“`\u805a\u7c7b\u5206\u6790\u8ba1\u7b97\u65b9\u6cd5\u4e3b\u8981\u6709\uff1a \u5c42\u6b21\u7684\u65b9\u6cd5(hierarchical method)\u3001\u5212\u5206\u65b9\u6cd5(partitioning method)\u3001\u57fa\u4e8e\u5bc6\u5ea6\u7684\u65b9\u6cd5(density-based method)\u3001\u57fa\u4e8e\u7f51\u683c\u7684\u65b9\u6cd5(grid-based method)\u3001\u57fa\u4e8e\u6a21\u578b\u7684\u65b9\u6cd5(model-based method)\u7b49\u3002\u5176\u4e2d\uff0c\u524d\u4e24\u79cd\u7b97\u6cd5\u662f\u5229\u7528\u7edf\u8ba1\u5b66\u5b9a\u4e49\u7684\u8ddd\u79bb\u8fdb\u884c\u5ea6\u91cf\u3002<\/p>\n
k-means \u7b97\u6cd5\u7684\u5de5\u4f5c\u8fc7\u7a0b\u8bf4\u660e\u5982\u4e0b\uff1a\u9996\u5148\u4ecen\u4e2a\u6570\u636e\u5bf9\u8c61\u4efb\u610f\u9009\u62e9 k \u4e2a\u5bf9\u8c61\u4f5c\u4e3a\u521d\u59cb\u805a\u7c7b\u4e2d\u5fc3;\u800c\u5bf9\u4e8e\u6240\u5269\u4e0b\u5176\u5b83\u5bf9\u8c61\uff0c\u5219\u6839\u636e\u5b83\u4eec\u4e0e\u8fd9\u4e9b\u805a\u7c7b\u4e2d\u5fc3\u7684\u76f8\u4f3c\u5ea6(\u8ddd\u79bb)\uff0c\u5206\u522b\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u4e0e\u5176\u6700\u76f8\u4f3c\u7684(\u805a\u7c7b\u4e2d\u5fc3\u6240\u4ee3\u8868\u7684)\u805a\u7c7b;\u7136 \u540e\u518d\u8ba1\u7b97\u6bcf\u4e2a\u6240\u83b7\u65b0\u805a\u7c7b\u7684\u805a\u7c7b\u4e2d\u5fc3(\u8be5\u805a\u7c7b\u4e2d\u6240\u6709\u5bf9\u8c61\u7684\u5747\u503c);\u4e0d\u65ad\u91cd\u590d\u8fd9\u4e00\u8fc7\u7a0b\u76f4\u5230\u6807\u51c6\u6d4b\u5ea6\u51fd\u6570\u5f00\u59cb\u6536\u655b\u4e3a\u6b62\u3002\u4e00\u822c\u90fd\u91c7\u7528\u5747\u65b9\u5dee\u4f5c\u4e3a\u6807\u51c6\u6d4b\u5ea6\u51fd\u6570. k\u4e2a\u805a\u7c7b\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a\u5404\u805a\u7c7b\u672c\u8eab\u5c3d\u53ef\u80fd\u7684\u7d27\u51d1\uff0c\u800c\u5404\u805a\u7c7b\u4e4b\u95f4\u5c3d\u53ef\u80fd\u7684\u5206\u5f00\u3002<\/p>\n
<strong>\u5176\u6d41\u7a0b\u5982\u4e0b\uff1a<\/strong><\/p>\n
(1)\u4ece n\u4e2a\u6570\u636e\u5bf9\u8c61\u4efb\u610f\u9009\u62e9 k \u4e2a\u5bf9\u8c61\u4f5c\u4e3a\u521d\u59cb\u805a\u7c7b\u4e2d\u5fc3;<\/p>\n
(2)\u6839\u636e\u6bcf\u4e2a\u805a\u7c7b\u5bf9\u8c61\u7684\u5747\u503c(\u4e2d\u5fc3\u5bf9\u8c61)\uff0c\u8ba1\u7b97\u6bcf\u4e2a\u5bf9\u8c61\u4e0e\u8fd9\u4e9b\u4e2d\u5fc3\u5bf9\u8c61\u7684\u8ddd\u79bb;\u5e76\u6839\u636e\u6700\u5c0f\u8ddd\u79bb\u91cd\u65b0\u5bf9\u76f8\u5e94\u5bf9\u8c61\u8fdb\u884c\u5212\u5206;<\/p>\n
(3)\u91cd\u65b0\u8ba1\u7b97\u6bcf\u4e2a(\u6709\u53d8\u5316)\u805a\u7c7b\u7684\u5747\u503c(\u4e2d\u5fc3\u5bf9\u8c61);<\/p>\n
(4)\u5faa\u73af(2)\u3001(3)\u76f4\u5230\u6bcf\u4e2a\u805a\u7c7b\u4e0d\u518d\u53d1\u751f\u53d8\u5316\u4e3a\u6b62(\u6807\u51c6\u6d4b\u91cf\u51fd\u6570\u6536\u655b)\u3002<\/p>\n
<strong>\u4f18\u70b9\uff1a<\/strong> \u672c\u7b97\u6cd5\u786e\u5b9a\u7684K \u4e2a\u5212\u5206\u5230\u8fbe\u5e73\u65b9\u8bef\u5dee\u6700\u5c0f\u3002\u5f53\u805a\u7c7b\u662f\u5bc6\u96c6\u7684\uff0c\u4e14\u7c7b\u4e0e\u7c7b\u4e4b\u95f4\u533a\u522b\u660e\u663e\u65f6\uff0c\u6548\u679c\u8f83\u597d\u3002\u5bf9\u4e8e\u5904\u7406\u5927\u6570\u636e\u96c6\uff0c\u8fd9\u4e2a\u7b97\u6cd5\u662f\u76f8\u5bf9\u53ef\u4f38\u7f29\u548c\u9ad8\u6548\u7684\uff0c\u8ba1\u7b97\u7684\u590d\u6742\u5ea6\u4e3a O(NKt)\uff0c\u5176\u4e2dN\u662f\u6570\u636e\u5bf9\u8c61\u7684\u6570\u76ee\uff0ct\u662f\u8fed\u4ee3\u7684\u6b21\u6570\u3002\u4e00\u822c\u6765\u8bf4\uff0cK<<\/p>\n
<strong>\u7f3a\u70b9\uff1a<\/strong> 1. K \u662f\u4e8b\u5148\u7ed9\u5b9a\u7684\uff0c\u4f46\u975e\u5e38\u96be\u4ee5\u9009\u5b9a;2. \u521d\u59cb\u805a\u7c7b\u4e2d\u5fc3\u7684\u9009\u62e9\u5bf9\u805a\u7c7b\u7ed3\u679c\u6709\u8f83\u5927\u7684\u5f71\u54cd\u3002<\/p>\n
“`<\/p>\n","protected":false},"excerpt":{"rendered":"
“`\u805a\u7c7b\u5206\u6790\u8ba1\u7b97\u65b9\u6cd5\u4e3b\u8981\u6709\uff1a \u5c42\u6b21\u7684\u65b9\u6cd5(hierarchical method)\u3001\u5212\u5206\u65b9\u6cd5(pa […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-40661","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/40661","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=40661"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/40661\/revisions"}],"predecessor-version":[{"id":40662,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/40661\/revisions\/40662"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=40661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=40661"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=40661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}