{"id":2591,"date":"2023-01-05T17:44:49","date_gmt":"2023-01-05T16:44:49","guid":{"rendered":"https:\/\/ff.mhrooz.xyz\/?p=2591"},"modified":"2023-01-05T17:48:14","modified_gmt":"2023-01-05T16:48:14","slug":"clustering_-_probabilistic_model-based_methods_1","status":"publish","type":"post","link":"https:\/\/blog.mhrooz.xyz\/index.php\/2023\/01\/05\/clustering_-_probabilistic_model-based_methods_1\/","title":{"rendered":"Clustering &#8211; Probabilistic Model-Based Methods (1)"},"content":{"rendered":"\n<!doctype html>\n<html>\n<head>\n<meta charset='UTF-8'><meta name='viewport' content='width=device-width initial-scale=1'>\n\n<link href='https:\/\/fonts.loli.net\/css?family=PT+Serif:400,400italic,700,700italic&#038;subset=latin,cyrillic-ext,cyrillic,latin-ext' rel='stylesheet' type='text\/css' \/><style type='text\/css'>html {overflow-x: initial !important;}:root { --bg-color: #ffffff; --text-color: #333333; --select-text-bg-color: #B5D6FC; --select-text-font-color: auto; --monospace: 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button;\n}\n\ninput {\n\tborder: 1px solid #aaa;\n}\n\n.megamenu-menu-header #megamenu-menu-header-title,\n.megamenu-menu-header:hover, \n.megamenu-menu-header:focus {\n\tcolor: inherit;\n}\n\n.dropdown-menu .divider {\n\tborder-color: #e5e5e5;\n\topacity: 1;\n}\n\n\/* https:\/\/github.com\/typora\/typora-issues\/issues\/2046 *\/\n.os-windows-7 strong,\n.os-windows-7 strong  {\n\tfont-weight: 760;\n}\n\n.ty-preferences .btn-default {\n\tbackground: transparent;\n}\n\n.ty-preferences .window-header {\n\tborder-bottom: 1px dashed #202B33;\n\tbox-shadow: none;\n}\n\n#sidebar-loading-template, #sidebar-loading-template.file-list-item {\n\tcolor: #777;\n}\n\n.searchpanel-search-option-btn.active {\n\tbackground: #777;\n\tcolor: white;\n}\n\n.export-detail, .light .export-detail, \n.light .export-item.active, \n.light .export-items-list-control {\n\tbackground: #e0e0e0;\n\tborder-radius: 2px;\n\tfont-weight: 700;\n\tcolor: inherit\n}\n\n\n\nmjx-container[jax=\"SVG\"] {\n  direction: 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0;\n\t\t\t\t\t\t} @media print { @page {margin: 0 0 0 0;} body.typora-export {padding-left: 0; padding-right: 0;} #write {padding:0;}}\n<\/style><title>4_2_probabilistic_Model-based_Methods<\/title>\n<\/head>\n<body class='typora-export'><div class='typora-export-content'>\n<div id='write'  class=''><p class=\"md-toc-content\" role=\"list\"><span role=\"listitem\" class=\"md-toc-item md-toc-h1\" data-ref=\"n0\"><a class=\"md-toc-inner\" style=\"cursor: pointer;\" href=\"#clustering---probabilistic-model-based-methods-1\">Clustering &#8211; Probabilistic Model-Based Methods (1)<\/a><\/span><span role=\"listitem\" class=\"md-toc-item md-toc-h2\" data-ref=\"n3\"><a class=\"md-toc-inner\" style=\"cursor: pointer;\" href=\"#\u9ad8\u65af\u6df7\u5408\u6a21\u578b\">\u9ad8\u65af\u6df7\u5408\u6a21\u578b<\/a><\/span><span role=\"listitem\" class=\"md-toc-item md-toc-h2\" data-ref=\"n69\"><a class=\"md-toc-inner\" style=\"cursor: pointer;\" href=\"#em\u7b97\u6cd5\">EM\u7b97\u6cd5<\/a><\/span><\/p><\/div><p><span>\u6211\u4eec\u5728\u8fd9\u4e00\u8282\u4f1a\u4ecb\u7ecd\u57fa\u4e8e\u6982\u7387\u6a21\u578b\u7684\u5206\u7c7b\u65b9\u6cd5\u3002\u8fd9\u79cd\u7b97\u6cd5\u7684\u601d\u60f3\u662f\u5c06\u6570\u636e\u5212\u5206\u4e3a\u51e0\u79cd\u6982\u7387\u5206\u5e03\u7684\u6df7\u5408\u6a21\u578b\uff0c\u5e76\u4e14\u4f30\u8ba1\u51fa\u53c2\u6570\uff0c\u4ece\u800c\u5b8c\u6210\u805a\u7c7b\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5047\u5982\u73b0\u5728\u6709\u7537\u751f\u6570\u540d\uff0c\u5973\u751f\u6570\u540d\uff0c\u6211\u4eec\u60f3\u8981\u7edf\u8ba1\u4e0d\u540c\u6027\u522b\u7684\u8eab\u9ad8\u5206\u5e03\u3002\u4f46\u662f\u6211\u4eec\u4ec5\u4ec5\u53ea\u662f\u77e5\u9053\u8fd9\u4e9b\u4eba\u7684\u8eab\u9ad8\uff0c\u4e0d\u77e5\u9053\u8fd9\u4e9b\u4eba\u7684\u6027\u522b\u3002\u6211\u4eec\u5148\u9a8c\u5730\u77e5\u9053\uff0c\u8eab\u9ad8\u5206\u5e03\u4f1a\u9075\u5faa\u9ad8\u65af\u5206\u5e03\u3002\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u7528\u8fd9\u79cd\u65b9\u6cd5\u6765\u5b8c\u6210\u805a\u7c7b\uff0c\u627e\u5230\u9ad8\u65af\u5206\u5e03\u6240\u5bf9\u5e94\u7684\u5747\u503c\u548c\u65b9\u5dee\u53c2\u6570\u3002<\/span><\/p><h2 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data-mml-node=\"mi\"><use data-c=\"1D467\" xlink:href=\"#MJX-1720-TEX-I-1D467\"><\/use><\/g><g data-mml-node=\"mi\" transform=\"translate(498,-150) scale(0.707)\"><use data-c=\"1D458\" xlink:href=\"#MJX-1720-TEX-I-1D458\"><\/use><\/g><\/g><g data-mml-node=\"mo\" transform=\"translate(1848.4,0)\"><use data-c=\"29\" xlink:href=\"#MJX-1720-TEX-N-29\"><\/use><\/g><\/g><\/g><\/svg><mjx-assistive-mml unselectable=\"on\" display=\"inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mi>\u03b3<\/mi><mo stretchy=\"false\">(<\/mo><msub><mi>z<\/mi><mi>k<\/mi><\/msub><mo stretchy=\"false\">)<\/mo><\/math><\/mjx-assistive-mml><\/mjx-container><script type=\"math\/tex\">\\gamma(z_k)<\/script><span>\u53ef\u4ee5\u7406\u89e3\u4e3a\u7b2c<\/span><mjx-container class=\"MathJax\" jax=\"SVG\" style=\"position: relative;\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"1.179ex\" height=\"1.595ex\" role=\"img\" focusable=\"false\" viewBox=\"0 -694 521 705\" 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href='http:\/\/iizz.ddns.net:9595\/index.php\/2023\/01\/03\/clustering_-_partitioning_methods\/'><span>Clustering &#8211; Partitioning Methods<\/span><\/a><\/p><\/div><\/div>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>4_2_probabilistic_Model-based_Methods Clustering &#038;#8211<a class=\"more-link\" href=\"https:\/\/blog.mhrooz.xyz\/index.php\/2023\/01\/05\/clustering_-_probabilistic_model-based_methods_1\/\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">&#8220;Clustering &#8211; Probabilistic Model-Based Methods 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