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Articles

Improving the Performance of Classifiers by Ensemble Techniques for the Premature Finding of Unusual Birth Outcomes from Cardiotocography

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Pages 1734-1744 | Published online: 23 Apr 2021
 

Abstract

In the present era of the medical field, the mortality rate of the infant increased by 1/3 percentage in a year. Even though we have modernized and have great expertise in the medical domain, we failed to control the infantile mortality rate. So continuous monitoring of the fetus during pregnancy is important. If there is any complication in the growth of the fetus, then the patient is put into the appropriate examination and medication proposed by the physician. In this paper, we propose methods to control the infant mortality rate in the early stage of pregnancy. Fetal heart rate of 2126 patients was collected and developed as datasets. Then with these datasets, we developed machine learning classifier models to classify the normal, suspect, and pathologic cases using the Decision tree, Naive Bayes, Random forest, and K-nearest neighbors. We divided the datasets into training dataset and testing dataset. Then the base classifier model was created using training datasets, and then the same models were verified by appending the test datasets. We improved the techniques and efficacy of the base classifiers by ensemble methods such as bagging and boosting. Finally, the datasets were classified as normal, suspect, and pathological cases with an improved accuracy of 96.617% with the help of the random forest classifier.

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Notes on contributors

M. Manikandan

M Manikandan received his bachelor's degree in ECE from Kathir College of Engineering, Coimbatore, in 2012; master's degree in applied electronics from the same institution in 2014. He is currently pursuing PhD at the Faculty of Information and Communication from Anna University, Chennai, in biomedical and image processing. His research interests are machine learning, deep learning, neural networks, and biomedical image processing.

P. Vijayakumar

P Vijayakumar got graduated in electrical and electronics engineering from PSG College of Technology in 1992. He obtained his postgraduation in applied electronics from PSG College of Technology in 2002. He received his doctorate from Anna University, Chennai, in 2007 with specialization in low power VLSI design. His areas of interest include VLSI design, instrumentation and automation. He has over 21 years of teaching experience and about 7 years of industrial experience. He has successfully guided 10 PhD scholars. Email: [email protected]

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