{"id":2025,"date":"2024-03-16T05:22:37","date_gmt":"2024-03-15T21:22:37","guid":{"rendered":"https:\/\/infernews.com\/?p=2025"},"modified":"2024-05-23T18:10:11","modified_gmt":"2024-05-23T10:10:11","slug":"tf-idf-%e7%b6%ad%e5%9f%ba%e7%99%be%e7%a7%91%ef%bc%8c%e8%87%aa%e7%94%b1%e7%9a%84%e7%99%be%e7%a7%91%e5%85%a8%e6%9b%b8","status":"publish","type":"post","link":"https:\/\/infernews.com\/blog\/tf-idf-%e7%b6%ad%e5%9f%ba%e7%99%be%e7%a7%91%ef%bc%8c%e8%87%aa%e7%94%b1%e7%9a%84%e7%99%be%e7%a7%91%e5%85%a8%e6%9b%b8\/","title":{"rendered":"tf-idf &#8211; \u7dad\u57fa\u767e\u79d1\uff0c\u81ea\u7531\u7684\u767e\u79d1\u5168\u66f8"},"content":{"rendered":"<div class=\"vlp-link-container vlp-layout-spotlight-clone wp-block-visual-link-preview-link\"><a href=\"https:\/\/zh.wikipedia.org\/wiki\/Tf-idf\" class=\"vlp-link\" title=\"tf-idf - \u7ef4\u57fa\u767e\u79d1\uff0c\u81ea\u7531\u7684\u767e\u79d1\u5168\u4e66\" rel=\"nofollow\" target=\"_blank\"><\/a><div class=\"vlp-layout-zone-main\"><span class=\"vlp-block-0 vlp-link-title\">tf-idf &#8211; \u7ef4\u57fa\u767e\u79d1\uff0c\u81ea\u7531\u7684\u767e\u79d1\u5168\u4e66<\/span><div class=\"vlp-block-1 vlp-link-summary\">tf-idf\uff08\u82f1\u8a9e\uff1aterm frequency\u2013inverse document frequency\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u8cc7\u8a0a\u6aa2\u7d22\u8207\u6587\u672c\u6316\u6398\u7684\u5e38\u7528\u52a0\u6b0a\u6280\u8853\u3002tf-idf\u662f\u4e00\u7a2e\u7d71\u8a08\u65b9\u6cd5\uff0c\u7528\u4ee5\u8a55\u4f30\u4e00\u5b57\u8a5e\u5c0d\u65bc\u4e00\u500b\u6587\u4ef6\u96c6\u6216\u4e00\u500b\u8a9e\u6599\u5eab\u4e2d\u7684\u5176\u4e2d\u4e00\u4efd\u6587\u4ef6\u7684\u91cd\u8981\u7a0b\u5ea6\u3002\u5b57\u8a5e\u7684\u91cd\u8981\u6027\u96a8\u8457\u5b83\u5728\u6587\u4ef6\u4e2d\u51fa\u73fe\u7684\u6b21\u6578\u6210\u6b63\u6bd4\u589e\u52a0\uff0c\u4f46\u540c\u6642\u6703\u96a8\u8457\u5b83\u5728\u8a9e\u6599\u5eab\u4e2d\u51fa\u73fe\u7684\u983b\u7387\u6210\u53cd\u6bd4\u4e0b\u964d\u3002tf-idf\u52a0\u6b0a\u7684\u5404\u7a2e\u5f62\u5f0f\u5e38\u88ab\u641c\u7d22\u5f15\u64ce\u61c9\u7528\uff0c\u4f5c\u70ba\u6587\u4ef6\u8207\u7528\u6236\u67e5\u8a62\u4e4b\u9593\u76f8\u95dc\u7a0b\u5ea6\u7684\u5ea6\u91cf\u6216\u8a55\u7d1a\u3002\u9664\u4e86tf-idf\u4ee5\u5916\uff0c\u4e92\u806f\u7db2\u4e0a\u7684\u641c\u5c0b\u5f15\u64ce\u9084\u6703\u4f7f\u7528\u57fa\u65bc\u9023\u7d50\u5206\u6790\u7684\u8a55\u7d1a\u65b9\u6cd5\uff0c\u4ee5\u78ba\u5b9a\u6587\u4ef6\u5728\u641c\u5c0b\u7d50\u679c\u4e2d\u51fa\u73fe\u7684\u9806\u5e8f\u3002<\/div><div class=\"vlp-block-2 vlp-link-image\"><img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/c\/cd\/Zh_conversion_icon_m.svg\/35px-Zh_conversion_icon_m.svg.png\" style=\"max-width: 1024px; max-height: 1024px\" \/><\/div><\/div><\/div>\n\n<p><img loading=\"lazy\" decoding=\"async\" class=\"pull-right\" src=\"https:\/\/wikimedia.org\/api\/rest_v1\/media\/math\/render\/svg\/a04206a294aef6302438c1f0281a32d55eb17755\" width=\"593\" height=\"173\" \/><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowvqSiDA:productID":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-2025","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/posts\/2025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"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=2025"}],"version-history":[{"count":0,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/posts\/2025\/revisions"}],"wp:attachment":[{"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/media?parent=2025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/categories?post=2025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/infernews.com\/blog\/wp-json\/wp\/v2\/tags?post=2025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}