deep learning: passado, presente e futuro · 2019-05-16 · deep learning: passado, presente e...
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Deep Learning: Passado, Presente e Futuro
Leonardo de Barros, PhDPrincipal Solution EngineerOracle Cloud Platform
Abril/2019
1Confidential – Oracle Internal/Restricted/Highly Restricted
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•Cientista da Computação: doutor eminteligência artificial, com foco algoritmosde treinamentos e também abordagens deprocessamento de sinais, modelos deséries temporais, ML&DP.
• Pesquisas atuais: blockchain para IIoT,deep learning para reconhecimento deimagens.
Antes de Tudo...
Leonardo de Barros, PhD
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Definições Importantes
1950’s 1980’s 2010’s
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A disrupçãoé agora
Custo e "Time-to-Market para novos serviços
Escala de mercadoendereçável
Muitos dados sobre clientes disponíveis em muitos canais
Novos concorrentes estão interrompendo
as empresas tradicionais em um ritmo muito rápido
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Deep Learning
Confidential – Oracle Internal
*Amint Ray, PhD
Múltiplos níveisde apresentaçãoe representaçãoem váriascamadas ocultas(“deep”) entre entrada e saída
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Técnicas de Machine Learning e Deep Learning
Foco em RegressãoClassificaçãoClusterizaçãoDetecção de AnomaliaAnálise de Grafos
Prática em Regras de associaçãoSéries de tempoRede neuralAnálise espacial
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Regressão
É utilizada para estimar valores reais (custo de residências, número de chamadas, vendas totais, etc) baseado em variáveis contínuas.
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REGRESSÃO(linear ou logistica)
Previsão de números
Determinar fatores de grupo
Estimar preços ótimos
Prever acontecimentos
-10 0 10 20 30 40 50 60
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Classificação – Supervisionada
?Árvore de Decisão
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CLASSIFICAÇÃO
Associação de uma classe conhecida
Identifique possíveis grupos de alto valor
Encontrar grupos com probabilidade de insatifação
Detecção de Fraude
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Classificação – Não Supervisionada
?Agrupamento de dados com base em relações entre as variáveis nos dados. Também pode ser usada para reduzir o número de dimensões em um conjunto de dados para concentrar somente nos atributos mais úteis, ou para detectar tendências.
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CLASSIFICAÇÃO
Associação de uma classe inferida
Segmentação de grupos
Avaliação de Crédito de Risco
Similaridade Documental
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Melhore a experiência de jogos
• Gerencie e analise até 300 bilhões de eventos por dia
• Entenda e segmente jogadores• Rapidamente corrigir problemas de
jogo
Oracle Confidential – Internal/Restricted/Highly Restricted
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Algoritmos para Deep Learning
Confidential – Oracle Internal
*Amint Ray, PhD
Alguns algoritmos populares para Deep Learning:
• Perceptron multicamada (MLP);• Redes neurais convolucionais
profundas (CNN);• Redes residuais profundas;• Redes capsulares;• Redes neurais recorrentes;• Redes LSTM (Long Short Term
Memory);• Máquina Boltzmann (BM).
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*Amint Ray, PhD
Treinar um agente (programa, código, algoritmo, etc.) a interagir em um Ambientepor meio de Ações para atingir um Objetivo. Por meio de Recompensas ou punições dadas a esse agente, ele irá aprender quais ações deve executar para aumentar a recompensa e atingir o objetivo –Processo de Decisão de Markov.
Deep Reinforcement Learning
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Deep Reinforcement Learning
Confidential – Oracle Internal
*Amint Ray, PhD
Abordagens:
• Tentativa e Erro;• Planejamento de Modelos.
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Deep Reinforcement Learning
Confidential – Oracle Internal
*Paulo Vasconcelos
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No Passado...
Confidential – Oracle Internal
Os conceitos de Deep Learning não sãonovos:
• 1943, com Warren McCulloch utilizando neurônios binários;
• 1950, com Alan Turing utilizando o teste da capacidade de máquinaexibindo comportamento humano;
• …• 2009, com o ImageNet com 14 milhões
de imagens rotuladas;• 2009, Andrew Ng com as GPUs;• …• 2014, com o DeepMind com
Reinforcement Learning e Deep Neural Networks.
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No Passado...
Confidential – Oracle Internal
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No Presente...
Confidential – Oracle Internal
Modelos híbridos e deep learning quântico: adequação das abordagensatuais e abordagens novas.
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No Futuro...
Confidential – Oracle Internal
• Automated Machine Learning;• Modelos de aprendizagem
concorrentes;• Modelos de aprendizagem
híbridos;• Inteligência Artificial Explicável;• Inteligência Artificial Quântica.
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Legal, mas e eu?
•Cursos on line e free;
• Libs on line e free;
•Grupos de estudos – AI Brasil;
•Aprendam inglês;
•Comunidades.
• Links e referências:–https://edgy.app/top-10-free-deep-learning-moocs
–https://paulovasconcellos.com.br/explicando-deep-reinforcement-learning-com-super-mario-ao-inv%C3%A9s-de-matem%C3%A1tica-4c77392cc733
–https://amitray.com/deep-learning-past-present-and-future-a-review/
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Q&ALeonardo de Barros, PhD.
Email: [email protected]
Github: leobarros79
Twitter: leobarros79
Linkedin: leobarros79
23
Faça um Hands on
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Faça um Trial
Visite nosso Estande
Ganhe outro Brinde
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