important for the early diagnosis. I believe different factors like Demographics, age, race, eating habits play important role in the development of the disease. For this purpose, I have proposed a computer based model that takes different characteristics from data and produces certain rules and on the basis of these rule, it do the diagnosis. I aim to develop this model to let our loved ones live a better life in their old ages.

5 ITEMS PINNED

Advances on Automatic Speech Analysis for Early Detection of Alzheimer Disease: a Non-linear Multi-task Approach.

Abstract: Nowadays proper detection of cognitive impairment has become a challenge for the scientific community. Alzheimer's Disease (AD), the most common cause of dementia, has a high prevalence that is increasing at a fast pace towards epidemic level. In the not-so-distant future this fact could have a dramatic social and economic impact. In this scenario, an early and accurate diagnosis of AD could help to decrease its effects on patients, relatives and society. Over the last decades there have been useful advances not only in classic assessment techniques, but also in novel non-invasive screening methodologies. Among these methods, automatic analysis of speech -one of the first damaged skills in AD patients- is a natural and useful low cost tool for diagnosis. In this paper a non-linear multi-task approach based on automatic speech analysis is presented. Three tasks with different language complexity levels are analyzed, and promising results that encourage a deeper assessment are obtained. Automatic classification was carried out by using classic Multilayer Perceptron (MLP) and Deep Learning by means of Convolutional Neural Networks (CNN) (biologically-inspired variants of MLPs) over the tasks with classic linear features, perceptual features, Castiglioni fractal dimension and Multiscale Permutation Entropy. Finally, the most relevant features are selected by means of the non-parametric Mann-Whitney U-test.

Pub.: 23 Nov '17, Pinned: 30 Jan '18

A Wrapped Multi-label Classifier for the Automatic Diagnosis and Prognosis of Alzheimer's Disease.

Abstract: AD is the most frequent neurodegenerative disease, severely impacting our society. Early diagnosis and prognosis are challenging tasks in the management of AD patients.We implemented a machine-learning classifier for the automatic early diagnosis and prognosis of AD by means of features extracted, selected and optimized from structural MRI brain images. The classifier was designed to perform multi-label automatic classification into the following four classes: HC, ncMCI, cMCI, and AD.From our analyses, it emerged that MMSE and hippocampus-related measures must be included as primary measures in automatic-classification systems for both the early diagnosis and the prognosis of AD. The voting scheme mainly based on the binary-classification performances on the different four groups is the best choice to model the multi-label decision function for AD, when compared with a simple majority-vote scheme or with a scheme aimed at discriminating patients with high vs low risk of conversion to AD and therapy addressing.The accuracies of our binary classifications were higher than or comparable to previously published methods. An improvement is needed on the approach we used to combine binary-classification outputs to obtain the final multi-label classification.The performance of multi-label automatic-classification systems strongly depends on the choice of the voting scheme used for combining binary-classification labels.

Pub.: 14 Jan '18, Pinned: 30 Jan '18

Use of multimodality imaging and artificial intelligence for diagnosis and prognosis of early stages of Alzheimer's disease.

Abstract: Alzheimer's disease (AD) is a major neurodegenerative disease and the most common cause of dementia. Currently, no treatment exists to slow down or stop the progression of AD. There is converging belief that disease-modifying treatments should focus on early stages of the disease, that is, the mild cognitive impairment (MCI) and preclinical stages. Making a diagnosis of AD and offering a prognosis (likelihood of converting to AD) at these early stages are challenging tasks but possible with the help of multimodality imaging, such as magnetic resonance imaging (MRI), fluorodeoxyglucose-positron emission topography (PET), amyloid-PET, and recently introduced tau-PET, which provides different but complementary information. This article is a focused review of existing research in the recent decade that used statistical machine learning and artificial intelligence methods to perform quantitative analysis of multimodality image data for diagnosis and prognosis of AD at the MCI or preclinical stages. We review the existing work in 3 subareas: diagnosis, prognosis, and methods for handling modality-wise missing data-a commonly encountered problem when using multimodality imaging for prediction or classification. Factors contributing to missing data include lack of imaging equipment, cost, difficulty of obtaining patient consent, and patient drop-off (in longitudinal studies). Finally, we summarize our major findings and provide some recommendations for potential future research directions.

Pub.: 22 Jan '18, Pinned: 30 Jan '18