![\"\"](\"https:\/\/www.fagao.me\/images\/uploads\/2019_018.jpg\")
<\/p>\n<\/p>\n
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1. \u7528\u6237\u6807\u8bc6\uff1b \u5728\u79fb\u52a8\u573a\u666f\u4e0b\uff0c\u4e00\u822c\u5206\u4e3a\u4e24\u7c7b\uff1a \u8bbe\u5907\u6807\u8bc6\u548c\u7528\u6237\u6807\u8bc6\uff1b\u8bbe\u5907\u6807\u8bc6\uff0c\u8bf8\u5982 IMEI \u3001 AndroidID \u3001IDFA \u7b49\uff1b\u7528\u6237\u6807\u8bc6\uff0c\u8bf8\u5982\u5c06\u8bbe\u5907\u6807\u8bc6\uff0c\u52a0\u4e0a\u4e00\u7cfb\u5217\u7684\u5b57\u6bb5\uff08\u5982\uff1a ip \u5730\u5740\u3001\u8bbe\u5907\u5f00\u673a\u65f6\u95f4\u7b49\uff09\u901a\u8fc7\u7b97\u6cd5\u7ec4\u5408\u6210\u4e00\u4e2a\u7528\u6237\u6807\u8bc6\u3002<\/p>\n
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3. \u7528\u6237\u770b\u8fc7\u5e7f\u544a\u4e4b\u540e\uff0c\u5b9e\u9645\u53d1\u751f\u8f6c\u5316\u7684\u6570\u636e\uff1b\u5305\u62ec\u7ebf\u4e0a\u7ebf\u4e0b\uff0c\u4f46\u90fd\u662f\u5b58\u5728\u5e7f\u544a\u4e3b\u7cfb\u7edf\u91cc\u3002\u7ebf\u4e0a\uff0c\u5982\uff1a\u7528\u6237\u5728 App \u5185\u53d1\u751f\u7684\u6fc0\u6d3b\u3001\u6ce8\u518c\u3001\u4ed8\u8d39\u7b49\u884c\u4e3a\uff1b\u7ebf\u4e0b\uff0c\u5982\uff1a\u7528\u6237\u662f\u5426\u5230\u5e97\u3001\u53d1\u751f\u8d2d\u4e70\u3001\u53c2\u4e0e\u67d0\u9879\u6d3b\u52a8\u7b49\u884c\u4e3a\u3002<\/p>\n
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\u8f6c\u5316\u9884\u4f30<\/p>\n
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1\u3001\u8f6c\u5316\u6570\u636e\u7684\u7279\u70b9\u662f\u6d77\u91cf\u4e14\u7a00\u758f\u7684\uff0c\u6211\u4eec\u6bcf\u5929\u6709\u767e\u4ebf\u5355\u4f4d\u65e5\u5fd7\u89c4\u6a21\uff0c 8 \u4ebf\u7684\u6d3b\u8dc3\u7528\u6237\uff0c\u6570\u5341\u4e07\u7684\u5e7f\u544a\uff0c\u4f46\u662f\u7528\u6237\u00d7\u5e7f\u544a\u6b63\u4f8b\u6570\u4e0d\u8db3\uff1b<\/p>\n
![\"\"](\"https:\/\/www.fagao.me\/images\/uploads\/2021_020.jpg\")
<\/p>\n
2\u3001\u8f6c\u5316\u6570\u636e\u566a\u97f3\u8f83\u5927\uff0c\u7531\u4e8e\u8f6c\u5316\u6570\u636e\u662f\u7531\u5e7f\u544a\u4e3b\u4e0a\u62a5\uff0c\u7cfb\u7edf\u7684\u4e0d\u53ef\u63a7\u56e0\u7d20\u8f83\u591a\uff0c\u6570\u636e\u53ef\u9760\u6027\u6bd4\u8f83\u5dee\uff1b<\/p>\n
3\u3001\u8f6c\u5316\u5929\u7136\u7684\u56de\u6d41\u65f6\u95f4\u8f83\u957f\uff0c\u79fb\u52a8 APP \u6fc0\u6d3b\u5ef6\u8fdf\u53ef\u8fbe\u6570\u65e5\uff0c\u7535\u5546\u4e0b\u5355\u5ef6\u8fdf\u53ef\u8fbe\u6570\u5341\u65e5\uff1b<\/p>\n
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a) \u5168\u6d41\u7a0b\u6570\u636e\u9a71\u52a8\u7684\u6a21\u578b\u8bad\u7ec3\u6846\u67b6<\/p>\n
\u4f20\u7edf\u7684\u57fa\u4e8e\u7edf\u8ba1\u7684\u8f6c\u5316\u7387\u9884\u4f30\uff0c\u51c6\u786e\u5ea6\u4e0d\u9ad8\uff0c\u65e0\u6cd5\u5dee\u5f02\u5316\u7684\u9884\u4f30\u6bcf\u6b21\u6d41\u91cf\u7684\u5e7f\u544a\u4e3b\u4ef7\u503c\u3002\u4e3a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e1a\u5185\u4e00\u822c\u91c7\u7528\u6570\u636e\u9a71\u52a8\u65b9\u6cd5\uff0c\u57fa\u4e8e\u5927\u91cf\u7528\u6237\u5386\u53f2\u6570\u636e\uff0c\u5f15\u5165\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u8bad\u7ec3\u6a21\u578b\uff0c\u5e76\u5e94\u7528\u7ebf\u4e0a\u7cfb\u7edf\u3002\u9700\u8981\u5f15\u5165\u66dd\u5149\u3001\u70b9\u51fb\u3001\u8f6c\u5316\u3001\u7528\u6237\u753b\u50cf\u3001\u5e7f\u544a\u753b\u50cf\u3001\u7b2c\u4e09\u65b9\u5e73\u53f0\u6570\u636e\u7b49\u591a\u79cd\u6570\u636e\u6e90\uff0c\u62bd\u53d6\u9ad8\u7ef4\u5ea6\u7279\u5f81\uff0c\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\uff0c\u5904\u7406\u590d\u6742\u7684\u903b\u8f91\uff0c\u5bf9\u6548\u7387\u548c\u5b9e\u65f6\u6027\u4e5f\u6709\u8f83\u9ad8\u8981\u6c42\u3002<\/p>\n
\u56fe\u56dbGoingMerry \u7cfb\u7edf\u6846\u67b6<\/p>\n
b) \u5927\u89c4\u6a21\u5e76\u884c\u5316\u8bad\u7ec3\u7cfb\u7edf<\/p>\n
\u8f6c\u5316\u9884\u4f30\u4e0d\u8bba\u662f\u8bad\u7ec3\u901f\u5ea6, \u8fd8\u662f\u8bad\u7ec3\u65b9\u5f0f\uff0c\u90fd\u9700\u8981\u4e00\u5957\u53ef\u6269\u5c55\u7684\u5927\u89c4\u6a21\u5e76\u884c\u8bad\u7ec3\u7cfb\u7edf\u6765\u66f4\u597d\u7684\u652f\u6301\u3002\u524d\u6587\u63d0\u5230\u6211\u4eec\u7684\u7cfb\u7edf\u652f\u6301 LR \u3001 FM \u3001DNN \u7b49\u591a\u79cd\u8bad\u7ec3\u7b97\u6cd5\uff0c\u8fd9\u91cc\u53ea\u8bf4\u4e0b\u89c2\u5bdf\u5230\u7684\u53c2\u8d5b\u9009\u624b\u63d0\u5230\u6700\u591a\u7684 LR \u3002<\/p>\n
\u903b\u8f91\u56de\u5f52\u5e94\u8be5\u7b97\u662f\u6700\u5e38\u7528\u7684\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u4e86\uff0c\u5b83\u6709\u7406\u89e3\u8d77\u6765\u7b80\u5355\uff0c\u6613\u4e8e\u5e76\u884c\u5316\uff0c\u503c\u57df\u533a\u95f4\u4e3a [0\uff0c1] \u7b49\u7279\u70b9\uff0c\u5f88\u9002\u5408\u4f7f\u7528\u5728\u70b9\u51fb\u7387\u9884\u4f30\u6216\u8005\u8f6c\u5316\u9884\u4f30\u7b49\u5de5\u4f5c\u3002\u53d1\u5c55\u81f3\u4eca\uff0c\u903b\u8f91\u56de\u5f52\u7684\u4f18\u5316\u7b97\u6cd5\u4e5f\u591a\u79cd\u591a\u6837\uff0c\u4f8b\u5982\u5e38\u7528 SGD \u3001 LBFGS \u3001 OWLQN \u7b49\u3002\u76ee\u524d\u8d5b\u9898\u7684\u6570\u636e\u91cf\u8f83\u5c0f\uff0c\u4f7f\u7528\u73b0\u6709\u7684\u5355\u673a\u7b97\u6cd5\u5e94\u8be5\u5c31\u80fd\u6709\u4e0d\u9519\u7684\u6548\u679c\u3002<\/p>\n
\u4e1a\u5185\u4f7f\u7528\u8f83\u591a\u662f Google \u63d0\u51fa\u7684 FTRL \u7b97\u6cd5\u3002 FTRL \u7b97\u6cd5\u6838\u5fc3\u662f\u4e00\u79cd online \u7684\u903b\u8f91\u56de\u5f52\uff0c\u5728\u539f\u59cb\u6f14\u7b97\u6cd5\u4e0a\u52a0\u5165 L1 , L2 \u6b63\u5219\u5316\u548c adaptive learning \u3002\u5b83\u80fd\u89e3\u51b3\u4f20\u7edf SGD \u4e2d\u65e0\u6cd5\u5f97\u5230\u7a00\u758f\u6027\u7684\u95ee\u9898, \u5728\u7a00\u758f\u6027\u4e0a\u80fd\u591f\u548c\u4f20\u7edf\u7684 OWLQN \u8fbe\u5230\u540c\u6837\u7684\u7a0b\u5ea6\u3002\u53e6\u5916, FTRL \u5bf9\u6bcf\u4e00\u7ef4\u7279\u5f81\u7ef4\u62a4\u4e00\u4e2a\u5b66\u4e60\u7387, \u80fd\u591f\u5f97\u5230\u66f4\u4f73\u7684\u6a21\u578b\u3002<\/p>\n
\u8981\u5904\u7406\u817e\u8baf\u8fd9\u79cd\u6d77\u91cf\u6570\u636e\uff0c\u7b97\u6cd5\u7684\u5e76\u884c\u5316\u5fc5\u987b\u662f\u6807\u914d\uff0c FTRL \u7684\u5e76\u884c\u5316\u53ef\u4ee5\u53c2\u8003 ParallelSGD \u7684\u601d\u8def\uff0c\u4e5f\u53ef\u4ee5\u8003\u8651 Hogwild\uff01\u7684\u601d\u60f3\uff1b\u4ece\u6570\u636e\u5e76\u884c\uff0c\u6a21\u578b\u5e76\u884c\uff0c\u6216\u6570\u636e+\u6a21\u578b\u5e76\u884c\u7684\u89d2\u5ea6\u8003\u8651\u3002\u603b\u4e4b\u5c31\u662f\u80fd\u628a\u5927\u578b\u4efb\u52a1\u9010\u6b65\u62c6\u89e3\uff0c\u8ba9\u673a\u5668\u80fd\u591f\u72ec\u81ea\u5b8c\u6210\u4e00\u90e8\u5206\u4efb\u52a1\uff0c\u589e\u5f3a\u5176\u6269\u5c55\u6027\u3002<\/p>\n
\u5728\u6211\u4eec\u7684\u7cfb\u7edf\u4e2d\uff0c\u4e5f\u5b9e\u9a8c\u8fc7\u57fa\u4e8e Hogwild \uff01\u601d\u60f3\u7684\u5206\u5e03\u5f0f\u7684\u65e0\u9501 FTRL \u7b97\u6cd5\uff0c\u5e76\u4e14\u53d6\u5f97\u4e86\u4e0d\u9519\u7684\u6548\u679c\uff0c\u53ef\u4ee5\u652f\u6301\u4ebf\u7ea7\u7279\u5f81, TB \u7ea7\u8bad\u7ec3\u6570\u636e\uff1b\u4f7f\u7528\u8db3\u591f\u591a parameter server \u548c worker \u65f6, \u53ef\u4ee5\u652f\u6301\u767e\u4ebf\u7279\u5f81, PB \u7ea7\u8bad\u7ec3\u6570\u636e\u3002<\/p>\n
c) \u591a\u7ef4\u5ea6\u3001\u4f53\u7cfb\u5316\u7684\u8bc4\u4f30\u6a21\u5757<\/p>\n
\u57fa\u4e8e\u4ee5\u4e0a\u5168\u6d41\u7a0b\u6570\u636e\u9a71\u52a8\u7684\u6a21\u578b\u8bad\u7ec3\u6846\u67b6\u3001\u5927\u89c4\u6a21\u5e76\u884c\u8bad\u7ec3\u7b97\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u9ad8\u6548\u7684\u5b8c\u6210\u6a21\u578b\u8bad\u7ec3\u4efb\u52a1\u3002\u6b64\u65f6\uff0c\u5982\u4f55\u5ba2\u89c2\u3001\u6709\u6548\u7684\u8bc4\u4f30\u6a21\u578b\u6548\u679c\u662f\u6211\u4eec\u9762\u4e34\u7684\u53e6\u4e00\u4e2a\u96be\u9898\u3002\u4f20\u7edf\u7684 AUC \u7b97\u6cd5\u53ea\u662f\u8bc4\u4f30\u6240\u6709\u6d4b\u8bd5\u6837\u672c\u4e4b\u95f4\u5e8f\u7684\u51c6\u786e\u6027\uff0c\u4f46\u662f\u8f6c\u5316\u4ea7\u54c1\u4ea7\u54c1\u9700\u8981\u7cbe\u786e\u8ba1\u7b97\u67d0\u4e2a\u5e7f\u544a\u4e3b\u6bcf\u6b21\u6d41\u91cf\u7684\u51fa\u4ef7\uff0c\u56e0\u6b64\u53ea\u8bc4\u4f30\u6574\u4f53\u6d4b\u8bd5\u6570\u636e\u6392\u5e8f\u51c6\u786e\u6027\u4e0d\u80fd\u6ee1\u8db3\u9700\u6c42\u3002\u6211\u4eec\u5728\u539f\u6709\u7b97\u6cd5\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u6539\u8fdb\u5e76\u5b9e\u73b0\u4e86 WeightedBias \u3001 MicroAUC \u3001 EqConvCPA \u7b49\u591a\u79cd\u8bc4\u4f30\u7b97\u6cd5\uff0c\u901a\u8fc7\u4f20\u7edf\u7684 Logloss \u548c\u4ee5\u4e0a\u7b97\u6cd5\u548c\u53ef\u4ee5\u5bf9\u6a21\u578b\u8fdb\u884c\u5168\u65b9\u4f4d\u8bc4\u4f30\u3002<\/p>\n
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\u9753\u5230\u7206\u70b8\u7684\u4f5c\u8005 \u7b80\u4ecb<\/p>\n
\u9648\u743c\uff0c\u817e\u8baf\u9ad8\u7ea7\u5de5\u7a0b\u5e08\uff0c2012\u5e74\u7855\u58eb\u6bd5\u4e1a\u4e8e\u897f\u5b89\u7535\u5b50\u79d1\u6280\u5927\u5b66\u3002\u6bd5\u4e1a\u540e\u52a0\u5165\u817e\u8baf\uff0c2012\u5e744\u6708-2013\u5e749\u6708\u5c31\u804c\u4e8e\u641c\u7d22\u5e7f\u544a\u5e73\u53f0\u90e8\uff0c\u4ece\u4e8b\u70b9\u51fb\u7387\u9884\u4f30\u5de5\u4f5c\uff1b2013\u5e749\u6708\u81f3\u4eca\uff0c\u5c31\u804c\u793e\u4ea4\u4e0e\u6548\u679c\u5e7f\u544a\u90e8\uff0c\u4ece\u4e8b\u8f6c\u5316\u7387\u9884\u4f30\u5de5\u4f5c\u3002<\/p>\n
\u9648\u743c<\/p>\n
\u5218\u96ea\u5a05\uff0c\u817e\u8baf\u9ad8\u7ea7\u4ea7\u54c1\u7ecf\u7406\uff0c2011\u5e74\u7855\u58eb\u6bd5\u4e1a\u4e8e\u4e2d\u79d1\u9662\u8ba1\u7b97\u6240\u30022014\u5e747\u6708\u5c31\u804c\u793e\u4ea4\u4e0e\u6548\u679c\u5e7f\u544a\u90e8\uff0c\u4ece\u4e8b\u5e7f\u544a\u8f6c\u5316\u4ea7\u54c1\u76f8\u5173\u5de5\u4f5c\u3002<\/p>\n
\u5218\u96ea\u5a05<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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