August 2021
Beginner to intermediate
720 pages
15h 32m
Korean
Content preview from fastai와 파이토치가 만나 꽃피운 딥러닝
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275
5
이미지 분류
그러면
fine
_
tune
이 하는 일을 직접 해보도록 하죠. 우선
fit
_
one
_
cycle
메서드로 추가된
계층에 대해 세 번의 에포크 동안 학습을 수행합니다.
1
장에서 언급한 대로
fit
_
one
_
cycle
은
fine
_
tune
을 사용하지 않는 상황에서 모델 학습에 권장되는 메서드입니다.
fit
_
one
_
cycle
메서드의 작동 원리는
13
장에서 자세히 살펴볼 것이므로 여기서는 간략히만 설명합니다.
fit
_
one
_
cycle
에서는 전체 학습을 두 부분으로 나눕니다. 우선 낮은 학습률로 학습을 시작하여
첫 번째 부분까지 점진적으로 학습률을 증가시키고 두 번째 부분에서는 다시 점진적으로 학습
률을 감소시킵니다.
learn = cnn_learner(dls, resnet34, metrics=error_rate)
learn.fit_one_cycle(3, 3e-3)
epoch train
loss valid
loss error
rate time
0 1
.
188042 0
.
355024 0
.
102842 00
:
20
1 0
.
534234 0
.
302453 0
.
094723 00
:
20
2 0
.
325031 0
.
222268 0
.
074425 00
:
20
그리고 모델을 동결 해제해보죠.
learn.unfreeze()
그다음
lr
_
find
를 다시 수행합니다. 학습할 계층이 더 많아졌고 세 ...
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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.