Jostar: Open-Source Feature Selection Library

Overview

Jostar is an open-source Python feature-selection library for regression and classification tasks. It brings together nine selection algorithms, including evolutionary optimization, swarm intelligence, and sequential search, with support for single- and multi-objective approaches. Through a consistent, Scikit-Learn-style interface, users can select informative features, tune algorithm hyperparameters, generate feature rankings, and visualize model performance. Detailed documentation makes the methods accessible for both experimentation and practical workflows. The library supports applications such as identifying informative wavelengths in hyperspectral imagery, helping researchers reduce input dimensionality and investigate which features contribute most to predictive performance.