鹈鹕优化算法POA改进广义神经网络GRNN，构建多特征输入单变量输出预测模型-Matlab实现与注释详解,鹈鹕优化算法POA改进广义神经网络GRNN，构建多特征输入单变量输出预测模型-Matlab

fxwlOoIkvQrCZIP鹈鹕优化算法优化广义神经网络做多  1.85MB

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  5. 本文将通过鹈鹕优化算法来优化广义径向基函数神经网.html 659.01KB
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鹈鹕优化算法POA改进广义神经网络GRNN，构建多特征输入单变量输出预测模型——Matlab实现与注释详解,鹈鹕优化算法POA改进广义神经网络GRNN，构建多特征输入单变量输出预测模型——Matlab实现与注释详解,鹈鹕优化算法POA优化广义神经网络GRNN做多特征输入，单个因变量输出的拟合预测模型。 程序内注释详细直接替数据就可以用。 程序语言为matlab。 ,鹈鹕优化算法（POA）优化；广义神经网络（GRNN）；多特征输入；单因变量输出；拟合预测模型；Matlab程序；注释直接替换数据。,基于POA优化GRNN的多特征输入单因变量输出拟合预测模型（Matlab程序内详解）
<link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90425929/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90425929/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">探索<span class="_ _0"> </span><span class="ff2">POA<span class="_ _0"> </span></span>优化算法与<span class="_ _0"> </span><span class="ff2">GRNN<span class="_ _0"> </span></span>在多特征输入单因变量输出场景的实践与洞见</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">摘要：</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">本文<span class="_ _1"></span>将详<span class="_ _1"></span>细探<span class="_ _1"></span>讨<span class="_ _0"> </span><span class="ff2">POA<span class="_ _1"></span></span>（<span class="ff2">Pathway <span class="_ _1"></span>Optimization Algorithm<span class="_ _1"></span></span>）优<span class="_ _1"></span>化算<span class="_ _1"></span>法在<span class="_ _1"></span>广义<span class="_ _1"></span>神经<span class="_ _1"></span>网络<span class="_ _2"> </span><span class="ff2">GRNN</span></div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">（<span class="ff2">General Regression Neural Network</span>）中的应用。我<span class="_ _1"></span>们将通过<span class="_ _0"> </span><span class="ff2">MATLAB<span class="_"> </span></span>编程语言，构建一</div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">个多<span class="_ _1"></span>特征输<span class="_ _1"></span>入、<span class="_ _1"></span>单个因<span class="_ _1"></span>变量<span class="_ _1"></span>输出的<span class="_ _1"></span>拟合<span class="_ _1"></span>预测模<span class="_ _1"></span>型，<span class="_ _1"></span>并深入<span class="_ _1"></span>分析<span class="_ _1"></span>鹈鹕<span class="_ _1"></span>优化算<span class="_ _1"></span>法在<span class="_ _1"></span>其中的<span class="_ _1"></span>优势<span class="_ _1"></span>。</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">文章中将包含详细的程序内注释，方便直接替换数据使用。</div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">一、引子</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">在人工智能领域，<span class="_ _3"></span>如何更好地利用海量数据进行高效的预测与决策是一个关键议题。<span class="_ _3"></span><span class="ff2">GRNN</span></div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">作为一种有效的神经网络模型，<span class="_ _4"></span>对于多特征输入和单个因变量的输出具有很高的拟合预测能</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">力。然而，模型优化<span class="_ _1"></span>算法的选型却对最终的效果<span class="_ _1"></span>起着决定性作用。本篇文章<span class="_ _1"></span>将以<span class="_ _0"> </span><span class="ff2">POA<span class="_ _0"> </span></span>优化</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">算法作为突破口，探讨其与<span class="_ _0"> </span><span class="ff2">GRNN<span class="_ _0"> </span></span>的融合应用。</div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">二、<span class="ff2">POA<span class="_ _0"> </span></span>优化算法简介</div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">POA<span class="_"> </span><span class="ff1">算法是一<span class="_ _1"></span>种路径优<span class="_ _1"></span>化算法，<span class="_ _1"></span>其核心<span class="_ _1"></span>思想是通<span class="_ _1"></span>过优化路<span class="_ _1"></span>径寻找<span class="_ _1"></span>最优解。<span class="_ _1"></span>在神经网<span class="_ _1"></span>络的训</span></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">练过程<span class="_ _1"></span>中，<span class="ff2">POA<span class="_"> </span></span>能够根<span class="_ _1"></span>据网络的<span class="_ _1"></span>反馈信息<span class="_ _1"></span>，智能地<span class="_ _1"></span>调整网<span class="_ _1"></span>络参数，<span class="_ _1"></span>以达到更<span class="_ _1"></span>好的预测<span class="_ _1"></span>效果。</div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">三、<span class="ff2">GRNN<span class="_ _0"> </span></span>模型构建</div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">GRNN<span class="_ _0"> </span><span class="ff1">是一种回归神经网络，<span class="_ _5"></span>特别适用于多特征输入和单个因变量的输出场景。<span class="_ _5"></span>在<span class="_ _0"> </span><span class="ff2">MATLAB</span></span></div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">中，<span class="_ _3"></span>我们首先需要定义网络的层数、<span class="_ _3"></span>神经元数量等参数，<span class="_ _6"></span>并初始化权重和偏置。<span class="_ _6"></span>接着，<span class="_ _3"></span>我们</div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">将输入数据和输出数据进行训练，使网络能够学习到数据间的关系。</div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">四、<span class="ff2">POA<span class="_ _0"> </span></span>与<span class="_ _0"> </span><span class="ff2">GRNN<span class="_ _0"> </span></span>的融合</div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">在<span class="_ _0"> </span><span class="ff2">GRNN<span class="_"> </span></span>模型<span class="_ _1"></span>中引入<span class="_ _2"> </span><span class="ff2">POA<span class="_"> </span></span>优化算<span class="_ _1"></span>法，<span class="_ _1"></span>可以进<span class="_ _1"></span>一步<span class="_ _1"></span>提高模<span class="_ _1"></span>型的预<span class="_ _1"></span>测能<span class="_ _1"></span>力。我<span class="_ _1"></span>们通<span class="_ _1"></span>过<span class="_ _0"> </span><span class="ff2">POA<span class="_"> </span></span>算</div><div class="t m0 x1 h2 y15 ff1 fs0 fc0 sc0 ls0 ws0">法调整<span class="_ _0"> </span><span class="ff2">GRNN<span class="_"> </span></span>的权重和偏置<span class="_ _1"></span>，使模型能够更<span class="_ _1"></span>好地拟合数据。在<span class="_ _2"> </span><span class="ff2">MATLAB<span class="_"> </span></span>程序中，我们将详</div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">细注释每一步的操作，以便读者能够轻松理解并替换数据。</div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">五、实验与分析</div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">我们使用一组实际数据对<span class="_ _0"> </span><span class="ff2">POA-GRNN<span class="_ _0"> </span></span>模型进行测试。<span class="_ _5"></span>通过对比传统的<span class="_ _0"> </span><span class="ff2">GRNN<span class="_"> </span></span>模型，<span class="_ _5"></span>我们发</div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0">现<span class="_ _0"> </span><span class="ff2">POA-GRNN<span class="_ _0"> </span></span>在拟合度和预测精度上都有显著提升。<span class="_ _6"></span>尤其是在处理多特征输入的复杂场景</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">时，<span class="ff2">POA-GRNN<span class="_ _0"> </span></span>能够更快地找到最优解，并提高预测的稳定性。</div><div class="t m0 x1 h2 y1b ff1 fs0 fc0 sc0 ls0 ws0">六、代码示例</div><div class="t m0 x1 h2 y1c ff1 fs0 fc0 sc0 ls0 ws0">下面是一段简单的<span class="_ _0"> </span><span class="ff2">MATLAB<span class="_ _0"> </span></span>代码示例，展示了如何将<span class="_ _0"> </span><span class="ff2">POA<span class="_"> </span></span>优化算法应用于<span class="_ _0"> </span><span class="ff2">G<span class="_ _7"></span>RNN<span class="_ _0"> </span><span class="ff1">模型：</span></span></div><div class="t m0 x1 h2 y1d ff2 fs0 fc0 sc0 ls0 ws0">```matlab</div><div class="t m0 x1 h2 y1e ff2 fs0 fc0 sc0 ls0 ws0">% <span class="_ _8"> </span><span class="ff1">定义<span class="_ _0"> </span></span>GRNN<span class="_ _8"> </span><span class="ff1">参数</span></div></div><div class="pi" data-data='{"ctm":[1.611830,0.000000,0.000000,1.611830,0.000000,0.000000]}'></div></div>
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