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什么是数据科学
数据科学是一个多学科领域，结合了技能
software engineering and statistics with domain experience to
support the end-to-end analysis of large and diverse data sets,
ultimately uncovering value for an organization and then
communicating that value to stakeholders as actionable results.
数据科学家
Person who is better at statistics than any software engineer and
better at software engineering than any statistician.
你需要什么技能？
* Mathematics - Calculus, Linear Algebra
* Statistics - Hypothesis, Testing, Regression
* Programming - SQL, R/Python
* Machine Learning - Supervised and Unsupervised Learning, Model Fitting
* Business/Product Intuition - Interpret and communicate results to non-technical audience
生命周期
1 - Identify or Formulate Problem
2 - Data Preparation
3 - Data Exploration
4 - Transform and Select
5 - Build Model
6 - Validate Model
7 - Deploy Model
8 - Evalute or Monitor Results