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A list of all the posts and pages found on the site. For you robots out there, there is an XML version available for digesting as well.
Pages
Posts
Future Blog Post
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Blog Post number 4
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 3
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 2
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 1
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
portfolio
flowmapper
Flowmapper is an R package that allows users to create beautiful, informative maps of geographic flows.
ImageFusion
This R package can run several widely used temporal fusion algorithms in C++, allowing users to benefit from both the performance of C++ and the analytical capabilities of R.
MigrationDetectR
MigrationDetectR implements a segment-based method for the detection of migration events in digital trace data.
rtsVis
A tool for the animation of raster time series, aimed at Remote Sensing time series. It provides several customizable animation and plot types to support customizable scientific visualisations.
publications
Mapping urban villages using fully convolutional neural networks
Published in Remote Sensing Letters, 2020
Recommended citation: J. Mast, C. Wei, M. Wurm, "Mapping urban villages using fully convolutional neural networks." Remote Sensing Letters, 2020.
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Space lidar for archaeology? Reanalyzing GEDI data for detection of ancient Maya buildings
Published in Journal of Archaeological Science: Reports, 2021
Recommended citation: Ziga Kokalj, Johannes Mast, "Space lidar for archaeology? Reanalyzing GEDI data for detection of ancient Maya buildings." Journal of Archaeological Science: Reports, 2021.
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Enhancing Earth Observation of Migration with Insights from Social Media
Published in ESA Living Planet Symposium 2022, 2022
ESA Living Planet Symposium 2022, Bonn, Germany.
Recommended citation: Mast, J., Sapena, M., Okhimamhe, L. A. A., Fürst, C., Biewer, C. & Taubenböck, H. (2022). "Enhancing Earth Observation of Migration with Insights from Social Media." ESA Living Planet Symposium 2022, Bonn, Germany.
Multilingual Topic Modeling of Geolocated Tweets for Assessing Interests of Migrants in West Africa
Published in WASCAL Symposium, 2022
WASCAL Symposium, Ouagadougou, Burkina Faso.
Recommended citation: Mast, J., Sapena, M., Thiel, M., Fürst, C., Biewer, C. & Taubenböck, H. (2022). "Multilingual Topic Modeling of Geolocated Tweets for Assessing Interests of Migrants in West Africa." WASCAL Symposium, Ouagadougou, Burkina Faso.
Are citizens’ perceptions on urban green spaces influenced by their immediate environment? The case of Grand Nokoue, Benin Republic
Published in 2023 Joint Urban Remote Sensing Event, 2023
2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
Recommended citation: Tohoun, B. A., Sapena Moll, M., Mast, J., Taubenböck, H., Haruna, I., Orekan, V., & Okhimamhe, A. A. (2023). "Are citizens' perceptions on urban green spaces influenced by their immediate environment? The case of Grand Nokoue, Benin Republic." 2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
Linking remote sensing data and online engagement in flood events in Nigeria
Published in 2023 Joint Urban Remote Sensing Event, 2023
2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
Recommended citation: Mast, J., Sapena, M., Geiß, C., & Taubenböck, H. (2023). "Linking remote sensing data and online engagement in flood events in Nigeria." 2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
Integrating multi-source remote sensing data for monitoring urban development in West Africa
Published in 2023 Joint Urban Remote Sensing Event, 2023
2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
Recommended citation: Sapena Moll, M., Inkoom, J. N., Umaru, E. T., Mast, J., Okhimamhe, A. A., & Taubenböck, H. (2023). "Integrating multi-source remote sensing data for monitoring urban development in West Africa." 2023 Joint Urban Remote Sensing Event. Heraklion, Greece.
The migrant perspective: Measuring migrants’ movements and interests using geolocated tweets
Published in Population, Space and Place, 2023
Recommended citation: Mast, J., Sapena, M., Mühlbauer, M., Biewer, C., & Taubenböck, H. (2024). "The migrant perspective: Measuring migrants' movements and interests using geolocated tweets." Population, Space and Place, 30(2), e2732.
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The Spatiality of Topics In Typical Sources of Text Data
Published in 16th ACM Web Science Conference 2024, 2024
16th ACM Web Science Conference 2024, Stuttgart, Germany.
Recommended citation: Mast, J. (2024). "The Spatiality of Topics In Typical Sources of Text Data." 16th ACM Web Science Conference 2024, Stuttgart, Germany.
Global differences in urbanization dynamics from 1985 to 2015 and outlook considering IPCC climate scenarios
Published in Cities, 2024
Recommended citation: Taubenböck, H., Mast, J., Geiß, C., Wurm, M., Esch, T., & Seto, K. C. (2024). "Global differences in urbanization dynamics from 1985 to 2015 and outlook considering IPCC climate scenarios." Cities, 151, 105117.
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Introduction to DIY-BU-Mapping Tool: Mapping Urban Expansion in Africa on the Cloud
Published in 43rd EARSeL Symposium, 2024
43rd EARSeL Symposium, Manchester, UK.
Recommended citation: Sapena Moll, M., Mast, J., Geiß, C., & Taubenböck, H. (2024). "Introduction to DIY-BU-Mapping Tool: Mapping Urban Expansion in Africa on the Cloud." 43rd EARSeL Symposium, Manchester, UK.
Geolingual Studies: Combining linguistics, remote sensing, and digital humanities to assess the interrelation of physical and social spaces
Published in Spatial Humanities Conference 2024, 2024
Spatial Humanities Conference 2024, Bamberg, Germany.
Recommended citation: Mast, J. & Lemoine-Rodriguez, R. (2024). "Geolingual Studies: Combining linguistics, remote sensing, and digital humanities to assess the interrelation of physical and social spaces." Spatial Humanities Conference 2024, Bamberg, Germany.
Mobility analysis using big data approaches
Published in Migraware validation workshop, 2024
Migraware validation workshop, Abuja, Nigeria.
Recommended citation: Sapena, M., Mast, J. & Taubenböck, H. (2024). "Mobility analysis using big data approaches." Migraware validation workshop, Abuja, Nigeria.
Dynamics of intra-urban employment geographies: A comparative study of U.S. and German metropolitan areas
Published in Journal of Urban Affairs, 2024
Recommended citation: Heider, B., Mast, J., Roth, D., Standfuß, I., Siedentop, S., & Taubenböck, H. (2024). "Dynamics of intra-urban employment geographies: A comparative study of U.S. and German metropolitan areas." Journal of Urban Affairs, 46(7), 1287–1307.
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Geospatiality: The effect of topics on the presence of geolocation in English text data
Published in International Journal of Geographical Information Science, 2025
Recommended citation: Mast, J., Lemoine-Rodriguez, R., Rittlinger, V., Geiß, C., Biewer, C., & Taubenböck, H. (2025). "Geospatiality: The effect of topics on the presence of geolocation in English text data." International Journal of Geographical Information Science.
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Comparing Geospatiality of Topics between Geotag- and Geoparsing-based Geolocations
Published in 3rd International Workshop on Geographic Information Extraction from Texts Workshop, GeoExT 2025, at the European Conference for Information Retrieval (ECIR) 2025, 2025
3rd International Workshop on Geographic Information Extraction from Texts Workshop, GeoExT 2025, at the European Conference for Information Retrieval (ECIR) 2025.
Recommended citation: Mast, J., Lemoine-Rodriguez, R., Rittlinger, V., Geiß, C., & Taubenböck, H. (2025). "Comparing Geospatiality of Topics between Geotag- and Geoparsing-based Geolocations." 3rd International Workshop on Geographic Information Extraction from Texts Workshop, GeoExT 2025, at the European Conference for Information Retrieval (ECIR) 2025.
Was Global Urbanization from 1985 to 2015 Efficient in Terms of Land Consumption?
Published in Habitat International, 2025
Recommended citation: Taubenböck, H., Mast, J., Lemoine Rodríguez, R., Debray, H., Wurm, M., & Geiß, C. (2025). "Was Global Urbanization from 1985 to 2015 Efficient in Terms of Land Consumption?" Habitat International, 160, 103397.
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Spatial delineations of cities based on web content and built-up age—A case study on North African growth poles from 2010 to 2020
Published in 17th International Conference on Joint Urban Remote Sensing (JURSE 2025), 2025
Recommended citation: Mast, J., Geiß, C., & Taubenböck, H. (2025). "Spatial delineations of cities based on web content and built-up age—A case study on North African growth poles from 2010 to 2020." 17th International Conference on Joint Urban Remote Sensing (JURSE 2025), Tunis, Tunisia.
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The digital urban frontier: Disparities in social media activity between consolidated and newly urbanized areas in Africa
Published in Applied Geography, 2025
Recommended citation: Mast, J., Sapena, M., Debray, H., Inkoom, J. N., Lemoine-Rodríguez, R., Geiß, C., & Taubenböck, H. (2025). "The digital urban frontier: Disparities in social media activity between consolidated and newly urbanized areas in Africa." Applied Geography, 181, 103687.
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Geospatiality of Topics in English Text Data
Published in International Conference for Computational Social Science (IC2S2), 2025
International Conference for Computational Social Science (IC2S2), Norrköping, Sweden.
Recommended citation: Mast, J., Geiß, C., & Taubenböck, H. (2025). "Geospatiality of Topics in English Text Data." International Conference for Computational Social Science (IC2S2), Norrköping, Sweden.
Using geolocated social media data for understanding the relationships between language, topic and mobility: A case study on a local use of English in Nigeria
Published in Geolingual Studies on Urban Space, 2026
Recommended citation: Mast, J., Heps, D., Sapena, M., & Taubenböck, H. (2025). "Using geolocated social media data for understanding the relationships between language, topic and mobility: A case study on a local use of English in Nigeria." Geolingual Studies on Urban Space.
Assessing the potential of social media data to support remote sensing data in migration analysis – An explorative modelling approach for Ghana, 2015-2020
Published in ESA Living Planet Symposium 2025, 2026
ESA Living Planet Symposium 2025, Vienna, Austria.
Recommended citation: Mast, J., Sapena Moll, M., Geiß, C., & Taubenböck, H. (2025). "Assessing the potential of social media data to support remote sensing data in migration analysis – An explorative modelling approach for Ghana, 2015-2020." ESA Living Planet Symposium 2025, Vienna, Austria.
talks
Geodaten, Mobilität, und soziale Medien – Big Data und die Perspektive der Stadtbevölkerung
Published:
A. Droin and I had the special privilege of being invited by the student’s board of the Geographic Institute to hold a talk at the lecture series of the Geografische Gesellschaft Würzburg. In our talk and the following discussion, we tackled the question of how the perspectives and needs of individuals can be accounted for in urban analysis. We discussed aspects of accessibility, spatial cognition, urban functions and the use of social media, among others. You can read more on the EORC Blog post.
Use of geolocated Web Text Data in the Context of Geo-Risks and Disaster Management Support
Published:
Together with V. Rittlinger, I held a talk at the DLR Open Search Colloquium for the OpenWebSearch initiative. We demonstrated how we use geolocated web text data in our work on Geo-Risks, Human Migration, and Urbanisation.
The joint use of remote sensing data and text data for migration research – Exploring potentials and limitations for the case of West Africa
Published:
In April, I had the opportunity to present in the Seminar of the Max Planck Institute for Demographic Research, a leading demographic research center in Rostock. I am very grateful to the MPIDR for inviting and hosting me at their institute and the many inspiring discussions regarding synergies between Earth Observation and Demographic research. For more information, see the post on the MPIDR website.
Joining Remote Sensing and Social Media Data for Migration Research – Perspectives on Cities and Mobilities
Published:
Together with R. Rodriguez from the Geolingual Studies team, I had the opportunity to present our research at the Max Planck Institute for Security and Privacy in Bochum, Germany. We presented research on combining remote sensing and social media data to study migration. My talk specifically highlighted our approach of combining remote sensing and social media data in research of human mobility and urban discourse across different urban environments in Africa. I am grateful to the MPISP for giving us the opportunity to visit their lab and discuss challenges and potentials for future research in this field.
teaching
Science from Wall to Wall
Guest Lecturer, University of Würzburg, 2022
Guest Lecturer in the course “Science from Wall to Wall”, part of the M.Sc. programme “applied Earth Observation and Geoanalysis of the Living Environment” at the University of Würzburg (2022 & 2023).
Migration: Remote Sensing and Other Data Sources for Analysis
Guest Lectures, Federal University of Technology (FUT) Minna, 2022
As part of our collaboration with the Federal University of Technology (FUT) Minna in the context of the WASCAL and MIGRAWARE projects, we had the privilege of conducting a series of online lectures, together with M. Weigand, M. Sapena, and H. Taubenböck. We demonstrated and discussed applications of remote sensing in the context of urbanisation, georisks, and human migration.
Mobility analysis using big data approaches
Guest Lectures, University of Cape Coast, 2023
M. Sapena, E. Schoepfer, H. Taubenböck and I held a series of online guest lectures in the seminar of the University of Cape Coast (UCC), Ghana, our partner organisation in the MIGRAWARE project who I had the privilege of visiting in 2023. After our talks, we had engaging discussions with the students from UCC about the capabilities of earth observation data and the potentials and challenges of social media analysis.
Analysing big open human mobility data and contrasting it with access to opportunities using R
Tutorial, International Conference for Computational Social Science (IC2S2), 2025
Together with E. Kotov, I held a workshop at the International Conference for Computational Social Science (IC2S2). We introduced data sources and tools for the acquisition, analysis and visualisation of big open mobility data. As a case study, we presented accesssibility analysis using open mobility data from Spain, acquired with spanishoddata and visualised with flowmapper.