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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768
2
부
신경망과 딥러닝
층은 활성화 함수를 사용하지 않습니다.
내부적으로
QNetwork
는 두 부분으로 구성됩니다. 관측을 처리하는 인코딩 네트워크와 그 뒤
에 행동마다
Q
-가치를 출력하는 밀집 출력층입니다.
TF
-
Agents
의
EncodingNetwork
클래
스는 여러 가지 에이전트에서 찾을 수 있는 신경망 구조를 구현합니다 (그림
18
-
14
).
입력이 하나 이상일 수 있습니다. 예를 들어 관측이 센서 데이터와 카메라 이미지로 구성된다
면 입력이 두 개가 됩니다. 각 입력마다 전처리 단계가 필요할 수 있습니다. 이런 경우 입력마
다 하나의 전처리 층을 만들어
preprocessing
_
layers
매개변수에 케라스 층의 리스트를 전
달할 수 있습니다. 네트워크는 각 층을 이에 대응되는 입력에 적용할 것입니다(여러 전처리 층
이 필요한 입력의 경우 모델 전체를 전달할 수 있습니다. 케라스 모델은 언제든지 층으로 사용
될 수 있습니다 ). 두 개 이상의 입력이 있다면
preprocessing
_
combiner
매개변수에 전처리
층의 출력을 하나의 출력으로 묶는 층을 추가로 전달해야 합니다.
그다음 인코딩 네트워크는
conv
_
layer
_
params
매개변수에 지정한 합성곱 층의 리스트를 순
서대로 적용할 것입니다. 이 매개변수는 원소를
3
개 갖는 튜플로 구성된 리스트입니다 ...
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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.