About this repository

This repository is meant to be a growing collection of interesting and useful algorithms implemented in Python and presented in IPython notebooks. IPython notebooks, because they offer a convenient way for describing the algorithm, benchmarking, maybe even visualization, and eventually sharing and viewing.

I am looking forward to your contributions, suggestions, and ideas

If you have any suggestions or want to make additions, I would be very happy if you could send me

• an email,
• leave me a message on google+,
• or even send me a tweet on twitter (given you can fit it within the 140 character limit ;)).
• Or even better: It would be great if you would simply fork this project and send me a pull request.

Categories

Algorithm Essentials

Greedy Algorithms

• Introduction to Greedy Algorithms [ GitHub ] [ Jupyter nbviewer ]
• More Greedy Algorithm Examples [ GitHub ] [ Jupyter nbviewer ]
• Breadth-First Search [cross-linked] [ GitHub ] [ Jupyter nbviewer ]
• Dijkstra's Algorithm [cross-linked] [ GitHub ] [ Jupyter nbviewer ]

Divide-and-Conquer Algorithms

• Introduction to Divide-and-Conquer Algorithms[ GitHub ] [ Jupyter nbviewer ]
• Binary Search [cross-linked] [ GitHub ] [ Jupyter nbviewer ]
• Recursion Examples [ GitHub ] [ Jupyter nbviewer ]

Other

• FizzBuzz [ GitHub ] [ Jupyter nbviewer ]

Sorting Algorithms

• Selection Sort [ GitHub ] [ Jupyter nbviewer ]
• Bubble Sort [ GitHub ] [ Jupyter nbviewer ]
• QuickSort [ GitHub ] [ Jupyter nbviewer ]

Data Structures

• Implementing a Simple Hash Table [ GitHub ] [ Jupyter nbviewer ]
• Bloom Filters [ GitHub ] [ Jupyter nbviewer ]
• Singly Linked List [ GitHub ] [ Jupyter nbviewer ]
• Stacks [ GitHub ] [ Jupyter nbviewer ]
• Queues and Deques [ GitHub ] [ Jupyter nbviewer ]

Search Algorithms

• Binary Search [ GitHub ] [ Jupyter nbviewer ]
• Breadth-First Search [ GitHub ] [ Jupyter nbviewer ]
• Dijkstra's Algorithm [ GitHub ] [ Jupyter nbviewer ]

Statistical Analysis

• Linear regression via the least squares fit method [ GitHub ] [ Jupyter nbviewer ]
• Dixon's Q test to identify outliers for small sample sizes [ GitHub ] [ Jupyter nbviewer ]
• Rejection sampling [ GitHub ] [ Jupyter nbviewer ]

Machine Learning

• Please see my pattern_classification repository at https://github.com/rasbt/pattern_classification

Geometry

• Counting points inside a hypercube [ GitHub ] [ Jupyter nbviewer ]
• Vectorizing a classic for-loop in NumPy for calculating Euclidean distances [ GitHub ] [ Jupyter nbviewer ]

Efficiency

• Finding the Maximum Pairwise Product [ GitHub ] [ Jupyter nbviewer ]
• Fibonacci Numbers [ GitHub ] [ Jupyter nbviewer ]
• Greatest Common Divisor [ GitHub ] [ Jupyter nbviewer ]