fa.bianp.net

New examples in scikits.learn 0.6

Category: General, scikit-learn, Tecnologí­a

Latest release of scikits.learn comes with an awesome collection of examples. These are some of my favorites:

Faces recognition

This example by Olivier Grisel, downloads a 58MB faces dataset from Labeled Faces in the Wild, and is able to perform PCA for feature extraction and SVC for classification, yielding …

Support Vector machines with custom kernels using scikits.learn

Category: General, scikit-learn, Tecnologí­a

It is now possible (using the development version as of may 2010) to use Support Vector Machines with custom kernels in scikits.learn. How to use it couldn't be more simple: you just pass a callable (the kernel) to the class constructor). For example, a linear kernel would be implemented …

Plot the maximum margin hyperplane with scikits.learn

Category: General, scikit-learn, Tecnologí­a

Suppose some given data points each belong to one of two classes, and the goal is to decide which class a new data point will be in. In the case of support vector machines, a data point is viewed as a p-dimensional vector (2-dimensional in this example), and we want …

Fast bindings for LibSVM in scikits.learn

Category: General, scikit-learn, Tecnologí­a

LibSVM is a C++ library that implements several Support Vector Machine algorithms that are commonly used in machine learning. It is a fast library that has no dependencies and most machine learning frameworks bind it in some way or another. LibSVM comes with a Python interface written in swig, but …

scikit-learn project on sourceforge

Category: General, scikit-learn, Tecnologí­a

This week we created a sourceforge project to host our development of scikit-learn. Although the project already had a directory in scipy's repo, we needed more flexibility in the user management and in the mailing list creation, so we opted for SourceForge. To be honest, after using git and Google …