Underfitting vs.
  • References/Python/scikit-learn/Examples/Model Selection

This example demonstrates the problems of underfitting and overfitting and how we can use linear regression with polynomial features to approximate nonlinear functions

2025-01-10 15:47:30
Orthogonal Matching Pursuit
  • References/Python/scikit-learn/Examples/Generalized Linear Models

Using orthogonal matching pursuit for recovering a sparse signal from a noisy measurement encoded with a dictionary print(__doc__)

2025-01-10 15:47:30
OOB Errors for Random Forests
  • References/Python/scikit-learn/Examples/Ensemble methods

The RandomForestClassifier is trained using bootstrap aggregation, where each new tree is fit from a bootstrap sample of the training observations

2025-01-10 15:47:30
Concentration Prior Type Analysis of Variation Bayesian Gaussian Mixture
  • References/Python/scikit-learn/Examples/Gaussian Mixture Models

This example plots the ellipsoids obtained from a toy dataset (mixture of three Gaussians) fitted by the Baye

2025-01-10 15:47:30
Online learning of a dictionary of parts of faces
  • References/Python/scikit-learn/Examples/Clustering

This example uses a large dataset of faces to learn a set of 20 x 20 images patches that constitute faces. From the programming standpoint

2025-01-10 15:47:30
Topic extraction with Non-negative Matrix Factorization and Latent Dirichlet Allocation
  • References/Python/scikit-learn/Examples/Examples based on real world datasets

This is an example of applying Non-negative Matrix Factorization and Latent Dirichlet Allocation on a

2025-01-10 15:47:30
Recognizing hand-written digits
  • References/Python/scikit-learn/Examples/Classification

An example showing how the scikit-learn can be used to recognize images of hand-written digits. This example is commented in the

2025-01-10 15:47:30
Pipelining
  • References/Python/scikit-learn/Examples/General examples

The PCA does an unsupervised dimensionality reduction, while the logistic regression does the prediction. We use a GridSearchCV to

2025-01-10 15:47:30
Cross-validation on Digits Dataset Exercise
  • References/Python/scikit-learn/Examples/Tutorial exercises

A tutorial exercise using Cross-validation with an SVM on the Digits dataset. This exercise is used in the

2025-01-10 15:47:30
Train error vs Test error
  • References/Python/scikit-learn/Examples/Model Selection

Illustration of how the performance of an estimator on unseen data (test data) is not the same as the performance on training data. As the regularization increases

2025-01-10 15:47:30