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Data Science

Computer Science

Chapter 1 — Introduction to Data Science

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Lesson 1.4 : Data Science Lifecycle

Reading & Interactive Lesson

Lesson 1.4 FREE

Data Science Lifecycle

Reading Material & Notes

Data Science Lifecycle

The Data Science Lifecycle describes the major steps involved in solving a data-driven problem.

Major Steps

  1. Problem Definition: Understand the business or technical problem.
  2. Data Collection: Collect relevant data from suitable sources.
  3. Data Cleaning: Handle missing, duplicate and incorrect data.
  4. Exploratory Data Analysis: Study patterns and relationships in the data.
  5. Feature Engineering: Create useful variables for analysis or modeling.
  6. Model Building: Apply suitable statistical or machine learning techniques.
  7. Evaluation: Measure the quality of the solution.
  8. Deployment: Make the solution available for practical use.
  9. Monitoring: Continuously check and improve the solution.

Simple Workflow

Problem
   ↓
Data Collection
   ↓
Data Cleaning
   ↓
Data Analysis
   ↓
Model Building
   ↓
Evaluation
   ↓
Deployment

Course Curriculum

10 Chapters • 50 Lessons

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Chapter 4 — NumPy and Pandas

5 Lessons

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Lesson 4.1 : Introduction to NumPy
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Lesson 4.2 : NumPy Arrays and Indexing
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Lesson 4.3 : NumPy Operations and Statistics
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Lesson 4.4 : Introduction to Pandas
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Lesson 4.5 : Pandas Series and DataFrames
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Chapter 5 — Data Cleaning and Preprocessing

5 Lessons

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Lesson 5.1 : What is Data Cleaning?
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Lesson 5.2 : Handling Missing Data
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Lesson 5.3 : Removing Duplicates and Inconsistencies
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Lesson 5.4 : Data Transformation and Encoding
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Lesson 5.5 : Data Preprocessing Workflow
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Chapter 6 — Exploratory Data Analysis

5 Lessons

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Lesson 6.1 : What is Exploratory Data Analysis?
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Lesson 6.2 : Univariate Analysis
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Lesson 6.3 : Bivariate Analysis
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Lesson 6.4 : Multivariate Analysis
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Lesson 6.5 : EDA with Pandas
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Chapter 7 — Data Visualization

5 Lessons

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Lesson 7.1 : Introduction to Data Visualization
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Lesson 7.2 : Matplotlib Basics
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Lesson 7.3 : Charts and Graph Selection
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Lesson 7.4 : Seaborn for Data Analysis
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Lesson 7.5 : Building an Effective Data Visualization
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Chapter 8 — Statistics for Data Science

5 Lessons

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Lesson 8.1 : Introduction to Statistics
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Lesson 8.2 : Descriptive Statistics
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Lesson 8.3 : Probability Basics
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Lesson 8.4 : Correlation and Hypothesis Testing
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Lesson 8.5 : Statistics in Data Science
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Chapter 9 — Introduction to Machine Learning

5 Lessons

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Lesson 9.1 : Introduction to Machine Learning for Data Science
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Lesson 9.2 : Supervised Learning Basics
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Lesson 9.3 : Unsupervised Learning Basics
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Lesson 9.4 : Training and Testing Models
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Lesson 9.5 : Using Machine Learning in Data Science
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Chapter 10 — Data Science Projects

5 Lessons

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Lesson 10.1 : Planning a Data Science Project
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Lesson 10.2 : Data Science Project Workflow
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Lesson 10.3 : Building a Predictive Model
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Lesson 10.4 : Presenting Data Science Results
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Lesson 10.5 : Data Science Project Case Study
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Data Science

Chapters

10

Lessons

50

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