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基因表达式程序设计的GRCM方法 被引量:25
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作者 姜大志 吴志健 +2 位作者 康立山 汤铭端 李康顺 《系统仿真学报》 EI CAS CSCD 北大核心 2006年第6期1466-1468,共3页
基因表达式程序设计是一种基于基因组和表现型组的新型遗传算法,该算法在运行时具有很高的运行效率,实验表明在求解很多问题的时候比遗传程序设计在速度上优越两个数量级以上。在基因表达式的基础上,提出了基因阅读运算器方法,此方法不... 基因表达式程序设计是一种基于基因组和表现型组的新型遗传算法,该算法在运行时具有很高的运行效率,实验表明在求解很多问题的时候比遗传程序设计在速度上优越两个数量级以上。在基因表达式的基础上,提出了基因阅读运算器方法,此方法不需要把染色体转换为表达式树,而是直接对染色体进行操作得到该染色体的适应值。实验表明,采用这种方法不仅简单有效,而且能提高运算的速度。 展开更多
关键词 遗传算法 基因表达式程序设计 演化建模 grcm
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An Efficient Hybrid Optimization for Skin Cancer Detection Using PNN Classifier
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作者 J.Jaculin Femil T.Jaya 《Computer Systems Science & Engineering》 SCIE EI 2023年第6期2919-2934,共16页
The necessity of on-time cancer detection is extremely high in the recent days as it becomes a threat to human life.The skin cancer is considered as one of the dangerous diseases among other types of cancer since it c... The necessity of on-time cancer detection is extremely high in the recent days as it becomes a threat to human life.The skin cancer is considered as one of the dangerous diseases among other types of cancer since it causes severe health impacts on human beings and hence it is highly mandatory to detect the skin cancer in the early stage for providing adequate treatment.Therefore,an effective image processing approach is employed in this present study for the accurate detection of skin cancer.Initially,the dermoscopy images of skin lesions are retrieved and processed by eliminating the noises with the assistance of Gaborfilter.Then,the pre-processed dermoscopy image is segmented into multiple regions by implementing cascaded Fuzzy C-Means(FCM)algorithm,which involves in improving the reliability of cancer detection.The A Gabor Response Co-occurrence Matrix(GRCM)is used to extract melanoma parameters in an effi-cient manner.A hybrid Particle Swarm Optimization(PSO)-Whale Optimization is then utilized for efficiently optimizing the extracted features.Finally,the fea-tures are significantly classified with the assistance of Probabilistic Neural Net-work(PNN)classifier for classifying the stages of skin lesion in an optimal manner.The whole work is stimulated in MATLAB and the attained outcomes have proved that the introduced approach delivers optimal results with maximal accuracy of 97.83%. 展开更多
关键词 Gaborfilter grcm hybrid PSO-whale optimization algorithm PNN classifier
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