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밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
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밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초

by Joel Grus, Hangyeol Kim, Seongju Ha, Eunjung Park
May 2022
Beginner to intermediate
448 pages
13h 7m
Korean
Insight
Content preview from 밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
from Scratch
257
󽴜󽴔󻫗󻞫󽴞󽴔󽴔
network = [[gradient
_
step(neuron, grad, -learning
_
rate)
for neuron, grad in zip(layer, layer
_
grad)]
for layer, layer
_
grad in zip(network, gradients)]
# XOR
학습했는지
확인한다
.
assert feed
_
forward(network, [0, 0])[-1][0] < 0.01
assert feed
_
forward(network, [0, 1])[-1][0] > 0.99
assert feed
_
forward(network, [1, 0])[-1][0] > 0.99
assert feed
_
forward(network, [1, 1])[-1][0] < 0.01
최종 학습된 신경망은 다음과 같은데
[ #
은닉층
[[7, 7, -3], # OR
계산
[5, 5, -8]], # AND
계산
#
출력층
[[11, -12, -5]] # '
번째
입력값이
아닌
번째
입력값
'
계산
]
이는 앞서 다룬 신경망과 일맥상통한다.
18.4
예시: Fizz Buzz
엔지니어링 부사장은 유명한 프로그래밍 챌린지인
Fizz
Buzz
문제를 기술직 면
접 후보자들에게 제출하고 싶어한다.
1
부터
100
까지의
숫자
중에서
, 3 ...
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Publisher Resources

ISBN: 9788966262571