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.
503
13
장
텐서플로에서 데이터 적재와 전처리하기
지금까지는 메모리에 들어갈 수 있는 데이터만 사용했습니다. 하지만 메모리 용량에 맞지 않는
아주 큰 규모의 데이터셋으로 딥러닝 시스템을 훈련해야 하는 경우가 많습니다. 다른 딥러닝
라이브러리를 사용해서는 대규모 데이터셋을 효율적으로 로드하고 전처리하도록 구현하기가
까다롭습니다. 텐서플로는 데이터
API
덕분에 이를 쉽게 처리할 수 있습니다. 데이터셋 객체를
만들고 데이터를 읽어 올 위치와 변환 방법을 지정하면 됩니다.텐서플로가 멀티스레딩, 큐, 배
치, 프리페치
prefetch
같은 상세한 사항을 모두 대신 처리해줍니다. 또한 데이터
API
는
tf
.
keras
와도 잘 동작합니다!
기본 기능으로 데이터
API
는 텍스트 파일(예를 들면
CSV
파일), 고정 길이의 레코드를 가진
이진 파일, 텐서플로의
TFRecord
포맷을 사용하는 이진 파일에서 데이터를 읽을 수 있습니
다. 이 포맷은 길이가 다른 레코드를 지원합니다.
TFRecord
는 일반적으로 (오픈 소스 이진
포맷인 ) 프로토콜 버퍼
protocol
buffer
를 담은 유연하고 효율적인 이진 포맷입니다. 데이터
API
는
SQL
데이터베이스에서 읽는 기능을 지원합니다. 또한 구글 빅쿼리
BigQuery
와 같은 다양한 데이
터 소스에서 읽을 수 있는 오픈 소스도 ...
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.