Journal
NEURAL NETWORK WORLD
Volume 23, Issue 2, Pages 149-167Publisher
ACAD SCIENCES CZECH REPUBLIC, INST COMPUTER SCIENCE
DOI: 10.14311/NNW.2013.23.011
Keywords
Kohonen neural network; retinal images; fuzzy C-means and accuracy
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Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi, India [22(0592)/12/EMR-II]
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Artificial Neural Network (ANN) is the primary automated AI system preferred for medical applications. Even though ANN possesses multiple advantages, the convergence of the ANN is not always guaranteed for the practical applications. This often results in the local minima problem and ultimately yields inaccurate results. This convergence problem is common among ANNs and especially in Kohonen neural networks which employ unsupervised training methodology. In this work, an Efficient Kohonen Fuzzy Neural (EKFN) network is proposed to eliminate the iteration dependent nature of the conventional system. The suitability of this hybrid automated system is illustrated in the context of pathology identification in retinal images. This disease identification system includes anatomical structure segmentation from retinal images followed by image classification. The performance measures used are accuracy, sensitivity, specificity, positive predictive value and positive likelihood ratio. Experimental results show promising possibilities for the hybrid systems in terms of performance measures.
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