{"id":2538,"date":"2025-05-21T00:00:13","date_gmt":"2025-05-20T16:00:13","guid":{"rendered":"https:\/\/www.wunen.com\/index.php\/2025\/05\/21\/%e3%80%90machine-learning-%e7%b3%bb%e5%88%97%e3%80%91%e4%b8%80%e6%96%87%e5%b8%a6%e4%bd%a0%e8%af%a6%e8%a7%a3%e4%bb%80%e4%b9%88%e6%98%af%e6%97%a0%e7%9b%91%e7%9d%a3%e5%ad%a6%e4%b9%a0unsupervised-learnin\/"},"modified":"2025-05-21T00:00:13","modified_gmt":"2025-05-20T16:00:13","slug":"%e3%80%90machine-learning-%e7%b3%bb%e5%88%97%e3%80%91%e4%b8%80%e6%96%87%e5%b8%a6%e4%bd%a0%e8%af%a6%e8%a7%a3%e4%bb%80%e4%b9%88%e6%98%af%e6%97%a0%e7%9b%91%e7%9d%a3%e5%ad%a6%e4%b9%a0unsupervised-learnin","status":"publish","type":"post","link":"http:\/\/www.wunen.com\/index.php\/2025\/05\/21\/%e3%80%90machine-learning-%e7%b3%bb%e5%88%97%e3%80%91%e4%b8%80%e6%96%87%e5%b8%a6%e4%bd%a0%e8%af%a6%e8%a7%a3%e4%bb%80%e4%b9%88%e6%98%af%e6%97%a0%e7%9b%91%e7%9d%a3%e5%ad%a6%e4%b9%a0unsupervised-learnin\/","title":{"rendered":"\u3010Machine Learning \u7cfb\u5217\u3011\u4e00\u6587\u5e26\u4f60\u8be6\u89e3\u4ec0\u4e48\u662f\u65e0\u76d1\u7763\u5b66\u4e60(Unsupervised Learning)"},"content":{"rendered":"<div class=\"article_content clearfix\" id=\"article_content\">\n <link href=\"https:\/\/csdnimg.cn\/release\/blogv2\/dist\/mdeditor\/css\/editerView\/kdoc_html_views-1a98987dfd.css\" rel=\"stylesheet\"\/>\n <link href=\"https:\/\/csdnimg.cn\/release\/blogv2\/dist\/mdeditor\/css\/editerView\/ck_htmledit_views-704d5b9767.css\" rel=\"stylesheet\"\/>\n<div class=\"markdown_views prism-atom-one-dark\" id=\"content_views\">\n  <svg style=\"display: none;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n   <path d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" stroke-linecap=\"round\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\">\n   <\/path>\n  <\/svg><\/p>\n<h2>\n   <a id=\"_0\"><br \/>\n   <\/a><br \/>\n   \u524d\u8a00<br \/>\n  <\/h2>\n<blockquote>\n<p>\n    <strong><br \/>\n     \u673a\u5668\u5b66\u4e60\u4e3b\u8981\u5206\u4e3a\u4e09\u7c7b\uff1a\u6709\u76d1\u7763\u5b66\u4e60\u3001\u65e0\u76d1\u7763\u5b66\u4e60\u548c\u5f3a\u5316\u5b66\u4e60\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u65e0\u76d1\u7763\u5b66\u4e60(Unsupervised Learning)\u7684\u539f\u7406\u3001\u5e38\u89c1\u7b97\u6cd5\u548c\u5e94\u7528\u9886\u57df\u3002<br \/>\n    <\/strong>\n   <\/p>\n<\/blockquote>\n<div class=\"toc\">\n<h4>\n    \u6587\u7ae0\u76ee\u5f55<br \/>\n   <\/h4>\n<ul>\n<li>\n     <a href=\"#_0\" rel=\"nofollow\"><br \/>\n      \u524d\u8a00<br \/>\n     <\/a>\n    <\/li>\n<li>\n     <a href=\"#_9\" rel=\"nofollow\"><br \/>\n      \u4e00\u3001\u539f\u7406<br \/>\n     <\/a>\n    <\/li>\n<li>\n     <a href=\"#_20\" rel=\"nofollow\"><br \/>\n      \u4e8c\u3001\u7b97\u6cd5<br \/>\n     <\/a>\n    <\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>\n         <a href=\"#1K_23\" rel=\"nofollow\"><br \/>\n          1\ufe0f\u20e3K\u5747\u503c\u805a\u7c7b<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#2DBSCAN_27\" rel=\"nofollow\"><br \/>\n          2\ufe0f\u20e3DBSCAN<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#3_31\" rel=\"nofollow\"><br \/>\n          3\ufe0f\u20e3\u4e3b\u6210\u5206\u5206\u6790<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#4tSNE_35\" rel=\"nofollow\"><br \/>\n          4\ufe0f\u20e3t-SNE<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#5_39\" rel=\"nofollow\"><br \/>\n          5\ufe0f\u20e3\u5173\u8054\u89c4\u5219\u6316\u6398<br \/>\n         <\/a>\n        <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n     <a href=\"#_43\" rel=\"nofollow\"><br \/>\n      \u4e09\u3001\u5e94\u7528\u9886\u57df<br \/>\n     <\/a>\n    <\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>\n         <a href=\"#1_46\" rel=\"nofollow\"><br \/>\n          1\ufe0f\u20e3\u56fe\u50cf\u5206\u5272<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#2_50\" rel=\"nofollow\"><br \/>\n          2\ufe0f\u20e3\u63a8\u8350\u7cfb\u7edf<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#3_54\" rel=\"nofollow\"><br \/>\n          3\ufe0f\u20e3\u793e\u4ea4\u7f51\u7edc\u5206\u6790<br \/>\n         <\/a>\n        <\/li>\n<li>\n         <a href=\"#4_58\" rel=\"nofollow\"><br \/>\n          4\ufe0f\u20e3\u81ea\u52a8\u9a7e\u9a76<br \/>\n         <\/a>\n        <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n     <a href=\"#_62\" rel=\"nofollow\"><br \/>\n      \u56db\u3001\u603b\u7ed3<br \/>\n     <\/a>\n    <\/li>\n<li>\n     <a href=\"#_66\" rel=\"nofollow\"><br \/>\n      \u3010\u514d\u8d39\u8d60\u4e66\u3011<br \/>\n     <\/a>\n    <\/li>\n<li>\n<ul>\n<li>\n       <a href=\"#_73\" rel=\"nofollow\"><br \/>\n        \u6ce8\uff1a\u62bd\u5956\u65b9\u5f0f\u4e3a&lt;\u811a\u672c\u968f\u673a\u62bd\u53d6&gt;\uff0c\u4f1a\u5728\u6211\u7684\u4e3b\u9875\u52a8\u6001\u5982\u671f\u516c\u5e03\u4e2d\u5956\u8005\uff0c\u5305\u90ae\u5230\u5bb6\u3002<br \/>\n       <\/a>\n      <\/li>\n<\/ul>\n<\/li>\n<\/ul><\/div>\n<\/p>\n<hr\/>\n<h2>\n   <a id=\"_9\"><br \/>\n   <\/a><br \/>\n   \u4e00\u3001\u539f\u7406<br \/>\n  <\/h2>\n<p>\n   \u65e0\u76d1\u7763\u5b66\u4e60\u662f\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u4e00\u79cd\u91cd\u8981\u65b9\u6cd5\uff0c\u4e0e\u76d1\u7763\u5b66\u4e60\u76f8\u5bf9\u5e94\u3002<br \/>\n   <strong><br \/>\n    \u5b83\u7684\u76ee\u6807\u662f\u4ece\u65e0\u6807\u7b7e\u7684\u6570\u636e\u4e2d\u53d1\u73b0\u9690\u85cf\u7684\u7ed3\u6784\u548c\u6a21\u5f0f\uff0c\u800c\u4e0d\u9700\u8981\u9884\u5148\u5b9a\u4e49\u7684\u76ee\u6807\u53d8\u91cf\u3002<br \/>\n   <\/strong>\n  <\/p>\n<p>\n   <strong><br \/>\n    \u65e0\u76d1\u7763\u5b66\u4e60\u7684\u6838\u5fc3\u601d\u60f3\u662f\u901a\u8fc7\u5bf9\u6570\u636e\u7684\u7edf\u8ba1\u7279\u6027\u548c\u76f8\u4f3c\u6027\u8fdb\u884c\u5206\u6790\uff0c\u6765\u53d1\u73b0\u6570\u636e\u4e2d\u7684\u6f5c\u5728\u7ed3\u6784\u548c\u6a21\u5f0f\u3002<br \/>\n   <\/strong>\n  <\/p>\n<p>\n   \u4e0e\u76d1\u7763\u5b66\u4e60\u4e0d\u540c\uff0c\u65e0\u76d1\u7763\u5b66\u4e60\u4e0d\u9700\u8981\u4e8b\u5148\u6807\u8bb0\u597d\u7684\u8bad\u7ec3\u6570\u636e\uff0c\u800c\u662f\u901a\u8fc7\u5bf9\u6570\u636e\u7684\u81ea\u52a8\u5904\u7406\u548c\u805a\u7c7b\u6765\u8fdb\u884c\u5b66\u4e60\u3002\n  <\/p>\n<p>\n   <strong><br \/>\n    \u65e0\u76d1\u7763\u5b66\u4e60\u53ef\u4ee5\u5206\u4e3a\u4e24\u7c7b\u95ee\u9898\uff1a\u805a\u7c7b\u548c\u964d\u7ef4\u3002<br \/>\n   <\/strong><br \/>\n   \u805a\u7c7b\u95ee\u9898\u662f\u5c06\u6570\u636e\u5206\u6210\u4e0d\u540c\u7684\u7ec4\u6216\u7c07\uff0c\u4f7f\u5f97\u540c\u4e00\u7ec4\u5185\u7684\u6570\u636e\u76f8\u4f3c\u5ea6\u9ad8\uff0c\u4e0d\u540c\u7ec4\u4e4b\u95f4\u7684\u76f8\u4f3c\u5ea6\u4f4e\u3002\u964d\u7ef4\u95ee\u9898\u662f\u5c06\u9ad8\u7ef4\u6570\u636e\u6620\u5c04\u5230\u4f4e\u7ef4\u7a7a\u95f4\uff0c\u4ee5\u51cf\u5c11\u7279\u5f81\u7ef4\u5ea6\u548c\u6570\u636e\u590d\u6742\u6027\u3002<br \/>\n   \n  <\/p>\n<h2>\n   <a id=\"_20\"><br \/>\n   <\/a><br \/>\n   \u4e8c\u3001\u7b97\u6cd5<br \/>\n  <\/h2>\n<p>\n   <strong><br \/>\n    \u65e0\u76d1\u7763\u5b66\u4e60\u4e2d\u6709\u8bb8\u591a\u7ecf\u5178\u7684\u7b97\u6cd5\uff0c\u4e0b\u9762\u4ecb\u7ecd\u5176\u4e2d\u4e00\u4e9b\u5e38\u89c1\u7684\u7b97\u6cd5\uff1a<br \/>\n   <\/strong>\n  <\/p>\n<h4>\n   <a id=\"1K_23\"><br \/>\n   <\/a><br \/>\n   1\ufe0f\u20e3K\u5747\u503c\u805a\u7c7b<br \/>\n  <\/h4>\n<p>\n   K\u5747\u503c\u805a\u7c7b\u662f\u4e00\u79cd\u5e38\u7528\u7684\u805a\u7c7b\u7b97\u6cd5\u3002\u5b83\u5c06\u6570\u636e\u5206\u6210K\u4e2a\u7c07\uff0c\u6bcf\u4e2a\u7c07\u7531\u5176\u8d28\u5fc3\uff08\u7c07\u4e2d\u5fc3\uff09\u6765\u8868\u793a\u3002\u7b97\u6cd5\u7684\u6838\u5fc3\u601d\u60f3\u662f\u901a\u8fc7\u6700\u5c0f\u5316\u6570\u636e\u70b9\u4e0e\u5176\u6240\u5c5e\u7c07\u8d28\u5fc3\u4e4b\u95f4\u7684\u8ddd\u79bb\u6765\u8fdb\u884c\u805a\u7c7b\u3002<br \/>\n   \n  <\/p>\n<h4>\n   <a id=\"2DBSCAN_27\"><br \/>\n   <\/a><br \/>\n   2\ufe0f\u20e3DBSCAN<br \/>\n  <\/h4>\n<p>\n   DBSCAN\uff08Density-Based Spatial Clustering of Applications with Noise\uff09\u662f\u4e00\u79cd\u57fa\u4e8e\u5bc6\u5ea6\u7684\u805a\u7c7b\u7b97\u6cd5\u3002\u5b83\u5c06\u6570\u636e\u70b9\u5206\u4e3a\u6838\u5fc3\u70b9\u3001\u8fb9\u754c\u70b9\u548c\u566a\u58f0\u70b9\uff0c\u5e76\u901a\u8fc7\u5bc6\u5ea6\u53ef\u8fbe\u6027\u6765\u5224\u65ad\u6570\u636e\u70b9\u662f\u5426\u5c5e\u4e8e\u540c\u4e00\u7c07\u3002<br \/>\n   \n  <\/p>\n<h4>\n   <a id=\"3_31\"><br \/>\n   <\/a><br \/>\n   3\ufe0f\u20e3\u4e3b\u6210\u5206\u5206\u6790<br \/>\n  <\/h4>\n<p>\n   \u4e3b\u6210\u5206\u5206\u6790\uff08Principal Component Analysis\uff0cPCA\uff09\u662f\u4e00\u79cd\u5e38\u7528\u7684\u964d\u7ef4\u7b97\u6cd5\u3002\u5b83\u901a\u8fc7\u7ebf\u6027\u53d8\u6362\u5c06\u9ad8\u7ef4\u6570\u636e\u6295\u5f71\u5230\u4f4e\u7ef4\u7a7a\u95f4\uff0c\u4ee5\u4fdd\u7559\u6700\u91cd\u8981\u7684\u7279\u5f81\u3002PCA\u7684\u76ee\u6807\u662f\u627e\u5230\u4e00\u7ec4\u6b63\u4ea4\u57fa\uff0c\u4f7f\u5f97\u6295\u5f71\u540e\u7684\u6570\u636e\u5177\u6709\u6700\u5927\u7684\u65b9\u5dee\u3002<br \/>\n   \n  <\/p>\n<h4>\n   <a id=\"4tSNE_35\"><br \/>\n   <\/a><br \/>\n   4\ufe0f\u20e3t-SNE<br \/>\n  <\/h4>\n<p>\n   t-SNE\uff08t-distributed Stochastic Neighbor Embedding\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u53ef\u89c6\u5316\u9ad8\u7ef4\u6570\u636e\u7684\u964d\u7ef4\u7b97\u6cd5\u3002\u5b83\u901a\u8fc7\u4fdd\u6301\u6570\u636e\u70b9\u4e4b\u95f4\u7684\u76f8\u5bf9\u8ddd\u79bb\u5173\u7cfb\uff0c\u5c06\u9ad8\u7ef4\u6570\u636e\u6620\u5c04\u5230\u4f4e\u7ef4\u7a7a\u95f4\u3002t-SNE\u5728\u53ef\u89c6\u5316\u805a\u7c7b\u548c\u5206\u7c7b\u95ee\u9898\u4e0a\u8868\u73b0\u51fa\u8272\u3002<br \/>\n   \n  <\/p>\n<h4>\n   <a id=\"5_39\"><br \/>\n   <\/a><br \/>\n   5\ufe0f\u20e3\u5173\u8054\u89c4\u5219\u6316\u6398<br \/>\n  <\/h4>\n<p>\n   \u5173\u8054\u89c4\u5219\u6316\u6398\u662f\u4e00\u79cd\u7528\u4e8e\u53d1\u73b0\u6570\u636e\u96c6\u4e2d\u7684\u9891\u7e41\u9879\u96c6\u548c\u5173\u8054\u89c4\u5219\u7684\u7b97\u6cd5\u3002\u5b83\u901a\u8fc7\u5206\u6790\u6570\u636e\u4e2d\u7684\u9879\u4e4b\u95f4\u7684\u5173\u8054\u6027\uff0c\u6765\u53d1\u73b0\u9690\u85cf\u7684\u5173\u8054\u6a21\u5f0f\u3002\u5173\u8054\u89c4\u5219\u6316\u6398\u5728\u5e02\u573a\u7bee\u5b50\u5206\u6790\u3001\u63a8\u8350\u7cfb\u7edf\u7b49\u9886\u57df\u6709\u5e7f\u6cdb\u5e94\u7528\u3002<br \/>\n   \n  <\/p>\n<h2>\n   <a id=\"_43\"><br \/>\n   <\/a><br \/>\n   \u4e09\u3001\u5e94\u7528\u9886\u57df<br \/>\n  <\/h2>\n<p>\n   <strong><br \/>\n    \u65e0\u76d1\u7763\u5b66\u4e60\u5728\u5404\u4e2a\u9886\u57df\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u4e0b\u9762\u4ecb\u7ecd\u5176\u4e2d\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u9886\u57df\uff1a<br \/>\n   <\/strong>\n  <\/p>\n<h4>\n   <a id=\"1_46\"><br \/>\n   <\/a><br \/>\n   1\ufe0f\u20e3\u56fe\u50cf\u5206\u5272<br \/>\n  <\/h4>\n<p>\n   \u5728\u8ba1\u7b97\u673a\u89c6\u89c9\u9886\u57df\uff0c\u65e0\u76d1\u7763\u5b66\u4e60\u88ab\u7528\u4e8e\u56fe\u50cf\u5206\u5272\u4efb\u52a1\u3002\u901a\u8fc7\u5bf9\u56fe\u50cf\u4e2d\u7684\u50cf\u7d20\u8fdb\u884c\u805a\u7c7b\uff0c\u53ef\u4ee5\u5c06\u56fe\u50cf\u5206\u6210\u4e0d\u540c\u7684\u533a\u57df\uff0c\u4ee5\u4fbf\u8fdb\u884c\u5bf9\u8c61\u8bc6\u522b\u3001\u56fe\u50cf\u5206\u6790\u7b49\u8fdb\u4e00\u6b65\u5904\u7406\u3002<br \/>\n   \n  <\/p>\n<h4>\n   <a id=\"2_50\"><br \/>\n   <\/a><br \/>\n   2\ufe0f\u20e3\u63a8\u8350\u7cfb\u7edf<br \/>\n  <\/h4>\n<p>\n   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