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Deep Learning Kauan Alves Carolina Maldonado 10/2018

Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

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Page 1: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Deep Learning

Kauan Alves Carolina Maldonado

10/2018

Page 2: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Deep Learning & Machine Learning

Page 3: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Page 4: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

● Não são comparáveis ● DL é uma categoria de ML

Deep Learning & Machine Learning

Page 5: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Historia do DL

Page 6: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Historia do DL

Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Page 7: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Redes Neurais

• O que são?

• Do que se alimentam?

• Onde vivem?

Hoje, no Globo Reporter!

Page 8: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Redes Neurais

Page 9: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Redes Neurais

• Diversos métodos de criação • Resolver problemas simples e complexos.

Page 10: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Perceptron

Ilustrando o funcionamento de um Perceptron simples

(Apenas uma camada)

BACK-END (Como ele faz)

FRONT-END (O que ele faz)

Page 11: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

CNN – Redes Neurais Convulacionais

Page 12: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

CÓDIGO

O Dataset utilizado

(1 ou -1) – Significa a marca da cerveja

Significa a quantidade de cevada

Significa a quantidade de álcool

Page 13: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

CÓDIGO

Não se assustem se não entenderem nada! Eu também não entendo Define uma porcentagem de

dados para treinar a rede

Função que monta os conjuntos de teste e treino

Utiliza a função para montar os conjuntos e retorna os valores.

Page 14: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

CÓDIGO

Inicia uma época = 0 (para traçar o fim do treinamento), e um peso (w) para ajustar a rede

Inicia um loop e executa um treinamento, onde o U é a fórmula do perceptron

Verifica se não houve erro (significa que a rede finalizou o treinamento) ou se chegou ao fim das épocas e finaliza o treino

Page 15: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

CÓDIGO

Lê o Dataset utilizando a biblioteca Pandas

Cria o Perceptron Cria os conjuntos de teste e treino

Valida os dados e a acurácia

Executa o treinamento

Page 16: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Código

Page 17: Deep Learning - fatecead.com.br · Deep Learning & Machine Learning . Historia do DL . Historia do DL Se o Deep Learning existe desde 1940, porque só ficou popular nos dias atuais?

Obrigado!

Código: https://github.com/dunossauro/live-de-python/blob/master/codigo/Live35/perceptron_padrao.py

Lives: https://www.youtube.com/user/mendesesduardo

Video: https://www.youtube.com/watch?v=aircAruvnKk

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