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Intelligent skin cancer diagnosis using improved particle swarm optimization and deep learning models

Version 2 2024-06-06, 08:11
Version 1 2019-09-05, 12:17
journal contribution
posted on 2024-06-06, 08:11 authored by TY Tan, L Zhang, Chee Peng LimChee Peng Lim
© 2019 In this research, we propose an intelligent decision support system for skin cancer detection. Since generating an effective lesion representation is a vital step to ensure the success of lesion classification, the discriminative power of different types of features is exploited. Specifically, we combine clinically important asymmetry, border irregularity, colour and dermoscopic structure features with texture features extracted using Grey Level Run Length Matrix, Local Binary Patterns, and Histogram of Oriented Gradients operators for lesion representation. Then, we propose two enhanced Particle Swarm Optimization (PSO) models for feature optimization. The first model employs adaptive acceleration coefficients, multiple remote leaders, in-depth sub-dimension feature search and re-initialization mechanisms to overcome stagnation. The second model uses random acceleration coefficients, instead of adaptive ones, based on non-linear circle, sine and helix functions, respectively, to increase diversification and intensification. Ensemble classifiers are also constructed with each base model trained using each optimized feature subset. A deep convolutional neural network is devised whose hyper-parameters are fine-tuned using the proposed PSO models. Extensive experimental studies using dermoscopic skin lesion data, medical data from the UCI machine learning repository, and ALL-IDB2 image data are conducted to evaluate the model efficiency systematically. The results from empirical evaluations and statistical tests indicate the superiority of the proposed models over other advanced PSO variants and classical search methods pertaining to discriminative feature selection and optimal hyper-parameter identification for deep learning networks in lesion classification as well as other disease diagnosis.

History

Journal

Applied Soft Computing Journal

Volume

84

Article number

ARTN 105725

Pagination

1 - 19

Location

Amsterdam, The Netherlands

ISSN

1568-4946

eISSN

1872-9681

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Publisher

ELSEVIER