Machine Learning for Hackers

Case Studies and Algorithms to Get You Started

Publisher: O'Reilly Media

Released: February 2012

Pages: 324

If you’re an experienced programmer interested in crunching data, this book will get you started with machine learning—a toolkit of algorithms that enables computers to train themselves to automate useful tasks. Authors Drew Conway and John Myles White help you understand machine learning and statistics tools through a series of hands-on case studies, instead of a traditional math-heavy presentation.

Each chapter focuses on a specific problem in machine learning, such as classification, prediction, optimization, and recommendation. Using the R programming language, you’ll learn how to analyze sample datasets and write simple machine learning algorithms. Machine Learning for Hackers is ideal for programmers from any background, including business, government, and academic research.

• Develop a naïve Bayesian classifier to determine if an email is spam, based only on its text
• Use linear regression to predict the number of page views for the top 1,000 websites
• Learn optimization techniques by attempting to break a simple letter cipher
• Compare and contrast U.S. Senators statistically, based on their voting records
• Build a “whom to follow” recommendation system from Twitter data

1. Chapter 1 Using R

   1. R for Machine Learning

2. Chapter 2 Data Exploration

   1. Exploration versus Confirmation

   2. What Is Data?

   3. Inferring the Types of Columns in Your Data

   4. Inferring Meaning

   5. Numeric Summaries

   6. Means, Medians, and Modes

   7. Quantiles

   8. Standard Deviations and Variances

   9. Exploratory Data Visualization

   10. Visualizing the Relationships Between Columns

3. Chapter 3 Classification: Spam Filtering

   1. This or That: Binary Classification

   2. Moving Gently into Conditional Probability

   3. Writing Our First Bayesian Spam Classifier

4. Chapter 4 Ranking: Priority Inbox

   1. How Do You Sort Something When You Don’t Know the Order?

   2. Ordering Email Messages by Priority

   3. Writing a Priority Inbox

5. Chapter 5 Regression: Predicting Page Views

   1. Introducing Regression

   2. Predicting Web Traffic

   3. Defining Correlation

6. Chapter 6 Regularization: Text Regression

   1. Nonlinear Relationships Between Columns: Beyond Straight Lines

   2. Methods for Preventing Overfitting

   3. Text Regression

7. Chapter 7 Optimization: Breaking Codes

   1. Introduction to Optimization

   2. Ridge Regression

   3. Code Breaking as Optimization

8. Chapter 8 PCA: Building a Market Index

   1. Unsupervised Learning

9. Chapter 9 MDS: Visually Exploring US Senator Similarity

   1. Clustering Based on Similarity

   2. How Do US Senators Cluster?

10. Chapter 10 kNN: Recommendation Systems

    1. The k-Nearest Neighbors Algorithm

    2. R Package Installation Data

11. Chapter 11 Analyzing Social Graphs

    1. Social Network Analysis

    2. Hacking Twitter Social Graph Data

    3. Analyzing Twitter Networks

12. Chapter 12 Model Comparison

    1. SVMs: The Support Vector Machine

    2. Comparing Algorithms

1. Works Citedbooks and publicationsbibliography ofresourcesbooks and publications; website resourcesstatisticsresources formachine learningresources forR programming languageresources for

2. Colophon

   
   
   
   
   
   
   
   
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   Title:

   Machine Learning for Hackers

   By:

   Drew Conway, John Myles White

   Publisher:

   O'Reilly Media

   Formats:

   • Print 
    
   • Ebook 
    
   • Safari Books Online

   Print:

   February 2012

   Ebook:

   February 2012

   Pages:

   324

   Print ISBN:

   978-1-4493-0371-6

   | ISBN 10:

   1-4493-0371-4

   Ebook ISBN:

   978-1-4493-0378-5

   | ISBN 10:

   1-4493-0378-1