Warning: mkdir(): No space left on device in /var/www/tgoop/post.php on line 37

Warning: file_put_contents(aCache/aDaily/post/DataScienceArchive/--): Failed to open stream: No such file or directory in /var/www/tgoop/post.php on line 50
Data Science Archive@DataScienceArchive P.114
DATASCIENCEARCHIVE Telegram 114
Forwarded from Data Science Archive (小熊猫)
说到特征降维/选择的问题,大部分EDA的套路都是从model训练的loss来判断feature importance。其实有一个简单易行而且很有效的办法是在CV里面用做feature permutation,对原始特征shuffle得到shadow(也可以加一些噪音),在通过zscore比较两者差异来判断importance,不断遍历筛选。在ESLII中593页有提到这个办法。R里面有一个包Boruta可以做这件事,py也有:https://github.com/scikit-learn-contrib/boruta_py



tgoop.com/DataScienceArchive/114
Create:
Last Update:

说到特征降维/选择的问题,大部分EDA的套路都是从model训练的loss来判断feature importance。其实有一个简单易行而且很有效的办法是在CV里面用做feature permutation,对原始特征shuffle得到shadow(也可以加一些噪音),在通过zscore比较两者差异来判断importance,不断遍历筛选。在ESLII中593页有提到这个办法。R里面有一个包Boruta可以做这件事,py也有:https://github.com/scikit-learn-contrib/boruta_py

BY Data Science Archive




Share with your friend now:
tgoop.com/DataScienceArchive/114

View MORE
Open in Telegram


Telegram News

Date: |

Developing social channels based on exchanging a single message isn’t exactly new, of course. Back in 2014, the “Yo” app was launched with the sole purpose of enabling users to send each other the greeting “Yo.” 2How to set up a Telegram channel? (A step-by-step tutorial) Your posting frequency depends on the topic of your channel. If you have a news channel, it’s OK to publish new content every day (or even every hour). For other industries, stick with 2-3 large posts a week. Hashtags are a fast way to find the correct information on social media. To put your content out there, be sure to add hashtags to each post. We have two intelligent tips to give you: ZDNET RECOMMENDS
from us


Telegram Data Science Archive
FROM American