Machine Learning - Aprendendo com a experiência - Oi Internet Tech Talk
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Transcript of Machine Learning - Aprendendo com a experiência - Oi Internet Tech Talk
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MACHINE LEARNING APRENDENDO COM A EXPERIÊNCA
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WHO I AM { “name”: “Wagner Renzi”,
“job”: “Development Manager”,
“webExperience”: “+10”
}
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O QUE É
MACHINE LEARNING?
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"A computer program is said to learn from experience E with respect to some class of tasks T and
performance measure P if its performance at tasks in T, as measured by P, improves with experience E."
TOM MITCHELL
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WTF?
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Programa de computador
Aprende com a experiência
Na execução de tarefas E tem performance medida
Experience Performance Tasks
… e sua performance na tarefa melhora quanto mais experiência tiver
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MACHINE LEARNING
“Conjunto de algoritmos e técnicas que fornece aos programas de computador a habilidade de aprender sem ser explicitamente programado”
Training Set - Documento - Imagens - Etc..
Machine Learning Algorithm
Predective Model New Document Expected Label
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MACHINE LEARNING PRINCIPAIS TIPOS
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SUPERVISED LEARNING
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name vitamin A % vitamin C % ... protein (g) fiber (g) classification
apple 1 7 ... 0.3 2.40 fruit
avocado 2 16 ... 2 7.00 fruit
banana 1 14 ... 1.1 2.60 fruit
beetroot 0 8 ... 1.6 2.80 vegetable
blackberry 4 35 ... 1.4 5.00 fruit
blueberry 1 16 ... 0.7 2.40 fruit
broccoli 12 148 ... 2.8 2.60 vegetable
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UNSUPERVISED LEARNING
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HANDS ON
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https://archive.ics.uci.edu/ml/datasets/Balloons
UNIVERSITY OF CALIFORNIA, IRVINE
BALLOONS
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https://archive.ics.uci.edu/ml/datasets/Balloons
ATTRIBUTE INFORMATION: COLOR YELLOW, PURPLE SIZE LARGE, SMALL ACT STRETCH, DIP AGE ADULT, CHILD INFLATED T, F
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https://archive.ics.uci.edu/ml/datasets/Balloons
INFLATED IS TRUE IF
AGE=ADULT OR ACT=STRETCH
Training Set - Documento - Imagens - Etc..
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https://archive.ics.uci.edu/ml/datasets/Balloons
New Documents
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https://archive.ics.uci.edu/ml/datasets/Balloons
Open source machine learning and data visualization
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#1 MODEL EVALUATION AND SCORING
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#2 MAKING PREDICTIONS
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TOOLS
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http://orange.biolab.si/
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http://www.cs.waikato.ac.nz/ml/weka/
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https://rapidminer.com/
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http://www.knime.org/
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https://www.ibm.com/marketplace/cloud/spss-modeler/
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MACHINE LEARNING
EXEMPLOS CLÁSSICOS
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SPAM FILTERING SPAM FILTERING
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SPAM FILTERING RECONHECIMENTO FACIAL
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SPAM FILTERING MOTOR DE RECOMENDAÇÃO
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MACHINE LEARNING
OUTRAS APLICAÇÕES
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HEALTH CARE
http://www.sas.com/en_us/insights/analytics/machine-learning.html
SENSORES (AVALIAÇÃO EM REAL TIME) DIAGNÓSTICOS C/ ANÁLISE DE DADOS
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SERVIÇOS FINANCEIROS
http://www.sas.com/en_us/insights/analytics/machine-learning.html
IMPEDIR FRAUDES OPORTUNIDADES DE INVESTIMENTO AJUDAR INVESTIDORES A SABER QUANDO NEGOCIAR
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TRANSPORTE
http://www.sas.com/en_us/insights/analytics/machine-learning.html
ROTAS EFICIENTES PREVISÃO DE PROBLEMAS
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MARKETING
SEGMENTAR BASE DE CLIENTES CAMPANHAS DIRECIONADAS
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SEGUROS
ANÁLISE DE PERFIL COM RISCO
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EDUCAÇÃO
RETENÇÃO DE ALUNOS C/ TENDÊNCIA A DESISTIR DO CURSO
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“Nos próximos 10 anos, todo aplicativo vai incorporar algum nível da Inteligência Artificial”
David Cearley, vice-presidente da Gartner
Symposium Itxpo, 2016
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REFERÊNCIAS Coursera - Andrew NG https://www.coursera.org/learn/machine-learning/ Uma introdução prática ao Machine Learning https://www.infoq.com/br/presentations/machine-learning-intro Orange Tutorials https://www.youtube.com/channel/UClKKWBe2SCAEyv7ZNGhIe4g Apimente seu site com Machine Learning (infoq) https://www.Infoq.Com/br/presentations/apimente-seu-site-com-machine-learning Wikipedia – Machine Learning https://en.wikipedia.org/wiki/Machine_learning Use Cases of Machine Learning and Big Data Science (By Function and Industry) https://www.linkedin.com/pulse/use-cases-machine-learning-big-data-science-function-shekhar-bhartiya Stack Exchange http://stats.stackexchange.com/q/144154
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THE END;