{"id":77809,"date":"2026-02-25T15:27:06","date_gmt":"2026-02-25T07:27:06","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77809.html"},"modified":"2026-02-25T15:27:06","modified_gmt":"2026-02-25T07:27:06","slug":"%e3%80%90%e4%ba%a4%e9%80%9a%e6%b5%81%e9%87%8f%e9%a2%84%e6%b5%8b%e3%80%91%e5%9f%ba%e4%ba%8ega%e4%bc%98%e5%8c%96bp%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77809.html","title":{"rendered":"\u3010\u4ea4\u901a\u6d41\u91cf\u9884\u6d4b\u3011\u57fa\u4e8eGA\u4f18\u5316BP\u795e\u7ecf\u7f51\u7edc"},"content":{"rendered":"

\u7814\u7a76\u8bfe\u9898：<\/span><\/h2>\n

\u57fa\u4e8eGA\u4f18\u5316BP\u795e\u7ecf\u7f51\u7edc\u7684\u77ed\u65f6\u4ea4\u901a\u6d41\u91cf\u9884\u6d4b<\/p>\n

\u5173\u952e\u8bcd：<\/span><\/h2>\n

\u4ea4\u901a\u6d41\u91cf；\u9057\u4f20\u7b97\u6cd5GA； BP\u795e\u7ecf\u7f51\u7edc； Matlab<\/p>\n

\u6539\u8fdb\u65b9\u5411：<\/span><\/h2>\n

\u6700\u4f73\u9690\u542b\u5c42\u8282\u70b9 + \u9057\u4f20\u7b97\u6cd5\u4f18\u5316\u521d\u59cb\u6743\u503c\u548c\u9608\u503c<\/p>\n

\u8bfe\u9898\u8bf4\u660e：<\/span><\/h2>\n

\u57ce\u5e02\u4ea4\u901a\u8def\u7f51\u4e2d\u4ea4\u901a\u8def\u6bb5\u4e0a\u67d0\u65f6\u523b\u7684\u4ea4\u901a\u6d41\u91cf\u4e0e\u672c\u8def\u6bb5\u524d\u51e0\u4e2a\u65f6\u6bb5\u7684\u4ea4\u901a\u6d41\u91cf\u6709\u5173，\u5e76\u4e14\u4ea4\u901a\u6d41\u91cf\u5177\u670924\u5c0f\u65f6\u5185\u51c6\u5468\u671f\u7684\u7279\u6027\u3002\u9996\u5148\u91c7\u96c64 \u5929\u7684\u4ea4\u901a\u6d41\u91cf\u6570\u636e，\u6bcf\u969415 \u5206\u949f\u8bb0\u5f55\u4e00\u6b21\u8be5\u6bb5\u65f6\u95f4\u5185\u7684\u4ea4\u901a\u6d41\u91cf，\u4e00\u5171\u8bb0\u5f55384\u4e2a\u65f6\u95f4\u70b9\u7684\u6570\u636e\u3002\u75283\u5929\u5171288 \u4e2a\u4ea4\u901a\u6d41\u91cf\u7684\u6570\u636e\u8bad\u7ec3\u5c0f\u6ce2\u795e\u7ecf\u7f51\u7edc， \u6700\u540e\u7528\u8bad\u7ec3\u597d\u7684\u5c0f\u6ce2\u795e\u7ecf\u7f51\u7edc\u9884\u6d4b\u7b2c4 \u5929\u7684\u4ea4\u901a\u6d41\u91cf\u3002\u4eff\u771f\u62df\u91c7\u7528\u524d4\u4e2a\u65f6\u95f4\u8282\u70b9\u7684\u4ea4\u901a\u6d41\u91cf\u9884\u6d4b\u7b2c5\u4e2a\u65f6\u95f4\u8282\u70b9；\u5373\u53ef\u4ee5\u7406\u89e3\u4e3a\u7b2c1-4\u8282\u70b9\u9884\u6d4b\u7b2c5\u4e2a\u8282\u70b9，\u7b2c2-5\u8282\u70b9\u9884\u6d4b\u7b2c6\u4e2a\u8282\u70b9，\u4f9d\u6b21\u7c7b\u63a8\u6784\u5efa\u8bad\u7ec3\u6570\u636e\u548c\u6d4b\u8bd5\u6570\u636e\u3002\u4e00\u592996\u4e2a\u65f6\u95f4\u8282\u70b9，\u6309\u7167\u4e0a\u8ff0\u903b\u8f91\u53ef\u4ee5\u7ec4\u540892\u7ec4\u6570\u636e；\u90a3\u4e483\u5929288\u4e2a\u65f6\u95f4\u8282\u70b9\u53ef\u4ee5\u7ec4\u5408276\u7ec45\u7ef4\u6570\u636e（\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u7684\u662f，\u53ea\u80fd\u5f53\u5929\u6570\u636e\u7ec4\u5408\u6a21\u578b\u6570\u636e，\u65453\u5929\u53ef\u4ee5\u5f97\u523092*3=276\u7ec4\u6570\u636e）\u3002\u6d4b\u8bd5\u6570\u636e\u4e3a\u7b2c4\u5929\u768496\u4e2a\u8282\u70b9，\u53ef\u4ee5\u7ec4\u540892\u7ec45\u7ef4\u6d4b\u8bd5\u6570\u636e\u3002<\/p>\n

\u5173\u4e8e\u6570\u636e：\u4e3a\u4ec0\u4e48288\u4e2a\u4ea4\u901a\u6d41\u91cf\u6570\u636e，\u6700\u540e\u8bad\u7ec3\u6570\u636einput=276*4；output=276*1 ？<\/p>\n

\u56e0\u4e3a\u4e00\u5929\u603b\u517196\u7ec4\u65f6\u95f4\u8282\u70b9\u7684\u4ea4\u901a\u6d41\u91cf；\u56e0\u4e3a\u524d4\u4e2a\u8282\u70b9\u9884\u6d4b\u7b2c5\u4e2a\u8282\u70b9，\u6545\u7b2c1\u30012\u30013\u30014\u4f5c\u4e3a\u7b2c\u4e00\u7ec4 \u8bad\u7ec3\u8f93\u5165，\u7b2c5\u5929\u4f5c\u4e3a\u7b2c\u4e00\u7ec4\u8f93\u51fa；\u7b2c2\u30013\u30014\u30015\u4f5c\u4e3a\u7b2c\u4e8c\u7ec4\u8bad\u7ec3\u8f93\u5165，\u7b2c6\u5929\u4f5c\u4e3a\u7b2c\u4e8c\u7ec4\u8f93\u51fa…. \u6700\u540e，\u7b2c92\u300193\u300194\u300195\u4f5c\u4e3a\u7b2c92\u7ec4\u8f93\u5165，\u7b2c96\u4e2a\u8282\u70b9\u4f5c\u4e3a\u7b2c92\u7ec4\u8f93\u51fa\u3002\u6240\u4ee5\u4e00\u592996\u4e2a\u8282\u70b9\u6700\u540e\u53ea\u80fd\u670992\u7ec44\u7ef4\u8f93\u5165\u548c1\u4e3a\u8f93\u51fa\u3002\u6240\u4ee5\u6d4b\u8bd5\u6570\u636einput_test\u548coutput_test\u662f92*4\u548c92*1\u3002<\/p>\n

\u7b97\u6cd5\u6d41\u7a0b：<\/span><\/h2>\n
  • \u6570\u636e\u91cd\u65b0\u6784\u9020：\u6309\u7167\u8bfe\u9898\u8bf4\u660e\u4e2d\u7684\u9700\u6c42\u91cd\u65b0\u6784\u9020\u6570\u636e，\u6784\u9020\u540e\u7684\u6570\u636e\u5305\u542b276\u7ec4\u8bad\u7ec3\u6570\u636e\u548c92\u7ec4\u6d4b\u8bd5\u6570\u636e<\/li>\n
  • \u7f51\u7edc\u521b\u5efa： \u6570\u636e\u91c7\u96c6\u540e，\u5229\u7528Matlab\u81ea\u5e26\u7684\u795e\u7ecf\u7f51\u7edc\u5de5\u5177\u7bb1\u4e2d\u7684\u51fd\u6570newff（）\u53ef\u4ee5\u6784\u5efa\u4e00\u4e2aBP\u795e\u7ecf\u7f51\u7edc\u3002\u8c03\u7528\u683c\u5f0f\u5177\u4f53\u7ec6\u8282\u89c1\u4e0b\u9762<\/li>\n
  • \u786e\u5b9a\u6700\u4f73\u9690\u542b\u5c42\u8282\u70b9\u6570：\u901a\u8fc7\u8fed\u4ee3\u5bfb\u4f18\u7684\u65b9\u5f0f，\u786e\u5b9a\u6700\u4f73\u9690\u542b\u5c42\u8282\u70b9\u6570<\/li>\n
  • \u7f51\u7edc\u8bad\u7ec3：\u7f51\u7edc\u521b\u5efa\u5b8c\u6bd5\u540e，\u82e5\u9700\u8981，\u8fd8\u53ef\u4ee5\u5bf9\u795e\u7ecf\u7f51\u7edc\u7684\u53c2\u6570\u8fdb\u884c\u8bbe\u7f6e\u548c\u4fee\u6539，\u5c06\u8bad\u7ec3\u96c6276\u7ec4\u6570\u636e\u636e\u8f93\u5165\u7f51\u7edc，\u4fbf\u53ef\u4ee5\u5bf9\u7f51\u7edc\u8fdb\u884c\u8bad\u7ec3<\/li>\n
  • BP\u795e\u7ecf\u7f51\u7edc\u4eff\u771f：\u7f51\u7edc\u901a\u8fc7\u8bad\u7ec3\u540e，\u5c06\u6d4b\u8bd5\u6570\u636e\u96c6\u768492\u7ec4\u6d4b\u8bd5\u6570\u636e\u8f93\u5165\u5230\u7f51\u7edc\u91cc，\u4fbf\u53ef\u4ee5\u5f97\u5230\u5bf9\u5e94\u7684\u8f93\u51fa<\/li>\n
  • \u521b\u5efa\u67d3\u8272\u4f53\u548c\u79cd\u7fa4：\u521d\u59cb\u5316\u9057\u4f20\u7b97\u6cd5\u7684\u53c2\u6570，\u6784\u5efa\u67d3\u8272\u4f53\u548c\u79cd\u7fa4， \u5b9a\u4e49\u9002\u5e94\u5ea6\u51fd\u6570<\/li>\n
  • \u7b97\u6cd5\u8fed\u4ee3：\u901a\u8fc7\u79cd\u7fa4\u8fed\u4ee3，\u6c42\u89e3\u6700\u4f18\u67d3\u8272\u4f53，\u89e3\u6790\u51fa\u67d3\u8272\u4f53\u4e2d\u5305\u542b\u7684\u795e\u7ecf\u7f51\u7edc\u521d\u59cb\u6743\u503c\u548c\u9608\u503c<\/li>\n
  • \u6784\u5efaGA-BP\u795e\u7ecf\u7f51\u7edc\u4e0e\u4eff\u771f：\u628a\u89e3\u6790\u51fa\u6765\u7684\u6700\u4f73\u521d\u59cb\u6743\u503c\u548c\u9608\u503c\u8d4b\u503c\u7ed9BP\u795e\u7ecf\u7f51\u7edc，\u5e76\u5c06\u6d4b\u8bd5\u6570\u636e\u96c6\u4ee3\u5165\u5230\u795e\u7ecf\u7f51\u7edc\u4e2d，\u5f97\u5230\u5bf9\u5e94\u7684\u8f93\u51fa\u3002<\/li>\n
  • \u7ed3\u679c\u5206\u6790：\u901a\u8fc7\u5bf9\u7f51\u7edc\u4eff\u771f\u7ed3\u679c\u7684\u5206\u6790，\u53ef\u4ee5\u5f97\u5230\u8bef\u5dee\u503c\u3001\u7edd\u5bf9\u8bef\u5dee\u503c\u4e4b\u548c\u3001\u8bef\u5dee\u767e\u5206\u6bd4<\/li>\n

    BP\u795e\u7ecf\u7f51\u7edc\u8c03\u7528\u683c\u5f0f：<\/span><\/h2>\n

    net=newff（P,T,S,TF,BTF,BLF,PF,IPF,OPF,DDF)<\/p>\n

      \n
    • P:\u8f93\u5165\u6570\u636e\u77e9\u9635； T：\u8f93\u51fa\u6570\u636e\u77e9\u9635； S：\u9690\u542b\u5c42\u8282\u70b9\u6570<\/li>\n
    • TF：\u8282\u70b9\u4f20\u9012\u51fd\u6570；\u00a0 BTF：\u8bad\u7ec3\u51fd\u6570；\u00a0 BLF：\u7f51\u7edc\u5b66\u4e60\u51fd\u6570<\/li>\n
    • PF：\u6027\u80fd\u5206\u6790\u51fd\u6570；\u00a0 IPF：\u8f93\u5165\u5904\u7406\u51fd\u6570；\u00a0 OPF：\u8f93\u51fa\u5904\u7406\u51fd\u6570； DDF：\u9a8c\u8bc1\u6570\u636e\u5212\u5206\u51fd\u6570<\/li>\n<\/ul>\n

      \u4e0d\u540c\u7684\u6570\u503c\u4f18\u5316\u65b9\u5f0f\u91c7\u7528\u4e0d\u540c\u7684\u8bad\u7ec3\u51fd\u6570<\/p>\n

        \n
      • Fletcher – Reeves \u5171\u8f6d\u68af\u5ea6\u6cd5： traincgf<\/li>\n
      • Polak – Ribiere \u5171\u8f6d\u68af\u5ea6\u6cd5： traincgp<\/li>\n
      • Powell-Beale \u5171\u8f6d\u68af\u5ea6\u6cd5： traincgb<\/li>\n
      • \u91cf\u5316\u5171\u8f6d\u68af\u5ea6\u6cd5： trainscg<\/li>\n
      • \u62df\u725b\u987f\u7b97\u6cd5： trainbfg<\/li>\n
      • \u4e00\u6b65\u6b63\u5272\u7684BP\u8bad\u7ec3\u6cd5： trainoss<\/li>\n
      • Levenberg – Marquardt \u8bad\u7ec3\u65b9\u6cd5： trainlm<\/li>\n<\/ul>\n

        \u53ea\u9700\u8981\u66ff\u6362newff\u51fd\u6570\u540e\u9762\u7684\u53d8\u91cf\u6765\u6d4b\u8bd5\u4e0d\u540c\u7684\u6570\u503c\u4f18\u5316\u65b9\u6cd5\u5bf9\u4e8eBP\u795e\u7ecf\u7f51\u7edc\u7684\u5f71\u54cd<\/p>\n

        \u5f85\u6539\u8fdb\u65b9\u5411：<\/span><\/h2>\n
          \n
        • GA\u7b97\u6cd5\u8fdb\u4e00\u6b65\u4f18\u5316，\u6bd4\u5982\u52a8\u6001GA\u3001GASA\u7b97\u6cd5\u7b49\u7b49<\/li>\n<\/ul>\n

          \u7279\u6b8a\u8bf4\u660e：<\/span><\/h2>\n
            \n
          • \u795e\u7ecf\u7f51\u7edc\u6bcf\u4e00\u6b21\u7684\u9884\u6d4b\u7ed3\u679c\u90fd\u4e0d\u76f8\u540c，\u4e3a\u4e86\u5f97\u5230\u66f4\u597d\u7684\u7ed3\u679c，\u5efa\u8bae\u591a\u6b21\u8fd0\u884c\u53d6\u6700\u4f73\u503c<\/li>\n<\/ul>\n

            Matlab\u4eff\u771f\u7ed3\u679c：<\/span><\/h2>\n

            \"\"<\/p>\n

            \"\"<\/p>\n

            \n

            \"\"<\/p>\n

            \"\"<\/p>\n

            \"\"<\/p>\n

            \n

            \n

            \"\"<\/p>\n

            \n

            \"\"<\/p>\n

            \n

            \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

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