Grassroots Machine Learning

A collection of examples and tutorials mainly in Python

datascience library

Simple library replicating several algorithms for educational purpose.

• Contains the Stats module (Blog posts)

TidyData

• Examples and tutorials for data wrangling
• Read the NHL data

Predict

Examples and tutorials for supervised regression

• Univariate linear regression
• Multiple linear regression
• Inference for linear regression
• Feature selection
• Overfitting
• Cross-validation
• Regularisation
• Forecast time series

Classify

Examples and tutorials for supervised classification

• Logistic Regression from scratch
• Logistic Regression using statsmodels
• Multi-class logistic regression in R
• Classification using K-nearest neighbours in Python
  • K-nn with hyper-parameters
  • K-nn with dimensionality reduction
• Classification using Support Vector Machines
• Classification using Decision Tree
• Classification using Random Forest
• Classification using Artificial Neural Network

Classify Text using NLP

Examples and tutorials for Natural Language Processing classification

• Word counting: the Hello Worlds of NLP
• Distributed word counting with Spark
• Text analyser (Python and Flask)
• Introduction to NLTK
• Sentiment Analysis

Connect

Examples and tutorials for supervised connection

• Recommender systems

Examples and tutorials for un-supervised connection

• Clustering using K-means in Python

Learn

Examples and tutorials for reinforcement learning, software agents

Visualization

Contains data visualization examples

• Bar Chart
• Box plot
• Scatter plot
• Histograms, 2D and 3D scatter, parallel coordinates, Andrew’s curves

Data dimensionality reduction

• PCA
• Isomap