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1.
IEEE/ACM Trans Comput Biol Bioinform ; 20(5): 2700-2711, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37018274

RESUMO

Alzheimer's disease (AD) is a type of brain disorder that is regarded as a degenerative disease because the corresponding symptoms aggravate with the time progression. Single nucleotide polymorphisms (SNPs) have been identified as relevant biomarkers for this condition. This study aims to identify SNPs biomarkers associated with the AD in order to perform a reliable classification of AD. In contrast to existing related works, we utilize deep transfer learning with varying experimental analysis for reliable classification of AD. For this purpose, the convolutional neural networks (CNN) are firstly trained over the genome-wide association studies (GWAS) dataset requested from the AD neuroimaging initiative. We then employ the deep transfer learning for further training of our CNN (as base model) over a different AD GWAS dataset, to extract the final set of features. The extracted features are then fed into Support Vector Machine for classification of AD. Detailed experiments are performed using multiple datasets and varying experimental configurations. The statistical outcomes indicate an accuracy of 89% which is a significant improvement when benchmarked with existing related works.


Assuntos
Doença de Alzheimer , Imageamento por Ressonância Magnética , Humanos , Imageamento por Ressonância Magnética/métodos , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/genética , Estudo de Associação Genômica Ampla , Neuroimagem/métodos , Máquina de Vetores de Suporte , Biomarcadores
2.
BMC Med Inform Decis Mak ; 20(1): 93, 2020 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-32423465

RESUMO

An amendment to this paper has been published and can be accessed via the original article.

3.
BMC Med Inform Decis Mak ; 19(Suppl 9): 253, 2019 12 12.
Artigo em Inglês | MEDLINE | ID: mdl-31830980

RESUMO

BACKGROUND: Machine learning is a branch of Artificial Intelligence that is concerned with the design and development of algorithms, and it enables today's computers to have the property of learning. Machine learning is gradually growing and becoming a critical approach in many domains such as health, education, and business. METHODS: In this paper, we applied machine learning to the diabetes dataset with the aim of recognizing patterns and combinations of factors that characterizes or explain re-admission among diabetes patients. The classifiers used include Linear Discriminant Analysis, Random Forest, k-Nearest Neighbor, Naïve Bayes, J48 and Support vector machine. RESULTS: Of the 100,000 cases, 78,363 were diabetic and over 47% were readmitted.Based on the classes that models produced, diabetic patients who are more likely to be readmitted are either women, or Caucasians, or outpatients, or those who undergo less rigorous lab procedures, treatment procedures, or those who receive less medication, and are thus discharged without proper improvements or administration of insulin despite having been tested positive for HbA1c. CONCLUSION: Diabetic patients who do not undergo vigorous lab assessments, diagnosis, medications are more likely to be readmitted when discharged without improvements and without receiving insulin administration, especially if they are women, Caucasians, or both.


Assuntos
Diabetes Mellitus , Aprendizado de Máquina , Readmissão do Paciente , Algoritmos , Teorema de Bayes , Feminino , Humanos , Máquina de Vetores de Suporte
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