May 2020
Beginner to intermediate
952 pages
24h 11m
Korean
Content preview from 핸즈온 머신러닝(2판): 사이킷런, 케라스, 텐서플로 2를 활용한 머신러닝, 딥러닝 완벽 실무
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110
1
부
머신러닝
"
passthrough
"
를) 지정할 수 있습니다.
54
사이킷런
0
.
19
나 그 이전 버전을 사용한다면
sklearn
-
pandas
와 같은 서드파티
third
-
party
라이
브러리를 사용할 수 있습니다. 또는
ColumnTransformer
와 동일한 기능을 가진 사용자 정의
변환기를 만들 수 있습니다. 또는 여러 변환기를 적용하고 결과를 합쳐주는
FeatureUnion
클
래스를 사용할 수 있습니다. 하지만 각 변환기에 열을 따로 지정할 수 없고 전체 데이터에 모두
적용됩니다. 이 문제를 해결하기 위해 열을 선택해주는 사용자 정의 변환기를 만들 수 있습니
다(주피터 노트북의 예제를 참고하세요 ).
2.6
모델 선택과 훈련
드디어 마지막입니다! 문제를 정의한 후 데이터를 읽어 들이고 탐색했습니다. 그리고 훈련 세
트와 테스트 세트로 나누고 머신러닝 알고리즘에 주입할 데이터를 자동으로 정제하고 준비하
기 위해 변환 파이프라인을 작성했습니다. 이제 머신러닝 모델을 선택하고 훈련시킬 준비가 되
었습니다.
2.6.1
훈련 세트에서 훈련하고 평가하기
이전 단계의 작업 덕분에 생각보다 훨씬 간단해졌습니다. 먼저 앞 장에서 했던 것처럼 선형 회
귀 모델을 훈련시켜보겠습니다.
from sklearn.linear_model import LinearRegression
lin_reg ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.