Research Area:  Machine Learning
The computer-aided diagnosis (CAD) method plays a considerable role in the automated recognition of medical images, considering the increasing numbers of lung cancer patients. Pulmonary nodules are a type of lung irregularity that can be detected early in the course of a patients life using CAD-based pulmonary patient diagnosis. For several classification methods of lung CT images, the existing method has a lower performance in early cancer diagnosis and a longer processing time. To improve the performance of the classification method in terms of processing time and accuracy, we propose a novel method to classify lung CT images. In the proposed method of lung cancer classification, we use Gabor filters with an enhanced Deep Belief Network (E-DBN) with multiple classification methods. In this E-DBN, we use two cascaded RBMs, Gaussian-Bernoulli (GB) and Bernoulli–Bernoulli (BB) RBMs. A support vector machine (SVM) gives the best performance parameters of all applied methods. Our proposed model uses a support vector machine with an E-DBN to classify lung CT images and improve performance parameters like accuracy, sensitivity, specificity, F-1 score, false positive rate (FPR), false negative rate (FNR), and ROC curve. The proposed approaches are tested and evaluated using three publicly available datasets: the LIDC-IDRI and LUNA-16 datasets.
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Author(s) Name:  Ebtasam Ahmad Siddiqui, Vijayshri Chaurasia, Madhu Shandilya
Journal name:  Chemometrics and Intelligent Laboratory Systems
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Publisher name:  ScienceDirect
DOI:  10.1016/j.chemolab.2023.104763
Volume Information:  Volume 235,(2023)
Paper Link:   https://www.sciencedirect.com/science/article/abs/pii/S0169743923000138