During my winter spent in the Université de Montréal in Québec, I worked on a collective project with my classmates from the course algorithmes d’apprentissage. The long-term objective of the project was to develop new facilities to ease unsupervised learning tasks in python with the help of the Theano library, while our short-term motivation was to take part of the Unsupervised and Transfert Learning Challenge. Our team (LISA) did a honorable score in the contest, with a rather fruitful tool development.