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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470
2
부
신경망과 딥러닝
NOTE
_
앞으로 살펴보겠지만 케라스는
add
_
weight
()
메서드로 변수 생성을 대신 처리해주기 때문에 실
전에서 변수를 직접 만드는 일은 매우 드뭅니다. 또한 모델 파라미터는 일반적으로 옵티마이저가 업데이트하
므로 수동으로 변수를 업데이트하는 일은 매우 드뭅니다.
12.2.5
다른 데이터 구조
텐서플로는 다음과 같이 몇 가지 다른 데이터 구조도 지원합니다 (더 자세한 내용은 주피터 노
트북의 ‘텐서와 연산’과 부록
F
를 참고하세요 ).
•
희소 텐서
sparse
tensor
(
tf
.
SparseTensor
)
대부분
0
으로 채워진 텐서를 효율적으로 나타냅니다.
tf.sparse
패키지는 희소 텐서를 위한 연산을 제공
합니다.
•
텐서 배열
tensor
array
(
tf
.
TensorArray
)
텐서의 리스트입니다. 기본적으로 고정된 길이를 가지지만 동적으로 바꿀 수 있습니다. 리스트에 포함된
모든 텐서는 크기와 데이터 타입이 동일해야 합니다.
•
래그드 텐서
ragged
tensor
(
tf
.
RaggedTensor
)
래그드 텐서는 리스트의 리스트를 나타냅니다. 텐서에 포함된 값은 동일한 데이터 타입을 가져야 하지만
리스트의 길이는 다를 수 있습니다.
tf.ragged
패키지는 래그드 텐서를 위한 연산을 제공합니다.
•
문자열 텐서
string ...
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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.