\u5176\u6a21\u5757\u5316\u548c\u4e00\u81f4\u7684API\u8bbe\u8ba1\u4f7f\u5f97\u5b83\u975e\u5e38\u9002\u5408\u521d\u5b66\u8005\u548c\u5feb\u901f\u539f\u578b\u5f00\u53d1\u3002<\/strong><\/p>\n<\/p>\n1.2 TensorFlow\u548cKeras<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u6df1\u5ea6\u5b66\u4e60\u4efb\u52a1\uff0cTensorFlow\u548cKeras\u662f\u975e\u5e38\u6d41\u884c\u7684\u9009\u62e9\u3002TensorFlow\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u673a\u5668\u5b66\u4e60\u6846\u67b6\uff0c\u7531Google\u5f00\u53d1\uff0c\u5177\u6709\u5f3a\u5927\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\u3002\u800cKeras\u662f\u4e00\u4e2a\u9ad8\u7ea7API\uff0c\u7b80\u5316\u4e86TensorFlow\u7684\u4f7f\u7528\uff0c\u7279\u522b\u9002\u5408\u4e8e\u5feb\u901f\u6784\u5efa\u548c\u5b9e\u9a8c\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u6570\u636e\u51c6\u5907<\/h2>\n<\/p>\n
\u5728\u8fdb\u884c\u673a\u5668\u5b66\u4e60\u5efa\u6a21\u4e4b\u524d\uff0c\u6570\u636e\u51c6\u5907\u662f\u81f3\u5173\u91cd\u8981\u7684\u4e00\u6b65\u3002\u8fd9\u5305\u62ec\u6570\u636e\u7684\u6536\u96c6\u3001\u6e05\u6d17\u3001\u9884\u5904\u7406\u548c\u7279\u5f81\u5de5\u7a0b\u3002<\/p>\n<\/p>\n
2.1 \u6570\u636e\u6536\u96c6<\/h3>\n<\/p>\n
\u6570\u636e\u6536\u96c6\u662f\u6784\u5efa\u673a\u5668\u5b66\u4e60\u6a21\u578b\u7684\u7b2c\u4e00\u6b65\u3002\u6570\u636e\u53ef\u4ee5\u6765\u81ea\u591a\u79cd\u6765\u6e90\uff0c\u5982\u6570\u636e\u5e93\u3001\u6587\u4ef6\u3001API\u7b49\u3002\u5728\u6536\u96c6\u6570\u636e\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n
2.2 \u6570\u636e\u6e05\u6d17<\/h3>\n<\/p>\n
\u6570\u636e\u6e05\u6d17\u6d89\u53ca\u5904\u7406\u7f3a\u5931\u503c\u3001\u5f02\u5e38\u503c\u548c\u91cd\u590d\u6570\u636e\u3002\u7f3a\u5931\u503c\u53ef\u4ee5\u901a\u8fc7\u5220\u9664\u3001\u586b\u5145\u6216\u63d2\u503c\u7b49\u65b9\u6cd5\u5904\u7406\uff0c\u800c\u5f02\u5e38\u503c\u53ef\u4ee5\u901a\u8fc7\u7edf\u8ba1\u5206\u6790\u6216\u4f7f\u7528\u7bb1\u7ebf\u56fe\u7b49\u65b9\u6cd5\u8bc6\u522b\u5e76\u5904\u7406\u3002<\/strong><\/p>\n<\/p>\n2.3 \u6570\u636e\u9884\u5904\u7406<\/h3>\n<\/p>\n
\u6570\u636e\u9884\u5904\u7406\u5305\u62ec\u6807\u51c6\u5316\u3001\u5f52\u4e00\u5316\u3001\u7f16\u7801\u5206\u7c7b\u53d8\u91cf\u7b49\u3002\u6807\u51c6\u5316\u5c06\u6570\u636e\u7f29\u653e\u5230\u5747\u503c\u4e3a0\uff0c\u65b9\u5dee\u4e3a1\u7684\u5206\u5e03\uff0c\u800c\u5f52\u4e00\u5316\u5c06\u6570\u636e\u7f29\u653e\u52300\u52301\u7684\u8303\u56f4\u5185\u3002\u7f16\u7801\u5206\u7c7b\u53d8\u91cf\u53ef\u4ee5\u4f7f\u7528\u72ec\u70ed\u7f16\u7801\u6216\u6807\u7b7e\u7f16\u7801\u3002<\/p>\n<\/p>\n
2.4 \u7279\u5f81\u5de5\u7a0b<\/h3>\n<\/p>\n
\u7279\u5f81\u5de5\u7a0b\u662f\u901a\u8fc7\u4ece\u539f\u59cb\u6570\u636e\u4e2d\u63d0\u53d6\u6709\u7528\u7279\u5f81\u6765\u63d0\u9ad8\u6a21\u578b\u6027\u80fd\u7684\u8fc7\u7a0b\u3002\u8fd9\u53ef\u4ee5\u5305\u62ec\u7279\u5f81\u9009\u62e9\u3001\u7279\u5f81\u63d0\u53d6\u548c\u7279\u5f81\u751f\u6210\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u9009\u62e9\u548c\u8bad\u7ec3\u6a21\u578b<\/h2>\n<\/p>\n
\u9009\u62e9\u5408\u9002\u7684\u6a21\u578b\u662f\u673a\u5668\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u7684\u91cd\u8981\u6b65\u9aa4\uff0c\u5e38\u89c1\u7684\u6a21\u578b\u7c7b\u578b\u5305\u62ec\u56de\u5f52\u3001\u5206\u7c7b\u548c\u805a\u7c7b\u3002<\/p>\n<\/p>\n
3.1 \u56de\u5f52\u6a21\u578b<\/h3>\n<\/p>\n
\u56de\u5f52\u6a21\u578b\u7528\u4e8e\u9884\u6d4b\u8fde\u7eed\u53d8\u91cf\u3002\u5e38\u89c1\u7684\u56de\u5f52\u6a21\u578b\u5305\u62ec\u7ebf\u6027\u56de\u5f52\u3001\u5cad\u56de\u5f52\u3001Lasso\u56de\u5f52\u7b49\u3002\u9009\u62e9\u6a21\u578b\u65f6\u9700\u8981\u8003\u8651\u6570\u636e\u7684\u5206\u5e03\u548c\u7279\u5f81\u7684\u76f8\u5173\u6027\u3002<\/strong><\/p>\n<\/p>\n3.2 \u5206\u7c7b\u6a21\u578b<\/h3>\n<\/p>\n
\u5206\u7c7b\u6a21\u578b\u7528\u4e8e\u9884\u6d4b\u79bb\u6563\u6807\u7b7e\u3002\u5e38\u89c1\u7684\u5206\u7c7b\u6a21\u578b\u5305\u62ec\u903b\u8f91\u56de\u5f52\u3001\u652f\u6301\u5411\u91cf\u673a\u3001\u968f\u673a\u68ee\u6797\u3001K\u8fd1\u90bb\u7b49\u3002\u5206\u7c7b\u6a21\u578b\u7684\u9009\u62e9\u901a\u5e38\u57fa\u4e8e\u6570\u636e\u7684\u7279\u5f81\u7ef4\u5ea6\u3001\u6837\u672c\u6570\u91cf\u548c\u566a\u58f0\u6c34\u5e73\u3002<\/strong><\/p>\n<\/p>\n3.3 \u805a\u7c7b\u6a21\u578b<\/h3>\n<\/p>\n
\u805a\u7c7b\u6a21\u578b\u7528\u4e8e\u5bf9\u6837\u672c\u8fdb\u884c\u5206\u7ec4\uff0c\u5e38\u89c1\u7684\u805a\u7c7b\u7b97\u6cd5\u5305\u62ecK\u5747\u503c\u805a\u7c7b\u3001\u5c42\u6b21\u805a\u7c7b\u548cDBSCAN\u7b49\u3002\u805a\u7c7b\u7b97\u6cd5\u7684\u9009\u62e9\u901a\u5e38\u53d6\u51b3\u4e8e\u6570\u636e\u7684\u5206\u5e03\u548c\u6240\u9700\u7684\u7fa4\u4f53\u7ed3\u6784\u3002<\/p>\n<\/p>\n
\u56db\u3001\u8bc4\u4f30\u6a21\u578b\u6027\u80fd<\/h2>\n<\/p>\n
\u8bc4\u4f30\u6a21\u578b\u6027\u80fd\u662f\u9a8c\u8bc1\u6a21\u578b\u6709\u6548\u6027\u7684\u91cd\u8981\u6b65\u9aa4\uff0c\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u4ea4\u53c9\u9a8c\u8bc1\u548c\u8bc4\u4f30\u6307\u6807\u3002<\/p>\n<\/p>\n
4.1 \u4ea4\u53c9\u9a8c\u8bc1<\/h3>\n<\/p>\n
\u4ea4\u53c9\u9a8c\u8bc1\u662f\u4e00\u79cd\u8bc4\u4f30\u6a21\u578b\u6027\u80fd\u7684\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u5c06\u6570\u636e\u96c6\u5212\u5206\u4e3a\u591a\u4e2a\u5b50\u96c6\uff0c\u5bf9\u6a21\u578b\u8fdb\u884c\u591a\u6b21\u8bad\u7ec3\u548c\u6d4b\u8bd5\uff0c\u4ee5\u83b7\u5f97\u66f4\u7a33\u5b9a\u7684\u6027\u80fd\u8bc4\u4f30\u7ed3\u679c\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u6709K\u6298\u4ea4\u53c9\u9a8c\u8bc1\u548c\u7559\u4e00\u6cd5\u4ea4\u53c9\u9a8c\u8bc1\u3002<\/p>\n<\/p>\n
4.2 \u8bc4\u4f30\u6307\u6807<\/h3>\n<\/p>\n
\u8bc4\u4f30\u6307\u6807\u7528\u4e8e\u91cf\u5316\u6a21\u578b\u7684\u6027\u80fd\uff0c\u5e38\u89c1\u7684\u6307\u6807\u5305\u62ec\u51c6\u786e\u7387\u3001\u7cbe\u786e\u7387\u3001\u53ec\u56de\u7387\u3001F1\u5206\u6570\u3001\u5747\u65b9\u8bef\u5dee\uff08MSE\uff09\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u8bc4\u4f30\u6307\u6807\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u4efb\u52a1\u548c\u76ee\u6807\u3002<\/strong><\/p>\n<\/p>\n\u4e94\u3001\u8c03\u53c2\u548c\u4f18\u5316<\/h2>\n<\/p>\n
\u8c03\u53c2\u548c\u4f18\u5316\u662f\u63d0\u5347\u6a21\u578b\u6027\u80fd\u7684\u6700\u540e\u4e00\u6b65\uff0c\u8fd9\u5305\u62ec\u9009\u62e9\u5408\u9002\u7684\u8d85\u53c2\u6570\u548c\u4f7f\u7528\u4f18\u5316\u7b97\u6cd5\u3002<\/p>\n<\/p>\n
5.1 \u8d85\u53c2\u6570\u8c03\u4f18<\/h3>\n<\/p>\n
\u8d85\u53c2\u6570\u8c03\u4f18\u662f\u9009\u62e9\u6700\u4f73\u6a21\u578b\u53c2\u6570\u914d\u7f6e\u7684\u8fc7\u7a0b\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u6709\u7f51\u683c\u641c\u7d22\uff08Grid Search\uff09\u548c\u968f\u673a\u641c\u7d22\uff08Random Search\uff09\u3002GridSearchCV\u662fscikit-learn\u4e2d\u63d0\u4f9b\u7684\u4e00\u4e2a\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u81ea\u52a8\u5316\u8d85\u53c2\u6570\u8c03\u4f18\u8fc7\u7a0b\u3002<\/strong><\/p>\n<\/p>\n5.2 \u6a21\u578b\u4f18\u5316<\/h3>\n<\/p>\n
\u6a21\u578b\u4f18\u5316\u6d89\u53ca\u6539\u8fdb\u6a21\u578b\u7ed3\u6784\u548c\u8bad\u7ec3\u8fc7\u7a0b\uff0c\u4ee5\u63d0\u9ad8\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6b63\u5219\u5316\u3001\u8c03\u6574\u5b66\u4e60\u7387\u3001\u589e\u52a0\u6216\u51cf\u5c11\u6a21\u578b\u590d\u6742\u5ea6\u7b49\u65b9\u6cd5\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
\u4f7f\u7528Python\u8fdb\u884c\u673a\u5668\u5b66\u4e60\u6d89\u53ca\u591a\u4e2a\u6b65\u9aa4\uff0c\u4ece\u9009\u62e9\u5408\u9002\u7684\u5e93\u3001\u51c6\u5907\u6570\u636e\u3001\u9009\u62e9\u548c\u8bad\u7ec3\u6a21\u578b\uff0c\u5230\u8bc4\u4f30\u548c\u4f18\u5316\u6a21\u578b\u3002\u6bcf\u4e00\u6b65\u90fd\u9700\u8981\u4ed4\u7ec6\u8003\u8651\u548c\u6267\u884c\uff0c\u4ee5\u786e\u4fdd\u6700\u7ec8\u6784\u5efa\u7684\u6a21\u578b\u5177\u6709\u826f\u597d\u7684\u6027\u80fd\u548c\u6cdb\u5316\u80fd\u529b\u3002<\/strong>\u901a\u8fc7\u4e0d\u65ad\u5730\u5b9e\u8df5\u548c\u5b66\u4e60\uff0c\u80fd\u591f\u66f4\u597d\u5730\u638c\u63e1\u673a\u5668\u5b66\u4e60\u6280\u672f\uff0c\u5e76\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u7528\u8fd9\u4e9b\u77e5\u8bc6\u3002<\/p>\n<\/p>\n\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n Python\u673a\u5668\u5b66\u4e60\u7684\u5165\u95e8\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/strong>
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