{"id":4883,"date":"2025-03-09T00:32:10","date_gmt":"2025-03-08T16:32:10","guid":{"rendered":"https:\/\/infernews.com\/?page_id=4883"},"modified":"2025-03-09T00:32:10","modified_gmt":"2025-03-08T16:32:10","slug":"%e6%a8%a1%e5%9e%8b%e8%a8%93%e7%b7%b4-k-fold-cross-validation","status":"publish","type":"page","link":"https:\/\/infernews.com\/blog\/%e6%a8%a1%e5%9e%8b%e8%a8%93%e7%b7%b4-k-fold-cross-validation\/","title":{"rendered":"\u6a21\u578b\u8a13\u7df4 &#8211; k-fold cross-validation"},"content":{"rendered":"\n<p>k-fold cross-validation\uff08k \u6298\u4ea4\u53c9\u9a57\u8b49\uff09\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u7d71\u8a08\u5b78\u65b9\u6cd5\uff0c\u7528\u65bc\u8a55\u4f30\u6a5f\u5668\u5b78\u7fd2\u6a21\u578b\u7684\u6548\u80fd\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u6709\u9650\u7684\u6578\u64da\u96c6\u4e0a\uff0c\u66f4\u53ef\u9760\u5730\u4f30\u8a08\u6a21\u578b\u5728\u672a\u77e5\u6578\u64da\u4e0a\u7684\u8868\u73fe\uff0c\u6e1b\u5c11\u904e\u5ea6\u64ec\u5408\u7684\u98a8\u96aa\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f k-fold cross-validation \u7684\u904b\u4f5c\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8cc7\u6599\u5206\u5272\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5c07\u539f\u59cb\u6578\u64da\u96c6\u96a8\u6a5f\u5206\u6210 k \u500b\u5927\u5c0f\u76f8\u7b49\u7684\u5b50\u96c6\uff08\u6216\u7a31\u70ba\u300c\u6298\u300d\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fed\u4ee3\u8a13\u7df4\u8207\u9a57\u8b49\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9032\u884c k \u6b21\u8fed\u4ee3\u3002\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u9078\u64c7\u5176\u4e2d\u4e00\u500b\u5b50\u96c6\u4f5c\u70ba\u9a57\u8b49\u96c6\uff08\u6216\u7a31\u70ba\u6e2c\u8a66\u96c6\uff09\uff0c\u5176\u9918 k-1 \u500b\u5b50\u96c6\u5247\u4f5c\u70ba\u8a13\u7df4\u96c6\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u8a13\u7df4\u96c6\u8a13\u7df4\u6a21\u578b\uff0c\u7136\u5f8c\u5728\u9a57\u8b49\u96c6\u4e0a\u8a55\u4f30\u6a21\u578b\u7684\u6548\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6548\u80fd\u8a55\u4f30\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5c07 k \u6b21\u8fed\u4ee3\u5f97\u5230\u7684\u6548\u80fd\u8a55\u4f30\u7d50\u679c\uff08\u4f8b\u5982\u6e96\u78ba\u5ea6\u3001\u7cbe\u78ba\u5ea6\u3001\u53ec\u56de\u7387\u7b49\uff09\u9032\u884c\u5e73\u5747\uff0c\u5f97\u5230\u6700\u7d42\u7684\u6548\u80fd\u4f30\u8a08\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>k-fold cross-validation \u7684\u512a\u9ede\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u66f4\u53ef\u9760\u7684\u6548\u80fd\u4f30\u8a08\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u901a\u904e\u591a\u6b21\u8fed\u4ee3\uff0c\u53ef\u4ee5\u66f4\u5168\u9762\u5730\u8a55\u4f30\u6a21\u578b\u5728\u4e0d\u540c\u6578\u64da\u5b50\u96c6\u4e0a\u7684\u8868\u73fe\uff0c\u6e1b\u5c11\u55ae\u6b21\u96a8\u6a5f\u5206\u5272\u5e36\u4f86\u7684\u504f\u5dee\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5145\u5206\u5229\u7528\u6578\u64da\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u500b\u6578\u64da\u6a23\u672c\u90fd\u6703\u88ab\u7528\u65bc\u8a13\u7df4\u548c\u9a57\u8b49\uff0c\u5145\u5206\u5229\u7528\u6709\u9650\u7684\u6578\u64da\u8cc7\u6e90\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6e1b\u5c11\u904e\u5ea6\u64ec\u5408\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u901a\u904e\u5728\u4e0d\u540c\u7684\u9a57\u8b49\u96c6\u4e0a\u8a55\u4f30\u6a21\u578b\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u548c\u907f\u514d\u904e\u5ea6\u64ec\u5408\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>k \u7684\u9078\u64c7\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>k \u7684\u9078\u64c7\u6703\u5f71\u97ff\u4ea4\u53c9\u9a57\u8b49\u7684\u7d50\u679c\u3002<\/li>\n\n\n\n<li>\u5e38\u7528\u7684 k \u503c\u5305\u62ec 5 \u548c 10\u3002<\/li>\n\n\n\n<li>\u8f03\u5c0f\u7684 k \u503c\u53ef\u80fd\u5c0e\u81f4\u8f03\u9ad8\u7684\u504f\u5dee\uff0c\u800c\u8f03\u5927\u7684 k \u503c\u53ef\u80fd\u5c0e\u81f4\u8f03\u9ad8\u7684\u65b9\u5dee\u3002<\/li>\n\n\n\n<li>\u300c\u7559\u4e00\u6cd5\u4ea4\u53c9\u9a57\u8b49\u300d\uff08LOOCV\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684 k-fold cross-validation\uff0c\u5176\u4e2d k \u7b49\u65bc\u6578\u64da\u96c6\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>k-fold cross-validation\uff08k \u6298\u4ea4\u53c9\u9a57\u8b49\uff09\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u7d71\u8a08\u5b78\u65b9\u6cd5\uff0c\u7528\u65bc\u8a55\u4f30\u6a5f\u5668\u5b78\u7fd2\u6a21\u578b\u7684\u6548\u80fd\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u6709\u9650\u7684\u6578\u64da\u96c6\u4e0a\uff0c\u66f4\u53ef\u9760\u5730\u4f30\u8a08\u6a21\u578b\u5728\u672a\u77e5\u6578\u64da\u4e0a\u7684\u8868\u73fe\uff0c\u6e1b\u5c11\u904e\u5ea6\u64ec\u5408\u7684\u98a8\u96aa\u3002 \u4ee5\u4e0b\u662f k-fold cross-validation \u7684\u904b\u4f5c\u65b9\u5f0f\uff1a k-fold cross-validation \u7684\u512a\u9ede\uff1a k \u7684\u9078\u64c7\uff1a<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"googlesitekit_rrm_CAowvqSiDA:productID":"","footnotes":""},"class_list":["post-4883","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/pages\/4883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/comments?post=4883"}],"version-history":[{"count":0,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/pages\/4883\/revisions"}],"wp:attachment":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/media?parent=4883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}