排列5走势图

新手在面对机器学习时最容易犯的六种错误!

发布时间:2019-12-19 11:00:00
阅读量:163
作者:猎维人工智能培训
[导读]:
本文列出了新手在做机器学习时最常犯的错误。希望你能从这些常见的错误中吸取教训,创建更健壮的解决方案,从而带来真正的价值。

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默认的损失函数

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排列5走势图YAODIAN:SHIZHONGJIANLIYIGEZIDINGYIDESUNSHIHANSHU,MIQIEPEIHENIDEJIEJUEFANGANMUBIAO。

对所有问题使用一种算法/方法

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YAODIAN:RUGUONIFAXIANZIJIYICIYOUYICIDISHIYONGXIANGTONGDESUANFA,ZHEIKENENGYIWEIZHENIMEIYOUDEDAOZUIHAODEJIEGUO。

忽略离群点

LIQUNDIANZHIKENENGHENZHONGYAO,YEKENENGWANQUANBEIHULVE,ZHEIQUJUEYUSHANGXIAWEN。YIWURANYUCEWEILI。KONGQIWURANKENENGHUICHUXIANDADEFENGZHI,GUANCHATAMENBINGLEJIEQIYUANYINSHIYIGEHAOZHUYI。ZAIMOUXIELEIXINGDECHUANGANQICUOWUDAOZHIDEYICHANGZHIDEQINGKUANGXIA,HULVETAMENBINGCONGSHUJUZHONGSHANCHUTAMENSHIANQUANDE。CONGMOXINGDEJIAODULAIKAN,YOUXIEMOXINGBIQITAMOXINGDUIYICHANGZHIGENGMINGAN。YIAdaboostWEILI,TAJIANGZHEIXIEYICHANGZHISHIWEI“KUNNAN”ANLI,BINGDUIYICHANGZHISHIJIAJIDADEQUANZHONG,ERJUECESHUKENENGZHISHIJIANGMEIGEYICHANGZHIZUOWEIYIGECUOWUFENLEI。

排列5走势图YAODIAN:ZAIKAISHIGONGZUOZHIQIAN,YIDINGYAOZIXICHAKANSHUJU,QUEDINGSHIFOUYINGGAIHULVEHUOGENGZIXIDICHAKANLIQUNZHI。

正则化线性回归或逻辑回归的常用方法

没有适当的处理周期特征

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YAODIAN:RUGUONIYOUXUNHUANTEZHENG,ERNIMEIYOUZHUANHUANTAMEN,NIJIUSHIZAIJINIDEMOXINGLAJISHUJU。

做L1/L2正则化但是没有标准化

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YAODIAN:ZHENGZEHUAHENHAO,DANSHIRUGUONIMEIYOUBIAOZHUNHUATEZHENG,TAHUIRANGNITOUTENG

将线性回归或逻辑回归的系数解释为特征重要性

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排列5走势图YAODIAN:LIJIESHENMETEZHENGDUIJIEGUOZUIZHONGYAOSHIZHONGYAODE,DANBUYAOJIASHENIKEYICHAKANXISHULAIDEDAO,XISHUTONGCHANGBUHUIGAOSUNISHIQINGDEQUANMAO。

总结

ZUOJIGEXIANGMU,DEDAOHAODEJIEGUO,GANJUEJIUXIANGYINGLEYIBAIWANMEIYUAN。NINULIGONGZUO,NIYOUJIEGUOZHENGMINGNIZUODEHENHAO,DANJIUXIANGQITARENHEXINGYEYIYANG,MOGUISHIZAIXIJIEZHONG,SHENZHIHUASHAODEQINGJIEKEYIYINZANGPIANJIANHECUOWU。ZHEIGELIEBIAOBINGBUSHIMIANMIANJUDAODE,ZHISHIRANGDUZHESIKAOYIXIANIDEJIEJUEFANGANZHONGKENENGYINZANGDESUOYOUXIAOWENTI。WEILEHUODEHAODEJIEGUO,ZUNXUNNIDEGUOCHENGSHIHENZHONGYAODE,BINGQIEYAOFANFUJIANCHANIMEIYOUFANYIXIECHANGJIANDECUOWU。

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