{"id":4499,"date":"2019-06-25T22:57:43","date_gmt":"2019-06-25T14:57:43","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4499"},"modified":"2019-06-25T22:57:43","modified_gmt":"2019-06-25T14:57:43","slug":"%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0-%e9%99%8d%e7%bb%b4%e7%ae%97%e6%b3%95-pca","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4499.html","title":{"rendered":"\u673a\u5668\u5b66\u4e60-\u964d\u7ef4\u7b97\u6cd5-PCA"},"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>\u6700\u8fd1\u5728\u770b\u300a\u7279\u5f81\u5de5\u7a0b\u5165\u95e8\u4e0e\u5b9e\u8df5\u300b\u548c\u300a\u673a\u5668\u5b66\u4e60\u5b9e\u6218\u300b\u8fd92\u672c\u4e66\uff0c\u867d\u7136\u8fd92\u672c\u4e66\u5df2\u7ecf\u662f\u504f\u5b9e\u6218\u7684\u4e86\uff0c\u4f46\u91cc\u9762\u8fd8\u662f\u4e0d\u53ef\u907f\u514d\u7684\u4f1a\u6709\u4e00\u4e9b\u6570\u5b66\u539f\u7406\u65b9\u9762\u7684\u4ecb\u7ecd\u3002\u8003\u8651\u5230\u51e0\u4e2a\u65b9\u9762\uff1a1.\u6211\u5e76\u4e0d\u662f\u4e13\u4e1a\u7684\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u5de5\u7a0b\u5e08\uff0c\u5f88\u591a\u65f6\u5019\u53ea\u9700\u8981\u77e5\u9053\u600e\u4e48\u505a\uff0c\u4ee5\u53ca\u5927\u6982\u4e3a\u4ec0\u4e48\u8981\u8fd9\u4e48\u505a\u5c31\u884c\uff1b2.\u6bd5\u4e1a\u4e5f\u6bd4\u8f83\u4e45\u4e86\uff0c\u5927\u5b66\u91cc\u5b66\u7684\u7ebf\u6027\u4ee3\u6570\u548c\u77e9\u9635\u53d8\u6362\u76f8\u5173\u7684\u77e5\u8bc6\u65e9\u5c31\u5fd8\u6ca1\u4e86\u3002\u6240\u4ee5\uff0c\u5728\u770b\u5176\u4e2d\u7684\u4e00\u4e9b\u5185\u5bb9\u65f6\uff0c\u6211\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\">1. \u7ef4\u6570\u707e\u96be\uff08Curse of dimensionality\uff09<\/h6>\n\n\n\n<p><strong>\u7ef4\u6570\u707e\u96be\u5c31\u662f\u8bf4\u5f53\u6837\u672c\u7684\u7ef4\u6570\u589e\u52a0\u65f6\uff0c\u82e5\u8981\u4fdd\u6301\u4e0e\u4f4e\u7ef4\u60c5\u5f62\u4e0b\u76f8\u540c\u7684\u6837\u672c\u5bc6\u5ea6\uff0c\u6240\u9700\u8981\u7684\u6837\u672c\u6570\u5448\u6307\u6570\u578b\u589e\u957f\u3002<\/strong>\u5f53\u7ef4\u5ea6\u5f88\u5927\u6837\u672c\u6570\u91cf\u5c11\u65f6\uff0c\u65e0\u6cd5\u901a\u8fc7\u5b83\u4eec\u5b66\u4e60\u5230\u6709\u4ef7\u503c\u7684\u77e5\u8bc6\uff1b\u6240\u4ee5\u9700\u8981\u964d\u7ef4\uff0c\u4e00\u65b9\u9762\u5728\u635f\u5931\u7684\u4fe1\u606f\u91cf\u53ef\u4ee5\u63a5\u53d7\u7684\u60c5\u51b5\u4e0b\u83b7\u5f97\u6570\u636e\u7684\u4f4e\u7ef4\u8868\u793a\uff0c<strong>\u589e\u52a0\u6837\u672c\u7684\u5bc6\u5ea6<\/strong>\uff1b\u53e6\u4e00\u65b9\u9762\u4e5f\u53ef\u4ee5\u8fbe\u5230<strong>\u53bb\u566a<\/strong>\u7684\u76ee\u7684\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>2.&nbsp;\u6570\u636e\u964d\u7ef4\u7684\u4f5c\u7528<\/strong><\/h6>\n\n\n\n<p>1\u3001\u51cf\u5c11\u5b58\u50a8\u7a7a\u95f4<br>2\u3001\u4f4e\u7ef4\u6570\u636e\u51cf\u5c11\u6a21\u578b\u8bad\u7ec3\u7528\u65f6<br>3\u3001\u4e00\u4e9b\u7b97\u6cd5\u5728\u9ad8\u7ef4\u8868\u73b0\u4e0d\u4f73\uff0c\u964d\u7ef4\u63d0\u9ad8\u7b97\u6cd5\u53ef\u7528\u6027<br>4\u3001\u5220\u9664\u5197\u4f59\u6570\u636e<br>5\u3001\u6709\u52a9\u4e8e\u6570\u636e\u7684\u53ef\u89c6\u5316<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>3.&nbsp;PCA\u4ecb\u7ecd<\/strong><\/h6>\n\n\n\n<p><strong>\u4e3b\u6210\u5206\u5206\u6790\uff08Principal Components Analysis, PCA\uff09\u662f\u4e00\u79cd\u5206\u6790\u3001\u7b80\u5316\u6570\u636e\u96c6\u7684\u6280\u672f\u3002<\/strong>\u4e3b\u6210\u5206\u5206\u6790\u7ecf\u5e38\u7528\u4e8e<strong>\u51cf\u5c11\u6570\u636e\u96c6\u7684\u7ef4\u6570\uff0c\u540c\u65f6\u4fdd\u6301\u6570\u636e\u96c6\u4e2d\u7684\u5bf9\u65b9\u5dee\u8d21\u732e\u6700\u5927\u7684\u7279\u5f81\u3002<\/strong>\u5e38\u5e38\u5e94\u7528\u5728\u6587\u672c\u5904\u7406\u3001\u4eba\u8138\u8bc6\u522b\u3001\u56fe\u7247\u8bc6\u522b\u3001\u81ea\u7136\u8bed\u8a00\u5904\u7406\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\"><strong>\u65b9\u5dee\u7684\u5927\u5c0f\u63cf\u8ff0\u4e00\u4e2a\u53d8\u91cf\u7684\u4fe1\u606f\u91cf<\/strong>\uff0c<strong>\u5bf9\u4e8e\u6a21\u578b\u6765\u8bf4\u65b9\u5dee\u8d8a\u5c0f\u8d8a\u7a33\u5b9a\uff0c\u4f46\u662f\u5bf9\u4e8e\u6570\u636e\u6765\u8bf4\uff0c\u6211\u4eec\u81ea\u7136\u662f\u5e0c\u671b\u6570\u636e\u7684\u65b9\u5dee\u5927\uff0c\u65b9\u5dee\u8d8a\u5927\u8868\u793a\u6570\u636e\u8d8a\u4e30\u5bcc\uff0c\u7ef4\u5ea6\u8d8a\u591a\u3002<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\"><strong>\u65b9\u5dee\u5927\u7684\u65b9\u5411\u662f\u4fe1\u53f7\u7684\u65b9\u5411\uff0c\u65b9\u5dee\u5c0f\u7684\u65b9\u5411\u662f\u566a\u58f0\u7684\u65b9\u5411<\/strong>\uff0c\u6211\u4eec\u5728\u6570\u636e\u6316\u6398\u6a21\u578b\u5904\u7406\u4e2d\uff0c\u5f80\u5f80\u9700\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u5373\u662f\u4fe1\u53f7\u548c\u566a\u58f0\u7684\u6bd4\u4f8b\u3002<\/p>\n\n\n\n<p>\u5f53\u8fdb\u884c\u6570\u636e\u964d\u7ef4\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4e00\u822c\u90fd\u662f\u5bf9\u5217\u8fdb\u884c\u538b\u7f29\uff0c\u5373\u5bf9\u6570\u636e\u7684\u7279\u5f81\u8fdb\u884c\u538b\u7f29\uff0c\u5f53\u7136\u6211\u4eec\u4e5f\u53ef\u4ee5\u5bf9\u6570\u636e\u884c\u8fdb\u884c\u538b\u7f29\uff0c\u5373\u628a\u76f8\u4f3c\u7684\u6570\u636e\u8fdb\u884c\u5408\u5e76\u3002<\/p>\n\n\n\n<p><strong>PCA\u672c\u8d28\u4e0a\u662f\u5c06\u65b9\u5dee\u6700\u5927\u7684\u65b9\u5411\u4f5c\u4e3a\u7b2c\u4e00\u7ef4\u7279\u5f81<\/strong>\uff0c\u65b9\u5dee\u63cf\u8ff0\u7684\u662f\u6570\u636e\u7684\u79bb\u6563\u7a0b\u5ea6\uff0c\u65b9\u5dee\u6700\u5927\u7684\u65b9\u5411\u5373\u662f\u80fd\u6700\u5927\u7a0b\u5ea6\u4e0a\u4fdd\u7559\u6570\u636e\u7684\u5404\u79cd\u7279\u5f81\uff0c<strong>\u63a5\u4e0b\u6765\u7b2c\u4e8c\u7ef4\u7279\u5f81\u65e2\u9009\u62e9\u4e0e\u7b2c\u4e00\u7ef4\u7279\u5f81\u6b63\u4ea4\u7684\u7279\u5f81\uff0c\u7b2c\u4e09\u7ef4\u7279\u5f81\u65e2\u662f\u548c\u7b2c\u4e00\u7ef4\u548c\u7b2c\u4e8c\u7ef4\u6b63\u4ea4\u7684\u7279\u5f81\u3002<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\"><strong>PCA\u7684\u601d\u60f3\u662f\u5c06n\u7ef4\u7279\u5f81\u6620\u5c04\u5230k\u7ef4\u4e0a\uff08k&lt;n\uff09\uff0c\u8fd9k\u7ef4\u662f\u5168\u65b0\u7684\u6b63\u4ea4\u7279\u5f81\u3002\u8fd9k\u7ef4\u7279\u5f81\u79f0\u4e3a\u4e3b\u5143\uff0c\u662f\u91cd\u65b0\u6784\u9020\u51fa\u6765\u7684k\u7ef4\u7279\u5f81\uff0c\u800c\u4e0d\u662f\u7b80\u5355\u5730\u4ecen\u7ef4\u7279\u5f81\u4e2d\u53bb\u9664\u5176\u4f59n-k\u7ef4\u7279\u5f81\u3002<\/strong><\/p>\n\n\n\n<p><strong>\u5927\u81f4\u6d41\u7a0b<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u627e\u51fa\u7b2c\u4e00\u4e2a\u4e3b\u6210\u5206\u7684\u65b9\u5411\uff0c\u4e5f\u5c31\u662f\u6570\u636e\u65b9\u5dee\u6700\u5927\u7684\u65b9\u5411\u3002<\/li><li>\u627e\u51fa\u7b2c\u4e8c\u4e2a\u4e3b\u6210\u5206\u7684\u65b9\u5411\uff0c\u4e5f\u5c31\u662f\u6570\u636e\u65b9\u5dee\u6b21\u5927\u7684\u65b9\u5411\uff0c\u5e76\u4e14\u8be5\u65b9\u5411\u4e0e\u7b2c\u4e00\u4e2a\u4e3b\u6210\u5206\u65b9\u5411\u6b63\u4ea4(\u5982\u679c\u662f\u4e8c\u7ef4\u7a7a\u95f4\u5c31\u53eb\u5782\u76f4)\u3002<\/li><li>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u8ba1\u7b97\u51fa\u6240\u6709\u7684\u4e3b\u6210\u5206\u65b9\u5411\u3002<\/li><li>\u901a\u8fc7\u6570\u636e\u96c6\u7684<strong>\u534f\u65b9\u5dee\u77e9\u9635<\/strong>\u53ca\u5176<strong>\u7279\u5f81\u503c\u5206\u6790<\/strong>\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f97\u5230\u8fd9\u4e9b\u4e3b\u6210\u5206\u7684\u503c\u3002<\/li><li>\u4e00\u65e6\u5f97\u5230\u4e86\u534f\u65b9\u5dee\u77e9\u9635\u7684\u7279\u5f81\u503c\u548c\u7279\u5f81\u5411\u91cf\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4fdd\u7559\u6700\u5927\u7684 N \u4e2a\u7279\u5f81\u3002\u8fd9\u4e9b\u7279\u5f81\u5411\u91cf\u4e5f\u7ed9\u51fa\u4e86 N \u4e2a\u6700\u91cd\u8981\u7279\u5f81\u7684\u771f\u5b9e\u7ed3\u6784\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u5c06\u6570\u636e\u4e58\u4e0a\u8fd9 N \u4e2a\u7279\u5f81\u5411\u91cf \u4ece\u800c\u5c06\u5b83\u8f6c\u6362\u5230\u65b0\u7684\u7a7a\u95f4\u4e0a\u3002<\/li><\/ol>\n\n\n\n<p><strong>\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u8303\u56f4<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u4f18\u70b9\uff1a\u964d\u4f4e\u6570\u636e\u7684\u590d\u6742\u6027\uff0c\u8bc6\u522b\u6700\u91cd\u8981\u7684\u591a\u4e2a\u7279\u5f81\u3002<\/strong><\/li><li>\u7f3a\u70b9\uff1a\u4e0d\u4e00\u5b9a\u9700\u8981\uff0c\u4e14\u53ef\u80fd\u635f\u5931\u6709\u7528\u4fe1\u606f\u3002<\/li><li><strong>\u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a\u6570\u503c\u578b\u6570\u636e\u3002<\/strong><\/li><\/ul>\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><strong>\u4e3b\u6210\u5206\u5206\u6790\uff08PCA\uff09\u539f\u7406\u603b\u7ed3<\/strong><br><a href=\"https:\/\/www.cnblogs.com\/pinard\/p\/6239403.html\">https:\/\/www.cnblogs.com\/pinard\/p\/6239403.html<\/a><\/li><li><strong>\u4e00\u7bc7\u6df1\u5165\u5256\u6790PCA\u7684\u597d\u6587 #\u5217\u51fa\u6765\u7684\u300c\u95ee\u9898\u300d\u5f88\u597d\uff0c\u5bb9\u6613\u7406\u89e3<\/strong><br><a href=\"https:\/\/www.cnblogs.com\/hadoop2015\/p\/7419087.html\">https:\/\/www.cnblogs.com\/hadoop2015\/p\/7419087.html<\/a><br><a href=\"https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/18\/2020209.html\">https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/18\/2020209.html<\/a><br><a href=\"https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/18\/2020216.html\">https:\/\/www.cnblogs.com\/jerrylead\/archive\/2011\/04\/18\/2020216.html<\/a><\/li><li>PCA (\u4e3b\u6210\u5206\u5206\u6790\u964d\u7ef4\u7b97\u6cd5)<br><a href=\"https:\/\/imyong.top\/2018\/04\/04\/PCA\/\">https:\/\/imyong.top\/2018\/04\/04\/PCA\/<\/a><\/li><li>PCA\uff08\u4e3b\u6210\u5206\u5206\u6790\uff09<br><a href=\"https:\/\/yoyoyohamapi.gitbooks.io\/mit-ml\/content\/%E7%89%B9%E5%BE%81%E9%99%8D%E7%BB%B4\/articles\/PCA.html\">https:\/\/yoyoyohamapi.gitbooks.io\/mit-ml\/content\/%E7%89%B9%E5%BE%81%E9%99%8D%E7%BB%B4\/articles\/PCA.html<\/a><\/li><li><strong>\u72ec\u7acb\u6210\u5206\u5206\u6790 ( ICA ) \u4e0e\u4e3b\u6210\u5206\u5206\u6790 ( PCA ) \u7684\u533a\u522b\u5728\u54ea\u91cc\uff1f<\/strong><br><a href=\"https:\/\/www.zhihu.com\/question\/28845451\">https:\/\/www.zhihu.com\/question\/28845451<\/a><\/li><li>\u673a\u5668\u5b66\u4e60 \u2014\u2014 \u57fa\u7840\u6574\u7406\uff08\u56db\uff09\u7279\u5f81\u63d0\u53d6\u4e4b\u7ebf\u6027\u65b9\u6cd5\uff1a\u4e3b\u6210\u5206\u5206\u6790PCA\u3001\u72ec\u7acb\u6210\u5206\u5206\u6790ICA\u3001\u7ebf\u6027\u5224\u522b\u5206\u6790LDA<br><a href=\"https:\/\/www.cnblogs.com\/Determined22\/p\/6357291.html\">https:\/\/www.cnblogs.com\/Determined22\/p\/6357291.html<\/a><\/li><li><strong>\u4e00\u6b65\u6b65\u6559\u4f60\u8f7b\u677e\u5b66\u4e3b\u6210\u5206\u5206\u6790PCA\u964d\u7ef4\u7b97\u6cd5<\/strong><br><a href=\"http:\/\/www.52nlp.cn\/10738-2\">http:\/\/www.52nlp.cn\/10738-2<\/a><\/li><li>\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u6570\u5b66(4)-\u7ebf\u6027\u5224\u522b\u5206\u6790\uff08LDA\uff09, \u4e3b\u6210\u5206\u5206\u6790(PCA)<br><a href=\"https:\/\/www.cnblogs.com\/LeftNotEasy\/archive\/2011\/01\/08\/lda-and-pca-machine-learning.html\">https:\/\/www.cnblogs.com\/LeftNotEasy\/archive\/2011\/01\/08\/lda-and-pca-machine-learning.html<\/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><li>\u628a\u51e0\u4e2a\u964d\u7ef4\u7684\u7b97\u6cd5\uff08FA PCA SVD ICA LPP LDA \uff09\u5f52\u7eb3\u4e00\u4e0b<br><a href=\"https:\/\/blog.csdn.net\/qiusuoxiaozi\/article\/details\/50810521\">https:\/\/blog.csdn.net\/qiusuoxiaozi\/article\/details\/50810521<\/a><\/li><li>\u3010\u673a\u5668\u5b66\u4e60\u3011PCA\u4e0eICA\uff0cRCA\uff0cLDA<br><a href=\"https:\/\/blog.csdn.net\/duxinyuhi\/article\/details\/53484193\">https:\/\/blog.csdn.net\/duxinyuhi\/article\/details\/53484193<\/a><\/li><li>\u964d\u7ef4\u7b97\u6cd5\u539f\u7406\u7bc7\uff1a\u4e3b\u6210\u5206\u5206\u6790PCA\u3001\u5947\u5f02\u503c\u5206\u89e3SVD\u3001\u56e0\u5b50\u5206\u6790\u6cd5FA\u3001\u72ec\u7acb\u6210\u5206\u5206\u6790ICA\u7b49\u539f\u7406\u8be6\u63a8<br><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/51124752\">https:\/\/zhuanlan.zhihu.com\/p\/51124752<\/a><\/li><li>Dimension reduction:ICA<br><a href=\"https:\/\/lbxc.iteye.com\/blog\/1521140\">https:\/\/lbxc.iteye.com\/blog\/1521140<\/a><\/li><li>PCA\u4e3b\u6210\u5206\u5206\u6790 ICA\u72ec\u7acb\u6210\u5206\u5206\u6790 LDA\u7ebf\u6027\u5224\u522b\u5206\u6790 SVD\u6027\u8d28<br><a href=\"https:\/\/www.cnblogs.com\/34fj\/p\/8592827.html\">https:\/\/www.cnblogs.com\/34fj\/p\/8592827.html<\/a><\/li><li>\u673a\u5668\u5b66\u4e60\u964d\u7ef4\u4e4b\u4e3b\u6210\u5206\u5206\u6790(PCA)<br><a href=\"https:\/\/blog.csdn.net\/XiaoYi_Eric\/article\/details\/85410753\">https:\/\/blog.csdn.net\/XiaoYi_Eric\/article\/details\/85410753<\/a><\/li><li>PCA\u4e3b\u6210\u5206\u5206\u6790\u5b66\u4e60\u603b\u7ed3<br><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/32412043\">https:\/\/zhuanlan.zhihu.com\/p\/32412043<\/a><\/li><\/ul>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u6700\u8fd1\u5728\u770b\u300a\u7279\u5f81\u5de5\u7a0b\u5165\u95e8\u4e0e\u5b9e\u8df5\u300b\u548c\u300a\u673a\u5668\u5b66\u4e60\u5b9e\u6218\u300b\u8fd92\u672c\u4e66\uff0c\u867d\u7136\u8fd92\u672c\u4e66\u5df2\u7ecf\u662f\u504f\u5b9e\u6218\u7684\u4e86 [&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":[1441,1443,9,1444],"class_list":["post-4499","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-1275","tag-machinelearning","tag-pca","tag-9","tag-1444"],"views":2619,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4499","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=4499"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4499\/revisions"}],"predecessor-version":[{"id":4501,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4499\/revisions\/4501"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4499"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4499"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}