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Immune response-based algorithm for optimization of dynamic environments
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作者 史旭华 钱锋 《Journal of Central South University》 SCIE EI CAS 2011年第5期1563-1571,共9页
A novel immune algorithm suitable for dynamic environments (AIDE) was proposed based on a biological immune response principle.The dynamic process of artificial immune response with operators such as immune cloning,mu... A novel immune algorithm suitable for dynamic environments (AIDE) was proposed based on a biological immune response principle.The dynamic process of artificial immune response with operators such as immune cloning,multi-scale variation and gradient-based diversity was modeled.Because the immune cloning operator was derived from a stimulation and suppression effect between antibodies and antigens,a sigmoid model that can clearly describe clonal proliferation was proposed.In addition,with the introduction of multiple populations and multi-scale variation,the algorithm can well maintain the population diversity during the dynamic searching process.Unlike traditional artificial immune algorithms,which require randomly generated cells added to the current population to explore its fitness landscape,AIDE uses a gradient-based diversity operator to speed up the optimization in the dynamic environments.Several reported algorithms were compared with AIDE by using Moving Peaks Benchmarks.Preliminary experiments show that AIDE can maintain high population diversity during the search process,simultaneously can speed up the optimization.Thus,AIDE is useful for the optimization of dynamic environments. 展开更多
关键词 dynamic optimization artificial immune algorithms immune response multi-scale variation
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一种基于角点与BP神经网络的文本检测及定位算法 被引量:1
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作者 唐思源 高琦 邢俊凤 《现代电子技术》 北大核心 2016年第4期112-115,共4页
检测并提取视频图像中的文本信息对视频图像和内容的理解意义重大。以现有的文本检测算法为基础,提出一种基于角点与BP神经网络相结合的文本检测算法。该算法首先应用多尺度角点算法提取文本角点信息并初步定位文本行,接着提取文本特征... 检测并提取视频图像中的文本信息对视频图像和内容的理解意义重大。以现有的文本检测算法为基础,提出一种基于角点与BP神经网络相结合的文本检测算法。该算法首先应用多尺度角点算法提取文本角点信息并初步定位文本行,接着提取文本特征,最后应用BP神经网络精确定位文本。实验结果表明,此算法与经典方法相比具有更高的正确率和鲁棒性,视频中文本的正确检测率达到90.3%。 展开更多
关键词 文本检测算法 多尺度角点算法 BP神经网络 文本信息提取
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