The Data Analysis and Visualization work package is responsible for performing deep analyses on the data masses generated by the applications developed by the other work packages integrating the Smart Metropolis Project. Such an analysis can be the main focus of the application or it can be secondary to process data generated by it. In both cases, the analysis aims at extracting useful information embedded in the data to support decision-making. The data analyses mainly use techniques from the Machine Learning and Statistical fields. However, this group is not solely constrained to these areas and also make use of Computational Vision, Information Theory, Natural Language Processing, etc.