{"id":118320,"date":"2019-05-22T12:18:34","date_gmt":"2019-05-22T04:18:34","guid":{"rendered":"http:\/\/www.fagao.me\/?p=118320"},"modified":"2019-05-22T12:18:34","modified_gmt":"2019-05-22T04:18:34","slug":"%e6%b7%b1%e5%ba%a6%e5%ad%a6%e4%b9%a0%e5%9c%a8%e6%90%9c%e7%8b%97%e6%97%a0%e7%ba%bf%e6%90%9c%e7%b4%a2%e5%b9%bf%e5%91%8a%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8-2","status":"publish","type":"post","link":"https:\/\/www.fagao.me\/p\/118320.htm","title":{"rendered":"\u6df1\u5ea6\u5b66\u4e60\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u5e7f\u544a\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/2018_007.jpg\" alt=\"\"><\/p>\n<div class=\"articleend\"><\/div>\n<\/p>\n<p><span>\u672c\u6587\u6765\u81ea\u641c\u72d7\u8d44\u6df1\u7814\u7a76\u5458\u8212\u9e4f\u5728\u643a\u7a0b\u6280\u672f\u4e2d\u5fc3\u4e3b\u529e\u7684\u6df1\u5ea6\u5b66\u4e60Meetup\u4e2d\u7684\u4e3b\u9898\u6f14\u8bb2\uff0c\u4ecb\u7ecd\u4e86\u6df1\u5ea6\u5b66\u4e60\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u5e7f\u544a\u4e2d\u7684\u5e94\u7528\u53ca\u6210\u679c\u3002<\/span><\/p>\n<p><span>\u8212\u9e4f<\/span><span><span>\u8001\u5e08\u7684\u5206\u4eab\u53ef\u70b9\u4e0b\u9762\u7684\u89c6\u9891\u770b\u56de\u653e\uff0c\u4e0b\u8f7d\u6f14\u8bb2PPT\u8bf7\u70b9\u51fb<\/span><strong>\u9605\u8bfb\u539f\u6587<\/strong><span>\u3002<\/span><\/span><\/p>\n<p><span><a class=\"tag-links\" href=\"https:\/\/www.fagao.me\/p\/t\/121\">\u641c\u7d22\u5f15\u64ce<\/a>\u5e7f\u544a\u662f\u7528\u6237\u83b7\u53d6\u7f51\u7edc\u4fe1\u606f\u7684\u6e20\u9053\u4e4b\u4e00\uff0c\u540c\u65f6\u4e5f\u662f\u4e92\u8054\u7f51\u6536\u5165\u7684\u6765\u6e90\u4e4b\u4e00\uff0c\u901a\u8fc7\u4f20\u7edf\u7684\u6d45\u5c42\u6a21\u578b\u5bf9\u641c\u7d22\u5e7f\u544a\u8fdb\u884c\u9884\u4f30\u6392\u5e8f\u5df2\u4e0d\u80fd\u6ee1\u8db3\u5e02\u573a\u9700\u6c42\u3002\u8fd1\u5e74\u6765\uff0c\u6df1\u5ea6\u5b66\u4e60\u5728\u5f88\u591a\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u5e76\u5df2\u53d6\u5f97\u8f83\u597d\u7684\u6210\u679c\uff0c\u672c\u6b21\u6f14\u8bb2\u5c31\u662f\u5206\u4eab\u6df1\u5ea6\u5b66\u4e60\u5982\u4f55\u6709\u6548\u7684\u8fd0\u7528\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u5e7f\u544a\u4e2d\u3002<\/span><\/p>\n<p><span>\u672c\u6b21\u5206\u4eab\u4e3b\u8981\u4ecb\u7ecd\u6df1\u5ea6\u5b66\u4e60\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u5e7f\u544a\u4e2d\u6709\u54ea\u4e9b\u5e94\u7528\u573a\u666f\uff0c\u4ee5\u53ca\u5206\u4eab\u4e86\u6211\u4eec\u7684\u4e00\u4e9b\u6210\u679c\uff0c\u91cd\u70b9\u8bb2\u89e3\u4e86\u5982\u4f55\u5b9e\u73b0\u57fa\u4e8e\u591a\u6a21\u578b\u878d\u5408\u7684CTR\u9884\u4f30\uff0c\u4ee5\u53ca\u6a21\u578b\u6548\u679c\u5982\u4f55\u8bc4\u4f30\uff0c\u6700\u540e\u548c\u5927\u5bb6\u63a2\u8ba8DL\u3001CTR \u9884\u4f30\u7684\u7279\u70b9\u53ca\u672a\u6765\u7684\u4e00\u4e9b\u65b9\u5411\u3002<\/span><\/p>\n<p><span><strong><span>\u4e00\u3001\u6df1\u5ea6\u5b66\u4e60\u5728\u641c\u7d22\u5e7f\u544a\u4e2d\u6709\u54ea\u4e9b\u5e94\u7528\u573a\u666f<\/span><\/strong><\/span><\/p>\n<p><span><\/span><span>\u6bd4\u8f83\u5178\u578b\u7684\u6df1\u5ea6\u5b66\u4e60\u5e94\u7528\u573a\u666f\u5305\u62ec\u8bed\u97f3\u8bc6\u522b\u3001\u4eba\u8138\u8bc6\u522b\u3001\u535a\u5955\u7b49\uff0c\u4e5f\u53ef\u4ee5\u5e94\u7528\u4e8e\u641c\u7d22\u5e7f\u544a\u4e2d\u3002\u9996\u5148\u4ecb\u7ecd\u4e0b\u641c\u7d22\u5e7f\u544a\u7684\u57fa\u672c\u67b6\u6784\uff0c\u5982\u4e0b\u56fe\uff1a<\/span><\/p>\n<\/p>\n<p><span><span>\u25b2<\/span>\u9996\u5148\u7528\u6237\u67e5\u8be2\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u67e5\u8be2\u8bcd\u7ed9Bidding Server\u5904\u7406\uff0cBidding Server\u4e3b\u8981\u8d1f\u8d23\u4e1a\u52a1\u903b\u8f91\u3002\u4f8b\u5982\u67d0\u79cd\u5e7f\u544a\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4e0d\u80fd\u5c55\u73b0\uff0c\u6216\u8fd9\u4e2a\u5ba2\u6237\u540c\u4e00\u4e2a\u5e7f\u544a\u5728\u4ec0\u4e48\u65f6\u95f4\u6bb5\u4ec0\u4e48\u5730\u57df\u5c55\u73b0\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Bidding Server\u8bf7\u6c42Retriever Server\uff0cRetriever Server\u4e3b\u8981\u8d1f\u8d23\u53ec\u56de\uff0c\u5e7f\u544a\u5e93\u5f88\u5e9e\u5927\uff08\u641c\u72d7\u7684\u5e7f\u544a\u5e93\u5927\u6982\u5728\u51e0\u5341\u4ebf\u8fd9\u4e2a\u89c4\u6a21\uff09,\u56e0\u4e3a\u6570\u636e\u91cf\u975e\u5e38\u5927\uff0c\u6240\u4ee5\u9700\u8981\u6839\u636e\u4e00\u4e9b\u7b97\u6cd5\u4ece\u4e2d\u627e\u51fa\u548c\u5f53\u524d\u67e5\u8be2\u8bcd\u6700\u76f8\u5173\u7684\u4e00\u6279\u5e7f\u544a,\u8fd9\u5c31\u662fRetriever Server\u505a\u7684\u4e8b\u60c5\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Retriever Server\u5904\u7406\u5b8c\u540e\uff0c\u4f1a\u628a\u8fd9\u4e9b\u6bd4\u8f83\u597d\u7684\u5e7f\u544a\u56de\u4f20\u7ed9Quality Server\uff0cQuality Server\u4e3b\u8981\u8d1f\u8d23\u70b9\u51fb\u7387\u9884\u4f30\u548c\u6392\u5e8f\uff0c\u6b64\u65f6\u7684\u5019\u9009\u96c6\u6570\u91cf\u76f8\u5bf9\u8f83\u5c11\uff0cQuality Server\u4f1a\u91c7\u7528\u590d\u6742\u7684\u7b97\u6cd5\u9488\u5bf9\u6bcf\u6761\u5e7f\u544a\u9884\u4f30\u5b83\u5f53\u524d\u573a\u666f\u7684\u70b9\u51fb\u7387\uff0c\u5e76\u636e\u6b64\u6392\u5e8f\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Quality Server\u5c06\u6392\u5e8f\u7ed3\u679c\u7684top\u56de\u4f20\u7ed9Retriever Server\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Retriever Server\u56de\u4f20\u7ed9Bidding Server\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Bidding Server\u505a\u5c01\u88c5\u6700\u540e\u5c55\u793a\u7ed9\u7528\u6237\u3002<\/span><\/p>\n<p><strong><span>\u4ee5\u4e0a\u8fc7\u7a0b\u4e2d\u53ef\u5e94\u7528\u5230\u6df1\u5ea6\u5b66\u4e60\u7684\u573a\u666f\u5982\u4e0b\uff1a<\/span><\/strong><\/p>\n<\/p>\n<p><span><strong><span>\u4e8c\u3001\u57fa\u4e8e\u591a\u6a21\u578b\u878d\u5408\u7684CTR\u9884\u4f30<\/span><\/strong><\/span><\/p>\n<p><span><strong><span>2.1 CTR\u9884\u4f30\u6d41\u7a0b<\/span><\/strong><\/span><\/p>\n<p><span>CTR\u9884\u4f30\u7684\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/span><\/p>\n<\/p>\n<p><strong><span>1.<\/span><\/strong><span>Data\u662f\u539f\u59cb\u6570\u636e\uff0c\u5305\u62ec\u70b9\u51fb\u53ca\u67e5\u8be2\u65e5\u5fd7\uff0c\u4ece\u8fd9\u4e9b\u539f\u59cb\u6570\u636e\u91cc\u62bd\u51fa\u4e00\u4e9b\u7279\u5f81\u3002<\/span><\/p>\n<p><strong><span>2.<\/span><\/strong><span>Feature\u5305\u62ec\u67e5\u8be2\u7279\u5f81\u3001\u5e7f\u544a\u7279\u5f81\u3001\u5339\u914d\u7279\u5f81\u3002<\/span><\/p>\n<p><span>\u67e5\u8be2\u7279\u5f81\u662f\u548c\u67e5\u8be2\u8bcd\u76f8\u5173\u7684\u7279\u5f81\uff0c\u67e5\u8be2\u53d1\u751f\u7684\u5730\u57df\u3001\u65f6\u95f4\u7b49\u3002\u5e7f\u544a\u7279\u5f81\u662f\u6307\u5e7f\u544a\u672c\u8eab\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\uff1a\u6765\u81ea\u54ea\u4e2a\u5ba2\u6237\uff0c\u662f\u54ea\u4e2a\u884c\u4e1a\u7684\uff0c\u5b83\u7684\u5173\u952e\u8bcd\u662f\u4ec0\u4e48\uff0c\u5b83\u7684\u6807\u9898\u3001\u63cf\u8ff0\u3001\u7f51\u5740\u662f\u4ec0\u4e48\u7b49\u5404\u79cd\u4fe1\u606f\u3002\u5339\u914d\u7279\u5f81\u662f\u6307\u67e5\u8be2\u8bcd\u548c\u5e7f\u544a\u7684\u5339\u914d\u5173\u7cfb\u3002<\/span><\/p>\n<p><strong><span>3.<\/span><\/strong><span>\u7136\u540e\u4f1a\u8fdb\u884c\u6a21\u578b\u7684\u8bad\u7ec3\uff0c\u5305\u62ec\u7ebf\u6027\u548c\u975e\u7ebf\u6027\u3002<\/span><\/p>\n<p><strong><span>4.<\/span><\/strong><span>\u6a21\u578b\u5728\u7ebf\u4e0b\u8bad\u7ec3\u5b8c\u540e\u4f1a\u5230\u7ebf\u4e0a,\u7ebf\u4e0aServer\u4f1a\u5b9e\u65f6\u505a\u7279\u5f81\u62bd\u53d6\u5e76\u9884\u4f30\u3002<\/span><\/p>\n<p><span>\u4f8b\u5982\uff1a\u7ebf\u4e0a\u5b9e\u65f6\u6536\u5230\u67e5\u8be2\u8bf7\u6c42\u540e\uff0c\u5c31\u4f1a\u77e5\u9053\u67e5\u8be2\u8bcd\u662f\u4ec0\u4e48\u3002\u524d\u9762\u8bb2\u7684Retriever server\uff0c\u5b83\u4f1a\u53ec\u56de\u4e00\u7cfb\u5217\u5e7f\u544a\uff0c\u5e76\u62bd\u51fa\u76f8\u5173\u4fe1\u606f\uff0c\u6bd4\u5982\u5e7f\u544a\u7684\u6807\u9898\u3001\u5173\u952e\u8bcd\u3001\u63cf\u8ff0\u7b49\u4fe1\u606f\uff0c\u6709\u4e86\u8fd9\u4e9b\u4fe1\u606f\u540e\u4f1a\u5229\u7528\u52a0\u8f7d\u7684\u6a21\u578b\u7ed9\u51fa\u9884\u4f30CTR\uff0c\u6700\u7ec8\u4f1a\u8fdb\u884cRank\u6392\u5e8f\uff0c\u4ece\u800c\u7b5b\u9009\u51fa\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u4e00\u4e9b\u5e7f\u544a\u8fdb\u884c\u5c55\u793a\u3002<\/span><\/p>\n<p><span><strong><span>2.2 \u7279\u5f81\u8bbe\u8ba1<\/span><\/strong><\/span><\/p>\n<p><span><strong><span>1.\u79bb\u6563\u7279\u5f81<\/span><\/strong><\/span><\/p>\n<p><span>\u79bb\u6563\u7279\u5f81\u662f\u6307\u628a\u4e1c\u897f\u5206\u6563\u51fa\u6765\u8868\u793a\uff0c\u6bd4\u5982OneHot\uff0c\u975e\u5e38\u76f4\u89c2\uff0c\u4f8b\u5982\u7528\u6237\u5f53\u5929\u6240\u5904\u7684\u65f6\u95f4\u6bb5\uff0c\u4ed6\u548c\u6700\u7ec8\u70b9\u51fb\u7387\u6709\u5173\u7cfb\uff0c\u90a3\u4e48\u6211\u628a\u4e00\u592924\u5c0f\u65f6\u5206\u621024\u4e2a\u70b9\uff0c\u4ed6\u5728\u54ea\u4e2a\u5c0f\u65f6\u5c31\u628a\u54ea\u4e2a\u70b9\u70b9\u4eae\u7f6e1\uff0c\u8fd9\u4e2a\u7279\u5f81\u5c31\u8bbe\u8ba1\u5b8c\u4e86\u3002\u5b83\u7684\u523b\u753b\u6bd4\u8f83\u7ec6\u81f4\uff0c\u8bbe\u8ba1\u6bd4\u8f83\u7b80\u5355\uff0c\u4f46\u4ed6\u7684\u7279\u5f81\u975e\u5e38\u7a00\u758f\uff0c\u6211\u4eec\u7ebf\u4e0a\u7279\u5f81\u7a7a\u95f4\u975e\u5e38\u5927\uff0c\u6709\u4e0a\u5341\u4ebf\uff0c\u4f46\u4efb\u4f55\u4e00\u4e2a\u8bf7\u6c42\u573a\u666f\u5230\u6765\uff0c\u5b83\u771f\u6b63\u6709\u6548\u7684\u7279\u5f81\u5927\u6982\u53ea\u6709\u51e0\u767e\u4e2a\uff0c\u7edd\u5927\u90e8\u5206\u90fd\u662f\u7a7a\u7684\u3002\u56e0\u4e3a\u7279\u5f81\u91cf\u975e\u5e38\u5927\uff0c\u4e0d\u80fd\u8bbe\u8ba1\u592a\u590d\u6742\u7684\u6a21\u578b\uff0c\u5426\u5219\u65e0\u6cd5\u7528\u4e8e\u7ebf\u4e0a\u3002<\/span><\/p>\n<p><strong><span>\u79bb\u6563\u7279\u5f81\u603b\u7ed3\uff1a\u5bb9\u6613\u8bbe\u8ba1\uff0c\u523b\u753b\u7ec6\u81f4\uff0c\u7279\u5f81\u7a00\u758f\uff0c\u7279\u5f81\u91cf\u5de8\u5927\uff0c\u6a21\u578b\u590d\u6742\u5ea6\u53d7\u9650\u3002<\/span><\/strong><\/p>\n<p><span><strong><span>2.\u8fde\u7eed\u7279\u5f81<\/span><\/strong><\/span><\/p>\n<p><span>\u8fd8\u662f\u4ee5\u65f6\u95f4\u4e3e\u4f8b\uff0c\u79bb\u6563\u7279\u5f81\u4f1a\u628a\u5b83\u53d8\u621024\u4e2a\u70b9\uff0c\u8fde\u7eed\u7279\u5f81\u5c31\u4f1a\u53d8\u6210\u4e00\u4e2a\u503c\uff0c\u6bd4\u59821\u30012\u30013\u30014\u30015\u4e00\u76f4\u523024\uff0c\u5b83\u53ea\u4f1a\u5360\u4e00\u4e2a\u4f4d\u7f6e\u3002\u9700\u8981\u4ed4\u7ec6\u8bbe\u8ba1\uff0c\u5f88\u96be\u627e\u5230\u4e00\u4e2a\u76f4\u63a5\u7684\u65b9\u6cd5\u6765\u63cf\u8ff0\u67e5\u8be2\u8bcd\u4e2d\u5305\u62ec\u54ea\u4e9b\u4e1c\u897f\u3002\u5b83\u662f\u5b9a\u957f\u7684\uff0c\u6240\u4ee5\u4e00\u4e2a\u8bf7\u6c42\u573a\u666f\u5230\u6765\uff0c\u5b83\u6709\u591a\u5c11\u7279\u5f81\u662f\u56fa\u5b9a\u7684\u3002\u4e0d\u50cf\u79bb\u6563\u7279\u5f81\u662f\u4e0d\u5b9a\u957f\uff0c\u67e5\u8be2\u8bcd\u4e0d\u4e00\u6837\uff0c\u6709\u7684\u662f\u4e24\u4e2a\u7279\u5f81\u6216\u4e09\u4e2a\u7279\u5f81\uff0c\u5bf9\u4e8e\u7279\u5f81\u70b9\u53ef\u80fd\u6709\u4e24\u4e2a\u6216\u4e09\u4e2a\uff0c\u8fd9\u5bf9\u4e8e\u6211\u4eec\u540e\u9762\u7684\u5de5\u4f5c\u4e5f\u6709\u4e00\u5b9a\u7684\u5f71\u54cd\u3002\u8fde\u7eed\u7279\u5f81\u6bd4\u8f83\u7a20\u5bc6\uff0c\u6bcf\u4e2a\u4f4d\u7f6e\u90fd\u4f1a\u6709\u503c\uff0c\u5b83\u7279\u5f81\u91cf\u76f8\u5bf9\u8f83\u5c0f\uff0c\u5982\u679c\u7528\u8fde\u7eed\u7279\u5f81\u8bbe\u8ba1\u7684\u8bdd\u53ef\u80fd\u9700\u8981\u51e0\u767e\u7ef4\u5c31\u53ef\u4ee5\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u6a21\u578b\u6765\u8bad\u7ec3\u3002<\/span><\/p>\n<p><strong><span>\u8fde\u7eed\u7279\u5f81\u603b\u7ed3\uff1a\u9700\u8981\u4ed4\u7ec6\u8bbe\u8ba1\uff0c\u5b9a\u957f\uff0c\u7279\u5f81\u7a20\u5bc6\uff0c\u7279\u5f81\u91cf\u76f8\u5bf9\u8f83\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u6a21\u578b\u8bad\u7ec3\u3002<\/span><\/strong><\/p>\n<p><span><strong><span>2.3 \u6a21\u578b\u7c7b\u522b<\/span><\/strong><\/span><\/p>\n<p><span><strong><span>1.\u7ebf\u6027<\/span><\/strong><\/span><\/p>\n<p><span>\u4f18\u70b9\uff1a\u7b80\u5355\u3001\u5904\u7406\u7279\u5f81\u91cf\u5927\u3001\u7a33\u5b9a\u6027\u597d\uff0c\u7f3a\u70b9\uff1a\u4e0d\u80fd\u5b66\u4e60\u7279\u5f81\u95f4\u7684\u4ea4\u53c9\u5173\u7cfb\uff0c\u9700\u8981\u81ea\u5df1\u53bb\u8bbe\u8ba1\u3002\u6bd4\u8f83\u5178\u578b\u7684\u5982Logistic Regression\uff0c\u6709\u5f00\u6e90\u7684\u5de5\u5177\u5305\uff0c\u90e8\u7f72\u7b80\u5355\u4e14\u6548\u679c\u4e0d\u9519\u3002<\/span><\/p>\n<p><span><strong><span>2.\u975e\u7ebf\u6027<\/span><\/strong><\/span><\/p>\n<p><span>\u4f18\u70b9\uff1a\u80fd\u591f\u5b66\u4e60\u7279\u5f81\u95f4\u975e\u7ebf\u6027\u5173\u7cfb\uff0c\u7f3a\u70b9\uff1a\u6a21\u578b\u590d\u6742\u3001\u8ba1\u7b97\u8017\u65f6\u3002<\/span><\/p>\n<p><span>\u6bd4\u5982LR\u6a21\u578b\u5c31\u7b97\u7279\u5f81\u518d\u591a\uff0c\u5b83\u53ea\u662f\u67e5\u8868\u52a0\u5728\u4e00\u8d77\u505a\u6307\u6570\u8fd0\u7b97\u5c31\u51fa\u6765\u4e86\uff0c\u50cfDNN\u3001GBDT\u5c31\u4f1a\u975e\u5e38\u590d\u6742\uff0c\u5bfc\u81f4\u8ba1\u7b97\u8fc7\u7a0b\u6bd4\u8f83\u6162\u3002<\/span><\/p>\n<p><span>\u603b\u7ed3\uff1aLogistic Regression\u5373\u80fd\u5904\u7406\u8fde\u7eed\u503c\u53c8\u80fd\u5904\u7406\u79bb\u6563\u503c\u3002DNN\u51e0\u4e4e\u4e0d\u80fd\u5904\u7406\u79bb\u6563\u503c\uff0c\u9664\u975e\u505a\u7279\u6b8a\u7684\u9884\u5904\u7406\u3002<\/span><\/p>\n<p><span><strong><span>2.4 \u6a21\u578b\u878d\u5408<\/span><\/strong><\/span><\/p>\n<p><span>\u524d\u9762\u8bb2\u8fc7\u6bcf\u4e2a\u6a21\u578b\u90fd\u6709\u81ea\u5df1\u7684\u7279\u70b9\uff1aLogistic Regression \u5904\u7406\u7279\u5f81\u91cf\u5927\uff0c\u5927\u6982\u57282010\u5e74\u524d\u540e\u5f00\u59cb\u5927\u91cf\u5e94\u7528\u4e8e\u4e1a\u754c\uff0c\u5f88\u96be\u6709\u6a21\u578b\u80fd\u5b8c\u5168\u8d85\u8d8a\u5b83\uff1bDNN\u53ef\u4ee5\u6316\u6398\u539f\u6765\u6ca1\u6709\u7684\u4e1c\u897f\u3002\u6211\u4eec\u5c31\u60f3\u8fd9\u4e24\u4e2a\u6a21\u578b\u80fd\u4e0d\u80fd\u5c06\u4f18\u70b9\u8fdb\u884c\u878d\u5408\uff0c\u626c\u957f\u907f\u77ed\uff0c\u4ece\u800c\u5f97\u5230\u66f4\u597d\u7684\u7ed3\u679c\u3002<\/span><\/p>\n<p><strong><span>\u7b2c\u4e00\u79cd\u65b9\u6848\uff1aCTR Bagging<\/span><\/strong><\/p>\n<p><span>\u6709\u591a\u4e2a\u6a21\u578b\uff0c\u5c06\u591a\u4e2a\u6a21\u578b\u7684\u8f93\u51faCTR\u52a0\u6743\u5e73\u5747\u3002<\/span><\/p>\n<p><span>\u5b9e\u73b0\u65b9\u6cd5\u7b80\u5355\uff0c\u6a21\u578b\u4e4b\u95f4\u4e0d\u4ea7\u751f\u8026\u5408\u3002<\/span><\/p>\n<p><span>\u53ef\u8c03\u53c2\u6570\u6709\u9650\uff0c\u53ea\u80fd\u8c03Bagging\u6743\u91cd\u7684\u53c2\u6570\uff0c\u4e0d\u80fd\u8c03\u5176\u4ed6\u4e1c\u897f\uff0c\u6240\u4ee5\u6539\u8fdb\u7a7a\u95f4\u76f8\u5bf9\u8f83\u5c0f\u3002<\/span><\/p>\n<p><span><strong><span>\u7b2c\u4e8c\u79cd\u65b9\u6848\uff1a\u6a21\u578b\u878d\u5408<\/span><\/strong><\/span><\/p>\n<p><span>\u4efb\u4e00\u6a21\u578b\u7684\u8f93\u51fa\u4f5c\u4e3a\u53e6\u4e00\u6a21\u578b\u7684\u7279\u5f81\u8f93\u5165,\u5f7c\u6b64\u8fdb\u884c\u4ea4\u53c9\u3002<\/span><\/p>\n<p><span>\u5b9e\u73b0\u65b9\u6cd5\u590d\u6742\uff0c\u6a21\u578b\u4e4b\u95f4\u6709\u4f9d\u8d56\u5173\u7cfb\uff0c\u56e0\u4f9d\u8d56\u5173\u7cfb\u590d\u6742\uff0c\u98ce\u9669\u4e5f\u6bd4\u8f83\u9ad8\u3002<\/span><\/p>\n<p><span>\u597d\u5904\u662f\u5b9e\u9a8c\u65b9\u6848\u8f83\u591a\uff0c\u6539\u8fdb\u7a7a\u95f4\u8f83\u5927\u3002<\/span><\/p>\n<p><span>\u6211\u4eec\u9009\u4e86\u540e\u4e00\u79cd\u65b9\u6848\uff0c\u56e0\u4e3a\u5355\u7eafCTR Bagging\u592a\u8fc7\u7b80\u5355\u7c97\u66b4\u4e86\u3002<\/span><\/p>\n<p><span><strong><span>2.5 \u6a21\u578b\u878d\u5408\u7684\u5de5\u7a0b\u5b9e\u73b0<\/span><\/strong><\/span><\/p>\n<p><strong><span>\u76ee\u6807<\/span><\/strong><\/p>\n<p><span>\u25b2<\/span><span><span><\/span>\u53ef\u652f\u6301\u591a\u4e2a\u4e0d\u540c\u6a21\u578b\u7684\u52a0\u8f7d\u548c\u8ba1\u7b97<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u53ef\u652f\u6301\u6a21\u578b\u4e4b\u95f4\u7684\u4ea4\u53c9\u548cCTR\u7684bagging<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u53ef\u901a\u8fc7\u914d\u7f6e\u9879\u968f\u65f6\u8c03\u6574\u6a21\u578b\u878d\u5408\u65b9\u6848<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u590d\u64cd\u4f5c\uff0c\u51cf\u5c11\u65f6\u95f4\u590d\u6742\u5ea6<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u89e3\u51b3\u65b9\u6cd5(\u5f15\u5165ModelFeature\u7684\u6982\u5ff5)<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u6a21\u578b\u672c\u8eab\u4e5f\u770b\u505a\u4e00\u4e2a\u62bd\u8c61\u7279\u5f81<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u6a21\u578b\u7279\u5f81\u4f9d\u8d56\u4e8e\u5176\u4ed6\u7279\u5f81\uff0c\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230\u65b0\u7684\u7279\u5f81<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/2020_002.jpg\" alt=\"\"><\/p>\n<p><span><span>\u25b2<\/span>\u6a21\u578b\u7279\u5f81\u8f93\u51fa\u53ef\u4f5c\u4e3aCTR\uff0c\u4e5f\u53ef\u4f5c\u4e3a\u7279\u5f81\u4e3a\u5176\u4ed6\u6a21\u578b\u4f7f\u7528<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u9650\u5b9aModelFeature\u7684\u8ba1\u7b97\u987a\u5e8f\uff0c\u5373\u53ef\u5b9e\u73b0bagging\u6a21\u578b\u4ea4\u53c9\u7b49\u529f\u80fd<\/span><\/p>\n<p><span><strong><span>2.6 \u6a21\u578b\u878d\u5408<\/span><\/strong><\/span><\/p>\n<p><span>\u6a21\u578b\u878d\u5408\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/span><\/p>\n<\/p>\n<p><span><span>\u25b2<\/span>\u9996\u5148\u7ebf\u4e0b\uff0c\u5c06PV\u3001Click\u3001Session\u505a\u6210\u4e00\u4e2asample\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u7136\u540e\u628asample\u505a\u6210\u7279\u5f81\uff0c\u5305\u62ecOneHot\u3001CTR\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u5206\u522b\u5c06OneHot\u3001CTR\u4f20\u9001\u5230\u5404\u81ea\u6a21\u5757\u7684train\uff0c\u5c31\u4f1a\u5f97\u5230\u76f8\u5e94\u7684\u6a21\u578b\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u7ebf\u4e0a\uff0cBidding Server \u4f1a\u7ecf\u8fc7 Retriever Server\u53ec\u56de\u5e7f\u544a\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u7136\u540e\u4f20\u7ed9Quality Server\u8fdb\u884c\u8ba1\u7b97\uff0c\u5b83\u662f\u901a\u8fc7One Case\u5b58\u50a8\u548c\u8fd9\u4e2a\u67e5\u8be2\u76f8\u5173\u7684\u6240\u6709\u4fe1\u606f\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>Quality Server\u4f1a\u628aOne Case\u91cc\u7684\u4fe1\u606f\u8f6c\u6362\u6210One Hot\u7279\u5f81\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u7136\u540e\u5c06\u7ed3\u679c\u5b58\u5230\u7279\u5f81\u6c60\uff0c\u7279\u5f81\u6c60\u5305\u542b\u6240\u6709\u7279\u5f81\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>LR\u6a21\u578b\u4ece\u7279\u5f81\u6c60\u91cc\u8bfb\u53d6\u6570\u636e\uff0c\u800c\u540e\u8ba1\u7b97\u51faCTR\uff0c\u8fd8\u5305\u62ec\u5176\u4ed6\u589e\u91cf\u4fe1\u606f\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u5c06\u8fd9\u4e9b\u56de\u9001\u5230\u7279\u5f81\u6c60\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>\u6b64\u5916DNN\u6a21\u578b\u4e5f\u4f1a\u8bfb\u53d6\u7279\u5f81\u6c60\u91cc\u7684\u4fe1\u606f\uff0c\u5e76\u5c06\u6700\u7ec8\u8ba1\u7b97\u7ed3\u679c\u56de\u4f20\u7ed9\u7279\u5f81\u6c60\u3002<\/span><\/p>\n<p><span><span>\u25b2<\/span>CTR\u53ef\u4ee5\u4ece\u7279\u5f81\u6c60\u91cc\u76f4\u63a5\u53d6\u51fa\uff0c\u7136\u540e\u8fdb\u884c\u540e\u7eed\u7684\u64cd\u4f5c\u3002<\/span><\/p>\n<p><span>\u6211\u4eec\u53bb\u5e74\u5c06\u8fd9\u5957\u6846\u67b6\u90e8\u7f72\u5230\u7ebf\u4e0a\uff0c\u5e76\u6301\u7eed\u8fdb\u884c\u6539\u8fdb\uff0c\u5728\u7ebf\u4e0a\u8fd0\u884c\u4e86\u534a\u5e74\u591a\uff0c\u57fa\u672c\u80fd\u9002\u7528\u4e8e\u4e1a\u52a1\u7684\u53d1\u5c55\uff1a\u66fe\u7ecf\u4e0a\u7ebf\u4e86LR\u548cDNN\u7684\u4ea4\u53c9\uff0c\u8fd8\u4e0a\u7ebf\u4e86LR\u548cGBDT\u7684\u878d\u5408\u3002GBDT\u4f1a\u5c06\u8fc7\u7a0b\u4fe1\u606f\u56de\u4f20\u7ed9LR,\u7531LR\u5b8c\u6210\u6700\u7ec8\u8f93\u51fa\u3002\u6b64\u67b6\u6784\u7ecf\u8fc7\u751f\u4ea7\u7cfb\u7edf\u7684\u68c0\u9a8c\uff0c\u8fd0\u8f6c\u6b63\u5e38\u3002<\/span><\/p>\n<p><span><strong><span>2.7 \u6a21\u578b\u6548\u679c\u8bc4\u4f30<\/span><\/strong><\/span><\/p>\n<p><span>\u671f\u95f4\u6211\u4eec\u4f1a\u505a\u5f88\u591a\u5b9e\u9a8c\uff0c\u6bd4\u5982DNN\u8bad\u7ec3\u6bd4\u8f83\u8017\u65f6\uff0c\u7ebf\u4e0a\u4e5f\u6bd4\u8f83\u8017\u65f6\uff0c\u56e0\u6b64\u6211\u4eec\u4f1a\u8fdb\u884c\u591a\u79cd\u4f18\u5316\u548c\u8bc4\u4f30\u3002\u90a3\u4e48\u5c31\u6d89\u53ca\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u5982\u4f55\u8bc4\u4f30\u4e00\u4e2a\u6a21\u578b\u7684\u597d\u574f\uff1f\u7ebf\u4e0b\u6307\u6807\u4e3b\u8981\u91c7\u7528AUC,\u5b9a\u4e49\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/p>\n<\/p>\n<p><span>\u6211\u4eec\u6765\u5206\u6790\u4e0b\u8fd9\u4e2a\u56fe\uff0c\u9009\u5b9a\u4e00\u7cfb\u5217\u9608\u503c\u5c06\u5bf9\u5e94\u4e00\u7cfb\u5217\u70b9\u5bf9\uff0c\u5f62\u6210\u4e00\u6761\u66f2\u7ebf\uff0c\u66f2\u7ebf\u4e0b\u65b9\u7684\u9762\u79ef\u603b\u548c\u5c31\u662fAUC\u7684\u503c\uff1a\u7ea2\u7ebf\u5c31\u662f\u7eaf\u968f\u673a\u7684\u7ed3\u679c\uff0c\u5bf9\u5e94\u7684AUC\u662f0.5\uff1b\u6a21\u578b\u8d8a\u597d\uff0c\u66f2\u7ebf\u79bb\u5de6\u4e0a\u89d2\u5c31\u8d8a\u8fd1\u3002\u8fd9\u4e2a\u503c\u5728\u6211\u4eec\u6a21\u578b\u8bc4\u4f30\u91cc\u7528\u5f97\u975e\u5e38\u591a\uff0c\u8be5\u503c\u8003\u5bdf\u7684\u662f\u6a21\u578b\u9884\u4f30\u7684\u6392\u5e8f\u80fd\u529b\uff0c\u5b83\u4f1a\u628a\u6a21\u578b\u9884\u4f30\u6392\u5e8f\u7ed3\u679c\u548c\u5b9e\u9645\u7ed3\u679c\u8fdb\u884c\u6bd4\u5bf9\u8fd0\u7b97\u3002\u8be5\u503c\u5f88\u96be\u4f18\u5316\uff0c\u4e00\u822c\u800c\u8a00\uff0cAUC\u9ad8\uff0c\u6a21\u578b\u7684\u6392\u5e8f\u80fd\u529b\u5c31\u5f3a\u3002<\/span><\/p>\n<p><span>\u7ebf\u4e0b\u6307\u6807AUC\u5f88\u91cd\u8981\uff0c\u4f46\u6211\u4eec\u53d1\u73b0\u5355\u7eaf\u9760\u8fd9\u6307\u6807\u4e5f\u662f\u6709\u95ee\u9898\u7684\uff0c\u4e0d\u4e00\u5b9a\u662f\u6211\u4eec\u7684\u7ebf\u4e0a\u6a21\u578b\u51fa\u4e86\u95ee\u9898\uff0c\u53ef\u80fd\u662f\u5176\u4ed6\u7684\u95ee\u9898\u3002\u505a\u5e7f\u544a\u9884\u4f30\uff0cAUC\u662f\u7ebf\u4e0b\u6307\u6807\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u6700\u6838\u5fc3\u7684\u6307\u6807\u662f\u4e0a\u7ebf\u6536\u76ca\uff0c\u6709\u65f6\u8fd9\u4e24\u4e2a\u6307\u6807\u4f1a\u6709\u4e0d\u4e00\u81f4\u7684\u5730\u65b9\uff0c\u6211\u4eec\u4e5f\u5c1d\u8bd5\u53bb\u5b9a\u4f4d\uff0c\u53ef\u80fd\u7684\u539f\u56e0\u4e3b\u8981\u6709\uff1a<\/span><\/p>\n<p><span><strong><span>1.Survivorship bias\u95ee\u9898\uff1a<\/span><\/strong><\/span><span>\u7ebf\u4e0b\u8bad\u7ec3\u65f6\u6240\u6709\u7684\u6570\u636e\u90fd\u662f\u7ebf\u4e0a\u6a21\u578b\u7b5b\u9009\u8fc7\u7684\u6bd4\u8f83\u597d\u7684\u6837\u672c\uff0c\u662f\u6211\u4eec\u5c55\u793a\u8fc7\u7684\u6bd4\u8f83\u597d\u7684\u5e7f\u544a\uff0c\u4e00\u6b21\u67e5\u8be2\u4e09\u6761\u5de6\u53f3\uff0c\u4f46\u5b9e\u9645\u4e0a\u5230\u4e86\u7ebf\u4e0a\u4e4b\u540e\uff0c\u9762\u4e34\u7684\u573a\u666f\u5b8c\u5168\u4e0d\u4e00\u6837\u3002\u524d\u9762\u8bb2\u8fc7RS\u7b5b\u9009\u51fa\u6700\u591a\u8fd1\u5343\u6761\u5e7f\u544a\uff0c\u8fd9\u4e9b\u5e7f\u544a\u90fd\u4f1a\u8ba9\u6a21\u578b\u53bb\u8bc4\u5224\u5b83\u7684CTR\u5927\u6982\u662f\u591a\u5c11\uff0c\u4f46\u5b9e\u9645\u4e0a\u8bad\u7ec3\u7684\u6837\u672c\u53ea\u6709\u6700\u7ec8\u7684\u4e09\u6761\uff0c\u5bf9\u4e8e\u7279\u522b\u5dee\u7684\u5e7f\u544a\u6a21\u578b\u5176\u5b9e\u662f\u6ca1\u6709\u7ecf\u9a8c\u7684\u3002\u5982\u679c\u4e00\u4e2a\u6a21\u578b\u53ea\u9002\u7528\u4e8e\u5bf9\u6bd4\u8f83\u597d\u7684\u5e7f\u544a\u8fdb\u884c\u6392\u5e8f\uff0c\u5c31\u4f1a\u5728\u7ebf\u4e0a\u8868\u73b0\u5f88\u5dee\uff0c\u56e0\u4e3a\u4ece\u6765\u6ca1\u6709\u89c1\u8fc7\u90a3\u4e9b\u7279\u522b\u5dee\u7684\u5e7f\u544a\u662f\u4ec0\u4e48\u6837\u7684\uff0c\u5c31\u4f1a\u505a\u8bef\u5224\u3002<\/span><\/p>\n<p><span><strong><span>2.\u7279\u5f81\u8986\u76d6\u7387\u7684\u95ee\u9898\uff0c<\/span><\/strong><\/span><span>\u4f8b\u5982\uff1a\u6211\u4eec\u6709\u4e2a\u7279\u5f81\u662f\u548c\u8fd9\u4e2a\u5e7f\u544a\u81ea\u8eabID\u76f8\u5173\u7684\uff0c\u8be5\u4fe1\u606f\u5728\u5728\u7ebf\u4e0b\u90fd\u80fd\u62ff\u5230\uff0c\u4f46\u771f\u6b63\u5230\u4e86\u7ebf\u4e0a\u4e4b\u540e\uff0c\u56e0\u4e3a\u5e7f\u544a\u5e93\u975e\u5e38\u5927\uff0c\u5f88\u591a\u5e7f\u544a\u662f\u672a\u5c55\u793a\u8fc7\u7684\uff0c\u76f8\u5173\u7684\u4fe1\u606f\u53ef\u80fd\u4f1a\u7f3a\u5931\uff0c\u539f\u6709\u7684\u7279\u5f81\u5c31\u4f1a\u5931\u6548\uff0c\u7ebf\u4e0a\u8be5\u7279\u5f81\u7684\u8986\u76d6\u7387\u6bd4\u8f83\u4f4e\uff0c\u6700\u7ec8\u5c06\u4e0d\u4f1a\u53d1\u6325\u4f5c\u7528\u3002<\/span><\/p>\n<p><span><strong><span>2.8 \u5e76\u884c\u5316\u8bad\u7ec3<\/span><\/strong><\/span><\/p>\n<p><span>\u505aDNN\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5c24\u5176\u662f\u6570\u636e\u91cf\u7684\u95ee\u9898\u3002\u5927\u5bb6\u90fd\u77e5\u9053\u6a21\u578b\u4f9d\u8d56\u7684\u6570\u636e\u91cf\u8d8a\u5927\u6548\u679c\u8d8a\u597d\uff0c\u56e0\u4e3a\u80fd\u77e5\u9053\u66f4\u591a\u7684\u4fe1\u606f\uff0c\u4ece\u800c\u63d0\u5347\u6a21\u578b\u7a33\u5b9a\u6027\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u4f1a\u6d89\u53ca\u5230\u5e76\u884c\u5316\u8bad\u7ec3\u7684\u4e8b\u60c5\u3002<\/span><\/p>\n<p><strong><span>1.\u52a0\u5927\u6570\u636e\u91cf\uff0c\u63d0\u5347\u6a21\u578b\u7a33\u5b9a\u6027<\/span><\/strong><\/p>\n<p><span>\u6211\u4eec\u505a\u641c\u7d22\u5e7f\u544a\u6709\u4e00\u4e2a\u91cd\u8981\u6307\u6807\uff1a\u8986\u76d6\u7387\uff0c\u662f\u6307\u6b64\u60c5\u51b5\u4e0b\u662f\u5426\u9700\u8981\u663e\u793a\u5e7f\u544a\u3002\u8986\u76d6\u7387\u9ad8\u4e86\uff0c\u7528\u6237\u53ef\u80fd\u4f1a\u4e0d\u6ee1\u610f\uff0c\u800c\u4e14\u591a\u51fa\u6765\u90a3\u4e9b\u5e7f\u544a\u591a\u534a\u4e0d\u592a\u597d\uff1b\u4f46\u5982\u679c\u8986\u76d6\u7387\u5f88\u4f4e\uff0c\u53c8\u7b49\u4e8e\u6ca1\u8d5a\u5230\u94b1\u3002\u8fd9\u4e2a\u6307\u6807\u5f88\u91cd\u8981\uff0c\u6240\u4ee5\u6211\u4eec\u5e0c\u671b\u878d\u5408\u6a21\u578b\u4e0a\u5230\u7ebf\u4e0a\u540e\u8986\u76d6\u7387\u662f\u53ef\u9884\u6d4b\u7684\u3002<\/span><\/p>\n<p><span>\u6211\u4eec\u53d1\u73b0\u8fd9\u4e2a\u878d\u5408\u6a21\u578b\u4f1a\u6709\u81ea\u5df1\u7684\u7279\u70b9\uff0c\u4e0a\u5230\u7ebf\u4e0a\u4e4b\u540e\u4f1a\u6709\u4e9b\u6ce2\u52a8\u3002\u4f8b\u5982\uff1a\u4eca\u5929\u6211\u4eec\u521a\u628a\u6a21\u578b\u8986\u76d6\u7387\u8c03\u597d\u4e86\uff0c\u4f46\u7b2c\u4e8c\u5929\u5b83\u53c8\u53d8\u4e86\u3002\u7136\u540e\u6211\u4eec\u5206\u6790\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u6570\u636e\u91cf\u7684\u95ee\u9898\uff0c\u9700\u8981\u5728\u4e00\u4e2a\u66f4\u5927\u7684\u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u6765\u63d0\u5347\u6a21\u578b\u7684\u7a33\u5b9a\u6027\u3002<\/span><\/p>\n<p><span><strong><span>2.\u52a0\u5927\u6570\u636e\u91cf\uff0c\u63d0\u5347\u6a21\u578b\u6536\u76ca<\/span><\/strong><\/span><\/p>\n<p><span>\u5176\u5b9e\u5c31\u662f\u89c1\u591a\u8bc6\u5e7f\u7684\u610f\u601d\uff0c\u6a21\u578b\u89c1\u5f97\u591a\uff0c\u78b0\u5230\u7684\u60c5\u51b5\u591a\uff0c\u5728\u9047\u5230\u65b0\u95ee\u9898\u7684\u65f6\u5019\uff0c\u5c31\u77e5\u9053\u7528\u4ec0\u4e48\u65b9\u6cd5\u53bb\u89e3\u51b3\u5b83\uff0c\u5c31\u80fd\u66f4\u5408\u7406\u7684\u9884\u4f30\u7ed3\u679c\u3002<\/span><\/p>\n<p><span>\u6211\u4eec\u8c03\u7814\u4e86\u4e00\u4e9b\u65b9\u6848\uff0c\u5982\u4e0b\uff1a<\/span><\/p>\n<p><span><span>\u25b2<\/span>Caffe\u53ea\u652f\u6301\u5355\u673a\u5355\u5361<\/span><\/p>\n<p><span><span>\u25b2<\/span>TensorFlow\u4e0d\u652f\u6301\u8f83\u5927BatchSize<\/span><\/p>\n<p><span><span>\u25b2<\/span>MxNet\u652f\u6301\u591a\u673a\u591a\u5361\uff0c\u5e95\u5c42C++,\u4e0a\u5c42Python\u63a5\u53e3<\/span><\/p>\n<p><em><strong><span>MxNet\u6211\u4eec\u7528\u5f97\u8fd8\u4e0d\u9519\uff0c\u57fa\u672c\u80fd\u8fbe\u5230\u9884\u671f\u7684\u6548\u679c\u3002<\/span><\/strong><\/em><\/p>\n<p><span><strong><span>\u4e09\u3001\u82e5\u5e72\u601d\u8003<\/span><\/strong><\/span><\/p>\n<p><strong><span>3.1 Deep Learing\u7684\u5f3a\u9879<\/span><\/strong><\/p>\n<p><span>\u8f93\u5165\u4e0d\u89c4\u6574\uff0c\u800c\u7ed3\u679c\u786e\u5b9a\u3002<\/span><\/p>\n<p><span>\u4f8b\u5982\uff1a\u56fe\u50cf\u7406\u89e3\uff0c\u8fd9\u4e2a\u56fe\u50cf\u5230\u5e95\u662f\u4ec0\u4e48\uff0c\u4eba\u5f88\u96be\u63cf\u8ff0\u51fa\u5230\u5e95\u662f\u54ea\u4e9b\u6307\u6807\u8868\u660e\u5b83\u662f\u4e00\u4e2a\u4eba\u8138\u8fd8\u662f\u732b\u6216\u72d7\u3002\u4f46\u7ed3\u679c\u975e\u5e38\u786e\u5b9a\uff0c\u4efb\u4f55\u4eba\u770b\u4e00\u773c\u5c31\u77e5\u9053\u56fe\u7247\u662f\u4ec0\u4e48\uff0c\u6ca1\u6709\u4e89\u8bae\u3002<\/span><\/p>\n<p><span>\u5177\u4f53\u5230\u6211\u4eec\u7684\u5e7f\u544a\u573a\u666f\uff0c\u5e7f\u544a\u7279\u5f81\u90fd\u662f\u6709\u5177\u4f53\u7684\u542b\u4e49\u3002\u4f8b\u5982\uff1a\u65f6\u95f4\u4fe1\u606f\uff0c\u8bf4\u662f\u51e0\u70b9\u5c31\u662f\u51e0\u70b9\uff0c\u5ba2\u6237\u7684\u5173\u952e\u8bcd\u4fe1\u606f\uff0c\u5b83\u5199\u7684\u662f\u4ec0\u4e48\u5c31\u662f\u4ec0\u4e48\uff0c\u6587\u672c\u5339\u914d\u5ea6\u662f\u591a\u5c11\uff0c\u662f\u9ad8\u8fd8\u662f\u4f4e\uff0c\u90fd\u6709\u786e\u5b9a\u7684\u542b\u4e49\u3002<\/span><\/p>\n<p><strong><span>3.2 CTR\u9884\u4f30<\/span><\/strong><\/p>\n<p><span>\u8f93\u5165\u542b\u4e49\u660e\u786e\uff0c\u573a\u666f\u76f8\u5173\uff0c\u7ed3\u679c\u4ee5\u7528\u6237\u4e3a\u5bfc\u5411\u3002<\/span><\/p>\n<p><span>\u4f8b\u5982\uff1a\u4e00\u4e2a\u67e5\u8be2\u8bcd\uff0c\u51fa\u73b0\u4e00\u6761\u5e7f\u544a\uff0c\u5927\u5bb6\u6765\u8bc4\u5224\u5b83\u662f\u597d\u662f\u574f\uff0c\u5176\u5b9e\u5b83\u7684\u7ed3\u679c\u662f\u56e0\u4eba\u800c\u5f02\u7684\uff0c\u6709\u4eba\u89c9\u5f97\u7ed3\u679c\u5f88\u597d\uff0c\u800c\u6709\u4eba\u5374\u89c9\u5f97\u4e00\u822c\uff0c\u5b83\u6ca1\u6709\u4e00\u4e2a\u5ba2\u89c2\u5ea6\u91cf\u7684\u6807\u51c6\u3002\u6240\u4ee5\u6211\u4eec\u8ba4\u4e3aCTR\u9884\u4f30\u8ddf\u4f20\u7edf\u7684DL\u5e94\u7528\u573a\u666f\u4e0d\u592a\u4e00\u6837\u3002<\/span><\/p>\n<p><span>\u6211\u4eecDNN\u7528\u5230\u7ebf\u4e0a\u540e\uff0c\u6536\u76ca\u5927\u6982\u63d0\u5347\u4e86\u767e\u5206\u4e4b\u4e94\u5de6\u53f3\uff0c\u4f46\u76f8\u5bf9Deep Learing\u5728\u5176\u4ed6\u573a\u666f\u7684\u5e94\u7528\uff0c\u8fd9\u4e2a\u63d0\u5347\u8fd8\u662f\u5c11\u4e86\u4e9b\u3002\u8bed\u97f3\u8f93\u5165\u6cd5\u5f88\u65e9\u5c31\u6709\u4eba\u505a\uff0c\u56e0\u4e3a\u51c6\u786e\u7387\u7684\u95ee\u9898\u4e00\u76f4\u6ca1\u6709\u592a\u5927\u5e94\u7528\uff0c\u4f46Deep Learing\u51fa\u6765\u540e\uff0c\u6bd4\u5982\u8baf\u98de\u53ca\u6211\u4eec\u641c\u72d7\u7684\u8bed\u97f3\u8f93\u5165\u6cd5\uff0c\u7528\u8d77\u6765\u5f88\u4e0d\u9519\uff0c\u51c6\u786e\u7387\u76f8\u6bd4\u4e4b\u524d\u63d0\u9ad8\u4e86\u4e00\u5927\u622a\u3002<\/span><\/p>\n<p><strong><span>3.3 \u672a\u6765\u65b9\u5411<\/span><\/strong><\/p>\n<p><span>Deep Learing\u65e2\u7136\u6709\u8fd9\u4e9b\u7279\u6027\uff0c\u6211\u4eec\u4f1a\u6839\u636e\u7279\u5b9a\u7684\u4e1a\u52a1\u573a\u666f\u8fdb\u884c\u5e94\u7528\uff0c\u6bd4\u5982\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u628a\u5b83\u7528\u4e0a\u53bb\u6548\u679c\u4f1a\u5f88\u597d\uff0c\u6211\u4eec\u8fd8\u60f3\u505a\u4e00\u4e9b\u6a21\u578b\u878d\u5408\u7684\u4e8b\u60c5\u3002<\/span><\/p>\n<p><span>\u6211\u4eec\u505a\u5b9e\u9a8c\u53d1\u73b0\u628aDNN\u548cLR\u878d\u5408\u540e\uff0c\u6700\u597d\u7684\u7ed3\u679c\u76f8\u6bd4LR\u672c\u8eab\uff0cAUC\u5927\u6982\u9ad8\u4e0d\u5230\u4e00\u4e2a\u767e\u5206\u70b9\u3002\u6211\u4eec\u4e5f\u5c1d\u8bd5\u8fc7\u76f4\u63a5\u628aDNN\u6a21\u578b\u7528\u5230\u7ebf\u4e0a\u53bb\uff0c\u6548\u679c\u5f88\u5dee\uff0c\u5c31\u7b97\u5728\u7ebf\u4e0b\u8ddfLR\u53ef\u6bd4\uff0c\u4f46\u5230\u7ebf\u4e0a\u540e\u4f1a\u6709\u4e00\u7cfb\u5217\u95ee\u9898\uff0c\u4e0d\u7ba1\u662f\u4ece\u8986\u76d6\u7387\u8fd8\u662f\u4ece\u6700\u7ec8\u6536\u76ca\u90fd\u4f1a\u6709\u8f83\u5927\u7684\u5dee\u5f02\uff0c\u8fd9\u662f\u6211\u4eec\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u6570\u636e\u4e0a\u5f97\u51fa\u7684\u5b9e\u9a8c\u7ed3\u8bba\uff0c\u5927\u5bb6\u5728\u5404\u81ea\u7684\u4e1a\u52a1\u573a\u666f\u4e0b\u53ef\u80fd\u6709\u6240\u533a\u522b\u3002<\/span><\/p>\n<p><span>\u5982\u679c\u4f60\u4eec\u6ca1\u6709\u8db3\u591f\u7ecf\u9a8c\u53bb\u624b\u5de5\u505a\u5404\u79cd\u4ea4\u53c9\u7279\u5f81\u7684\u8bbe\u8ba1\uff0c\u76f4\u63a5\u7528DNN\u53ef\u80fd\u4f1a\u6709\u597d\u7684\u6210\u679c\u3002\u5982\u679c\u5728\u975e\u5e38\u6210\u719f\u7684\u6a21\u578b\u4e0a\u505a\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u4e0b\uff0c\u6536\u76ca\u9884\u671f\u4e0d\u8981\u592a\u9ad8\u3002<\/span><\/p>\n<p><span><span>\uff08\u672c\u6587\u7531\u643a\u7a0b\u6280\u672f\u4e2d\u5fc3\u4f59\u6e05\u5170\u6574\u7406\uff09<\/span><\/span><\/p>\n<p><span><span><span>\u8f6c\u8f7d\u6765\u6e90\uff1a\u643a\u7a0b\u6280\u672f\u4e2d\u5fc3\uff08\u5fae\u4fe1\u516c\u53f7ctriptech\uff09<\/span><\/span><\/span><\/p>\n<p><span><span>\u539f\u6587\u94fe\u63a5\uff1ahttp:\/\/techshow.ctrip.com\/archives\/1112.html <\/span><\/span><\/p>\n<p><span><strong><span>\u6f14\u8bb2PPT\u4e0b\u8f7d\u8bf7\u70b9\u51fb\u9605\u8bfb\u539f\u6587<\/span><\/strong><\/span><\/p>\n<p><span>\u7f16\u8f91 \u6c6a\u68a6\u68a6<\/span><\/p>\n<p><span><em><strong><span>\u63a8\u8350\u9605\u8bfb<\/span><\/strong><\/em><em><strong><span><\/span><\/strong><\/em><\/span><\/p>\n<p><span><span><\/span><em><span><\/span><strong><span><\/span><\/strong><\/em><\/span><\/p>\n<p><span><\/span><\/p>\n<p><span><\/span><\/p>\n<p><span><span><strong>\u4e13\u4e1a\u5927\u6570\u636e\u7ade\u8d5b\u5e73\u53f0<\/strong><\/span><\/span><\/p>\n<\/p>\n<p><span><strong>\u4e2d\u56fd\u6570\u636e\u9752\u5e74\u6210\u957f\u4e4b\u5bb6<\/strong><\/span><\/p>\n<div class=\"articleend\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u6765\u81ea\u641c\u72d7\u8d44\u6df1\u7814\u7a76\u5458\u8212\u9e4f\u5728\u643a\u7a0b\u6280\u672f\u4e2d\u5fc3\u4e3b\u529e\u7684\u6df1\u5ea6\u5b66\u4e60Meetup\u4e2d\u7684\u4e3b\u9898\u6f14\u8bb2\uff0c\u4ecb\u7ecd\u4e86\u6df1\u5ea6\u5b66\u4e60\u5728\u641c\u72d7\u65e0\u7ebf\u641c\u7d22\u5e7f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[183],"class_list":["post-118320","post","type-post","status-publish","format-standard","hentry","category-news","tag-183"],"_links":{"self":[{"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/posts\/118320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/comments?post=118320"}],"version-history":[{"count":0,"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/posts\/118320\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/media?parent=118320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/categories?post=118320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fagao.me\/p\/wp-json\/wp\/v2\/tags?post=118320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}