The growth of Data Science, and, more in general, Artificial Intelligence tools largely influences the way people interact with the huge amount of information available on the Internet. In the context of a free knowledge community, we want to use those techniques not to replace, but to support human judgment. While communities take informed decisions, machines can help processing, linking and summarizing large amount of data, including different formats (text, images) and languages. In this talk, we will see how techniques such as Natural Language Processing, Graph analysis and Computer vision can help individuals and communities grow and improve Wikipedia content and community health by analyzing multilingual and unstructured information.