Stockholm Univeristy and University of Aveiro CISMOB members will co-organize the workshop on PETRA 2017 conference in the islands of Rhodes, Greece. This workshop aims to attract an interdisciplinary group of researchers who are involved in research related to smart cities and data science, focusing on novel methods and technologies for building environmentally sustainable ecosystems, providing seamless experience in smart mobility, enhancing citizen engagement, and influencing decision makers when launching smart city initiatives. See more at