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Data Scientist

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Page 1: Begin with Data Scientist

Data Scientist

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Topics

• What is data science?

• What does data scientist do?

• How to become a data scientist?

• Opportunity

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What is data science?

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What is data science?How much data is generated every minute?

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What is data science?

Human-Generated Data

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What is data science?

Data

Data Science Process

Knowledge/Product

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What is data science?

Data Science

• Statistic • Math • …… • Software engineer

• social • heath care • finance • ….

Knowledge/Product

• Fraud detection • Product Recommendation • Frequency common purchase product • Influencer customer • ……

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What does data scientist do?

Data Scientist

Data Scientist

Data Scientist

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What does data scientist do?

Types of Data Scientist

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What does data scientist do?

https://en.wikipedia.org/wiki/Data_science

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What does data scientist do?

Data Collection

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What does data scientist do?

Processing and Cleansing

Make it ready for analysis process

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What does data scientist do?

Cleansing

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What does data scientist do?

Data Exploration

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What does data scientist do?The 5 questions data science answers

https://www.youtube.com/watch?v=0XyV91VYrDs

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What does data scientist do?

Modeling

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What does data scientist do?

Visualize and Communicate

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What does data scientist do?Fraud Detection

Build Data Product

Recommender System

Social Listening

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How to become a data scientist?Skills

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What is Machine Learning?

“Field of study that gives computers the ability to learn without being explicitly programmed”

- Arthur Samuel, 1959

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How is Machine Learning different from traditional programming?

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How is Machine Learning different from traditional programming?

if (eyes == 2) & (legs == 4) & (tail == 1)… then print “Cat”

“ Cat ”

Traditional programming

InputProgram

Computer

Output

- eyes - legs - tail - ….. - …..

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How is Machine Learning different from traditional programming?

if (eyes == 2) & (legs == 4) & (tail == 1)… then print “Cat”

“ Cat ”

Traditional programming

InputProgram

Computer

Output

- eyes - legs - tail - ….. - …..

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How is Machine Learning different from traditional programming?

“ Cat ”

Machine Learning

Input

Program

Computer

Output

Cat Recognition

- eyes - legs - tail - ….. - …..

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How does it work?

Feature Extraction

Learning Algorithm Evaluation

Optimization

Data

Model

Error

Predicted Value = f(X)We need f that Predicted Value close to True Value

(X)

(f)

Learning Process

Parameters

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How to become a data scientist?Tools

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How to become a data scientist?Tools

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How to become a data scientist?

Data Role Options

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How to become a data scientist?

http://101.datascience.community/wp-content/uploads/2016/11/data-science-engineer-software.png

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How to become a data scientist?

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How to become a data scientist?

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How to become a data scientist?

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Opportunity

Challenging Work

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Opportunity

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Opportunity

More Responsibilities