{"id":4525,"date":"2019-07-05T06:56:15","date_gmt":"2019-07-04T22:56:15","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4525"},"modified":"2019-07-05T06:56:15","modified_gmt":"2019-07-04T22:56:15","slug":"%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0-kmeans%e8%81%9a%e7%b1%bb%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4525.html","title":{"rendered":"\u673a\u5668\u5b66\u4e60-Kmeans\u805a\u7c7b\u7b97\u6cd5"},"content":{"rendered":"\n<p>=Start=<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n\n\n\n<p>\u60f3\u901a\u8fc7\u5feb\u901f\u6574\u7406\u300a\u673a\u5668\u5b66\u4e60\u5b9e\u6218\u300b\u4e00\u4e66\u4e2d\u51fa\u73b0\u8fc7\u7684\u5404\u79cd\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7684\u539f\u7406\u53ca\u5176\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u8303\u56f4\u6765\u5feb\u901f\u5b66\u4e60\u3001\u4e86\u89e3\u5e38\u89c1\u7684\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n<h6 class=\"wp-block-heading\">1\u3001\u4ec0\u4e48\u662f\u805a\u7c7b\uff1f<\/h6>\n\n\n\n<p><strong>\u805a\u7c7b\u5206\u6790\u7b80\u79f0\u805a\u7c7b\uff08clustering\uff09\uff0c\u662f\u4e00\u4e2a\u628a\u6570\u636e\u96c6\u5212\u5206\u6210\u5b50\u96c6\u7684\u8fc7\u7a0b\uff0c\u6bcf\u4e00\u4e2a\u5b50\u96c6\u662f\u4e00\u4e2a\u7c07\uff08cluster\uff09\uff0c\u4f7f\u5f97\u7c07\u4e2d\u7684\u6837\u672c\u5f7c\u6b64\u76f8\u4f3c\uff0c\u4f46\u4e0e\u5176\u4ed6\u7c07\u4e2d\u7684\u6837\u672c\u4e0d\u76f8\u4f3c\u3002<\/strong><\/p>\n\n\n\n<p>\u805a\u7c7b\u5206\u6790\u4e0d\u9700\u8981\u4e8b\u5148\u77e5\u9053\u6837\u672c\u7684\u7c7b\u522b\uff0c\u751a\u81f3\u4e0d\u7528\u77e5\u9053\u7c7b\u522b\u4e2a\u6570\uff0c\u56e0\u6b64\u5b83\u662f\u4e00\u79cd\u65e0\u76d1\u7763\u7684\u5b66\u4e60\u7b97\u6cd5\uff0c\u4e00\u822c\u7528\u4e8e\u6570\u636e\u63a2\u7d22\uff0c\u6bd4\u5982\u7fa4\u7ec4\u53d1\u73b0\u548c\u79bb\u7fa4\u70b9\u68c0\u6d4b\uff0c\u8fd8\u53ef\u4ee5\u4f5c\u4e3a\u5176\u4ed6\u7b97\u6cd5\u7684\u9884\u5904\u7406\u6b65\u9aa4\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>2\u3001K-means\u805a\u7c7b\u7b97\u6cd5<\/strong><\/h6>\n\n\n\n<p>K-means\u805a\u7c7b\u7b97\u6cd5\uff0c\u4e5f\u88ab\u79f0\u4e3aK-\u5747\u503c\u7b97\u6cd5\u6216K-\u5e73\u5747\u7b97\u6cd5\uff0c\u662f\u4e00\u79cd\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684\u805a\u7c7b\u7b97\u6cd5\u3002<strong>\u8be5\u7b97\u6cd5\u7684\u4e3b\u8981\u529f\u80fd\u5c31\u662f\u5c06\u6240\u6709\u8f93\u5165\u7684\u6570\u636e\u5212\u5206\u6210\u4e3aK\u4e2a\u5b50\u96c6\u5408\uff0c\u5e76\u4e14\u8981\u6c42\u6bcf\u4e2a\u5b50\u96c6\u5408\u5185\u5404\u4e2a\u5143\u7d20\u4e4b\u95f4\u7684\u5dee\u5f02\u6027\u5c3d\u53ef\u80fd\u7684\u5c0f\uff0c\u800c\u4e0d\u540c\u5b50\u96c6\u5408\u7684\u5143\u7d20\u5dee\u5f02\u6027\u5c3d\u53ef\u80fd\u7684\u5927\u3002<\/strong><\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>3\u3001K-<\/strong><strong>means<\/strong><strong>\u7b97\u6cd5\u7684\u5b9e\u73b0\u6b65\u9aa4<\/strong><\/h6>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>\u4ece\u6837\u672c\u96c6\u5408\u4e2d\u968f\u673a\u62bd\u53d6k\u4e2a\u6837\u672c\u70b9\u4f5c\u4e3a\u521d\u59cb\u7c07\u7684\u4e2d\u5fc3\u3002<\/strong><\/li><li>\u5c06\u6bcf\u4e2a\u6837\u672c\u70b9\u5212\u5206\u5230\u8ddd\u79bb\u5b83\u6700\u8fd1\u7684\u4e2d\u5fc3\u70b9\u6240\u4ee3\u8868\u7684\u7c07\u4e2d\u3002<\/li><li>\u7528\u5404\u4e2a\u7c07\u4e2d\u6240\u6709\u6837\u672c\u70b9\u7684\u4e2d\u5fc3\u70b9\u4ee3\u8868\u7c07\u7684\u4e2d\u5fc3\u70b9\u3002<\/li><li><strong>\u91cd\u590d2\u548c3\uff0c\u76f4\u5230\u7c07\u7684\u4e2d\u5fc3\u70b9\u4e0d\u53d8\u6216\u8fbe\u5230\u8bbe\u5b9a\u7684\u8fed\u4ee3\u6b21\u6570\u6216\u8fbe\u5230\u8bbe\u5b9a\u7684\u5bb9\u9519\u8303\u56f4\u3002<\/strong><\/li><\/ol>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>4\u3001\u805a\u7c7b\u7b97\u6cd5\u7684\u6027\u80fd\u8bc4\u4ef7\u6307\u6807<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>(\u7c07\u5185)\u8bef\u5dee\u5e73\u65b9\u548c(within-cluster Sum of Squared Errors, SSE)\u2014\u2014\u53d6\u503c\u8d8a\u5c0f\u8868\u793a\u6548\u679c\u8d8a\u597d\uff1b<\/strong><\/li><li><strong>\u8f6e\u5ed3\u5206\u6790(silhouette analysis)\u2014\u2014\u53d6\u503c\u5728-1\u52301\u4e4b\u95f4\uff0c\u8d8a\u63a5\u8fd11\u8868\u793a\u6548\u679c\u8d8a\u597d\u3002<\/strong><\/li><\/ul>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>5\u3001<\/strong><strong>K-<\/strong><strong>means<\/strong><strong>\u7b97\u6cd5\u7684\u4f18\u7f3a\u70b9<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u4f18\u70b9\uff1a\u5bb9\u6613\u5b9e\u73b0\u3002<\/strong><\/li><li><strong>\u7f3a\u70b9\uff1a\u53ef\u80fd\u6536\u655b\u5230\u5c40\u90e8\u6700\u5c0f\u503c\uff0c\u5728\u5927\u89c4\u6a21\u6570\u636e\u96c6\u4e0a\u6536\u655b\u8f83\u6162\u3002<\/strong><\/li><li>\u4f7f\u7528\u6570\u636e\u7c7b\u578b\uff1a\u6570\u503c\u578b\u6570\u636e\u3002<\/li><\/ul>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u5341\u5206\u79cd\u7b97\u6cd5\u5c0f\u6545\u4e8b\u4e4bKmeans\u805a\u7c7b\u7b97\u6cd5<\/strong>#\u751f\u52a8\u5f62\u8c61\uff0c\u6613\u4e8e\u7406\u89e3<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/qK_EOrvy4pYhv97UvYRtug\">https:\/\/mp.weixin.qq.com\/s\/qK_EOrvy4pYhv97UvYRtug<\/a><\/li><li>K-means\u805a\u7c7b\u7b97\u6cd5<br><a href=\"https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/06\/2006910.html\">https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/06\/2006910.html<\/a><\/li><li>Kmeans\u805a\u7c7b\u7b97\u6cd5\u539f\u7406<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/vEKZigXKtxyFkg7_ft9YSw\">https:\/\/mp.weixin.qq.com\/s\/vEKZigXKtxyFkg7_ft9YSw<\/a><\/li><li>KMeans\u805a\u7c7b\u7b97\u6cd5\u601d\u60f3\u4e0e\u53ef\u89c6\u5316<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/THi1TFdqAnTIsQKih4XJKw\">https:\/\/mp.weixin.qq.com\/s\/THi1TFdqAnTIsQKih4XJKw<\/a><\/li><li>\u805a\u7c7b\u5206\u6790\u4e4bk-means\u7b97\u6cd5(SSE\u3001\u8f6e\u5ed3\u5206\u6790\uff09 #\u805a\u7c7b\u7b97\u6cd5\u7684\u6027\u80fd\u8bc4\u4ef7\u6307\u6807<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/JThS4QjCnse3x-sIJnednw\">https:\/\/mp.weixin.qq.com\/s\/JThS4QjCnse3x-sIJnednw<\/a><\/li><li>\u805a\u7c7b\u7b97\u6cd5\u7684\u8bc4\u4ef7\u6307\u6807\u2014\u2014\u8f6e\u5ed3\u7cfb\u6570<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/jXX8Nsfm9Icy0DvlMTvbvw\">https:\/\/mp.weixin.qq.com\/s\/jXX8Nsfm9Icy0DvlMTvbvw<\/a><\/li><\/ul>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u60f3\u901a\u8fc7\u5feb\u901f\u6574\u7406\u300a\u673a\u5668\u5b66\u4e60\u5b9e\u6218\u300b\u4e00\u4e66\u4e2d\u51fa\u73b0\u8fc7\u7684\u5404\u79cd\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7684\u539f\u7406\u53ca\u5176\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u8303\u56f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,1275],"tags":[1460,1441,1467,9,1461,1462],"class_list":["post-4525","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-1275","tag-kmeans","tag-machinelearning","tag-sse","tag-9","tag-1461","tag-1462"],"views":3526,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=4525"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4525\/revisions"}],"predecessor-version":[{"id":4536,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4525\/revisions\/4536"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}