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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763
18
장
강화 학습
하면 이런 작업을 처리합니다. 또는
suite
_
gym
.
load
()
함수가 짐 환경을 만들고 래퍼를 받
아 처리도 해줍니다. 래퍼는 매개변수 없이 만들어지기 때문에 매개변수를 지정하고 싶으면
lambda
로 전달해야 합니다. 예를 들어 다음 코드는 각 에피소드에서 최대
10
,
000
번 스텝을 실
행하고 각 행동이 네 번 반복되는 <브레이크아웃> 환경을 만듭니다.
from gym.wrappers import TimeLimit
limited_repeating_env = suite_gym.load(
"Breakout-v4",
gym_env_wrappers=[lambda env: TimeLimit(env, max_episode_steps=10000)],
env_wrappers=[lambda env: ActionRepeat(env, times=4)])
아타리 환경을 사용하는 경우 대부분의 논문에서 적용하는 표준적인 전처리 단계가 있습니다.
TF
-
Agents
는 이를 구현하여 간편한
AtariPreprocessing
래퍼를 제공합니다. 이 래퍼가 제
공하는 전처리 목록은 다음과 같습니다.
•
흑백 변환과 다운샘플링
관측을 흑백으로 변환하고 다운샘플링합니다 (기본적으로
84
×
84
픽셀로 줄입니다).
41
•
맥스 풀링
게임의 마지막 두 프레임을
1
×
1
필터로 ...
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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.