Information Theoretical Estimators (ITE) in Python
- is the redesigned, Python implementation of the Matlab/Octave ITE toolbox.
- can estimate numerous entropy, mutual information, divergence, association measures, cross quantities, and kernels on distributions.
- can be used to solve information theoretical optimization problems in a high-level way.
- comes with several demos.
- is free and open source: GNU GPLv3(>=).
entropy (H): Shannon entropy, Rényi entropy, Tsallis entropy (Havrda and Charvát entropy), Sharma-Mittal entropy, Phi-entropy (f-entropy).
mutual information (I): Shannon mutual information (total correlation, multi-information), Rényi mutual information, Tsallis mutual information, chi-square mutual information (squared-loss mutual information, mean square contingency), L2 mutual information, copula-based kernel dependency, kernel canonical correlation analysis, kernel generalized variance, multivariate version of Hoeffding's Phi, Hilbert-Schmidt independence criterion, distance covariance, distance correlation, Lancaster three-variable interaction.
divergence (D): Kullback-Leibler divergence (relative entropy, I directed divergence), Rényi divergence, Tsallis divergence, Sharma-Mittal divergence, Pearson chi-square divergence (chi-square distance), Hellinger distance, L2 divergence, f-divergence (Csiszár-Morimoto divergence, Ali-Silvey distance), maximum mean discrepancy (kernel distance, current distance), energy distance (N-distance; specifically the Cramer-Von Mises distance), Bhattacharyya distance, non-symmetric Bregman distance (Bregman divergence), symmetric Bregman distance, J-distance (symmetrised Kullback-Leibler divergence, J divergence), K divergence, L divergence, Jensen-Shannon divergence, Jensen-Rényi divergence, Jensen-Tsallis divergence.
association measures (A): multivariate extensions of Spearman's rho (Spearman's rank correlation coefficient, grade correlation coefficient), multivariate conditional version of Spearman's rho, lower and upper tail dependence via conditional Spearman's rho.
cross quantities (C): cross-entropy,
kernels on distributions (K): expected kernel (summation kernel, mean map kernel, set kernel, multi-instance kernel, ensemble kernel; specific convolution kernel), probability product kernel, Bhattacharyya kernel (Bhattacharyya coefficient, Hellinger affinity), Jensen-Shannon kernel, Jensen-Tsallis kernel, exponentiated Jensen-Shannon kernel, exponentiated Jensen-Rényi kernels, exponentiated Jensen-Tsallis kernels.
conditional entropy (condH): conditional Shannon entropy.
conditional mutual information (condI): conditional Shannon mutual information.
Citing: If you use the ITE toolbox in your research, please cite it [.bib].
Download the latest release:
Note: the evolution of the code is briefly summarized in CHANGELOG.txt.
ITE mailing list: You can sign up here.
ITE applications: Wiki. Feel free to add yours.