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
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.
896
3
부
부록
이원수
ε
2
= 0
인
a + bε
부동소수점수 (a, b) 쌍으로 저장됩니다.
예를 들면 42.000024가 아니고
(42.0, 24.0)입니다.
그림
D-2
이원수를 사용한 전진 모드 자동 미분
)
,( 43
y
f
∂
∂
를 계산하려면 그래프를 다시 실행해야 합니다. 이때는
x
=
3
,
y
=
4
+
ε
으로 설정합
니다.
전진 모드 자동 미분은 유한 차분 근사보다 훨씬 더 정확합니다. 하지만 동일하게 중요한 단
점이 있습니다. 적어도 입력이 많고 출력이 적을 때 그렇습니다(신경망의 경우에 해당합니
다).
1
,
000
개의 파라미터가 있다면 모든 파라미터에 대한 편도함수를 계산하기 위해 그래프를
1
,
000
번 실행해야 합니다. 그래서 후진 모드 자동 미분이 선호됩니다. 이 방법은 모든 편도함
수를 계산하기 위해 그래프를 단 두 번만 실행하면 됩니다. 어떻게 하는지 알아보죠.
897
부록 D
자동 미분
D.4
후진 모드 자동 미분
후진 모드 자동 미분
reverse
-
mode
autodiff
은 텐서플로에서 구현된 방법입니다. 먼저 정방향으로 (즉,
입력에서 출력 방향으로 ) 그래프를 실행하여 각 노드의 ...
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.