{"id":73425,"date":"2026-02-07T16:05:18","date_gmt":"2026-02-07T08:05:18","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/73425.html"},"modified":"2026-02-07T16:05:18","modified_gmt":"2026-02-07T08:05:18","slug":"%e6%b7%b1%e5%ba%a6%e5%ad%a6%e4%b9%a0%e5%85%a5%e9%97%a8%ef%bc%9a%e4%bb%8e%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c%e5%88%b0%e5%ae%9e%e6%88%98%e6%a0%b8%e5%bf%83%ef%bc%8c%e4%b8%80%e7%af%87%e8%ae%b2%e9%80%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/73425.html","title":{"rendered":"\u6df1\u5ea6\u5b66\u4e60\u5165\u95e8\uff1a\u4ece\u795e\u7ecf\u7f51\u7edc\u5230\u5b9e\u6218\u6838\u5fc3\uff0c\u4e00\u7bc7\u8bb2\u900f"},"content":{"rendered":"<p>\u5982\u679c\u8bf4\u4eba\u5de5\u667a\u80fd\u662f\u5f53\u4e0b\u79d1\u6280\u9886\u57df\u7684 \u201c\u9876\u6d41\u201d&#xff0c;\u90a3\u6df1\u5ea6\u5b66\u4e60\u7edd\u5bf9\u662f\u6491\u8d77\u8fd9\u4efd\u70ed\u5ea6\u7684\u6838\u5fc3\u6280\u672f\u652f\u67f1\u3002\u4f5c\u4e3a\u673a\u5668\u5b66\u4e60\u7684\u91cd\u8981\u5206\u652f&#xff0c;\u6df1\u5ea6\u5b66\u4e60\u51ed\u501f\u6a21\u62df\u4eba\u8111\u7684\u795e\u7ecf\u7f51\u7edc\u7ed3\u6784&#xff0c;\u5728\u56fe\u50cf\u8bc6\u522b\u3001\u8bed\u97f3\u4ea4\u4e92\u3001\u81ea\u7136\u8bed\u8a00\u5904\u7406\u7b49\u9886\u57df\u5c61\u521b\u5947\u8ff9&#xff0c;\u751a\u81f3\u50ac\u751f\u4e86 ChatGPT \u8fd9\u6837\u7684\u5343\u4ebf\u53c2\u6570\u7ea7\u5927\u6a21\u578b\u3002\u4eca\u5929&#xff0c;\u6211\u4eec\u5c31\u4ece\u57fa\u7840\u6982\u5ff5\u51fa\u53d1&#xff0c;\u4e00\u6b65\u6b65\u62c6\u89e3\u6df1\u5ea6\u5b66\u4e60\u7684\u6838\u5fc3\u903b\u8f91&#xff0c;\u5e2e\u4f60\u8f7b\u677e\u5165\u95e8\u8fd9\u95e8\u524d\u6cbf\u6280\u672f\u3002<\/p>\n<h2>\u4e00\u3001\u6df1\u5ea6\u5b66\u4e60\u662f\u4ec0\u4e48&#xff1f;\u6838\u5fc3\u903b\u8f91\u4e00\u76ee\u4e86\u7136<\/h2>\n<p>\u6df1\u5ea6\u5b66\u4e60\u662f\u673a\u5668\u5b66\u4e60\u9886\u57df\u4e2d\u4e00\u4e2a\u65b0\u7684\u7814\u7a76\u65b9\u5411<\/p>\n<p>\u5b83\u7684\u5173\u952e\u7279\u70b9\u7684\u662f&#xff1a;<\/p>\n<ul>\n<li>\u7528\u591a\u5c42\u795e\u7ecf\u7f51\u7edc\u642d\u5efa\u6a21\u578b&#xff0c;\u901a\u8fc7\u8f93\u5165\u5c42\u3001\u9690\u85cf\u5c42\u3001\u8f93\u51fa\u5c42\u7684\u4fe1\u53f7\u4f20\u9012\u5b9e\u73b0\u7279\u5f81\u5b66\u4e60&#xff1b;<\/li>\n<li>\u4f9d\u8d56\u53cd\u5411\u4f20\u64ad\u7b97\u6cd5\u4f18\u5316\u7f51\u7edc\u53c2\u6570&#xff0c;\u4e0d\u65ad\u7f29\u5c0f\u9884\u6d4b\u8bef\u5dee&#xff1b;<\/li>\n<li>\u64c5\u957f\u5904\u7406\u56fe\u50cf\u3001\u8bed\u97f3\u7b49\u975e\u7ed3\u6784\u5316\u6570\u636e&#xff0c;\u80fd\u4ece\u6d77\u91cf\u4fe1\u606f\u4e2d\u6316\u6398\u6df1\u5c42\u89c4\u5f8b\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001\u795e\u7ecf\u7f51\u7edc\u6784\u9020&#xff1a;\u4ece\u611f\u77e5\u5668\u5230\u591a\u5c42\u67b6\u6784<\/h3>\n<p>\u795e\u7ecf\u7f51\u7edc\u662f\u6df1\u5ea6\u5b66\u4e60\u7684 \u201c\u9aa8\u67b6\u201d&#xff0c;\u7406\u89e3\u5b83\u7684\u6784\u9020\u5c31\u80fd\u6293\u4f4f\u6280\u672f\u6838\u5fc3\u3002<\/p>\n<h4>1. \u57fa\u7840\u5355\u5143&#xff1a;\u795e\u7ecf\u5143\u4e0e\u6743\u91cd<\/h4>\n<p>\u6bcf\u4e2a\u795e\u7ecf\u5143\u5c31\u50cf\u4e00\u4e2a\u7b80\u5355\u7684\u8ba1\u7b97\u8282\u70b9&#xff0c;\u63a5\u6536\u591a\u4e2a\u8f93\u5165\u4fe1\u53f7&#xff08;x1\u3001x2\u3001\u2026xn&#xff09;&#xff0c;\u6bcf\u4e2a\u8f93\u5165\u90fd\u5bf9\u5e94\u4e00\u4e2a\u6743\u91cd&#xff08;w1\u3001w2\u3001\u2026wn&#xff09;\u2014\u2014 \u6743\u91cd\u76f8\u5f53\u4e8e\u4fe1\u53f7\u7684 \u201c\u91cd\u8981\u6027\u7cfb\u6570\u201d&#xff0c;\u51b3\u5b9a\u4e86\u8be5\u8f93\u5165\u5bf9\u8f93\u51fa\u7684\u5f71\u54cd\u7a0b\u5ea6\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"315\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080516-6986f23caf43a.png\" width=\"313\" \/><\/p>\n<p>\u8f93\u5165\u4fe1\u53f7\u7ecf\u8fc7\u52a0\u6743\u6c42\u548c\u540e&#xff0c;\u4f1a\u901a\u8fc7\u6fc0\u6d3b\u51fd\u6570&#xff08;\u5982 sigmoid&#xff09;\u8fdb\u884c\u975e\u7ebf\u6027\u8f6c\u6362&#xff0c;\u6700\u7ec8\u8f93\u51fa\u7ed3\u679c\u3002\u6fc0\u6d3b\u51fd\u6570\u662f\u5173\u952e&#xff0c;\u5b83\u8ba9\u795e\u7ecf\u7f51\u7edc\u80fd\u5904\u7406\u975e\u7ebf\u6027\u95ee\u9898&#xff0c;\u907f\u514d\u6ca6\u4e3a\u7b80\u5355\u7684\u7ebf\u6027\u6a21\u578b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"299\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080516-6986f23cef7ab.png\" width=\"721\" \/><\/p>\n<h4>2. \u57fa\u7840\u67b6\u6784&#xff1a;\u611f\u77e5\u5668\u4e0e\u591a\u5c42\u611f\u77e5\u5668<\/h4>\n<ul>\n<li>\u611f\u77e5\u5668&#xff1a;\u7531\u8f93\u5165\u5c42\u548c\u8f93\u51fa\u5c42\u7ec4\u6210\u7684\u4e24\u5c42\u795e\u7ecf\u7f51\u7edc&#xff0c;\u53ea\u80fd\u5904\u7406\u7ebf\u6027\u53ef\u5206\u7684\u6570\u636e&#xff08;\u6bd4\u5982\u7528\u76f4\u7ebf\u5212\u5206\u4e24\u7c7b\u70b9&#xff09;&#xff0c;\u5c40\u9650\u6027\u8f83\u5927&#xff1b;<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"251\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23d0d0aa.png\" width=\"379\" \/><\/p>\n<p>\u516c\u5f0f\u662f\u7ebf\u6027\u65b9\u7a0b\u7ec4&#xff0c;\u56e0\u4e3a\u53ef\u4ee5\u7528\u77e9\u9635\u4e58\u6cd5\u6765\u8868\u8fbe\u8fd9\u4e24\u4e2a\u516c\u5f0f<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"91\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23d42c8a.png\" width=\"519\" \/><\/p>\n<ul>\n<li>\u591a\u5c42\u611f\u77e5\u5668&#xff08;MLP&#xff09;&#xff1a;\u5728\u8f93\u5165\u5c42\u548c\u8f93\u51fa\u5c42\u4e4b\u95f4\u589e\u52a0\u4e86\u9690\u85cf\u5c42&#xff0c;\u8fd9\u662f\u795e\u7ecf\u7f51\u7edc\u80fd\u5904\u7406\u975e\u7ebf\u6027\u95ee\u9898\u7684\u6838\u5fc3\u3002\u9690\u85cf\u5c42\u53ef\u4ee5\u6709\u591a\u5c42&#xff0c;\u5c42\u6570\u8d8a\u591a&#xff0c;\u6a21\u578b\u7684\u7279\u5f81\u63d0\u53d6\u80fd\u529b\u8d8a\u5f3a&#xff08;\u8fd9\u4e5f\u662f \u201c\u6df1\u5ea6\u201d \u5b66\u4e60\u7684\u7531\u6765&#xff09;\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"239\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23d53abf.png\" width=\"717\" \/><\/p>\n<p>\u6b64\u5916&#xff0c;\u795e\u7ecf\u7f51\u7edc\u4e2d\u8fd8\u5b58\u5728\u504f\u7f6e\u8282\u70b9&#xff08;\u9ed8\u8ba4\u503c\u4e3a 1&#xff09;&#xff0c;\u5b83\u80fd\u8c03\u6574\u6a21\u578b\u7684\u8f93\u51fa\u57fa\u51c6&#xff0c;\u907f\u514d\u56e0\u8f93\u5165\u5168\u4e3a 0 \u5bfc\u81f4\u7f51\u7edc\u5931\u6548&#xff0c;\u901a\u5e38\u4e0d\u4f1a\u5728\u7ed3\u6784\u56fe\u4e2d\u660e\u786e\u753b\u51fa\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"412\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23d64d0c.png\" width=\"347\" \/><\/p>\n<h3>\u4e09\u3001\u6a21\u578b\u8bad\u7ec3&#xff1a;\u4ece\u635f\u5931\u51fd\u6570\u5230\u53cd\u5411\u4f20\u64ad<\/h3>\n<p>\u642d\u5efa\u597d\u795e\u7ecf\u7f51\u7edc\u540e&#xff0c;\u6838\u5fc3\u662f\u901a\u8fc7\u8bad\u7ec3\u8ba9\u6a21\u578b \u201c\u5b66\u4f1a\u201d \u89c4\u5f8b&#xff0c;\u8fd9\u4e00\u8fc7\u7a0b\u7684\u6838\u5fc3\u662f \u201c\u6700\u5c0f\u5316\u8bef\u5dee\u201d\u3002<\/p>\n<h4>1. \u635f\u5931\u51fd\u6570&#xff1a;\u8861\u91cf\u9884\u6d4b\u4e0e\u771f\u5b9e\u7684\u5dee\u8ddd<\/h4>\n<p>\u635f\u5931\u51fd\u6570&#xff08;Loss Function&#xff09;\u662f\u91cf\u5316\u9884\u6d4b\u503c&#xff08;<img decoding=\"async\" alt=\"y_{i}\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23dabd0d.png\" \/>&#xff09;\u4e0e\u771f\u5b9e\u503c&#xff08;y&#xff09;\u8bef\u5dee\u7684\u5de5\u5177&#xff0c;\u8bef\u5dee\u8d8a\u5c0f\u8bf4\u660e\u6a21\u578b\u6548\u679c\u8d8a\u597d\u3002\u5e38\u7528\u7684\u635f\u5931\u51fd\u6570\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u5747\u65b9\u5dee\u635f\u5931&#xff08;MSE&#xff09;&#xff1a;\u9002\u5408\u56de\u5f52\u4efb\u52a1&#xff0c;\u8ba1\u7b97\u9884\u6d4b\u503c\u4e0e\u771f\u5b9e\u503c\u7684\u5e73\u65b9\u5dee\u5e73\u5747\u503c&#xff1b;<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"77\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23db3761.png\" width=\"248\" \/><\/p>\n<ul>\n<li>\u4ea4\u53c9\u71b5\u635f\u5931&#xff1a;\u9002\u5408\u5206\u7c7b\u4efb\u52a1&#xff0c;\u5c24\u5176\u591a\u5206\u7c7b\u573a\u666f&#xff0c;\u901a\u8fc7\u6982\u7387\u5f52\u4e00\u5316\u540e\u53d6\u5bf9\u6570&#xff0c;\u653e\u5927\u9519\u8bef\u9884\u6d4b\u7684\u635f\u5931&#xff1b;<\/li>\n<li>0-1 \u635f\u5931\u51fd\u6570\u3001\u5e73\u5747\u7edd\u5bf9\u5dee\u635f\u5931\u7b49&#xff1a;\u6839\u636e\u5177\u4f53\u4efb\u52a1\u9009\u62e9\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u591a\u5206\u7c7b\u4e3a\u4f8b&#xff0c;\u6a21\u578b\u8f93\u51fa\u4f1a\u901a\u8fc7\u5f52\u4e00\u5316\u8f6c\u6362\u4e3a 0-1 \u4e4b\u95f4\u7684\u6982\u7387&#xff0c;\u82e5\u8f93\u5165 \u201c\u732b\u201d \u7684\u56fe\u7247&#xff0c;\u5bf9\u5e94 \u201c\u732b\u201d \u7c7b\u522b\u7684\u6982\u7387\u8d8a\u63a5\u8fd1 1&#xff0c;\u4ea4\u53c9\u71b5\u635f\u5931\u8d8a\u5c0f&#xff0c;\u6a21\u578b\u9884\u6d4b\u8d8a\u51c6\u786e\u3002<\/p>\n<h4>2. \u6b63\u5219\u5316&#xff1a;\u9632\u6b62\u8fc7\u62df\u5408\u7684\u5173\u952e<\/h4>\n<p>\u8fc7\u62df\u5408\u662f\u6a21\u578b\u8bad\u7ec3\u7684 \u201c\u5929\u654c\u201d\u2014\u2014 \u6307\u6a21\u578b\u5728\u8bad\u7ec3\u6570\u636e\u4e0a\u8868\u73b0\u6781\u597d&#xff0c;\u4f46\u5728\u65b0\u6570\u636e\u4e0a\u8bef\u5dee\u5f88\u5927\u3002\u6b63\u5219\u5316\u901a\u8fc7\u60e9\u7f5a\u8fc7\u5927\u7684\u6743\u91cd\u53c2\u6570&#xff08;<img decoding=\"async\" alt=\"w\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23dbf12e.png\" \/>&#xff09;&#xff0c;\u907f\u514d\u6a21\u578b\u8fc7\u5ea6\u4f9d\u8d56\u4e2a\u522b\u7279\u5f81&#xff0c;\u5e38\u7528\u7684\u6709\u4e24\u79cd&#xff1a;<\/p>\n<ul>\n<li>L1 \u6b63\u5219\u5316&#xff1a;\u5bf9\u6743\u91cd\u7edd\u5bf9\u503c\u6c42\u548c&#xff08;<img decoding=\"async\" alt=\"\\\\sum \\\\left | w_{i} \\\\right |\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23dc63b0.png\" \/>&#xff09;&#xff0c;\u4f1a\u8ba9\u90e8\u5206\u6743\u91cd\u53d8\u4e3a 0&#xff0c;\u5b9e\u73b0\u7279\u5f81\u7b5b\u9009&#xff1b;<\/li>\n<li>L2 \u6b63\u5219\u5316&#xff1a;\u5bf9\u6743\u91cd\u5e73\u65b9\u6c42\u548c&#xff08;<img decoding=\"async\" alt=\"\\\\sum w_{i}^{2}\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207080517-6986f23dcd5d2.png\" \/>&#xff09;&#xff0c;\u4f1a\u8ba9\u6743\u91cd\u666e\u904d\u53d8\u5c0f&#xff0c;\u4f7f\u6a21\u578b\u66f4\u7a33\u5065\u3002<\/li>\n<\/ul>\n<p>\u5f62\u8c61\u6765\u8bf4&#xff0c;\u6b63\u5219\u5316\u5c31\u50cf \u201c\u7ea6\u675f\u6a21\u578b\u4e0d\u8981\u592a\u8f83\u771f\u201d&#xff0c;\u907f\u514d\u5b83\u6b7b\u8bb0\u786c\u80cc\u8bad\u7ec3\u6570\u636e&#xff0c;\u800c\u662f\u5b66\u4e60\u901a\u7528\u89c4\u5f8b\u3002<\/p>\n<h4>3. 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