January 2017
Beginner to intermediate
312 pages
7h 3m
Korean
Content preview from 밑바닥부터 시작하는 딥러닝
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65
3
장
-
신경망
3.1.2
퍼셉트론 복습
신경망의 신호 전달 방법을 보기 전에 퍼셉트론을 살짝 복습해보기로 하죠. 먼저 [그림
3
-
2
]
와 같은 구조의 네트워크를 생각해봅시다.
그림
3-2
퍼셉트론 복습
[그림
3
-
2
]는
x
1
과
x
2
라는 두 신호를 입력받아
y
를 출력하는 퍼셉트론입니다. 이 퍼셉트론을
수식으로 나타내면 [식
3
.
1
]이 됩니다.
y
bwxwx
bwxwx
0( )
1( )
0
0
11 22
11 22
2
#
=
++
++
(
[식 3.1 ]
여기서
b
는
편향
을 나타내는 매개변수로 뉴런이 얼마나 쉽게 활성화되느냐를 제어합니다. 한
편,
w
1
과
w
2
는 각 신호의
가중치
를 나타내는 매개변수로, 각 신호의 영향력을 제어합니다.
그런데 [그림
3
-
2
]의 네트워크에는 편향
b
가 보이지 않습니다. 만약 편향을 명시한다면 [그림
3
-
3
]과 같이 나타낼 수 있습니다.
그림
3-3
편향을 명시한 퍼셉트론
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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.