Alexander Zipf

ORCID

Publication Activity (10 Years)

Years Active: 2001-2024
Publications (10 Years): 78

Top Venues

ISPRS Int. J. Geo Inf.

Trans. GIS

Int. J. Geogr. Inf. Sci.

ISCRAM

Publications

Tessio Novack, Leonard Vorbeck, Alexander Zipf
An investigation of the temporality of OpenStreetMap data contribution activities. Geo spatial Inf. Sci. 27 (2) (2024)
Nir Fulman, Abdulkadir Memduhoglu, Alexander Zipf
Evidence for Systematic Bias in the Spatial Memory of Large Language Models. GeoExT@ECIR (2024)
Nir Fulman, Abdulkadir Memduhoglu, Alexander Zipf
Distortions in Judged Spatial Relations in Large Language Models: The Dawn of Natural Language Geographic Data? CoRR (2024)
Steffen Knoblauch, Levi Szamek, Jonas Wenk, Iddy Chazua, Innocent Maholi, Maciej Adamiak, Sven Lautenbach, Alexander Zipf
UAV-Assisted Municipal Solid Waste Monitoring for Informed Disposal Decisions. GoodIT (2024)
Hao Li, Zhendong Yuan, Gabriel Dax, Gefei Kong, Hongchao Fan, Alexander Zipf, Martin Werner
Semi-Supervised Learning from Street-View Images and OpenStreetMap for Automatic Building Height Estimation. GIScience (2023)
Veit Ulrich, Josephine Brückner, Michael Schultz, Sanam Noreen Vardag, Christina Ludwig, Johannes Fürle, Mohammed Zia, Sven Lautenbach, Alexander Zipf
Private Vehicles Greenhouse Gas Emission Estimation at Street Level for Berlin Based on Open Data. ISPRS Int. J. Geo Inf. 12 (4) (2023)
Steffen Knoblauch, Hao Li, Sven Lautenbach, Yara Elshiaty, Antônio A. de A. Rocha, Bernd Resch, Dorian Arifi, Thomas Jaenisch, Ivonne Morales, Alexander Zipf
. Int. J. Appl. Earth Obs. Geoinformation 119 (2023)
Sukanya Randhawa, Guntaj Randhawa, Olena Sivak, Johannes Zech, Maria Martin, Alexander Zipf, Yuze Li
Multiscale Multifeature Vision Learning for Scalable and Efficient Wastewater Treatment Plant Detection using Hi-Res Satellite Imagery and OSM. UrbanAI@SIGSPATIAL (2023)
Hao Li, Zhendong Yuan, Gabriel Dax, Gefei Kong, Hongchao Fan, Alexander Zipf, Martin Werner
Semi-supervised Learning from Street-View Images and OpenStreetMap for Automatic Building Height Estimation. CoRR (2023)
Alexander Zipf
Using VGI for Social Good: Potentials and Pitfalls for Using OSM for Humanitarian Aid and Climate Mitigation. GISTAM (2023)
Danfeng Hong, Bing Zhang, Hao Li, Yuxuan Li, Jing Yao, Chenyu Li, Martin Werner, Jocelyn Chanussot, Alexander Zipf, Xiao Xiang Zhu
Cross-City Matters: A Multimodal Remote Sensing Benchmark Dataset for Cross-City Semantic Segmentation using High-Resolution Domain Adaptation Networks. CoRR (2023)
Alexander Zipf, Amandaus Butzer, Marcel Reinmuth, Michael Auer, Benjamin Herfort, Adam Rousell, Sven Lautenbach, Stefan Gumbrich
OpenStreetMap Tools for Humanitarian Aid. GEOINFO (2022)
Oliver Fritz, Sabrina Marx, Benjamin Herfort, Soraya Kaiser, Moritz Langer, Josefine Lenz, Christian Thiel, Alexander Zipf
Das Potenzial von Citizen Science für die Kartierung von Landschaftsveränderungen in arktischen Permafrostregionen / The Potential of Citizen Science for Mapping Landscape Change in Arctic Permafrost Regions. AGIT Journal 8 (2022)
Mohammed Zia, Johannes Fürle, Christina Ludwig, Sven Lautenbach, Stefan Gumbrich, Alexander Zipf
SocialMedia2Traffic: Derivation of Traffic Information from Social Media Data. ISPRS Int. J. Geo Inf. 11 (9) (2022)
Hao Li, Johannes Zech, Danfeng Hong, Pedram Ghamisi, Michael Schultz, Alexander Zipf
Leveraging OpenStreetMap and Multimodal Remote Sensing Data with Joint Deep Learning for Wastewater Treatment Plants Detection. Int. J. Appl. Earth Obs. Geoinformation 110 (2022)
Hao Li, Zhendong Yuan, Tessio Novack, Wei Huang, Alexander Zipf
Understanding spatiotemporal trip purposes of urban micro-mobility from the lens of dockless e-scooter sharing. Comput. Environ. Urban Syst. 96 (2022)
Hao Li, Benjamin Herfort, Sven Lautenbach, Jiaoyan Chen, Alexander Zipf
Improving OpenStreetMap missing building detection using few-shot transfer learning in sub-Saharan Africa. Trans. GIS 26 (8) (2022)
Christina Ludwig, Robert Hecht, Sven Lautenbach, Martin Schorcht, Alexander Zipf
Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions. ISPRS Int. J. Geo Inf. 10 (4) (2021)
Christina Ludwig, Sven Lautenbach, Eva-Marie Schömann, Alexander Zipf
Comparison of Simulated Fast and Green Routes for Cyclists and Pedestrians. GIScience (II) (2021)
Zhiyong Wang, Tessio Novack, Yingwei Yan, Alexander Zipf
Quiet Route Planning for Pedestrians in Traffic Noise Polluted Environments. IEEE Trans. Intell. Transp. Syst. 22 (12) (2021)
Carolin Klonner, Maximilian Hartmann, Rebecca Dischl, Lily Djami, Liana Anderson, Martin Raifer, Fernanda Lima-Silva, Lívia Castro Degrossi, Alexander Zipf, João Porto de Albuquerque
The Sketch Map Tool Facilitates the Assessment of OpenStreetMap Data for Participatory Mapping. ISPRS Int. J. Geo Inf. 10 (3) (2021)
Oliver Fritz, Michael Auer, Alexander Zipf
Entwicklung eines Regressionsmodells für die Vollständigkeitsanalyse des globalen OpenStreetMap- Datenbestands an Nahverkehrs-Busstrecken / Development of a Regression Model for the Analysis of Local Bus Route Data Completeness on OpenStreetMap. AGIT Journal 7 (2021)
Xuke Hu, Hongchao Fan, Alexey Noskov, Zhiyong Wang, Alexander Zipf, Fuqiang Gu, Jianga Shang
Room semantics inference using random forest and relational graph convolutional networks: A case study of research building. Trans. GIS 25 (1) (2021)
Christina Ludwig, Sascha Fendrich, Alexander Zipf
Regional variations of context-based association rules in OpenStreetMap. Trans. GIS 25 (2) (2021)
Hao Li, Johannes Zech, Christina Ludwig, Sascha Fendrich, Aurélie Shapiro, Michael Schultz, Alexander Zipf
Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning. Int. J. Appl. Earth Obs. Geoinformation 104 (2021)
Moritz Schott, Asher Yair Grinberger, Sven Lautenbach, Alexander Zipf
The Impact of Community Happenings in OpenStreetMap - Establishing a Framework for Online Community Member Activity Analyses. ISPRS Int. J. Geo Inf. 10 (3) (2021)
Xuke Hu, Alexey Noskov, Hongchao Fan, Tessio Novack, Hao Li, Fuqiang Gu, Jianga Shang, Alexander Zipf
Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning. Int. J. Geogr. Inf. Sci. 35 (9) (2021)
Asher Yair Grinberger, Moritz Schott, Martin Raifer, Alexander Zipf
An analysis of the spatial and temporal distribution of large-scale data production events in OpenStreetMap. Trans. GIS 25 (2) (2021)
Raphael Witt, Lukas Loos, Alexander Zipf
Analysing the Impact of Large Data Imports in OpenStreetMap. ISPRS Int. J. Geo Inf. 10 (8) (2021)
Hao Li, Pedram Ghamisi, Behnood Rasti, Zhaoyan Wu, Aurélie Shapiro, Michael Schultz, Alexander Zipf
A Multi-Sensor Fusion Framework Based on Coupled Residual Convolutional Neural Networks. Remote. Sens. 12 (12) (2020)
Alexander Zipf
Leveraging User Generated Geoinformation for Humanitarian Aid: Potentials and Challenges. GISTAM (2020)
Yingwei Yan, Chen-Chieh Feng, Wei Huang, Hongchao Fan, Yi-Chen Wang, Alexander Zipf
Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience. Int. J. Geogr. Inf. Sci. 34 (9) (2020)
Tessio Novack, Leonard Vorbeck, Heinrich Lorei, Alexander Zipf
Towards Detecting Building Facades with Graffiti Artwork Based on Street View Images. ISPRS Int. J. Geo Inf. 9 (2) (2020)
Xuke Hu, Lei Ding, Jianga Shang, Hongchao Fan, Tessio Novack, Alexey Noskov, Alexander Zipf
Data-driven approach to learning salience models of indoor landmarks by using genetic programming. Int. J. Digit. Earth 13 (11) (2020)
Yingwei Yan, Michael Schultz, Alexander Zipf
An exploratory analysis of usability of Flickr tags for land use/land cover attribution. Geo spatial Inf. Sci. 22 (1) (2019)
Benjamin Herfort, Hao Li, Sascha Fendrich, Sven Lautenbach, Alexander Zipf
Mapping Human Settlements with Higher Accuracy and Less Volunteer Efforts by Combining Crowdsourcing and Deep Learning. Remote. Sens. 11 (15) (2019)
Xuke Hu, Hongchao Fan, Alexey Noskov, Alexander Zipf, Zhiyong Wang, Jianga Shang
Feasibility of Using Grammars to Infer Room Semantics. Remote. Sens. 11 (13) (2019)
Jiaoyan Chen, Yan Zhou, Alexander Zipf, Hongchao Fan
Deep Learning From Multiple Crowds: A Case Study of Humanitarian Mapping. IEEE Trans. Geosci. Remote. Sens. 57 (3) (2019)
Michael Auer, Melanie Eckle, Sascha Fendrich, Luisa Griesbaum, Fabian Kowatsch, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf
Towards Using the Potential of OpenStreetMap History for Disaster Activation Monitoring. ISCRAM (2018)
Michael Auer, Melanie Eckle, Sascha Fendrich, Fabian Kowatsch, Lukas Loos, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf
Ohsome - eine Plattform zur Analyse raumzeitlicher Entwicklungen von OpenStreetMap-Daten für intrinsische QualitätsbewertungenOhsome - An OpenStreetMap History Analytics Platform for Intrinsic Quality Assessments. AGIT Journal Angew. Geoinformatik 4 (2018)
Amin Mobasheri, Alexander Zipf, Louise Francis
OpenStreetMap data quality enrichment through awareness raising and collective action tools - experiences from a European project. Geo spatial Inf. Sci. 21 (3) (2018)
Ming Li, René Westerholt, Alexander Zipf
Do people communicate about their whereabouts? Investigating the relation between user-generated text messages and Foursquare check-in places. Geo spatial Inf. Sci. 21 (3) (2018)
Stefan Hahmann, Jakob Miksch, Bernd Resch, Johannes Lauer, Alexander Zipf
Routing through open spaces - A performance comparison of algorithms. Geo spatial Inf. Sci. 21 (3) (2018)
Tessio Novack, Zhiyong Wang, Alexander Zipf
A System for Generating Customized Pleasant Pedestrian Routes Based on OpenStreetMap Data. Sensors 18 (11) (2018)
Chiao-Ling Kuo, Ta-Chien Chan, I-Chun Fan, Alexander Zipf
Efficient Method for POI/ROI Discovery Using Flickr Geotagged Photos. ISPRS Int. J. Geo Inf. 7 (3) (2018)
Tessio Novack, Robin Peters, Alexander Zipf
Graph-Based Matching of Points-of-Interest from Collaborative Geo-Datasets. ISPRS Int. J. Geo Inf. 7 (3) (2018)
Lívia Castro Degrossi, João Porto de Albuquerque, Roberto dos Santos Rocha, Alexander Zipf
A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information. Trans. GIS 22 (2) (2018)
Michael Auer, Alexander Zipf
3D WebGIS: From Visualization to Analysis. An Efficient Browser-Based 3D Line-of-Sight Analysis. ISPRS Int. J. Geo Inf. 7 (7) (2018)
René Westerholt, Mathias Gröbe, Alexander Zipf, Dirk Burghardt
Towards the Statistical Analysis and Visualization of Places (Short Paper). GIScience (2018)
Yingwei Yan, Chiao-Ling Kuo, Chen-Chieh Feng, Wei Huang, Hongchao Fan, Alexander Zipf
Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists. Int. J. Geogr. Inf. Sci. 32 (9) (2018)
Amin Mobasheri, Haosheng Huang, Lívia Castro Degrossi, Alexander Zipf
Enrichment of OpenStreetMap Data Completeness with Sidewalk Geometries Using Data Mining Techniques. Sensors 18 (2) (2018)
Stefan Scholz, Paul Knight, Melanie Eckle, Sabrina Marx, Alexander Zipf
Volunteered Geographic Information for Disaster Risk Reduction - The Missing Maps Approach and Its Potential within the Red Cross and Red Crescent Movement. Remote. Sens. 10 (8) (2018)
Ming Li, René Westerholt, Hongchao Fan, Alexander Zipf
Assessing spatiotemporal predictability of LBSN: a case study of three Foursquare datasets. GeoInformatica 22 (3) (2018)
Yingwei Yan, Melanie Eckle, Chiao-Ling Kuo, Benjamin Herfort, Hongchao Fan, Alexander Zipf
Monitoring and Assessing Post-Disaster Tourism Recovery Using Geotagged Social Media Data. ISPRS Int. J. Geo Inf. 6 (5) (2017)
Hongchao Fan, Alexander Zipf, Hangbin Wu
Detecting repetitive structures on building footprints for the purposes of 3D modeling and reconstruction. Int. J. Digit. Earth 10 (8) (2017)
Franz-Benjamin Mocnik, Alexander Zipf, Martin Raifer
The OpenStreetMap folksonomy and its evolution. Geo spatial Inf. Sci. 20 (3) (2017)
David Jonietz, Vyron Antoniou, Linda See, Alexander Zipf
Highlighting Current Trends in Volunteered Geographic Information. ISPRS Int. J. Geo Inf. 6 (7) (2017)
Jiaoyan Chen, Alexander Zipf
DeepVGI: Deep Learning with Volunteered Geographic Information. WWW (Companion Volume) (2017)
Clemens Jacobs, Alexander Zipf
Completeness of citizen science biodiversity data from a volunteered geographic information perspective. Geo spatial Inf. Sci. 20 (1) (2017)
Lívia Castro Degrossi, João Porto de Albuquerque, Roberto dos Santos Rocha, Alexander Zipf
A Framework of Quality Assessment Methods for Crowdsourced Geographic Information: a Systematic Literature Review. ISCRAM (2017)
Lívia Castro Degrossi, João Porto de Albuquerque, Camilo Ernesto Restrepo-Estrada, Amin Mobasheri, Alexander Zipf
Exploring the geographical context for quality assessment of VGI in flood management domain. AMCIS (2017)
Melanie Eckle, Benjamin Herfort, Yingwei Yan, Chiao-Ling Kuo, Alexander Zipf
Towards using Volunteered Geographic Information to monitor post-disaster recovery in tourist destinations. ISCRAM (2017)
Janek Voss, Michael Auer, Michael Schultz, Alexander Zipf
Einsatz von OpenStreetMap-Daten zur Erstellung von Landnutzungsprodukten am Beispiel von OSM Landuse Landcover. AGIT Journal Angew. Geoinformatik 3 (2017)
Wei Huang, Hongchao Fan, Alexander Zipf
Towards Detecting the Crowd Involved in Social Events. ISPRS Int. J. Geo Inf. 6 (10) (2017)
Luisa Griesbaum, Melanie Eckle, Benjamin Herfort, Martin Raifer, Alexander Zipf
Partizipative Methoden zur Erfassung und Verarbeitung von Geoinformationen. HMD Prax. Wirtsch. 54 (4) (2017)
Michael Schultz, Janek Voss, Michael Auer, Sarah Carter, Alexander Zipf
Open land cover from OpenStreetMap and remote sensing. Int. J. Appl. Earth Obs. Geoinformation 63 (2017)
Adam Rousell, Alexander Zipf
Towards a Landmark-Based Pedestrian Navigation Service Using OSM Data. ISPRS Int. J. Geo Inf. 6 (3) (2017)
Stefan Hahmann, Alexander Zipf, Adam Rousell, Amin Mobasheri, Lukas Loos, Maxim A. Rylov, Enrico Steiger, Johannes Lauer
GIS-Werkzeuge zur Verbesserung der barrierefreien Routenplanung aus dem Projekt CAP4Access. AGIT Journal Angew. Geoinformatik 2 (2016)
Melanie Eckle, João Porto de Albuquerque, Benjamin Herfort, Alexander Zipf
Entscheidungsunterstützung im Hochwassermanagement - Integration von Kritischer Infrastruktur und Notfallrouting auf der Basis freier Geodaten. AGIT Journal Angew. Geoinformatik 2 (2016)
David Jonietz, Alexander Zipf
Defining Fitness-for-Use for Crowdsourced Points of Interest (POI). ISPRS Int. J. Geo Inf. 5 (9) (2016)
Melanie Eckle, João Porto de Albuquerque, Benjamin Herfort, Alexander Zipf, Richard Leiner, Rüdiger Wolff, Clemens Jacobs
Leveraging OpenStreetMap to Support Flood Risk Management in Municipalities: A Prototype Decision Support System. ISCRAM (2016)
Paulo Dias Almeida, Jorge Gustavo Rocha, Andrea Ballatore, Alexander Zipf
Where the Streets Have Known Names. ICCSA (4) (2016)
Anran Yang, Hongchao Fan, Ning Jing, Yeran Sun, Alexander Zipf
Temporal Analysis on Contribution Inequality in OpenStreetMap: A Comparative Study for Four Countries. ISPRS Int. J. Geo Inf. 5 (1) (2016)
Enrico Steiger, Bernd Resch, Alexander Zipf
Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks. Int. J. Geogr. Inf. Sci. 30 (9) (2016)
Enrico Steiger, Maksim Rylov, Alexander Zipf
Echtzeitverkehrslage basierend auf OSM-Daten im OpenRouteService. AGIT Journal Angew. Geoinformatik 2 (2016)
Michael Auer, Lukas Loos, Alexander Zipf
MayaArch3D - webbasierte archäologische 3D-Visualisierung und Analyse. AGIT Journal Angew. Geoinformatik 2 (2016)
Hongchao Fan, Bisheng Yang, Alexander Zipf, Adam Rousell
A polygon-based approach for matching OpenStreetMap road networks with regional transit authority data. Int. J. Geogr. Inf. Sci. 30 (4) (2016)
Ahmed Loai Ali, Nuttha Sirilertworakul, Alexander Zipf, Amin Mobasheri
Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap. ISPRS Int. J. Geo Inf. 5 (6) (2016)
Benjamin Herfort, Melanie Eckle, João Porto de Albuquerque, Alexander Zipf
Towards assessing the quality of volunteered geographic information from OpenStreetMap for identifying critical infrastructures. ISCRAM (2015)
Yeran Sun, Hongchao Fan, Mohamed Bakillah, Alexander Zipf
Road-based travel recommendation using geo-tagged images. Comput. Environ. Urban Syst. 53 (2015)
Helen Dorn, Tobias Törnros, Alexander Zipf
Quality Evaluation of VGI Using Authoritative Data - A Comparison with Land Use Data in Southern Germany. ISPRS Int. J. Geo Inf. 4 (3) (2015)
Andrea Ballatore, Alexander Zipf
A Conceptual Quality Framework for Volunteered Geographic Information. COSIT (2015)
João Porto de Albuquerque, Benjamin Herfort, Alexander Brenning, Alexander Zipf
A geographic approach for combining social media and authoritative data towards identifying useful information for disaster management. Int. J. Geogr. Inf. Sci. 29 (4) (2015)
Enrico Steiger, Alexander Zipf
Erstellung eines OSM-Straßengraphen mit TMC-LCL-Informationen. AGIT Journal Angew. Geoinformatik 1 (2015)
Jamal Jokar Arsanjani, Peter Mooney, Marco Helbich, Alexander Zipf
An Exploration of Future Patterns of the Contributions to OpenStreetMap and Development of a Contribution Index. Trans. GIS 19 (6) (2015)
René Westerholt, Bernd Resch, Alexander Zipf
A local scale-sensitive indicator of spatial autocorrelation for assessing high- and low-value clusters in multiscale datasets. Int. J. Geogr. Inf. Sci. 29 (5) (2015)
Enrico Steiger, João Porto de Albuquerque, Alexander Zipf
An Advanced Systematic Literature Review on Spatiotemporal Analyses of Twitter Data. Trans. GIS 19 (6) (2015)
Enrico Steiger, René Westerholt, Bernd Resch, Alexander Zipf
Twitter as an indicator for whereabouts of people? Correlating Twitter with UK census data. Comput. Environ. Urban Syst. 54 (2015)
Benjamin Herfort, João Porto de Albuquerque, Svend-Jonas Schelhorn, Alexander Zipf
Exploring the Geographical Relations Between Social Media and Flood Phenomena to Improve Situational Awareness - A Study About the River Elbe Flood in June 2013. AGILE Conf. (2014)
Hongchao Fan, Alexander Zipf, Qing Fu
Estimation of Building Types on OpenStreetMap Based on Urban Morphology Analysis. AGILE Conf. (2014)
Svend-Jonas Schelhorn, Benjamin Herfort, Richard Leiner, Alexander Zipf, João Porto de Albuquerque
Identifying elements at risk from OpenStreetMap: The case of flooding. ISCRAM (2014)
Johannes Lauer, Ludwig Richter, Timothy Ellersiek, Alexander Zipf
TeleAgro+: analysis framework for agricultural telematics data. IWCTS@SIGSPATIAL (2014)
John P. Wilson, Qiming Zhou, Alexander Zipf
Taking Stock. Trans. GIS 18 (6) (2014)
Hongchao Fan, Alexander Zipf, Qing Fu, Pascal Neis
Quality assessment for building footprints data on OpenStreetMap. Int. J. Geogr. Inf. Sci. 28 (4) (2014)
Benjamin Herfort, João Porto de Albuquerque, Svend-Jonas Schelhorn, Alexander Zipf
Does the spatiotemporal distribution of tweets match the spatiotemporal distribution of flood phenomena? A study about the River Elbe Flood in June 2013. ISCRAM (2014)
Mohamed Bakillah, Steve H. L. Liang, Amin Mobasheri, Jamal Jokar Arsanjani, Alexander Zipf
Fine-resolution population mapping using OpenStreetMap points-of-interest. Int. J. Geogr. Inf. Sci. 28 (9) (2014)
Enrico Steiger, Timothy Ellersiek, Alexander Zipf
Explorative public transport flow analysis from uncertain social media data. GEOGROWD (2014)
Christopher Barron, Pascal Neis, Alexander Zipf
A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis. Trans. GIS 18 (6) (2014)
Pascal Neis, Dennis Zielstra, Alexander Zipf
Comparison of Volunteered Geographic Information Data Contributions and Community Development for Selected World Regions. Future Internet 5 (2) (2013)
Jamal Jokar Arsanjani, Marco Helbich, Mohamed Bakillah, Julian Hagenauer, Alexander Zipf
Toward mapping land-use patterns from volunteered geographic information. Int. J. Geogr. Inf. Sci. 27 (12) (2013)

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Publication Activity (10 Years)

Top Topics

Top Venues

Alexander Zipf