2022 | On the Spatial Analysis of Urban User-Generated Geodata Research Seminar Urban Big Data Centre, University of Glasgow, United Kingdom |
2022 | Geographische Räume, neu konstruiert Wissen ordnen und entgrenzen – vom analogen zum digitalen Europa? Leibniz Institute of European History, Mainz, Germany |
2022 | Spatial Amplifier Filtering for Analysing Geosocial Media Data Data Science Colloquium Dortmund Data Science Center, TU Dortmund University, Germany |
2021 | What is Special about Spatial? Data Competence Network Dortmund Data Science Center, TU Dortmund University, Germany |
2020 | Spatial Analysis in the Digital Revolution RIM Research Colloquium Department of Spatial Information Management and Modelling, TU Dortmund University, Germany |
2019 | Spatial Analysis of Geosocial Media Data–Methodological Remarks Geography Seminar Series School of Geographical Sciences, University of Bristol, UK |
2019 | Place in GIScience – A human geographic overview of the components to be formalised GIS Colloquium Institute of Geography, Heidelberg University, Germany |
2019 | Plac(e)ing Social Media DataBeers Warwick University of Warwick, Coventry, UK |
2018 | Places–Analysing Human Urban Experiences Mini Conference on VGI and Social Media for Urban Planning Z_GIS, University of Salzburg, Austria |
2018 | Urban Spatial Heterogeneity – Nuisance, or Source of Information? WISC Seminar, Warwick Institute for the Science of Cities University of Warwick, Coventry, UK |
2017 | Topological and scale-related issues in Twitter analyses through superimposed forms of spatial heterogeneity Annual Meeting of the American Association of Geographers Hynes Convention Center, Boston, MA, USA |
2017 | Methodological challenges in the spatial analysis of georeferenced social media data ABCD GIS Series Center for Geographic Analysis, Harvard University, Cambridge, MA, USA |
2016 | Mining the “big noise:“ Challenges and opportunities of social media analysis Mapping, Sensing, and Crowdsourcing Geographic Information Royal Geographical Society, London, UK |
2016 | Spatial Analysis of Twitter Data WISC Seminar, Warwick Institute for the Science of Cities University of Warwick, Coventry, UK |
2016 | The mapping portal of the GE_Sell project Coordination Meeting GE_Sell Federal Agency for Agriculture and Food, Bonn, Germany |
2015 | Mixed-Scale Spatial Autocorrelation Forum GI, Institute for Geoinformatics and Remote Sensing Osnabrück University, Germany |
2015 | Sampling and management of species in the national responsibility of Germany within the WIPs-De project Dialogforum Citizen Science German Federal Environmental Foundation, Osnabrück, Germany |
2014 | Peeling the onion – multiple geographic scale levels within tweets CrowdAnalyser Workshop 2014 Heidelberg Collaboratory for Image Processing, Heidelberg, Germany |
2013 | Multi-Scale Event Detection on Twitter Tweets Geography Colloquium, Center for Geographic Analysis Harvard University, Cambridge, MA, USA |
2012 | Using a geoportal in seed collection Joint Congress of the Consortia for Seeds and Plant Breeding Society for Plant Breeding, Osnabrück, Germany |