{"id":4500,"date":"2019-06-27T21:43:28","date_gmt":"2019-06-27T13:43:28","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4500"},"modified":"2019-06-27T21:43:28","modified_gmt":"2019-06-27T13:43:28","slug":"%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0-%e5%a5%87%e5%bc%82%e5%80%bc%e5%88%86%e8%a7%a3svd","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4500.html","title":{"rendered":"\u673a\u5668\u5b66\u4e60-\u5947\u5f02\u503c\u5206\u89e3SVD"},"content":{"rendered":"\n<p>=Start=<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n\n\n\n<p>\u5bf9\u4e8e\u6700\u8fd1\u5728\u770b\u5176\u4e2d\u7684\u4e00\u4e9b\u673a\u5668\u5b66\u4e60\u76f8\u5173\u7684\u5185\u5bb9\u65f6\uff0c\u6682\u65f6\u53ea\u5173\u5fc3\u5176\u5927\u81f4\u7684\u539f\u7406\u8bf4\u660e\u548c\u76f8\u5173\u5bf9\u6bd4\uff0c\u5bf9\u4e8e\u6570\u5b66\u7684\u63a8\u5bfc\u548c\u7ec6\u8282\u5148\u653e\u5230\u4e00\u8fb9\uff0c\u4ee5\u540e\u5982\u679c\u6709\u673a\u4f1a\u7684\u8bdd\u518d\u505a\u4e86\u89e3\uff0c\u8fd9\u91cc\u5148\u8bb0\u5f55\u4e00\u4e9b\uff08\u4ece\u5176\u5b83\u6bd4\u8f83\u597d\u7684\u4e66\u7c4d\u3001\u6587\u7ae0\u4e2d\uff09\u6574\u7406\u51fa\u7684\u7ed3\u8bba\u548c\u7279\u70b9\u8bf4\u660e\uff0c\u65b9\u4fbf\u5feb\u901f\u7406\u89e3\u52a0\u6df1\u5370\u8c61\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>\u6458\u8981<\/strong><\/h6>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\"><strong>SVD(Singular Value Decomposition, \u5947\u5f02\u503c\u5206\u89e3)\u662f\u7ebf\u6027\u4ee3\u6570\u4e2d\u65e2\u4f18\u96c5\u53c8\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5b83\u63ed\u793a\u4e86\u77e9\u9635\u6700\u672c\u8d28\u7684\u53d8\u6362\u3002<\/strong><strong>\u4f7f\u7528SVD\u5bf9\u77e9\u9635\u8fdb\u884c\u5206\u89e3\uff0c\u80fd\u5f97\u5230\u4ee3\u8868\u77e9\u9635\u6700\u672c\u8d28\u53d8\u5316\u7684\u77e9\u9635\u5143\u7d20\u3002<\/strong>\u8fd9\u5c31\u597d\u6bd4\u4e00\u4e2a\u5408\u6570\u80fd\u8868\u793a\u4e3a\u82e5\u5e72\u8d28\u6570\u4e4b\u79ef\uff0c\u5206\u89e3\u5408\u6570\u80fd\u5f97\u5230\u8868\u793a\u8be5\u5408\u6570\u7684\u8d28\u56e0\u6570\uff1b\u590d\u6742\u5468\u671f\u4fe1\u53f7\u53ef\u4ee5\u8868\u793a\u4e3a\u82e5\u5e72\u7b80\u5355\u7684\u6b63\u5f26\u6ce2\u548c\u4f59\u5f26\u6ce2\u4e4b\u548c\uff0c\u4f7f\u7528\u5085\u91cc\u53f6\u53d8\u6362\u80fd\u5f97\u5230\u8868\u793a\u8be5\u4fe1\u53f7\u7684\u7b80\u5355\u6ce2\uff1b\u590d\u6742\u77e9\u9635\u6240\u4ee3\u8868\u7684\u7ebf\u6027\u53d8\u6362\u53ef\u7531\u82e5\u5e72\u4e2a\u7b80\u5355\u77e9\u9635\u6240\u4ee3\u8868\u7684\u7ebf\u6027\u53d8\u6362\u7ec4\u5408\u8d77\u6765\uff0c\u4f7f\u7528SVD\u80fd\u627e\u5230\u8fd9\u4e9b\u7b80\u5355\u77e9\u9635\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>SVD\u7684\u5177\u4f53\u5e94\u7528<\/strong><\/h6>\n\n\n\n<p>\u9664\u4e86\u524d\u6587\u6240\u8ff0\uff0c<strong>SVD\u63ed\u793a\u4e86\u77e9\u9635\u8fdb\u884c\u7ebf\u6027\u53d8\u6362\u65f6\u6700\u672c\u8d28\u7684\u53d8\u6362<\/strong>\uff0c\u4f7f\u6211\u4eec\u80fd\u4e86\u89e3\u77e9\u9635\u7684\u5177\u4f53\u64cd\u4f5c\uff0c\u8fd9\u662fSVD\u6700\u76f4\u63a5\u7684\u5e94\u7528\u3002\u9664\u6b64\u4e4b\u5916\uff0cSVD\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u65b9\u9762\u7684\u5e94\u7528\uff0c\u4e0b\u9762\u4e3e\u4f8b\u8bf4\u660e.<\/p>\n\n\n\n<p><strong>\u538b\u7f29<\/strong><\/p>\n\n\n\n<p><strong>\u8bb8\u591a\u5b58\u50a8\u5728\u8ba1\u7b97\u673a\u4e2d\u7684\u6570\u636e\u90fd\u662f\u4ee5\u77e9\u9635\u7684\u5f62\u5f0f\u5b58\u5728\u7684\uff0c\u8fdb\u884c\u5408\u7406\u7684\u77e9\u9635\u538b\u7f29\u80fd\u628a\u5b58\u50a8\u77e9\u9635\u6240\u5360\u7684\u7a7a\u95f4\u7f29\u51cf\u4e0b\u6765\u3002<\/strong>\u4f8b\u5982\u56fe\u50cf\uff0c\u4e8b\u5b9e\u4e0a\u4e00\u4e2a\u7070\u5ea6\u56fe\u50cf\u5c31\u662f\u4e00\u4e2a\u77e9\u9635\uff0c\u77e9\u9635\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5c31\u662f\u7070\u5ea6\u56fe\u50cf\u7684\u50cf\u7d20\u503c.<\/p>\n\n\n\n<p><strong>\u964d\u7ef4<\/strong><\/p>\n\n\n\n<p>\u6570\u636e\u964d\u7ef4\u5728\u673a\u5668\u5b66\u4e60\uff0c\u6570\u636e\u6316\u6398\u7b49\u9886\u57df\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6280\u672f\uff0c<strong>\u901a\u8fc7\u6570\u636e\u964d\u7ef4\u53ef\u4ee5\u6316\u6398\u6570\u636e\u7684\u5173\u952e\u4fe1\u606f\uff0c\u964d\u4f4e\u8fd0\u7b97\u7684\u6210\u672c\u3002<\/strong>\u4f7f\u7528SVD\u8fdb\u884c\u964d\u7ef4\u7684\u6838\u5fc3\u601d\u60f3\u662f\uff0c\u901a\u8fc7\u5bf9feature\u5411\u91cf(\u5982\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u6570\u636e\u5411\u91cf)\u6240\u7ec4\u6210\u7684\u77e9\u9635X\u8fdb\u884c\u5206\u89e3\uff0c\u53ef\u76f4\u63a5\u5f97\u5230\u964d\u7ef4\u540e\u7684feature\u5411\u91cf\u77e9\u9635\uff0c\u8fd9\u5176\u5b9e\u5c31\u662fPCA(\u4e3b\u6210\u5206\u5206\u6790, Principal component analysis)\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/mp.weixin.qq.com\/s\/LHHJXTgLG3M8oOMy82curQ\"><strong>SVD\u5947\u5f02\u503c\u5206\u89e3\u7684\u6570\u5b66\u6db5\u4e49\u53ca\u5176\u5e94\u7528\u5b9e\u4f8b<\/strong><\/a><br><a href=\"http:\/\/www.tensorinfinity.com\/paper_163.html\">http:\/\/www.tensorinfinity.com\/paper_163.html<\/a><\/li><li>\u30104\u3011\u7279\u5f81\u503c\u5206\u89e3EVD\u4e0e\u5947\u5f02\u503c\u5206\u89e3SVD<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/z9dWwQtELHhrGZ6Y-_L8Ww\">https:\/\/mp.weixin.qq.com\/s\/z9dWwQtELHhrGZ6Y-_L8Ww<\/a><\/li><li>\u673a\u5668\u5b66\u4e60\u964d\u7ef4\u4e4b\u5947\u5f02\u503c\u5206\u89e3(SVD)<br><a href=\"https:\/\/blog.csdn.net\/XiaoYi_Eric\/article\/details\/85559389\">https:\/\/blog.csdn.net\/XiaoYi_Eric\/article\/details\/85559389<\/a><\/li><li>\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u6570\u5b66(5)-\u5f3a\u5927\u7684\u77e9\u9635\u5947\u5f02\u503c\u5206\u89e3(SVD)\u53ca\u5176\u5e94\u7528<br><a href=\"https:\/\/www.cnblogs.com\/LeftNotEasy\/archive\/2011\/01\/19\/svd-and-applications.html\">https:\/\/www.cnblogs.com\/LeftNotEasy\/archive\/2011\/01\/19\/svd-and-applications.html<\/a><\/li><\/ul>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u5bf9\u4e8e\u6700\u8fd1\u5728\u770b\u5176\u4e2d\u7684\u4e00\u4e9b\u673a\u5668\u5b66\u4e60\u76f8\u5173\u7684\u5185\u5bb9\u65f6\uff0c\u6682\u65f6\u53ea\u5173\u5fc3\u5176\u5927\u81f4\u7684\u539f\u7406\u8bf4\u660e\u548c\u76f8\u5173\u5bf9\u6bd4\uff0c\u5bf9\u4e8e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,1275],"tags":[1442,1446,9,1447],"class_list":["post-4500","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-1275","tag-svd","tag-1446","tag-9","tag-1447"],"views":2435,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=4500"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4500\/revisions"}],"predecessor-version":[{"id":4507,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4500\/revisions\/4507"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}