{"id":18416,"date":"2021-06-15T23:38:40","date_gmt":"2021-06-15T15:38:40","guid":{"rendered":"https:\/\/blog.tibame.com\/?p=18416"},"modified":"2021-06-28T11:43:18","modified_gmt":"2021-06-28T03:43:18","slug":"ai60%e5%95%8f-q30%e4%bb%80%e9%ba%bc%e6%98%af%e7%89%b9%e5%be%b5%e5%b7%a5%e7%a8%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/blog.tibame.com\/?p=18416","title":{"rendered":"\u3010AI60\u554f\u3011Q30\u4ec0\u9ebc\u662f\u7279\u5fb5\u5de5\u7a0b\uff1f"},"content":{"rendered":"\n<p>\u5c0d\u8cc7\u6599\u79d1\u5b78\u5bb6\u4f86\u8aaa\uff0c\u9810\u6e2c\u6a21\u578b\u662f\u4f7f\u7528\u7d71\u8a08\u6a21\u578b\u9810\u6e2c\u672a\u4f86\u7d50\u679c\u7684\u4f5c\u6cd5\uff0c\u73fe\u5728\u5728AI\u9818\u57df\u76f8\u7576\u76db\u884c\u3002\u6210\u529f\u7684\u9810\u6e2c\u6a21\u578b\u7684\u57fa\u790e\uff0c\u5c31\u53eb\u505a\u300c\u7279\u5fb5\u5de5\u7a0b\u300d\uff08Feature Engineering\uff09\uff0c\u5b83\u662f\u8cc7\u6599\u79d1\u5b78\u6d41\u7a0b\u4e2d\u6700\u8017\u8cbb\u6642\u9593\u7684\u6b65\u9a5f\uff0c\u6d89\u53ca\u8a31\u591a\u6e2c\u8a66\u3001\u932f\u8aa4\u3002<\/p>\n\n\n\n<p>\u7279\u5fb5\u5de5\u7a0b\u662f\u5c07\u539f\u59cb\u6578\u64da\u9032\u884c\u4e00\u7cfb\u5217\u8655\u7406\uff0c\u8f49\u7232\u300c\u7279\u5fb5\u300d\uff0c\u66f4\u597d\u8868\u793a\u9810\u6e2c\u6a21\u578b\u8655\u7406\u7684\u5be6\u969b\u554f\u984c\uff0c\u63d0\u5347\u5c0d\u65bc\u672a\u77e5\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002\u7c21\u55ae\u8aaa\uff0c\u5c31\u662f\u5efa\u7acb\u6a21\u578b\u7684\u89c0\u5bdf\u503c\u6216\u7279\u5fb5\uff0c\u662f\u4e00\u500b\u8868\u793a\u548c\u5c55\u73fe\u6578\u64da\u7684\u904e\u7a0b\u3002<\/p>\n\n\n\n<p>\u5982\uff1a\u8a55\u4f30\u60a3\u8005\u7f79\u60a3\u5fc3\u81df\u75c5\u98a8\u96aa\u7684\u4e00\u7a2e\u6a21\u578b\uff0c\u53ef\u5f9e\u4ed6\u5011\u7684\u8eab\u9ad8\u3001\u9ad4\u91cd\u3001\u5e74\u9f61\u3001\u5176\u4ed6\u7279\u5fb5\u5f97\u77e5\uff0c\u4f46\u76f4\u63a5\u4f7f\u7528\u53ef\u7528\u529f\u80fd\u4e26\u662f\u6700\u6709\u6548\u7684\u505a\u6cd5\u3002\u66f4\u6709\u6548\u7684\u65b9\u5f0f\u662f\u8a08\u7b97\u9ad4\u91cd\u8207\u8eab\u9ad8\u7684\u6bd4\u4f8b\uff0c\u5c31\u662fBMI\u3002<\/p>\n\n\n\n<p>\u5f9e\u7d66\u5b9a\u7684\u6578\u64da\u4e2d\uff0c\u5c0e\u51fa\u65b0\u7684\u62bd\u8c61\u7279\u5fb5\u7684\u904e\u7a0b\uff0c\u5c31\u53ef\u4ee5\u8aaa\u662f\u300c\u7279\u5fb5\u5de5\u7a0b\u300d\uff0c\u901a\u5e38\u4f7f\u7528\u8a31\u591a\u6578\u5b78\u3001\u7d71\u8a08\u51fd\u6578\u4f86\u5b8c\u6210\u9019\u500b\u7a31\u70ba\u300c\u8f49\u63db\u300d\u7684\u6b65\u9a5f\u3002\u4e3b\u8981\u7528\u5728\u5c07\u76ee\u6a19\u554f\u984c\u6240\u5728\u7684\u7279\u5b9a\u9818\u57df\u77e5\u8b58\u6216\u81ea\u52d5\u5316\u65b9\u6cd5\u4f86\u751f\u6210\u3001\u63d0\u53d6\u3001\u522a\u9664\u6216\u7d44\u5408\u8b8a\u5316\uff0c\u5f9e\u800c\u5f97\u5230\u7279\u5fb5\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"522\" src=\"https:\/\/blog.wiedu.tw\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-1024x522.png\" alt=\"\" class=\"wp-image-18417\" srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-1024x522.png 1024w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-300x153.png 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-768x392.png 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-1920x980.png 1920w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-1170x597.png 1170w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/week8\u88fd\u5716_\u571630-585x298.png 585w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption> <br \/> \u5716 30-1\u3001<strong>\u9810\u6e2c\u6a21\u578b\u5efa\u7acb\u904e\u7a0b\u5f88\u5927\u7a0b\u5ea6\u4e0a\u4f9d\u8cf4\u65bc\u7279\u5fb5\u5de5\u7a0b<\/strong><br \/> \u8cc7\u6599\u4f86\u6e90\uff1aIBM<\/figcaption><\/figure>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u95dc\u65bc\u300c\u7279\u5fb5\u5b78\u7fd2\u300d\u7684\u516d\u5927\u554f\u984c<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1\u3001\u6a5f\u5668\u5b78\u7fd2\u4e2d\u7684\u7279\u5fb5\uff08Feature\uff09<\/h3>\n\n\n\n<p>\u5728\u6a5f\u5668\u5b78\u7fd2\u548c\u6a21\u578b\u8b58\u5225\u4e2d\uff0c\u7279\u5fb5\u662f\u5728\u89c0\u6e2c\u73fe\u8c61\u4e2d\u7684\u4e00\u7a2e\u7368\u7acb\u3001\u53ef\u6e2c\u91cf\u7684\u5c6c\u6027\u3002<\/p>\n\n\n\n<p>\u800c\u6a21\u578b\u8b58\u5225\u3001\u5206\u985e\u548c\u56de\u6b78\u554f\u984c\u6700\u95dc\u9375\u7684\u4e00\u6b65\uff0c\u662f\u9078\u64c7\u4fe1\u606f\u91cf\u591a\u3001\u6709\u5dee\u7570\u3001\u7368\u7acb\u7684\u7279\u5fb5\u3002\u4e00\u958b\u59cb\u7684\u539f\u59cb\u7279\u5fb5\u6578\u64da\u8cc7\u6599\u96c6\u53ef\u80fd\u592a\u591a\u3001\u8cc7\u8a0a\u96dc\u8ad6\uff0c\u56e0\u6b64\u5728\u6a5f\u5668\u5b78\u7fd2\u7684\u61c9\u7528\u4e2d\uff0c\u9996\u5148\u662f\u9078\u64c7\u7279\u5fb5\u5b50\u96c6\u3001\u5efa\u69cb\u65b0\u7684\u7279\u5fb5\u96c6\uff0c\u4fc3\u9032\u6f14\u7b97\u6cd5\u7684\u5b78\u7fd2\uff0c\u63d0\u9ad8\u6cdb\u5316\u80fd\u529b\u548c\u53ef\u89e3\u91cb\u6027\u3002<\/p>\n\n\n\n<pre class=\"wp-block-verse\">*\u6cdb\u5316\u80fd\u529b Generalization\uff1a\u6211\u5011\u7684\u8a2d\u8a08\u6a21\u578b\u53ef\u61c9\u5c0d\u672a\u4f86\u6578\u64da\uff0c\u4e5f\u5c31\u662f\u53ef\u4ee5\u88ab\u5ee3\u6cdb\u4f7f\u7528\u537b\u4ecd\u5728\u6211\u5011\u6a21\u578b\u7bc4\u570d\u5167\uff0c\u8868\u793a\u5b83\u7684\u9069\u61c9\u6027\u5f88\u597d\u3002<\/pre>\n\n\n\n<p>\u5728\u8868\u683c\u8cc7\u6599\u4e2d\uff0c\u89c0\u6e2c\u6578\u64da\u6216\u5be6\u4f8b\uff0c\u662f\u7531\u4e0d\u540c\u7684\u8b8a\u91cf\u6216\u5c6c\u6027\u800c\u6210\uff0c\u5c6c\u6027\u5c31\u6307\u7279\u5fb5\u3002\u4f46\u662f\u8207\u5c6c\u6027\u6709\u5dee\u7570\uff0c\u7279\u5fb5\u662f\u5c0d\u65bc\u5206\u6790\u548c\u89e3\u6c7a\u554f\u984c\u6709\u7528\u3001\u5177\u6709\u610f\u7fa9\u7684\u5c6c\u6027\u3002\u4e0d\u540c\u7684\u5c6c\u6027\uff0c\u4ee3\u8868\u7684\u7279\u5fb5\u4e5f\u4e0d\u76e1\u76f8\u540c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6a5f\u5668\u8996\u89ba\uff1a\u4e00\u5e45\u5716\u50cf\u662f\u4e00\u500b\u89c0\u6e2c\uff0c\u4f46\u7279\u5fb5\u53ef\u80fd\u662f\u5716\u4e2d\u7684\u4e00\u689d\u7dda<\/li><li>\u81ea\u7136\u8a9e\u8a00\u8655\u7406\uff1a\u4e00\u500b\u6587\u672c\u662f\u4e00\u500b\u89c0\u6e2c\uff0c\u4f46\u5176\u4e2d\u6bb5\u843d\u6216\u8a5e\u5f59\u53ef\u80fd\u662f\u4e00\u7a2e\u7279\u5fb5<\/li><li>\u8a9e\u97f3\u8b58\u5225\uff1a\u4e00\u6bb5\u8a9e\u97f3\u662f\u4e00\u500b\u89c0\u6e2c\uff0c\u4f46\u4e00\u500b\u8a5e\u6216\u97f3\u7bc0\u662f\u4e00\u7a2e\u7279\u5fb5<\/li><\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2\u3001\u7279\u5fb5\u7684\u91cd\u8981\u6027\uff08Feature Importance\uff09<\/h3>\n\n\n\n<p>\u53ef\u4ee5\u5ba2\u89c0\u8a55\u50f9\u7279\u5fb5\u7684\u5be6\u7528\u6027\u3002<\/p>\n\n\n\n<p>\u5224\u5225\u7279\u5fb5\u7684\u91cd\u8981\u6027\u662f\u5c0d\u7279\u5fb5\u9032\u884c\u9078\u64c7\u7684\u9996\u8981\u6307\u6a19\uff0c\u7279\u5fb5\u6703\u6839\u64da\u91cd\u8981\u6027\u88ab\u5206\u914d\u5206\u6578\uff0c\u518d\u6839\u64da\u5206\u6578\u4e0d\u540c\u9032\u884c\u6392\u5e8f\uff0c\u5176\u4e2d\uff0c\u9ad8\u5206\u7684\u7279\u5fb5\u88ab\u9078\u64c7\u51fa\u4f86\u653e\u5165\u8a13\u7df4\u6578\u64da\u96c6\u3002\u82e5\u8207\u9810\u6e2c\u7684\u4e8b\u7269\u9ad8\u5ea6\u76f8\u95dc\uff0c\u9019\u500b\u7279\u5fb5\u53ef\u80fd\u662f\u91cd\u8981\u7684\uff0c\u800c\u76f8\u95dc\u4fc2\u6578\u548c\u7368\u7acb\u8b8a\u91cf\u65b9\u6cd5\u662f\u6700\u5e38\u4f7f\u7528\u7684\u4f5c\u6cd5\u3002<\/p>\n\n\n\n<p>\u5728\u69cb\u5efa\u6a21\u578b\u7684\u904e\u7a0b\u4e2d\uff0c\u4e00\u4e9b\u8907\u96dc\u7684\u9810\u6e2c\u6a21\u578b\u6703\u5728\u6f14\u7b97\u6cd5\u5167\u90e8\u9032\u884c\u7279\u5fb5\u91cd\u8981\u6027\u7684\u8a55\u50f9\u548c\u9078\u64c7\u3002<\/p>\n\n\n\n<p>\u5982\uff1a\u591a\u5143\u81ea\u9069\u61c9\u56de\u6b78\u6a23\u689d\u6cd5\uff08Multivariate Adaptive Regression Splines\uff0cMARS\uff09\u3001\u96a8\u6a5f\u68ee\u6797\uff08Random Forest\uff09\u3001\u68af\u5ea6\u63d0\u5347\u6a5f\uff08Gradient Boosting Machines\uff09\u3002<\/p>\n\n\n\n<p>\u9019\u4e9b\u6a21\u578b\u5728\u6a21\u578b\u6e96\u5099\u968e\u6bb5\u6642\uff0c\u6703\u9032\u884c\u8b8a\u91cf\u91cd\u8981\u6027\u7684\u78ba\u5b9a\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"> 3\u3001\u7279\u5fb5\u63d0\u53d6\uff08Feature Extraction\uff09 <\/h3>\n\n\n\n<p>\u82e5\u5c07\u67d0\u4e9b\u89c0\u6e2c\u6578\u64da\u76f4\u63a5\u5efa\u6a21\uff0c\u4ed6\u7684\u539f\u59cb\u72c0\u614b\u6578\u64da\u592a\u591a\uff0c\u50cf\u662f\u5716\u50cf\u3001\u97f3\u983b\u3001\u6587\u672c\u6578\u64da\uff0c\u82e5\u53ea\u662f\u770b\u4f5c\u8868\u683c\u6578\u64da\uff0c\u5176\u4e2d\u5305\u542b\u6578\u5343\u7b46\u7684\u5c6c\u6027\u3002<\/p>\n\n\n\n<p>\u56e0\u6b21\uff0c\u7279\u5fb5\u63d0\u53d6\u662f\u81ea\u52d5\u5730\u5c0d\u539f\u59cb\u89c0\u6e2c\u964d\u7dad\uff0c\u4f7f\u5176\u7279\u5fb5\u96c6\u5408\u5c0f\u5230\u53ef\u4ee5\u9032\u884c\u5efa\u6a21\u7684\u904e\u7a0b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-verse\">*\u964d\u7dad\uff1a\u6307\u5728\u67d0\u4e9b\u9650\u5b9a\u689d\u4ef6\u4e0b\uff0c\u964d\u4f4e\u96a8\u6a5f\u8b8a\u91cf\u500b\u6578\uff0c\u5f97\u5230\u4e00\u7d44\u300c\u4e0d\u76f8\u95dc\u300d\u4e3b\u8b8a\u91cf\u7684\u904e\u7a0b\u3002<\/pre>\n\n\n\n<p>\u4e0d\u540c\u7684\u6578\u64da\u4f7f\u7528\u4e0d\u540c\u7684\u63d0\u53d6\u65b9\u5f0f\uff0c<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8868\u683c\u5f0f\u6578\u64da\uff1a\u4e3b\u5143\u7d20\u5206\u6790\uff08Principal Component Analysis\uff09\u3001\u7fa4\u96c6\u7b49\u6620\u5c04\u65b9\u6cd5<\/li><li>\u5716\u50cf\u6578\u64da\uff1a\u9032\u884c\u7dda\uff08line\uff09\u6216\u908a\u7de3\uff08edge\uff09\u7684\u63d0\u53d6<\/li><li>\u5716\u50cf\u3001\u8996\u983b\u548c\u97f3\u983b\u6578\u64da\uff1a\u6578\u5b57\u4fe1\u606f\u8655\u7406\u7684\u65b9\u6cd5<\/li><\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4\u3001\u7279\u5fb5\u9078\u64c7\uff08Feature Selection\uff09<\/h3>\n\n\n\n<p>\u4e0d\u540c\u7684\u7279\u5fb5\u5c0d\u6a21\u578b\u7684\u6e96\u78ba\u5ea6\uff0c\u4e5f\u6703\u6709\u4e0d\u540c\u7684\u5f71\u97ff\uff0c\u6709\u4e9b\u7279\u5fb5\u8207\u8981\u89e3\u6c7a\u7684\u554f\u984c\u4e0d\u76f8\u95dc\uff0c\u6709\u4e9b\u7279\u5fb5\u662f\u5197\u8d05\u8cc7\u8a0a\uff0c\u9019\u4e9b\u7279\u5fb5\u90fd\u9700\u8981\u88ab\u79fb\u9664\u3002<\/p>\n\n\n\n<p>\u7279\u5fb5\u9078\u64c7\uff0c\u81ea\u52d5\u9078\u64c7\u51fa\u5c0d\u65bc\u554f\u984c\u6700\u91cd\u8981\u7684\u7279\u5fb5\u5b50\u96c6\u7684\u904e\u7a0b\u3002<\/p>\n\n\n\n<p>\u7279\u5fb5\u9078\u64c7\u6f14\u7b97\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u5f88\u591a\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8a55\u5206\u65b9\u6cd5\u9032\u884c\u6392\u5e8f<\/li><li>\u53cd\u8986\u8a66\u9a57\u641c\u5c0b\u51fa\u7279\u5fb5\u5b50\u96c6\uff0c\u81ea\u52d5\u5275\u5efa\u4e26\u8a55\u4f30\u6a21\u578b\uff0c\u5f97\u5230\u5ba2\u89c0\u7684\u3001\u9810\u6e2c\u6548\u679c\u6700\u597d\u7684\u7279\u5fb5\u5b50\u96c6<\/li><li>\u5c07\u7279\u5fb5\u9078\u64c7\u4f5c\u7232\u6a21\u578b\u7684\u9644\u52a0\u529f\u80fd\uff0c\u5982\uff1a\u9010\u6b65\u56de\u6b78\u6cd5\uff08Stepwise 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srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-1024x922.png 1024w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-300x270.png 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-768x691.png 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-1170x1053.png 1170w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a.png 1200w\" sizes=\"(max-width: 529px) 100vw, 529px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>\u53c3\u8003\u8cc7\u6599<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.ibm.com\/blogs\/research\/2017\/08\/ai-based-automated-feature-engineering\/\">IBM\u2014Removing the hunch in data science with AI-based automated feature engineering<\/a><\/li><li><a 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