May 2018
Beginner to intermediate
672 pages
16h 54m
Korean
Content preview from 핸즈온 머신러닝: 사이킷런과 텐서플로를 활용한 머신러닝, 딥러닝 실무
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
85
2
장
머신러닝 프로젝트 처음부터 끝까지
b
훈련 세트에서 이런 구역을 제거합니다 ($
500
,
000
가 넘는 값에 대한 예측은 평가 결과가 매우 나쁠 것이
므로 테스트 세트에서도 제거합니다 ).
3
특성들의 스케일이 서로 많이 다릅니다. 특성 스케일링에 대해서는 이 장의 뒷부분에서 살펴보겠습니다.
4
마지막으로 많은 히스토그램의 꼬리가 두껍습니다. 가운데에서 왼쪽보다 오른쪽으로 더 멀리 뻗어 있습니다.
이런 형태는 일부 머신러닝 알고리즘에서 패턴을 찾기 어렵게 만듭니다. 나중에 이런 특성들을 좀 더 종 모양
의 분포가 되도록 변형시키겠습니다.
이제 우리가 다룰 데이터를 많이 이해하게 되었습니다.
CAUTION
_
데이터를 더 깊게 들여다보기 전에 테스트 세트를 따로 떼어놓아야 합니다. 그리고 테스트 세트
를 절대 들여다보면 안 됩니다.
2.3.4
테스트 세트 만들기
이 단계에서 데이터 일부를 자진해서 떼어놓으라는 것이 이상하게 들릴지 모르겠습니다. 지금
까지 데이터를 잠시 살펴봤을 뿐이고 어떤 알고리즘을 사용할지 정하기 전에 전체 데이터를 자
세히 파악해야 하지 않을까요? 사실 맞습니다. 하지만 우리 뇌는 매우 과대적합되기 쉬운 엄청
난 패턴 감지 시스템입니다. 만약 테스트 세트를 들여다본다면 테스트 세트에서 겉으로 드러난
어떤 패턴에 속아 특정 머신러닝 모델을 선택하게 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.