Dr. Dirk Ahlers is a senior researcher and project manager of +CityxChange. He has a background in Computer Science and now works as a research manager with the Smart Sustainable Cities group of the Department of Architecture and Planning NTNU. His research interests are Urban Intelligence, Smart Cities, Climate Mitigation, Sustainability, Climate Neutral Cities, Open Innovation, Urban Systems Modeling, Geospatial Retrieval, Information Retrieval, Web Mining, Search Engines, Information Access, Mobile, and Everything Geo.