{"id":3068,"date":"2025-08-09T09:43:59","date_gmt":"2025-08-09T01:43:59","guid":{"rendered":"https:\/\/www.leexinghai.com\/aic\/?p=3068"},"modified":"2025-08-17T10:40:40","modified_gmt":"2025-08-17T02:40:40","slug":"2-7%e5%8e%9f%e9%97%ae%e9%a2%98%e5%92%8c%e5%af%b9%e5%81%b6%e9%97%ae%e9%a2%98-%e5%88%9d%e5%ad%a6%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.leexinghai.com\/aic\/2-7%e5%8e%9f%e9%97%ae%e9%a2%98%e5%92%8c%e5%af%b9%e5%81%b6%e9%97%ae%e9%a2%98-%e5%88%9d%e5%ad%a6%e7%90%86%e8%a7%a3\/","title":{"rendered":"2.7\u539f\u95ee\u9898\u548c\u5bf9\u5076\u95ee\u9898-\u521d\u5b66\u7406\u89e3"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe5 1. \u4ec0\u4e48\u662f\u539f\u95ee\u9898\uff1f<\/h2>\n\n\n\n<p>\u6211\u4eec\u5728 SVM \u4e2d\u6700\u5f00\u59cb\u8981\u89e3\u51b3\u7684\u662f\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfaf \u539f\u59cb\u76ee\u6807\uff1a\u627e\u4e00\u6761\u6700\u4f18\u5206\u7c7b\u76f4\u7ebf\uff0c\u8ba9\u95f4\u9694\u6700\u5927<\/h3>\n\n\n\n<p>\u6211\u4eec\u628a\u5b83\u5199\u6210\u4f18\u5316\u5f62\u5f0f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u539f\u95ee\u9898\uff08Primal Problem\uff09\uff1a<\/strong><\/p>\n<\/blockquote>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"514\" height=\"101\" src=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-8.png\" alt=\"\" class=\"wp-image-3069\" srcset=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-8.png 514w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-8-300x59.png 300w\" sizes=\"auto, (max-width: 514px) 100vw, 514px\" \/><\/figure>\n<\/div>\n\n\n<p>\u89e3\u91ca\u4e00\u4e0b\u8fd9\u516c\u5f0f\u7684\u610f\u601d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u03c9 \u662f\u76f4\u7ebf\u7684\u65b9\u5411<\/li>\n\n\n\n<li>b \u662f\u76f4\u7ebf\u504f\u79fb\u91cf<\/li>\n\n\n\n<li>\u6211\u4eec\u8981\u8ba9\u5206\u7c7b\u7ed3\u679c y<sub>i <\/sub>\u548c( \u03c9<sup>T<\/sup>X<sub>i<\/sub>+ b) \u4e00\u81f4\uff0c<strong>\u5e76\u4e14\u8ddd\u79bb\u81f3\u5c11\u662f 1<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe9 2. \u4ec0\u4e48\u662f\u5bf9\u5076\u95ee\u9898\uff1f<\/h2>\n\n\n\n<p>\u539f\u95ee\u9898\u4e2d\u53d8\u91cf\u662f (\u03c9, b)\uff0c\u4f46\u5b83\u4e0d\u597d\u76f4\u63a5\u89e3\uff0c\u5c24\u5176\u5728\u5f15\u5165\u6838\u51fd\u6570\u65f6\u975e\u5e38\u9ebb\u70e6\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u79cd\u65b9\u6cd5\u628a\u5b83<strong>\u53d8\u6210\u53e6\u4e00\u4e2a\u6570\u5b66\u5f62\u5f0f\uff0c\u53eb\u505a\u201c\u5bf9\u5076\u95ee\u9898\uff08Dual Problem\uff09\u201d<\/strong>\uff0c\u5b83\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u5bf9\u5076\u95ee\u9898\uff1a<\/strong><\/p>\n<\/blockquote>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"569\" height=\"231\" src=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-10.png\" alt=\"\" class=\"wp-image-3071\" srcset=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-10.png 569w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2025\/08\/image-10-300x122.png 300w\" sizes=\"auto, (max-width: 569px) 100vw, 569px\" \/><\/figure>\n<\/div>\n\n\n<p>\u8fd9\u91cc\u7684\u53d8\u91cf\u662f \u03b1<sub>i<\/sub>\uff0c\u53eb\u505a\u201c\u62c9\u683c\u6717\u65e5\u4e58\u5b50\u201d\uff08\u4f60\u53ef\u4ee5\u7406\u89e3\u4e3a\u6bcf\u4e2a\u6837\u672c\u70b9\u7684\u201c\u5f71\u54cd\u56e0\u5b50\u201d\uff09\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe6 3. \u4e3a\u4ec0\u4e48\u8981\u6784\u9020\u5bf9\u5076\u95ee\u9898\uff1f\u6709\u4ec0\u4e48\u597d\u5904\uff1f<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u539f\u95ee\u9898<\/th><th>\u5bf9\u5076\u95ee\u9898<\/th><\/tr><\/thead><tbody><tr><td>\u53d8\u91cf\u662f \u03c9, b<\/td><td>\u53d8\u91cf\u662f \u03b1<sub>i<\/sub><\/td><\/tr><tr><td>\u5fc5\u987b\u663e\u5f0f\u5904\u7406 X<sub>i<\/sub><\/td><td>\u53ea\u51fa\u73b0\u70b9\u79ef &lt;X<sub>i<\/sub>,X<sub>j<\/sub>&gt;<\/td><\/tr><tr><td>\u4e0d\u80fd\u8f7b\u6613\u5f15\u5165\u6838\u51fd\u6570<\/td><td>\u80fd\u76f4\u63a5\u7528\u6838\u51fd\u6570\u66ff\u4ee3\u70b9\u79ef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 \u5bf9\u5076\u95ee\u9898\u6700\u5927\u597d\u5904\uff1a\u53ef\u4ee5\u5f15\u5165<strong>\u6838\u51fd\u6570 K(x, x')<\/strong><\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5f53\u6211\u4eec\u7528\u975e\u7ebf\u6027\u53d8\u6362\u65f6\uff0c\u53ea\u8981\u628a &lt;X<sub>i<\/sub>,X<sub>j<\/sub>&gt; \u6362\u6210 K(X<sub>i<\/sub>, X<sub>j<\/sub>)\uff0c\u5c31\u53ef\u4ee5\u8fdb\u884c\u6838 SVM \u8ba1\u7b97\uff01<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe8 4. \u539f\u95ee\u9898\u4e0e\u5bf9\u5076\u95ee\u9898\u7684\u5173\u7cfb\uff08\u603b\u7ed3\uff09<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u95ee\u9898\u662f\u76f4\u89c2\u5b9a\u4e49\uff0c\u76ee\u6807\u662f\u6700\u5c0f\u5316 ||\u03c9||<sup>2<\/sup><\/li>\n\n\n\n<li>\u5bf9\u5076\u95ee\u9898\u662f\u901a\u8fc7\u201c\u62c9\u683c\u6717\u65e5\u5bf9\u5076\u6027\u201d\u4ece\u539f\u95ee\u9898\u63a8\u5bfc\u51fa\u6765\u7684\u7b49\u4ef7\u5f62\u5f0f<\/li>\n\n\n\n<li>\u539f\u95ee\u9898\u91cc\u6211\u4eec\u76f4\u63a5\u4f18\u5316 \u03c9\uff0c\u4f46\u4e0d\u597d\u7528\u5728\u975e\u7ebf\u6027\u7a7a\u95f4<\/li>\n\n\n\n<li>\u5bf9\u5076\u95ee\u9898\u5219\u53ef\u4ee5\u8f7b\u677e\u5f15\u5165\u6838\u51fd\u6570\uff0c\u5904\u7406\u9ad8\u7ef4\u751a\u81f3\u65e0\u9650\u7ef4\u7a7a\u95f4<\/li>\n\n\n\n<li>\u5bf9\u5076\u95ee\u9898\u89e3\u51fa\u7684 \u03b1<sub>i<\/sub> \u53ef\u4ee5\u7528\u6765\u91cd\u5efa \u03c9 \u548c\u5206\u7c7b\u51fd\u6570<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udccc \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u539f\u95ee\u9898<\/strong>\u662f\u6211\u4eec\u8981\u89e3\u51b3\u7684\u5b9e\u9645\u51e0\u4f55\u95ee\u9898\uff0c<br><strong>\u5bf9\u5076\u95ee\u9898<\/strong>\u662f\u6362\u4e00\u79cd\u65b9\u5f0f\u89e3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8ba9\u5b83\u53d8\u5f97\u66f4\u5bb9\u6613\u3001\u66f4\u5f3a\u5927\uff0c\u5c24\u5176\u662f\u53ef\u4ee5\u5f15\u5165\u6838\u51fd\u6570\u5904\u7406\u975e\u7ebf\u6027\u6570\u636e\u3002<\/p>\n<\/blockquote>\n\n<div class=\"post-views content-post post-3068 entry-meta load-static\">\r\n\t\t\t\t<span class=\"post-views-icon dashicons dashicons-chart-bar\"><\/span> <span class=\"post-views-label\">Counting:<\/span> <span class=\"post-views-count\">89<\/span>\r\n\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\ud83d\udfe5 1. \u4ec0\u4e48\u662f\u539f\u95ee\u9898\uff1f \u6211\u4eec\u5728 SVM \u4e2d\u6700\u5f00\u59cb\u8981\u89e3\u51b3\u7684\u662f\u8fd9\u4e2a\u95ee\u9898\uff1a \ud83c\udfaf \u539f\u59cb\u76ee\u6807\uff1a\u627e\u4e00\u6761\u6700\u4f18\u5206\u7c7b\u76f4\u7ebf\uff0c\u8ba9\u95f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3045,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-3068","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mlsh"],"_links":{"self":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/3068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/comments?post=3068"}],"version-history":[{"count":4,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/3068\/revisions"}],"predecessor-version":[{"id":3177,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/3068\/revisions\/3177"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/media\/3045"}],"wp:attachment":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/media?parent=3068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/categories?post=3068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/tags?post=3068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}