Alessandro Sarretta is a researcher at the Italian National Research Council (CNR), since 2019 in the Research Institute for Geo-hydrological Protection, in Padua, previously at the Institute of Marine Sciences, in Venice. He deals, in marine/coastal and now geomorphological fields, with environmental data management and processing, Spatial Data Infrastructures, implementation of Decision Support Systems, standards and interoperability of research data. He is interested and involved in various fields of "openness", from open source software to open science, open knowledge and participatory mapping.

Amine Chebil; Master 1 Géomatique, Géodata Paris, Université Gustave Eiffel;

Andres Garchitorena is a researcher in global health and spatial epidemiology at the French National Research Institute for Sustainable Development (IRD). His work focuses on understanding and reducing inequalities in access to healthcare in low-resource settings, with a particular emphasis on Madagascar, where he has worked for nearly a decade in collaboration with the Ministry of Health and local partners.

He combines OpenStreetMap, geospatial analysis, and health system data to develop decision-support tools that inform community health programs and national health policies. His recent work explores how large-scale, high-resolution mapping can be used to quantify geographic barriers to care and optimize last-mile service delivery, bridging the gap between open mapping communities and operational public health systems.

Associate Professor in Computer science at Grenoble INP, Univ. Grenoble Alpes, France.
My research focuses on representing the evolution of data over time within the Web of distributed data, also known as the Linked Open Data (LOD) Cloud or Semantic Web.

I am a researcher at the Technical University of Munich at the Professorship for Big Geospatial Data Management.

Carlos Cámara is a Senior Research Software Engineer at the Centre for Interdisciplinary Methodologies at the University of Warwick (UK). He is an interdisciplinary researcher, with a background in architecture and urban sociology, whose research articulates around how physical and digital infrastructures, especially those that are commonly produced, respond to and are shaped by societal challenges. Currently, he is researching, inquiring and surfacing the world-views that are invariably embedded in technical artefacts such as platforms and maps, and how this affects under-represented communities. To do, he uses mixed-methods, with a preference for participatory approaches, digital methods and data visualisation. In his free time, he loves contributing to OpenStreetMap, and he has co-organised several humanitarian mapathons and accessibility mapping parties.

I am a cultural geographer with an enthusiasm for OpenStreetMap and the broader possibilities of open mapping. My work is driven by a deep curiosity about how technology and society co-evolve and shape one another over time. As a researcher, I focus particularly on the convergence of geospatial data, digital technologies, and social processes. I am especially interested in how these developments influence and transform societal structures, practices, and the ways in which we know the world.

• Current role:
  Geospatial Data Analyst at the "Global Dynamic Exposure Model" Group, Section 2.6 Seismic Hazard and Risk Dynamics, GFZ Helmholtz Centre for Geosciences, Germany

• Research Interests:
  1. Geospatial data processing (Global building data, 3D model, 3D point clouds, Digital terrain model, Remote sensing, Transportation, Geospatial open data, etc)
  2. 3D Modelling for the built environment by using geospatial data: 3D building modelling, 2D and 3D road network modelling, etc
  3. Urban analytic

• Education:
  1. Master of Geomatics, Delft University of Technology, the Netherlands (2022-2024)
  2. Master of Landscape Architecture and Urban Planning, Beijing Forestry University, China (2015-2018)
  3. Bachelor of Landscape Architecture, Beijing Forestry University, China (2011-2015)

Christian Klinkhardt is an academic researcher at the Institute for Transport Studies at KIT and a city councillor on the Municipal Council of the City of Karlsruhe. He studied civil engineering at KIT, completing his master’s degree in 2020. His research focuses on travel demand modelling, the integration of open data into transport models, and the deployment of autonomous driving in our transport system.

Graduate student in Geoinformatics at the Hebrew University of Jerusalem, interested in Spatial Data Science and the applications of Volunteered Geographic Information (VGI) and GeoAI for urban planning and spatial modeling. Member of the Geo-Cultural Information Lab, researching quality measures and the effect of corporate contributions to OSM.

PhD student in Geomatics and Geoinformatica at Politecnico di Milano (Italy). Co-founder of PoliMappers and active mapper member of the OSM community since 2016.

Guillaume Touya is a senior researcher, at Géodata Paris, IGN France (the French mapping agency) and Univ Gustave Eiffel. He holds a PhD and habilitation in GI science from Paris-Est University. His research interests focus on automated cartography, map generalization and volunteered geographic information. He is particularly interested in research approaches to multi-scale cartography that mix automated cartography, spatial cognition and human-computer interaction issues. He is the principal investigator of the recent LostInZoom project, funded by the Europe Research Council (ERC) (2021-2026). He is the chair of the ICA (International Cartographic Association) commission on multi-scale cartography.

Hannah Boettcher is a doctoral researcher and research associate at the Institute of Geography at Friedrich-Alexander-University Erlangen-Nürnberg. Their research is situated in the field of digital geography, combining political- and social-geographical perspectives on digital spatial data with computational and qualitative methods. Hannah Boettcher is a founding and editorial member of the journal GRID (https://gridisnotajournal.de/), and their work includes social- and political-geographical research on OpenStreetMap as well as the social-scientific and discourse-analytical use of GIS-based methods. Methodologically, they combine qualitative approaches with computational text and data analysis, including natural language processing (NLP) and topic modelling, in order to investigate how digital spatial data and technologies reshape knowledge production and spatial governance.

Helga Tauscher holds a professorship for computing in engineering at HTW Berlin. Her research interests revolve around graph-based model integration for data in the AEC (architecture, engineering and construction) industry, domain-specific languages and opensource software development. Previously, she has studied architecture at Dresden University of Applied Science, as well as at weißensee academy of art Berlin and received her PhD in construction informatics from TU Dresden. She worked as a CAD/CAFM-expert in the elevator industry, as software developer for internet-based construction project management, as a researcher, lecturer and substitute professor in Kaiserslautern, Singapore and Weimar.

Teaching and research in math, computer science, data analysis

A cartographer with roots in Paraguay and academic experience across Europe through the Erasmus Mundus Cartography MSc. Currently starting her professional journey as a cartographer in Germany, with a strong interest in open data and social and urban research. Passionate about maps, infographics, cities, and the stories they tell.

Geomatics student at GeoData Paris (ENSG) with a background in data science and GIS development

Marion Porcherie holds a PhD in Political Science and is an assistant professor at the French School of Public Health (EHESP) in Rennes, affiliated with the Arènes research unit (CNRS UMR 6051). Her research focuses on health promotion, the social and territorial determinants of health, and the integration of health into public policies, particularly in urban contexts.

Nomin Enkhtamir is a PhD candidate in urban geography at the University of Pécs, holding a BSc in civil and structural engineering and an MA in landscape architecture from MATE Budapest. Nomin spent around four years working in reinforced concrete structural engineering, alongside landscape and public space projects such as a participatory playground design and a thesis on public park design in Ulaanbaatar. This mix of engineering, landscape design, and mapping shapes Nomin’s interest in how cities and their indoor spaces can be represented in spatial data.

I am a research engineer on the LostInZoom project since 2025, and my current work focuses on the role of multi-scale thematic maps in crisis management.
I also contribute regularly to the CartAGen tool.

Paweł Struś is a geographer based in Kraków, Poland, affiliated with the University of the National Education Commission in Kraków. His academic interests focus on urban geography, geoinformation, cartography, OpenStreetMap, social mapping and the use of spatial data in the analysis of everyday urban environments. He is particularly interested in participatory and educational applications of GIS and open geodata.

MSc 2nd year Intern at LIG

Philippe Gambette is a professor of Computer Science at Université Gustave Eiffel, in the Gaspard-Monge Computer Science Laboratory (LIGM). His research in digital humanities focuses on developing methods and tools —sometimes inspired by bioinformatics— for computer-assisted text analysis. In particular, he has worked on tools for visualization and digital mapping of texts, as well as automatic modernization of 17th-century texts in French.

Pierre-Léo Bourbonnais is a Research Professional at Chaire Mobilité, Polytechnique Montreal. He holds a Ph.D. in Civil Engineering and specializes in travel survey methodology, public transit network design and optimization, and geospatial data management. He is one of the lead developers of Transition, an open-source transit planning platform, and Evolution, a travel survey interview platform. As a member of the OpenStreetMap Foundation, he actively contributes to mapping and validating geospatial data across Quebec and Canada. His work bridges academic research with practical applications, with publications in leading transportation journals.

Pierre-Olivier Mazagol holds a PhD in Geography and is a research engineer at the "Environnement, Ville, Société" laboratory (EVS, UMR 5600 CNRS) at Jean Monnet University, Saint-Étienne. His work focuses on geomatics techniques, the environment, and cultural heritage through an interdisciplinary approach.

Quang Huy was born in Hanoi, Vietnam, in 1996. He obtained B.Sc. in Urban and Regional Planning (Hanoi Architectural University, 2019), MSc in Urban project, Heritage and Sustainable Development (ENSA Toulouse and Hanoi Architectural University, 2022) and MSc in Landscape Architecture, Land Landscape Heritage in (Politecnico di Milano, 2024). Currently, he is currently a PhD student at the GEOlab of Politecnico di Milano. He is interested in data analyst and visualization, open-source technology, cultural heritage interpretation, museum technology and scenography, GIS and geographic information technology.

As a civil engineer with over 15 years of experience, I focus on transportation engineering and infrastructure development. I contribute to diverse projects in transport engineering, including geometry design, drainage, pavement, and earthworks. My expertise also extends to urban mobility consulting and traffic engineering, utilizing advanced traffic microsimulation tools for impact studies on traffic-generating hubs.

My technical proficiency includes geoprocessing using QGIS, statistical analyses with R programming, and foundational knowledge in Python and machine learning. Currently pursuing a doctorate in Geodetic Sciences (cartography field) at Universidade Federal do Paraná, I am committed to exploring innovative solutions for urban planning and mobility and road safety challenges.

Raphael Volz (born 1976) is a German computer scientist, full professor of Applied Informatics at Hochschule Pforzheim (Pforzheim University of Applied Sciences) since 2012, and a notable contributor to early Semantic Web research, ontologies, and knowledge engineering. With an h-index of 40 and over 8,000 citations, his work includes highly cited publications on ontology mapping, description logics, and Semantic Web technologies. He is also an entrepreneur who founded multiple technology companies and an inventor holding patents in areas such as location-based profiles and traffic sign recognition.

Postdoc researcher at PACTE lab at Université Grenoble Alpes, I am currently working on human migrations data modeling.
I also keep some activity around my PhD subject which was around cycling mobility with VGI and authoritative data.

PhD computer science (Univ Toulouse), Doctor Ingeneer (ENSEEIHT INP-Toulouse), Professor (Univ. Orsay, Paris Saclay, Univ. Laval Quebec), Directeur de Recherche CNRS, Emeritus.

MSc Student in Geographical Information Sciences

Dr. Yair Grinberger is a senior lecturer of geoinformatics at the Department of Spatial Science at the Hebrew University of Jerusalem. His main interests are Geographical Information Science, OpenStreetMap Science, geo-cultural analysis, urban agent-based modeling, and mobility analysis.

Yannick is a versatile computer engineer working mostly on open source projects. He did is first contribution to OpenStreetMap in 2010 and is an active member of the Montréal community. He is a research professional at the Chaire Mobilite lab at Polytechnique Montreal writing for their open source transit planning platform Transition platform and working on their backend infrastructure. He has teached several course, including parallel programming and embedded software development using OSS tools. And in his spare time, he's helping startups figure out their software development and infrastructure needs. Previously, he did various work around the Linux Kernel.

Yousif Amanuel is a PhD researcher, engineer, and maker whose work circles a single instinct: making powerful tools accessible to people who shouldn’t need a command line to use them. At Leibniz University Hannover, his doctoral research focuses on computer science, AI, and machine learning education, using block-based programming to make these subjects approachable for learners. Outside academia, he is the creator of Terraink, an open source web app that turns OpenStreetMap data into printable city map posters and reached 1 million users in two months with zero marketing. He recently shipped Clawd Mochi, an open source ESP32 desk companion inspired by the Claude mascot, which picked up 200+ GitHub stars in two weeks. He served two years as president of the Erasmus Student Network at his university and shares his projects with around 27,000 followers across Instagram and TikTok. Outside of code, Yousif procrastinates productively: he started Terraink to procrastinate his PhD, then started Clawd Mochi to procrastinate Terraink. He is a relentless DIY learner who cuts his own hair, prints his own T-shirts, and rarely meets a new skill he doesn’t want to try for himself. He also speaks four languages fluently.