{"id":88287,"date":"2026-07-31T21:00:58","date_gmt":"2026-07-31T13:00:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/88287.html"},"modified":"2026-07-31T21:00:58","modified_gmt":"2026-07-31T13:00:58","slug":"%e9%80%9f%e9%80%9a%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0-02-%e7%ba%bf%e6%80%a7%e5%9b%9e%e5%bd%92","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/88287.html","title":{"rendered":"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52"},"content":{"rendered":"<p style=\"margin-left:.0001pt;text-align:justify\">\u524d\u8a00<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e0a\u4e00\u8282\u6211\u4eec\u5b66\u4e86 KNN \u5206\u7c7b\u7b97\u6cd5&#xff08;\u7528\u6765\u201c\u5206\u7c7b\u3001\u5224\u65ad\u7c7b\u522b\u201d&#xff09;\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u8fd9\u4e00\u8282\u6211\u4eec\u5b66\u673a\u5668\u5b66\u4e60 \u6700\u57fa\u7840\u3001\u6700\u91cd\u8981\u7684\u56de\u5f52\u7b97\u6cd5\u2014\u2014\u7ebf\u6027\u56de\u5f52\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5982\u679c\u8bf4 KNN \u662f\u731c\u7c7b\u522b&#xff0c;\u90a3\u7ebf\u6027\u56de\u5f52\u5c31\u662f \u731c\u6570\u5b57\u3002<\/p>\n<h3 style=\"margin-left:0.0001pt;text-align:left\">1. \u4ec0\u4e48\u662f\u7ebf\u6027\u56de\u5f52&#xff1f;<\/h3>\n<p style=\"margin-left:.0001pt;text-align:left\">\u751f\u6d3b\u4e2d\u5f88\u591a\u95ee\u9898\u90fd\u662f \u9884\u6d4b\u6570\u503c&#xff1a;<\/p>\n<ul>\n<li style=\"text-align:left\">\u6839\u636e\u623f\u5b50\u9762\u79ef\u9884\u6d4b\u623f\u4ef7<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">\u6839\u636e\u5b66\u4e60\u65f6\u957f\u9884\u6d4b \u8003\u8bd5\u5206\u6570<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">\u6839\u636e\u5929\u6570\u9884\u6d4b \u9500\u91cf\u3001\u6e29\u5ea6\u3001\u8d70\u52bf<\/li>\n<\/ul>\n<p style=\"margin-left:.0001pt;text-align:left\">\u8fd9\u4e9b\u8fde\u7eed\u7684\u6570\u5b57\u9884\u6d4b&#xff0c;\u5168\u90e8\u5c5e\u4e8e&#xff1a;\u56de\u5f52\u4efb\u52a1\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7ebf\u6027\u56de\u5f52\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4ece\u6570\u5b66\u7edf\u8ba1\u7684\u89d2\u5ea6\u6765\u770b&#xff0c;\u5f53\u6211\u4eec\u628a\u53ea\u6709\u4e00\u4e2a\u7279\u5f81\u7684\u6570\u636e\u70b9\u753b\u5728\u56fe\u4e0a&#xff0c;\u901a\u8fc7\u89c2\u5bdf\u53ef\u4ee5\u53d1\u73b0&#xff0c;\u53ef\u4ee5\u627e\u5230\u4e00\u6761\u6700\u8d34\u5408\u6240\u6709\u6570\u636e\u70b9\u7684\u76f4\u7ebf\u3002\u4e4b\u540e\u5bf9\u4e8e\u65b0\u7684\u6570\u636e&#xff0c;\u76f4\u63a5\u7528\u8fd9\u6761\u76f4\u7ebf\u6765\u9884\u6d4b\u7ed3\u679c\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"683\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130055-6a6c9c87e2363.png\" width=\"698\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:center\"><span style=\"color:#8f959e\">\u7ebf\u6027\u56de\u5f52&#xff1a;\u627e\u5230\u4e00\u6761\u6700\u8d34\u5408\u6240\u6709\u6570\u636e\u7684\u76f4\u7ebf<\/span><\/p>\n<table border=\"1\" cellspacing=\"0\" style=\"margin-left:-0.6000pt\">\n<tbody>\n<tr>\n<td style=\"background-color:#fefff0;width:414.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u5c0f\u77e5\u8bc6&#xff1a;\u76f8\u5173\u5173\u7cfb \u2260 \u56e0\u679c\u5173\u7cfb<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7ebf\u6027\u56de\u5f52\u7814\u7a76\u7684\u662f\u53d8\u91cf\u4e4b\u95f4\u7684\u76f8\u5173\u5173\u7cfb\u2014\u2014\u4e24\u4e2a\u53d8\u91cf\u4e00\u8d77\u53d8\u5316\u7684\u8d8b\u52bf\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e3e\u4e2a\u4f8b\u5b50&#xff1a;\u51b0\u6dc7\u6dcb\u9500\u91cf\u548c\u6eba\u6c34\u4eba\u6570&#xff0c;\u6570\u636e\u4e0a\u770b\u8d77\u6765\u6b63\u76f8\u5173&#xff0c;\u4f46\u4e0d\u662f\u56e0\u679c\u5173\u7cfb&#xff08;\u4e0d\u662f\u51b0\u6dc7\u6dcb\u5bfc\u81f4\u6eba\u6c34&#xff09;&#xff0c;\u800c\u662f\u56e0\u4e3a\u5929\u70ed\u4e24\u8005\u90fd\u589e\u52a0\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6240\u4ee5\u7528\u7ebf\u6027\u56de\u5f52\u65f6&#xff0c;\u8981\u7ed3\u5408\u4e1a\u52a1\u5e38\u8bc6\u5224\u65ad&#xff0c;\u4e0d\u8981\u770b\u5230\u76f8\u5173\u5c31\u8ba4\u4e3a\u6709\u56e0\u679c\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"margin-left:0.0001pt;text-align:left\">2. \u6570\u5b66\u516c\u5f0f<\/h3>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6570\u5b66\u539f\u7406\u4e0d\u505a\u8fc7\u591a\u7684\u89e3\u91ca&#xff0c;\u7406\u89e3\u4e00\u4e0b\u6574\u4f53\u7684\u6d41\u7a0b\u5c31\u597d&#xff0c;\u4ee3\u7801\u4f1a\u5e2e\u6211\u4eec\u8fd0\u7b97&#xff0c;\u4e0d\u61c2\u7684\u6570\u5b66\u90e8\u5206\u53ef\u4ee5\u76f4\u63a5\u7565\u8fc7\u770b\u4ee3\u7801\u90e8\u5206<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e00\u5143\u7ebf\u6027\u516c\u5f0f&#xff1a;<\/p>\n<p style=\"margin-left:0.0001pt;text-align:center\"><img decoding=\"async\" alt=\"y=kx+b\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130056-6a6c9c885b442.png\" \/><\/p>\n<ul>\n<li style=\"text-align:left\">x&#xff1a;\u8f93\u5165\u7279\u5f81&#xff08;\u6bd4\u5982\u623f\u5b50\u9762\u79ef&#xff09;<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">y&#xff1a;\u9884\u6d4b\u7ed3\u679c&#xff08;\u623f\u4ef7&#xff09;<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">k&#xff1a;\u659c\u7387&#xff08;\u6743\u91cd&#xff09;<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">b&#xff1a;\u622a\u8ddd&#xff08;\u504f\u7f6e&#xff09;<\/li>\n<\/ul>\n<p style=\"margin-left:.0001pt;text-align:left\">\u673a\u5668\u8bad\u7ec3\u7684\u8fc7\u7a0b&#xff0c;\u5c31\u662f \u81ea\u52a8\u7b97\u51fa\u6700\u5408\u9002\u7684 k \u548c b&#xff0c;\u8ba9\u8fd9\u6761\u7ebf\u6700\u8d34\u5408\u6570\u636e\u3002<\/p>\n<table border=\"1\" cellspacing=\"0\" style=\"margin-left:-0.6000pt\">\n<tbody>\n<tr>\n<td style=\"background-color:#f0f4ff;width:414.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u62d3\u5c55\u77e5\u8bc6&#xff1a;\u8bef\u5dee\u9879 &amp; \u591a\u5143\u7ebf\u6027\u56de\u5f52<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">1. \u8bef\u5dee\u9879 \u03b5<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5b8c\u6574\u516c\u5f0f\u5176\u5b9e\u662f<img decoding=\"async\" alt=\"y=kx+b+\\\\varepsilon\" class=\"mathcode\" src=\"https:\/\/latex.csdn.net\/eq?y%3Dkx&amp;plus;b&amp;plus;%5Cvarepsilon\" \/>&#xff0c;\u03b5\u4ee3\u8868\u9664x\u5916\u5176\u4ed6\u6240\u6709\u968f\u673a\u56e0\u7d20\u7684\u5f71\u54cd\u3002\u73b0\u5b9e\u4e16\u754c\u592a\u590d\u6742&#xff0c;\u4e0d\u53ef\u80fd\u628a\u6240\u6709\u56e0\u7d20\u90fd\u653e\u8fdb\u6a21\u578b&#xff0c;\u6240\u4ee5\u8bef\u5dee\u6c38\u8fdc\u5b58\u5728\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">2. \u591a\u5143\u7ebf\u6027\u56de\u5f52<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5b9e\u9645\u9879\u76ee\u5f80\u5f80\u6709\u591a\u4e2a\u7279\u5f81&#xff0c;\u6bd4\u5982\u9884\u6d4b\u623f\u4ef7\u8981\u770b\u9762\u79ef\u3001\u623f\u95f4\u6570\u3001\u697c\u9f84\u3002\u516c\u5f0f\u53d8\u6210&#xff1a;<img decoding=\"async\" alt=\"y=k1x1+k2x2+...+b\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130056-6a6c9c8873636.png\" \/>&#xff0c;\u6bcf\u4e2a\u7279\u5f81\u5bf9\u5e94\u4e00\u4e2a\u6743\u91cd\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4ee3\u7801\u4e0d\u7528\u6539&#xff0c;\u4f20\u591a\u5217\u7279\u5f81\u8fdb\u53bb\u5c31\u884c&#xff0c;sklearn\u81ea\u52a8\u5904\u7406\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin-left:.0001pt;text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1325\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130056-6a6c9c888220b.png\" width=\"966\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:center\"><span style=\"color:#8f959e\">\u4e8c\u5143\u7ebf\u6027\u56de\u5f52&#xff1a;\u627e\u5230\u4e00\u4e2a\u6700\u8d34\u5408\u6570\u636e\u7684\u5e73\u9762<\/span><\/p>\n<h3 style=\"margin-left:0.0001pt;text-align:left\">3. \u673a\u5668\u600e\u4e48\u201c\u5b66\u4f1a\u201d\u8fd9\u6761\u7ebf\u6216\u8005\u5e73\u9762&#xff1f;<\/h3>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6211\u4eec\u968f\u4fbf\u753b\u4e00\u6761\u7ebf\u80af\u5b9a\u4e0d\u51c6\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u673a\u5668\u7684\u76ee\u6807&#xff1a;\u8ba9\u6240\u6709\u6837\u672c\u7684\u9884\u6d4b\u503c\u548c\u771f\u5b9e\u503c\u5dee\u8ddd\u6700\u5c0f\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u8fd9\u4e2a\u5dee\u8ddd&#xff0c;\u53eb\u505a \u8bef\u5dee&#xff08;\u635f\u5931&#xff09;\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7ebf\u6027\u56de\u5f52\u9ed8\u8ba4\u4f7f\u7528 \u6700\u5c0f\u4e8c\u4e58\u6cd5 \u8ba1\u7b97\u6700\u4f18\u89e3&#xff1a;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b80\u5355\u7406\u89e3&#xff1a;\u8ba9\u6240\u6709\u70b9\u5230\u76f4\u7ebf\u7684\u603b\u8bef\u5dee\u6700\u5c0f\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6211\u4eec\u4e0d\u7528\u624b\u63a8\u516c\u5f0f&#xff0c;\u4ee3\u7801\u4f1a\u81ea\u52a8\u5e2e\u6211\u4eec\u7b97\u51fa\u6700\u4f18 k\u3001b\u3002<\/p>\n<h3 style=\"margin-left:0.0001pt;text-align:left\">4. \u7ebf\u6027\u56de\u5f52\u80fd\u5e72\u4ec0\u4e48&#xff1f;<\/h3>\n<p style=\"margin-left:.0001pt;text-align:left\">4.1 \u89e3\u51b3\u56de\u5f52\u95ee\u9898&#xff08;\u9884\u6d4b\u6570\u5b57&#xff09;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u623f\u4ef7\u3001\u80a1\u7968\u3001\u6e29\u5ea6\u3001\u9500\u91cf\u3001\u85aa\u8d44\u9884\u6d4b\u5168\u90e8\u9002\u7528\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">4.2 \u5206\u6790\u7279\u5f81\u5f71\u54cd\u5927\u5c0f<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6743\u91cd k \u8d8a\u5927&#xff0c;\u4ee3\u8868\u8fd9\u4e2a\u7279\u5f81\u5bf9\u7ed3\u679c\u5f71\u54cd\u8d8a\u5927&#xff0c;\u975e\u5e38\u9002\u5408\u505a\u6570\u636e\u5206\u6790\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">4.3 \u600e\u4e48\u5224\u65ad\u53d8\u91cf&#034;\u7ebf\u4e0d\u7ebf\u6027&#034;&#xff1f;\u2014\u2014\u76f8\u5173\u7cfb\u6570<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5728\u7528\u7ebf\u6027\u56de\u5f52\u4e4b\u524d&#xff0c;\u6211\u4eec\u901a\u5e38\u5148\u770b\u770b\u4e24\u4e2a\u53d8\u91cf\u5230\u5e95\u6709\u6ca1\u6709\u7ebf\u6027\u5173\u7cfb\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6700\u5e38\u7528\u7684\u6307\u6807&#xff1a;\u76ae\u5c14\u900a\u76f8\u5173\u7cfb\u6570&#xff08;r&#xff09;<\/p>\n<ul>\n<li style=\"text-align:left\">r \u63a5\u8fd1 1&#xff1a;\u5f3a\u6b63\u76f8\u5173&#xff08;x\u8d8a\u5927&#xff0c;y\u8d8a\u5927&#xff09;<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">r \u63a5\u8fd1 -1&#xff1a;\u5f3a\u8d1f\u76f8\u5173&#xff08;x\u8d8a\u5927&#xff0c;y\u8d8a\u5c0f&#xff09;<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">r \u63a5\u8fd1 0&#xff1a;\u51e0\u4e4e\u6ca1\u7ebf\u6027\u5173\u7cfb<\/li>\n<\/ul>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7ecf\u9a8c\u5224\u65ad\u6807\u51c6&#xff1a;<\/p>\n<table border=\"1\" cellspacing=\"0\" style=\"margin-left:-0.6000pt\">\n<tbody>\n<tr>\n<td style=\"vertical-align:top;width:132.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u76f8\u5173\u7cfb\u6570\u7edd\u5bf9\u503c<\/p>\n<\/td>\n<td style=\"vertical-align:top;width:131.2500pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u76f8\u5173\u7a0b\u5ea6<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:top;width:132.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u2265 0.8<\/p>\n<\/td>\n<td style=\"vertical-align:top;width:131.2500pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u9ad8\u5ea6\u76f8\u5173<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:top;width:132.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">0.5 ~ 0.8<\/p>\n<\/td>\n<td style=\"vertical-align:top;width:131.2500pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e2d\u5ea6\u76f8\u5173<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:top;width:132.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">0.3 ~ 0.5<\/p>\n<\/td>\n<td style=\"vertical-align:top;width:131.2500pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u4f4e\u5ea6\u76f8\u5173<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:top;width:132.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">&lt; 0.3<\/p>\n<\/td>\n<td style=\"vertical-align:top;width:131.2500pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u57fa\u672c\u4e0d\u76f8\u5173<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5982\u679c\u4e24\u4e2a\u53d8\u91cf\u76f8\u5173\u7cfb\u6570\u5f88\u4f4e&#xff0c;\u7528\u7ebf\u6027\u56de\u5f52\u6548\u679c\u5c31\u4e0d\u4f1a\u597d&#xff0c;\u8fd9\u65f6\u8981\u8003\u8651\u6362\u6a21\u578b\u6216\u505a\u7279\u5f81\u5de5\u7a0b\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u76f8\u5173\u7cfb\u6570\u600e\u4e48\u7b97&#xff1f;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u516c\u5f0f\u4e0d\u7528\u6b7b\u8bb0&#xff0c;\u7406\u89e3\u601d\u60f3\u5c31\u884c&#xff1a;<img decoding=\"async\" alt=\"r = \\\\frac{\\\\sum (x-\\\\bar{x})(y-\\\\bar{y})}{\\\\sqrt{\\\\sum (x-\\\\bar{x})^2 \\\\cdot \\\\sum (y-\\\\bar{y})^2}}\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130057-6a6c9c890910a.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5927\u767d\u8bdd\u62c6\u89e3&#xff1a;<\/p>\n<ul>\n<li style=\"text-align:left\">\u5206\u5b50&#xff1a;x\u548cy\u7684&#034;\u53d8\u5316\u8d8b\u52bf\u662f\u5426\u4e00\u81f4&#034;\u2014\u2014x\u504f\u5927\u65f6y\u4e5f\u504f\u5927&#xff0c;\u4e58\u8d77\u6765\u5c31\u662f\u6b63\u7684&#xff1b;x\u5927y\u5c0f&#xff0c;\u4e58\u8d77\u6765\u5c31\u662f\u8d1f\u7684<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">\u5206\u6bcd&#xff1a;\u628ax\u548cy\u5404\u81ea\u7684\u6ce2\u52a8\u5e45\u5ea6\u505a\u6807\u51c6\u5316&#xff0c;\u6d88\u9664\u91cf\u7eb2\u5f71\u54cd<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align:left\">\u6700\u7ec8\u7ed3\u679c\u88ab\u538b\u7f29\u5728 [-1, 1] \u4e4b\u95f4<\/li>\n<\/ul>\n<table border=\"1\" cellspacing=\"0\" style=\"margin-left:-0.6000pt\">\n<tbody>\n<tr>\n<td style=\"background-color:#f0fbef;width:414.0000pt\">\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e3e\u4e2a\u6781\u7b80\u4f8b\u5b50&#xff08;\u624b\u7b97\u611f\u53d7\u4e00\u4e0b&#xff09;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">x &#061; [1, 2, 3]&#xff0c;y &#061; [2, 4, 6]<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">x\u7684\u5e73\u5747\u503c&#061;2&#xff0c;y\u7684\u5e73\u5747\u503c&#061;4<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5206\u5b50&#xff1a;(1-2)(2-4) &#043; (2-2)(4-4) &#043; (3-2)(6-4) &#061; 2 &#043; 0 &#043; 2 &#061; 4<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5206\u6bcd&#xff1a;\u221a[(1&#043;0&#043;1) \u00d7 (4&#043;0&#043;4)] &#061; \u221a[2\u00d78] &#061; \u221a16 &#061; 4<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">r &#061; 4\/4 &#061; 1 \u2192 \u5b8c\u7f8e\u6b63\u76f8\u5173&#xff01;<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5b9e\u9645\u5de5\u4f5c\u4e0d\u7528\u624b\u7b97&#xff0c;\u4e00\u884c\u4ee3\u7801\u641e\u5b9a&#xff1a;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5982\u679c\u4e24\u4e2a\u53d8\u91cf\u76f8\u5173\u7cfb\u6570\u5f88\u4f4e&#xff0c;\u7528\u7ebf\u6027\u56de\u5f52\u6548\u679c\u5c31\u4e0d\u4f1a\u597d&#xff0c;\u8fd9\u65f6\u8981\u8003\u8651\u6362\u6a21\u578b\u6216\u505a\u7279\u5f81\u5de5\u7a0b\u3002<\/p>\n<h3 style=\"margin-left:0.0001pt;text-align:left\">5. \u5b9e\u6218\u4ee3\u7801&#xff1a;\u591a\u5143\u7ebf\u6027\u56de\u5f52\u5b8c\u6574\u6848\u4f8b&#xff08;\u53ef\u76f4\u63a5\u8fd0\u884c&#xff09;<\/h3>\n<p style=\"margin-left:.0001pt;text-align:left\">\u573a\u666f&#xff1a;\u6839\u636e\u4f53\u91cd\u3001\u5e74\u9f84&#xff0c;\u9884\u6d4b\u4eba\u4f53\u6536\u7f29\u8840\u538b&#xff08;\u7ecf\u5178\u591a\u5143\u7ebf\u6027\u56de\u5f52\u5b9e\u6218&#xff09;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4ee3\u7801\u5206\u6bb5\u8bb2\u89e3&#xff1a;\u8bfb\u53d6\u672c\u5730\u6570\u636e\u3001\u7279\u5f81\u6807\u7b7e\u5206\u79bb\u3001\u6a21\u578b\u8bad\u7ec3\u3001\u53c2\u6570\u67e5\u770b\u3001\u9884\u6d4b\u8bc4\u4f30<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">5.1 \u4ee3\u7801\u5206\u6bb5\u7cbe\u8bb2<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6570\u636e\u5728\u672c\u6587\u7684\u5f00\u5934\u53ef\u4ee5\u4e0b\u8f7d\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6570\u636e\u6837\u4f8b&#xff1a;<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"555\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130057-6a6c9c89164c0.png\" width=\"688\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:center\"><span style=\"color:#8f959e\">\u591a\u5143\u7ebf\u6027\u56de\u5f52\u6570\u636e&#xff1a;\u4f53\u91cd\u3001\u5e74\u9f84\u3001\u8840\u538b\u6536\u7f29<\/span><\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4e0b\u9762\u5c06\u4ee3\u7801\u62c6\u5206\u4e3a&#xff1a;\u5bfc\u5e93 \u2192 \u8bfb\u53d6\u6570\u636e \u2192 \u5206\u79bb\u7279\u5f81\u6807\u7b7e \u2192 \u6a21\u578b\u8bad\u7ec3 \u2192 \u6a21\u578b\u8bc4\u4f30 \u2192 \u65b0\u6570\u636e\u9884\u6d4b \u516d\u4e2a\u6b65\u9aa4&#xff0c;\u9010\u5757\u8bb2\u89e3&#xff1a;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u4e00\u6b65&#xff1a;\u5bfc\u5165\u6240\u9700\u5de5\u5177\u5e93<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">pandas \u7528\u4e8e\u8bfb\u53d6\u3001\u5904\u7406\u8868\u683c\u6570\u636e&#xff1b;LinearRegression \u662f sklearn \u5185\u7f6e\u7684\u7ebf\u6027\u56de\u5f52\u6a21\u578b&#xff0c;\u76f4\u63a5\u62ff\u6765\u7528&#xff0c;\u65e0\u9700\u81ea\u5df1\u5199\u516c\u5f0f\u3002<\/p>\n<p>import pandas as pd<br \/>\nfrom sklearn.linear_model import LinearRegression<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u4e8c\u6b65&#xff1a;\u8bfb\u53d6\u672c\u5730CSV\u6570\u636e\u96c6<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u8bfb\u53d6\u7535\u8111\u672c\u5730\u7684\u591a\u5143\u56de\u5f52\u6570\u636e\u6587\u4ef6&#xff0c;\u8bbe\u7f6e\u7f16\u7801\u4e3a gbk&#xff0c;\u907f\u514d\u4e2d\u6587\u5217\u540d\u4e71\u7801\u3002<\/p>\n<p># \u8bfb\u53d6\u672c\u5730\u591a\u5143\u7ebf\u6027\u56de\u5f52\u6570\u636e\u96c6<br \/>\ndata &#061; pd.read_csv(r&#034;D:\\\\pythoncode2\\\\bigdata_ai40\\\\\u673a\u5668\u5b66\u4e60\\\\data\\\\\u591a\u5143\u7ebf\u6027\u56de\u5f52.csv&#034;, encoding&#061;&#039;gbk&#039;)<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u4e09\u6b65&#xff1a;\u5206\u79bb\u7279\u5f81\u4e0e\u6807\u7b7e&#xff08;\u6838\u5fc3\u6b65\u9aa4&#xff09;<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u673a\u5668\u5b66\u4e60\u8bad\u7ec3\u5fc5\u987b\u533a\u5206&#xff1a;\u7279\u5f81X&#xff08;\u7528\u6765\u9884\u6d4b\u7684\u4f9d\u636e&#xff09; \u548c \u6807\u7b7eY&#xff08;\u9700\u8981\u9884\u6d4b\u7684\u7ed3\u679c&#xff09;\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u672c\u6b21\u7528\u4e24\u4e2a\u7279\u5f81&#xff1a;\u4f53\u91cd\u3001\u5e74\u9f84&#xff0c;\u9884\u6d4b\u6807\u7b7e&#xff1a;\u8840\u538b\u6536\u7f29&#xff0c;\u5c5e\u4e8e\u6807\u51c6\u591a\u5143\u7ebf\u6027\u56de\u5f52&#xff08;\u591a\u7279\u5f81\u9884\u6d4b\u5355\u6570\u503c&#xff09;\u3002<\/p>\n<p># \u7279\u5f81&#xff1a;\u4f53\u91cd\u3001\u5e74\u9f84&#xff08;\u591a\u4e2a\u7279\u5f81&#061;\u591a\u5143\u56de\u5f52&#xff09;<br \/>\nx &#061; data[[&#039;\u4f53\u91cd&#039;, &#039;\u5e74\u9f84&#039;]]<br \/>\n# \u6807\u7b7e&#xff1a;\u6700\u7ec8\u8981\u9884\u6d4b\u7684\u8840\u538b\u503c<br \/>\ny &#061; data[&#039;\u8840\u538b\u6536\u7f29&#039;]<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u56db\u6b65&#xff1a;\u521b\u5efa\u6a21\u578b\u5e76\u8bad\u7ec3\u6570\u636e<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u5b9e\u4f8b\u5316\u7ebf\u6027\u56de\u5f52\u6a21\u578b&#xff0c;\u901a\u8fc7 fit() \u65b9\u6cd5\u8ba9\u6a21\u578b\u5b66\u4e60\u6570\u636e\u89c4\u5f8b&#xff0c;\u81ea\u52a8\u8ba1\u7b97\u51fa\u6700\u4f18\u6743\u91cdk\u548c\u622a\u8dddb\u3002<\/p>\n<p># \u521d\u59cb\u5316\u7ebf\u6027\u56de\u5f52\u6a21\u578b<br \/>\nlr_model &#061; LinearRegression()<br \/>\n# \u4f20\u5165\u7279\u5f81\u3001\u6807\u7b7e&#xff0c;\u5b8c\u6210\u6a21\u578b\u8bad\u7ec3<br \/>\nlr_model.fit(x, y)<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u4e94\u6b65&#xff1a;\u6a21\u578b\u81ea\u6d4b\u8bc4\u4f30<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u4f7f\u7528 score() \u65b9\u6cd5\u8ba1\u7b97 R\u00b2 \u5f97\u5206&#xff0c;\u7528\u6765\u5224\u65ad\u6a21\u578b\u62df\u5408\u6548\u679c&#xff0c;\u5206\u6570\u8d8a\u63a5\u8fd11&#xff0c;\u6a21\u578b\u9884\u6d4b\u8d8a\u51c6\u786e\u3002<\/p>\n<p># \u81ea\u6d4b\u6a21\u578b\u51c6\u786e\u7387&#xff08;R\u00b2\u5f97\u5206&#xff09;<br \/>\nscore &#061; lr_model.score(x, y)<br \/>\nprint(f&#034;\u6a21\u578bR\u00b2\u62df\u5408\u5f97\u5206&#xff1a;{score:.3f}&#034;)<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u7b2c\u516d\u6b65&#xff1a;\u65b0\u589e&#xff01;\u6a21\u578b\u53c2\u6570\u67e5\u770b &#043; \u65b0\u6570\u636e\u9884\u6d4b<\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u8bad\u7ec3\u5b8c\u6210\u540e&#xff0c;\u53ef\u67e5\u770b\u6a21\u578b\u5b66\u5230\u7684\u89c4\u5f8b&#xff0c;\u540c\u65f6\u5bf9\u672a\u77e5\u65b0\u6570\u636e\u505a\u9884\u6d4b&#xff0c;\u771f\u6b63\u5b9e\u73b0AI\u9884\u6d4b\u6548\u679c\u3002<\/p>\n<p># \u67e5\u770b\u5404\u7279\u5f81\u6743\u91cd&#xff08;\u4f53\u91cd\u3001\u5e74\u9f84\u5bf9\u8840\u538b\u7684\u5f71\u54cd\u7a0b\u5ea6&#xff09;<br \/>\nprint(&#034;\u7279\u5f81\u6743\u91cd&#xff1a;&#034;, lr_model.coef_)<br \/>\n# \u67e5\u770b\u6a21\u578b\u622a\u8ddd<br \/>\nprint(&#034;\u6a21\u578b\u622a\u8ddd&#xff1a;&#034;, lr_model.intercept_)<br \/>\n\u9884\u6d4b\u65b0\u6570\u636e&#xff1a;\u4f53\u91cd80kg\u3001\u5e74\u9f8435\u5c81\u7684\u8840\u538b\u503c<br \/>\nnew_pred &#061; lr_model.predict([[80, 35]])<br \/>\nprint(f&#034;\u4f53\u91cd80kg\/35\u5c81 \u9884\u6d4b\u8840\u538b&#xff1a;{new_pred[0]:.1f}&#034;)<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u7ebf\u6027\u56de\u5f52\u662f\u673a\u5668\u5b66\u4e60\u91cc\u6700\u57fa\u7840\u3001\u6700\u5b9e\u7528\u7684\u56de\u5f52\u7b97\u6cd5&#xff0c;\u6838\u5fc3\u5c31\u662f\u627e\u5230\u4e00\u6761\u6700\u8d34\u5408\u6240\u6709\u6570\u636e\u70b9\u7684\u76f4\u7ebf&#xff08;\u6216\u5e73\u9762&#xff09;&#xff0c;\u7528\u6765\u9884\u6d4b\u8fde\u7eed\u6570\u503c\u3002<\/p>\n<p>\u6574\u4e2a\u8fc7\u7a0b\u4e0d\u9700\u8981\u624b\u63a8\u516c\u5f0f&#xff0c;sklearn \u7684 LinearRegression \u4e00\u884c\u4ee3\u7801\u5c31\u80fd\u5b8c\u6210\u8bad\u7ec3\u548c\u9884\u6d4b\u3002\u53ea\u8981\u7406\u89e3\u7279\u5f81\u3001\u6807\u7b7e\u3001\u6743\u91cd\u3001\u622a\u8ddd\u8fd9\u51e0\u4e2a\u6982\u5ff5&#xff0c;\u518d\u7ed3\u5408\u76f8\u5173\u7cfb\u6570\u5224\u65ad\u53d8\u91cf\u7ebf\u6027\u5173\u7cfb&#xff0c;\u5c31\u80fd\u4e0a\u624b\u5b9e\u6218\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00\u4e0a\u4e00\u8282\u6211\u4eec\u5b66\u4e86 KNN \u5206\u7c7b\u7b97\u6cd5&#xff08;\u7528\u6765\u201c\u5206\u7c7b\u3001\u5224\u65ad\u7c7b\u522b\u201d&#xff09;\u3002\u8fd9\u4e00\u8282\u6211\u4eec\u5b66\u673a\u5668\u5b66\u4e60 \u6700\u57fa\u7840\u3001\u6700\u91cd\u8981\u7684\u56de\u5f52\u7b97\u6cd5\u2014\u2014\u7ebf\u6027\u56de\u5f52\u3002\u5982\u679c\u8bf4 KNN \u662f\u731c\u7c7b\u522b&#xff0c;\u90a3\u7ebf\u6027\u56de\u5f52\u5c31\u662f \u731c\u6570\u5b57\u30021. \u4ec0\u4e48\u662f\u7ebf\u6027\u56de\u5f52&#xff1f;\u751f\u6d3b\u4e2d\u5f88\u591a\u95ee\u9898\u90fd\u662f \u9884\u6d4b\u6570\u503c&#xff1a;\u6839\u636e\u623f\u5b50\u9762\u79ef\u9884\u6d4b\u623f\u4ef7\u6839\u636e\u5b66\u4e60\u65f6\u957f\u9884\u6d4b \u8003\u8bd5\u5206\u6570\u6839\u636e\u5929\u6570\u9884\u6d4b \u9500\u91cf\u3001\u6e29\u5ea6\u3001\u8d70\u52bf\u8fd9\u4e9b\u8fde\u7eed\u7684\u6570\u5b57\u9884\u6d4b&#xff0c;\u5168\u90e8\u5c5e\u4e8e&#xff1a;\u56de\u5f52\u4efb\u52a1\u3002\u7ebf\u6027\u56de\u5f52\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;\u4ece\u6570\u5b66<\/p>\n","protected":false},"author":2,"featured_media":88280,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190,207],"topic":[],"class_list":["post-88287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-python","tag-190","tag-207"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/88287.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u524d\u8a00\u4e0a\u4e00\u8282\u6211\u4eec\u5b66\u4e86 KNN \u5206\u7c7b\u7b97\u6cd5&#xff08;\u7528\u6765\u201c\u5206\u7c7b\u3001\u5224\u65ad\u7c7b\u522b\u201d&#xff09;\u3002\u8fd9\u4e00\u8282\u6211\u4eec\u5b66\u673a\u5668\u5b66\u4e60 \u6700\u57fa\u7840\u3001\u6700\u91cd\u8981\u7684\u56de\u5f52\u7b97\u6cd5\u2014\u2014\u7ebf\u6027\u56de\u5f52\u3002\u5982\u679c\u8bf4 KNN \u662f\u731c\u7c7b\u522b&#xff0c;\u90a3\u7ebf\u6027\u56de\u5f52\u5c31\u662f \u731c\u6570\u5b57\u30021. \u4ec0\u4e48\u662f\u7ebf\u6027\u56de\u5f52&#xff1f;\u751f\u6d3b\u4e2d\u5f88\u591a\u95ee\u9898\u90fd\u662f \u9884\u6d4b\u6570\u503c&#xff1a;\u6839\u636e\u623f\u5b50\u9762\u79ef\u9884\u6d4b\u623f\u4ef7\u6839\u636e\u5b66\u4e60\u65f6\u957f\u9884\u6d4b \u8003\u8bd5\u5206\u6570\u6839\u636e\u5929\u6570\u9884\u6d4b \u9500\u91cf\u3001\u6e29\u5ea6\u3001\u8d70\u52bf\u8fd9\u4e9b\u8fde\u7eed\u7684\u6570\u5b57\u9884\u6d4b&#xff0c;\u5168\u90e8\u5c5e\u4e8e&#xff1a;\u56de\u5f52\u4efb\u52a1\u3002\u7ebf\u6027\u56de\u5f52\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;\u4ece\u6570\u5b66\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/88287.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-31T13:00:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130055-6a6c9c87e2363.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/88287.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/88287.html\",\"name\":\"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-07-31T13:00:58+00:00\",\"dateModified\":\"2026-07-31T13:00:58+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/88287.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/88287.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/88287.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/88287.html","og_locale":"zh_CN","og_type":"article","og_title":"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u524d\u8a00\u4e0a\u4e00\u8282\u6211\u4eec\u5b66\u4e86 KNN \u5206\u7c7b\u7b97\u6cd5&#xff08;\u7528\u6765\u201c\u5206\u7c7b\u3001\u5224\u65ad\u7c7b\u522b\u201d&#xff09;\u3002\u8fd9\u4e00\u8282\u6211\u4eec\u5b66\u673a\u5668\u5b66\u4e60 \u6700\u57fa\u7840\u3001\u6700\u91cd\u8981\u7684\u56de\u5f52\u7b97\u6cd5\u2014\u2014\u7ebf\u6027\u56de\u5f52\u3002\u5982\u679c\u8bf4 KNN \u662f\u731c\u7c7b\u522b&#xff0c;\u90a3\u7ebf\u6027\u56de\u5f52\u5c31\u662f \u731c\u6570\u5b57\u30021. \u4ec0\u4e48\u662f\u7ebf\u6027\u56de\u5f52&#xff1f;\u751f\u6d3b\u4e2d\u5f88\u591a\u95ee\u9898\u90fd\u662f \u9884\u6d4b\u6570\u503c&#xff1a;\u6839\u636e\u623f\u5b50\u9762\u79ef\u9884\u6d4b\u623f\u4ef7\u6839\u636e\u5b66\u4e60\u65f6\u957f\u9884\u6d4b \u8003\u8bd5\u5206\u6570\u6839\u636e\u5929\u6570\u9884\u6d4b \u9500\u91cf\u3001\u6e29\u5ea6\u3001\u8d70\u52bf\u8fd9\u4e9b\u8fde\u7eed\u7684\u6570\u5b57\u9884\u6d4b&#xff0c;\u5168\u90e8\u5c5e\u4e8e&#xff1a;\u56de\u5f52\u4efb\u52a1\u3002\u7ebf\u6027\u56de\u5f52\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;\u4ece\u6570\u5b66","og_url":"https:\/\/www.wsisp.com\/helps\/88287.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-07-31T13:00:58+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260731130055-6a6c9c87e2363.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/88287.html","url":"https:\/\/www.wsisp.com\/helps\/88287.html","name":"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-07-31T13:00:58+00:00","dateModified":"2026-07-31T13:00:58+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/88287.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/88287.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/88287.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u901f\u901a\u673a\u5668\u5b66\u4e60 02 | \u7ebf\u6027\u56de\u5f52"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/88287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=88287"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/88287\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/88280"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=88287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=88287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=88287"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=88287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}