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Machine Learning

Master machine learning fundamentals in four hands-on courses

About This Specialization This Specialization from leading researchers at the University of Washington introduces you to the exciting, high-demand field of Machine Learning. Through a series of practical case studies, you will gain applied experience in major areas of Machine Learning including Prediction, Classification, Clustering, and Information Retrieval. You will learn to analyze large and complex datasets, create systems that adapt and improve over time, and build intelligent applications that can make predictions from data. Created by: Industry Partners: 4 courses Follow the suggested order or choose your own. Projects Designed to help you practice and apply the skills you learn. Certificates Highlight your new skills on your resume or

Machine Learning

Machine Learning

About this course: Machine learning is the science of getting computers to act without being explicitly programmed. In the past decade, machine learning has given us self-driving cars, practical speech recognition, effective web search, and a vastly improved understanding of the human genome. Machine learning is so pervasive today that you probably use it dozens of times a day without knowing it. Many researchers also think it is the best way to make progress towards human-level AI. In this class, you will learn about the most effective machine learning techniques, and gain practice implementing them and getting them to work for yourself. More importantly, you'll learn about not only the theoretical underpinnings of learning, but also gain the practical know-how needed to quickly and powerfully apply these techniques to new problems. Finally, you'll learn about some of Silicon Valley's best practices in innovation as it pertains to machine learning and AI. This course provides a broad introduction to machine learning, datamining, and statistical pattern recognition. Topics include: (i) Supervised learning (parametric/non-parametric algorithms, support vector machines, kernels, neural networks). (ii) Unsupervised learning (clustering, dimensionality reduction, recommender systems, deep learning). (iii) Best practices in machine learning (bias/variance theory; innovation process in machine learning and AI). The course will also draw from numerous case studies and applications, so that you'll also learn how to apply learning algorithms to building smart robots (perception, control), text understanding (web search, anti-spam), computer vision, medical informatics, audio, database mining, and other areas.

Created by:  Stanford University

  • Andrew Ng
    Taught by:  Andrew Ng, Associate Professor, Stanford University; Chief Scientist, Baidu; Chairman and Co-founder, Coursera
EnglishSubtitles: Spanish, Hindi, Japanese, Chinese (Simplified)
How To PassPass all graded assignments to complete the course.
User Ratings
Average User Rating 4.9See what learners said
Welcome to Machine Learning! In this module, we introduce the core idea of teaching a computer to learn concepts using data—without being explicitly programmed. The Course Wiki is under construction. Please visit the resources tab for the most complete and up-to-date information.
5 videos10 readings
  1. Video: Welcome to Machine Learning!
  2. Reading: Machine Learning Honor Code
  3. Video: Welcome
  4. Video: What is Machine Learning?
  5. Reading: What is Machine Learning?
  6. Reading: How to Use Discussion Forums
  7. Video: Supervised Learning
  8. Reading: Supervised Learning
  9. Video: Unsupervised Learning
  10. Reading: Unsupervised Learning
  11. Reading: Who are Mentors?
  12. Reading: Get to Know Your Classmates
  13. Reading: Frequently Asked Questions
  14. Reading: Lecture Slides
  15. Reading: Machine Learning Course Wiki
Graded: Introduction
Linear Regression with One Variable
Linear regression predicts a real-valued output based on an input value. We discuss the application of linear regression to housing price prediction, present the notion of a cost function, and introduce the gradient descent method for learning. 
7 videos8 readings
  1. Video: Model Representation
  2. Reading: Model Representation
  3. Video: Cost Function
  4. Reading: Cost Function
  5. Video: Cost Function - Intuition I
  6. Reading: Cost Function - Intuition I
  7. Video: Cost Function - Intuition II
  8. Reading: Cost Function - Intuition II
  9. Video: Gradient Descent
  10. Reading: Gradient Descent
  11. Video: Gradient Descent Intuition
  12. Reading: Gradient Descent Intuition
  13. Video: Gradient Descent For Linear Regression
  14. Reading: Gradient Descent For Linear Regression
  15. Reading: Lecture Slides
Graded: Linear Regression with One Variable
Linear Algebra Review
This optional module provides a refresher on linear algebra concepts. Basic understanding of linear algebra is necessary for the rest of the course, especially as we begin to cover models with multiple variables. 
6 videos7 readings1 reading
  1. Video: Matrices and Vectors
  2. Reading: Matrices and Vectors
  3. Video: Addition and Scalar Multiplication
  4. Reading: Addition and Scalar Multiplication
  5. Video: Matrix Vector Multiplication
  6. Reading: Matrix Vector Multiplication
  7. Video: Matrix Matrix Multiplication
  8. Reading: Matrix Matrix Multiplication
  9. Video: Matrix Multiplication Properties
  10. Reading: Matrix Multiplication Properties
  11. Video: Inverse and Transpose
  12. Reading: Inverse and Transpose
  13. Reading: Lecture Slides
  14. Practice Quiz: Linear Algebra
Linear Regression with Multiple Variables
What if your input has more than one value? In this module, we show how linear regression can be extended to accommodate multiple input features. We also discuss best practices for implementing linear regression. 
8 videos16 readings
  1. Reading: Setting Up Your Programming Assignment Environment
  2. Reading: Installing MATLAB
  3. Reading: Installing Octave on Windows
  4. Reading: Installing Octave on Mac OS X (10.10 Yosemite and 10.9 Mavericks and Later)
  5. Reading: Installing Octave on Mac OS X (10.8 Mountain Lion and Earlier)
  6. Reading: Installing Octave on GNU/Linux
  7. Reading: More Octave/MATLAB resources
  8. Video: Multiple Features
  9. Reading: Multiple Features
  10. Video: Gradient Descent for Multiple Variables
  11. Reading: Gradient Descent For Multiple Variables
  12. Video: Gradient Descent in Practice I - Feature Scaling
  13. Reading: Gradient Descent in Practice I - Feature Scaling
  14. Video: Gradient Descent in Practice II - Learning Rate
  15. Reading: Gradient Descent in Practice II - Learning Rate
  16. Video: Features and Polynomial Regression
  17. Reading: Features and Polynomial Regression
  18. Video: Normal Equation
  19. Reading: Normal Equation
  20. Video: Normal Equation Noninvertibility
  21. Reading: Normal Equation Noninvertibility
  22. Video: Working on and Submitting Programming Assignments
  23. Reading: Programming tips from Mentors
  24. Reading: Lecture Slides
Graded: Linear Regression with Multiple Variables
Octave/Matlab Tutorial
This course includes programming assignments designed to help you understand how to implement the learning algorithms in practice. To complete the programming assignments, you will need to use Octave or MATLAB. This module introduces Octave/Matlab and shows you how to submit an assignment.
6 videos1 reading
  1. Video: Basic Operations
  2. Video: Moving Data Around
  3. Video: Computing on Data
  4. Video: Plotting Data
  5. Video: Control Statements: for, while, if statement
  6. Video: Vectorization
  7. Reading: Lecture Slides
  8. Programming: Linear Regression
Graded: Octave/Matlab Tutorial
Logistic Regression
Logistic regression is a method for classifying data into discrete outcomes. For example, we might use logistic regression to classify an email as spam or not spam. In this module, we introduce the notion of classification, the cost function for logistic regression, and the application of logistic regression to multi-class classification.
7 videos8 readings
  1. Video: Classification
  2. Reading: Classification
  3. Video: Hypothesis Representation
  4. Reading: Hypothesis Representation
  5. Video: Decision Boundary
  6. Reading: Decision Boundary
  7. Video: Cost Function
  8. Reading: Cost Function
  9. Video: Simplified Cost Function and Gradient Descent
  10. Reading: Simplified Cost Function and Gradient Descent
  11. Video: Advanced Optimization
  12. Reading: Advanced Optimization
  13. Video: Multiclass Classification: One-vs-all
  14. Reading: Multiclass Classification: One-vs-all
  15. Reading: Lecture Slides
Graded: Logistic Regression
Machine learning models need to generalize well to new examples that the model has not seen in practice. In this module, we introduce regularization, which helps prevent models from overfitting the training data.  
4 videos5 readings
  1. Video: The Problem of Overfitting
  2. Reading: The Problem of Overfitting
  3. Video: Cost Function
  4. Reading: Cost Function
  5. Video: Regularized Linear Regression
  6. Reading: Regularized Linear Regression
  7. Video: Regularized Logistic Regression
  8. Reading: Regularized Logistic Regression
  9. Reading: Lecture Slides
  10. Programming: Logistic Regression
Graded: Regularization
Neural Networks: Representation
Neural networks is a model inspired by how the brain works. It is widely used today in many applications: when your phone interprets and understand your voice commands, it is likely that a neural network is helping to understand your speech; when you cash a check, the machines that automatically read the digits also use neural networks.
7 videos6 readings
  1. Video: Non-linear Hypotheses
  2. Video: Neurons and the Brain
  3. Video: Model Representation I
  4. Reading: Model Representation I
  5. Video: Model Representation II
  6. Reading: Model Representation II
  7. Video: Examples and Intuitions I
  8. Reading: Examples and Intuitions I
  9. Video: Examples and Intuitions II
  10. Reading: Examples and Intuitions II
  11. Video: Multiclass Classification
  12. Reading: Multiclass Classification
  13. Reading: Lecture Slides
  14. Programming: Multi-class Classification and Neural Networks
Graded: Neural Networks: Representation
Neural Networks: Learning
In this module, we introduce the backpropagation algorithm that is used to help learn parameters for a neural network. At the end of this module, you will be implementing your own neural network for digit recognition.  
8 videos8 readings
  1. Video: Cost Function
  2. Reading: Cost Function
  3. Video: Backpropagation Algorithm
  4. Reading: Backpropagation Algorithm
  5. Video: Backpropagation Intuition
  6. Reading: Backpropagation Intuition
  7. Video: Implementation Note: Unrolling Parameters
  8. Reading: Implementation Note: Unrolling Parameters
  9. Video: Gradient Checking
  10. Reading: Gradient Checking
  11. Video: Random Initialization
  12. Reading: Random Initialization
  13. Video: Putting It Together
  14. Reading: Putting It Together
  15. Video: Autonomous Driving
  16. Reading: Lecture Slides
  17. Programming: Neural Network Learning
Graded: Neural Networks: Learning
Advice for Applying Machine Learning
Applying machine learning in practice is not always straightforward. In this module, we share best practices for applying machine learning in practice, and discuss the best ways to evaluate performance of the learned models.  
7 videos7 readings
  1. Video: Deciding What to Try Next
  2. Video: Evaluating a Hypothesis
  3. Reading: Evaluating a Hypothesis
  4. Video: Model Selection and Train/Validation/Test Sets
  5. Reading: Model Selection and Train/Validation/Test Sets
  6. Video: Diagnosing Bias vs. Variance
  7. Reading: Diagnosing Bias vs. Variance
  8. Video: Regularization and Bias/Variance
  9. Reading: Regularization and Bias/Variance
  10. Video: Learning Curves
  11. Reading: Learning Curves
  12. Video: Deciding What to Do Next Revisited
  13. Reading: Deciding What to do Next Revisited
  14. Reading: Lecture Slides
  15. Programming: Regularized Linear Regression and Bias/Variance
Graded: Advice for Applying Machine Learning
Machine Learning System Design
To optimize a machine learning algorithm, you’ll need to first understand where the biggest improvements can be made. In this module, we discuss how to understand the performance of a machine learning system with multiple parts, and also how to deal with skewed data.
5 videos3 readings
  1. Video: Prioritizing What to Work On
  2. Reading: Prioritizing What to Work On
  3. Video: Error Analysis
  4. Reading: Error Analysis
  5. Video: Error Metrics for Skewed Classes
  6. Video: Trading Off Precision and Recall
  7. Video: Data For Machine Learning
  8. Reading: Lecture Slides
Graded: Machine Learning System Design
Support Vector Machines
Support vector machines, or SVMs, is a machine learning algorithm for classification. We introduce the idea and intuitions behind SVMs and discuss how to use it in practice.  
6 videos1 reading
  1. Video: Optimization Objective
  2. Video: Large Margin Intuition
  3. Video: Mathematics Behind Large Margin Classification
  4. Video: Kernels I
  5. Video: Kernels II
  6. Video: Using An SVM
  7. Reading: Lecture Slides
  8. Programming: Support Vector Machines
Graded: Support Vector Machines
Unsupervised Learning
We use unsupervised learning to build models that help us understand our data better. We discuss the k-Means algorithm for clustering that enable us to learn groupings of unlabeled data points. 
5 videos1 reading
  1. Video: Unsupervised Learning: Introduction
  2. Video: K-Means Algorithm
  3. Video: Optimization Objective
  4. Video: Random Initialization
  5. Video: Choosing the Number of Clusters
  6. Reading: Lecture Slides
Graded: Unsupervised Learning
Dimensionality Reduction
In this module, we introduce Principal Components Analysis, and show how it can be used for data compression to speed up learning algorithms as well as for visualizations of complex datasets.  
7 videos1 reading
  1. Video: Motivation I: Data Compression
  2. Video: Motivation II: Visualization
  3. Video: Principal Component Analysis Problem Formulation
  4. Video: Principal Component Analysis Algorithm
  5. Video: Reconstruction from Compressed Representation
  6. Video: Choosing the Number of Principal Components
  7. Video: Advice for Applying PCA
  8. Reading: Lecture Slides
  9. Programming: K-Means Clustering and PCA
Graded: Principal Component Analysis
Anomaly Detection
Given a large number of data points, we may sometimes want to figure out which ones vary significantly from the average. For example, in manufacturing, we may want to detect defects or anomalies. We show how a dataset can be modeled using a Gaussian distribution, and how the model can be used for anomaly detection.
8 videos1 reading
  1. Video: Problem Motivation
  2. Video: Gaussian Distribution
  3. Video: Algorithm
  4. Video: Developing and Evaluating an Anomaly Detection System
  5. Video: Anomaly Detection vs. Supervised Learning
  6. Video: Choosing What Features to Use
  7. Video: Multivariate Gaussian Distribution
  8. Video: Anomaly Detection using the Multivariate Gaussian Distribution
  9. Reading: Lecture Slides
Graded: Anomaly Detection
Recommender Systems
When you buy a product online, most websites automatically recommend other products that you may like. Recommender systems look at patterns of activities between different users and different products to produce these recommendations. In this module, we introduce recommender algorithms such as the collaborative filtering algorithm and low-rank matrix factorization.
6 videos1 reading
  1. Video: Problem Formulation
  2. Video: Content Based Recommendations
  3. Video: Collaborative Filtering
  4. Video: Collaborative Filtering Algorithm
  5. Video: Vectorization: Low Rank Matrix Factorization
  6. Video: Implementational Detail: Mean Normalization
  7. Reading: Lecture Slides
  8. Programming: Anomaly Detection and Recommender Systems
Graded: Recommender Systems
Large Scale Machine Learning
Machine learning works best when there is an abundance of data to leverage for training. In this module, we discuss how to apply the machine learning algorithms with large datasets. 
6 videos1 reading
  1. Video: Learning With Large Datasets
  2. Video: Stochastic Gradient Descent
  3. Video: Mini-Batch Gradient Descent
  4. Video: Stochastic Gradient Descent Convergence
  5. Video: Online Learning
  6. Video: Map Reduce and Data Parallelism
  7. Reading: Lecture Slides
Graded: Large Scale Machine Learning
Application Example: Photo OCR
Identifying and recognizing objects, words, and digits in an image is a challenging task. We discuss how a pipeline can be built to tackle this problem and how to analyze and improve the performance of such a system.  
5 videos1 reading
  1. Video: Problem Description and Pipeline
  2. Video: Sliding Windows
  3. Video: Getting Lots of Data and Artificial Data
  4. Video: Ceiling Analysis: What Part of the Pipeline to Work on Next
  5. Reading: Lecture Slides
  6. Video: Summary and Thank You
Graded: Application: Photo OCR
How It Works
Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.
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Stanford University
The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is an American private research university located in Stanford, California on an 8,180-acre (3,310 ha) campus near Palo Alto, California, United States.


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