Intro to Data Science

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Lesson 1: Introduction to Data Science

- Introduction to Data Science- What is a Data Scientist- Pi-Chaun (Data Scientist @ Google): What is Data Science?- Gabor (Data Scientist @ Twitter): What is Data Science?- Problems Solved by Data Science - Pandas- Dataframes- Create a New Dataframe

Lesson 2: Data Wrangling

- What is Data Wrangling?- Acquiring Data- Common Data Formats- What are Relational Databases?- Aadhaar Data - Aadhaar Data and Relational Databases- Introduction to Databases Schemas- API’s- Data in JSON Format- How to Access an API efficiently - Missing Values- Easy Imputation- Impute using Linear Regression- Tip of the Imputation Iceberg

Lesson 3: Data Analysis

- Statistical Rigor- Kurt (Data Scientist @ Twitter) - Why is Stats Useful?- Introduction to Normal Distribution- T Test- Welch T Test- Non-Parametric Tests- Non-Normal Data- Stats vs. Machine Learning- Different Types of Machine Learning- Prediction with Regression - Cost Function- How to Minimize Cost Function- Coefficients of Determination

Lesson 4: Data Visualization

- Effective Information Visualization- Napoleon's March on Russia- Don (Principal Data Scientist @ AT&T): Communicating Findings- Rishiraj (Principal Data Scientist @ AT&T): Communicating Findings Well- Visual Encodings- Perception of Visual Cues- Plotting in Python- Data Scales- Visualizing Time Series Data

Lesson 5: MapReduce

- Big Data and MapReduce- Basics of MapReduce- Mapper- Reducer- MapReduce with Aadhaar Data- MapReduce with Subway Data




  • Dave Holtz - Dave Holtz is currently a data scientist at Airbnb. Before Airbnb, he was formerly a data science engineer at Yub, the world's first online-to-offline affiliate network, and he also worked as a product manager and data scientist at TrialPay. Dave holds an M.A. in physics and astronomy from the Johns Hopkins University and a B.A. in physics from Princeton University. In addition to data science, Dave is passionate about cosmology, smart cities, music, theater, and improv comedy.


Udacity is a for-profit educational organization founded by Sebastian Thrun, David Stavens, and Mike Sokolsky offering massive open online courses (MOOCs). According to Thrun, the origin of the name Udacity comes from the company's desire to be "audacious for you, the student". While it originally focused on offering university-style courses, it now focuses more on vocational courses for professionals.

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