confusion matrix
https://shinminyong.tistory.com/28
isolation forest
https://velog.io/@vvakki_/Isolation-Forest-%EB%AF%B8%EC%99%84%EC%84%B1
이상치 탐지 및 제거
https://lsjsj92.tistory.com/556
readme
https://github.com/DataNetworkAnalysis/Cosmetic-Recommendation-for-Man
https://github.com/RichardLitt/standard-readme/blob/master/README.md#background
https://github.com/MattD82/Predicting-Spotify-Song-Popularity/blob/master/README.md#introduction