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Library of transfer learners and domain-adaptive classifiers.

This package contains the following classifiers:


Python version


Installation can be done through pip:

pip install libtlda

The pip package installs all dependencies. To ensure that these dependencies that don't mess up your current python environment, you should set up a virtual environment. If you're using conda, this can be taken care of by running:

conda env create -f environment.yml
source activate libtlda


LibTLDA follows a similar structure as scikit-learn. There are several classes of classifiers that can be imported through for instance:

from libtlda.iw import ImportanceWeightedClassifier

With a data set of labeled source samples (X,y) and unlabeled target samples Z, the classifier can be called and trained using:

clf = ImportanceWeightedClassifier(iwe='kmm'), y, Z)

Given a trained classifier, predictions can be made as follows:

predictions = clf.predict(Z)

Check the documentation for more information on specific classes, methods and functions.


Matlab version


First clone the repository and change directory to matlab:

git clone
cd libTLDA/matlab/

In the matlab command window, call the installation script. It downloads all dependencies (minFunc, libsvm) and adds them, along with libtlda, to your path:



There is an example script that can be edited to test the different classifiers:



Questions, comments and bugs can be submitted in the issues tracker. Any particular method / algorithm / technique that you feel should be included, can be submitted as an issue as well.