Developing Location Based Services for Tourism. The Service Providers' View. - Alexander Zipf; Rainer Malaka (ENTER, 2001)

TGML - extending GML by Temporal Constructs - A Proposal for a Spatiotemporal Framework in XML. - Alexander Zipf; Sven Krüger (ACM-GIS, 2001)

User-Adaptive Maps for Location-Based Services (LBS) for Tourism. - Alexander Zipf (ENTER, 2002)

Realisierung eines mobilen Geodatenservers für PDAs auf der Basis von Standards des OpenGIS-Consortiums. - Stefan Schmitz; Alexander Zipf; Hidir Aras (Mobile Datenbanken und Informationssysteme, 2002)

Intelligent Systems for Tourism. - Steffen Staab; Hannes Werthner; Francesco Ricci 001; Alexander Zipf; Ulrike Gretzel; Daniel R. Fesenmaier; Cécile Paris; Craig A. Knoblock (IEEE Intell. Syst., 2002)

Using Focus Maps to Ease Map Reading - Developing Smart Applications for Mobile Devices. - Alexander Zipf; Kai-Florian Richter (Künstliche Intell., 2002)

Location-based Mobile Tourist Services - First User Experiences. - Barbara Schmidt-Belz; Heimo Laamanen; Stefan Poslad; Alexander Zipf (ENTER, 2003)

Anforderungen an mobile Geo-Datenbanken für Katastropheninformations- und -warnsysteme. - Alexander Zipf; Richard Leiner (Database Mechanisms for Mobile Applications, 2003)

Generation of VRML city models for focus based tour animations: integration, modeling and presentation of heterogeneous geo-data sources. - Arne Schilling; Alexander Zipf (Web3D, 2003)

Supporting Multi-Modal Interfaces for Adaptive Tour Planning. - Jochen Häußler; Alexander Zipf (Ann. GIS, 2004)

Finding geodata that otherwise would have been forgotten - GeoXchange: a SDI-based portal for sharing free geodata. - Sven Tschirner; Alexander Zipf (GIR, 2005)

MOBILE MAPS 2005 interactivity and usability of map-based mobile services. - Alexander Zipf; Liqiu Meng (Mobile HCI, 2005)

Using Styled Layer Descriptor (SLD) for the Dynamic Generation of User- and Context-Adaptive Mobile Maps - A Technical Framework. - Alexander Zipf (W2GIS, 2005)

How do location-based services hit Google? - Bin Jiang 004; Alexander Zipf (Comput. Environ. Urban Syst., 2006)

Implementing adaptive mobile GI services based on ontologies: Examples from pedestrian navigation support. - Alexander Zipf; Matthias Jöst (Comput. Environ. Urban Syst., 2006)

OGC Web Processing Service Interface for Web Service Orchestration Aggregating Geo-processing Services in a Bomb Threat Scenario. - Beate Stollberg; Alexander Zipf (W2GIS, 2007)

Vector based Mapping of Polygons on Irregular Terrain Meshes for Web 3D Map Services. - Arne Schilling; Jens Basanow; Alexander Zipf (WEBIST (2), 2007)

A visual editor for OGC SLD files for automating the configuration of WMS and mobile map applications. - Albrecht Weiser; Alexander Zipf (Location Based Services and TeleCartography, 2007)

Interoperable Routing Services in the Context of Evacuation Schemes due to Urban Flooding. - Holger Albert; Gernot Belger; Vinicius de Camargo; Michael Haase; Kaj Lippert; Pascal Neis; Erik Pasche; Alexander Zipf (EnviroInfo, 2008)

How to Define 3D Geoprocessing Operations for the OGC Web Processing Service (WPS)? Towards a Classification of 3D Operations. - Rüdiger Göbel; Alexander Zipf (ICCSA (1), 2008)

Towards Standards-Based Processing of Digital Elevation Models for Grid Computing through Web Processing Service (WPS). - Sandra Lanig; Arne Schilling; Beate Stollberg; Alexander Zipf (ICCSA (2), 2008)

Extending the OGC OpenLS Route Service to 3D for an interoperable realisation of 3D focus maps with landmarks. - Pascal Neis; Alexander Zipf (J. Locat. Based Serv., 2008)

Towards interoperable atmospheric (air flow) models in Spatial Data Infrastructures using OGC Web Services - state of the art and research questions. - Wolfgang Johann Eder; Alexander Zipf (EnviroInfo (1), 2009)

Interoperable processing of digital elevation models in grid infrastructures. - Sandra Lanig; Alexander Zipf (Earth Sci. Informatics, 2009)

Geoprozessîerung in Erneuerbaren Energien. - Sandra Lanig; Alexander Zipf; Martina Klärle (Geoinformatik, 2010)

Generating web-based 3D City Models from OpenStreetMap: The current situation in Germany. - Martin Over; Arne Schilling; S. Neubauer; Alexander Zipf (Comput. Environ. Urban Syst., 2010)

Interoperable integration of high precision 3D laser data and large scale geoanalysis in a SDI for Sutra inscriptions in Sichuan (China). - Sandra Lanig; Arne Schilling; Michael Auer; Bernhard Höfle; Nicolas Billen; Alexander Zipf (Geoinformatik, 2011)

Formal definition of a user-adaptive and length-optimal routing graph for complex indoor environments. - Marcus Goetz; Alexander Zipf (Geo spatial Inf. Sci., 2011)

Location-Based Services. - Alexander Zipf; Matthias Jöst (Springer Handbook of Geographic Information, 2012)

RIgeo.net - A Lab for Spatial Exploration of Historical Data. - Lukas Loos; Alexander Zipf (DH, 2012)

The Street Network Evolution of Crowdsourced Maps: OpenStreetMap in Germany 2007-2011. - Pascal Neis; Dennis Zielstra; Alexander Zipf (Future Internet, 2012)

Towards Defining a Framework for the Automatic Derivation of 3D CityGML Models from Volunteered Geographic Information. - Marcus Goetz; Alexander Zipf (Int. J. 3 D Inf. Model., 2012)

Using Crowdsourced Geodata for Agent-Based Indoor Evacuation Simulations. - Marcus Goetz; Alexander Zipf (ISPRS Int. J. Geo Inf., 2012)

Towards Automatic Vandalism Detection in OpenStreetMap. - Pascal Neis; Marcus Goetz; Alexander Zipf (ISPRS Int. J. Geo Inf., 2012)

Analyzing the Contributor Activity of a Volunteered Geographic Information Project - The Case of OpenStreetMap. - Pascal Neis; Alexander Zipf (ISPRS Int. J. Geo Inf., 2012)

Real time query propagation strategies with Lightweight Coordination Calculus (LCC) for ad hoc networks of geospatial databases. - Mohamed Bakillah; Mir Abolfazl Mostafavi; Steve H. L. Liang; Alexander Zipf (J. Netw. Comput. Appl., 2012)

Taking Stock. - John P. Wilson; David O'Sullivan; Alexander Zipf (Trans. GIS, 2012)

Area-wide roof plane segmentation in airborne LiDAR point clouds. - Andreas Jochem; Bernhard Höfle; Volker Wichmann; Martin Rutzinger; Alexander Zipf (Comput. Environ. Urban Syst., 2012)

Publish/Subscribe System Based on Event Calculus to Support Real-Time Multi-Agent Evacuation Simulation. - Mohamed Bakillah; Alexander Zipf; Steve H. L. Liang (AGILE Conf., 2013)

The use of Volunteered Geographic Information (VGI) and Crowdsourcing in Disaster Management: a Systematic Literature Review. - Flávio Eduardo Aoki Horita; Lívia Castro Degrossi; Luiz Fernando Ferreira Gomes de Assis; Alexander Zipf; João Porto de Albuquerque (AMCIS, 2013)

A mobile sensor data acquisition and evaluation framework for crowd sourcing data. - Nicolas Billen; Johannes Lauer; Alexander Zipf (GEOGROWD, 2013)

Processing crowd sourced sensor data: from data acquisition to application. - Johannes Lauer; Nicolas Billen; Alexander Zipf (CTS@SIGSPATIAL, 2013)

Comparison of Volunteered Geographic Information Data Contributions and Community Development for Selected World Regions. - Pascal Neis; Dennis Zielstra; Alexander Zipf (Future Internet, 2013)

Toward mapping land-use patterns from volunteered geographic information. - Jamal Jokar Arsanjani; Marco Helbich; Mohamed Bakillah; Julian Hagenauer; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2013)

Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model. - Mohamed Bakillah; Steve H. L. Liang; Alexander Zipf; Jamal Jokar Arsanjani (ISPRS Int. J. Geo Inf., 2013)

A dynamic and context-aware semantic mediation service for discovering and fusion of heterogeneous sensor data. - Mohamed Bakillah; Steve H. L. Liang; Alexander Zipf; Mir Abolfazl Mostafavi (J. Spatial Inf. Sci., 2013)

Indoor Route Planning with Volunteered Geographic Information on a (Mobile) Web-Based Platform. - Marcus Goetz; Alexander Zipf (Progress in Location-Based Services, 2013)

Adapting OSM-3D to the Mobile World: Challenges and Potentials. - Ming Li 032; Marcus Goetz; Hongchao Fan; Alexander Zipf (Progress in Location-Based Services, 2013)

Analyzing Human Activities Through Volunteered Geographic Information: Using Flickr to Analyze Spatial and Temporal Pattern of Tourist Accommodation. - Yeran Sun; Hongchao Fan; Marco Helbich; Alexander Zipf (Progress in Location-Based Services, 2013)

Estimation of Building Types on OpenStreetMap Based on Urban Morphology Analysis. - Hongchao Fan; Alexander Zipf; Qing Fu (AGILE Conf., 2014)

Exploring the Geographical Relations Between Social Media and Flood Phenomena to Improve Situational Awareness - A Study About the River Elbe Flood in June 2013. - Benjamin Herfort; João Porto de Albuquerque; Svend-Jonas Schelhorn; Alexander Zipf (AGILE Conf., 2014)

TeleAgro+: analysis framework for agricultural telematics data. - Johannes Lauer; Ludwig Richter; Timothy Ellersiek; Alexander Zipf (IWCTS@SIGSPATIAL, 2014)

Explorative public transport flow analysis from uncertain social media data. - Enrico Steiger; Timothy Ellersiek; Alexander Zipf (GEOGROWD, 2014)

Does the spatiotemporal distribution of tweets match the spatiotemporal distribution of flood phenomena? A study about the River Elbe Flood in June 2013. - Benjamin Herfort; João Porto de Albuquerque; Svend-Jonas Schelhorn; Alexander Zipf (ISCRAM, 2014)

Identifying elements at risk from OpenStreetMap: The case of flooding. - Svend-Jonas Schelhorn; Benjamin Herfort; Richard Leiner; Alexander Zipf; João Porto de Albuquerque (ISCRAM, 2014)

Fine-resolution population mapping using OpenStreetMap points-of-interest. - Mohamed Bakillah; Steve H. L. Liang; Amin Mobasheri; Jamal Jokar Arsanjani; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2014)

Quality assessment for building footprints data on OpenStreetMap. - Hongchao Fan; Alexander Zipf; Qing Fu; Pascal Neis (Int. J. Geogr. Inf. Sci., 2014)

A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis. - Christopher Barron; Pascal Neis; Alexander Zipf (Trans. GIS, 2014)

Taking Stock. - John P. Wilson; Qiming Zhou; Alexander Zipf (Trans. GIS, 2014)

A Conceptual Quality Framework for Volunteered Geographic Information. - Andrea Ballatore; Alexander Zipf (COSIT, 2015)

Towards assessing the quality of volunteered geographic information from OpenStreetMap for identifying critical infrastructures. - Benjamin Herfort; Melanie Eckle; João Porto de Albuquerque; Alexander Zipf (ISCRAM, 2015)

Erstellung eines OSM-Straßengraphen mit TMC-LCL-Informationen. - Enrico Steiger; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2015)

A geographic approach for combining social media and authoritative data towards identifying useful information for disaster management. - João Porto de Albuquerque; Benjamin Herfort; Alexander Brenning; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2015)

A local scale-sensitive indicator of spatial autocorrelation for assessing high- and low-value clusters in multiscale datasets. - René Westerholt; Bernd Resch; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2015)

Quality Evaluation of VGI Using Authoritative Data - A Comparison with Land Use Data in Southern Germany. - Helen Dorn; Tobias Törnros; Alexander Zipf (ISPRS Int. J. Geo Inf., 2015)

An Exploration of Future Patterns of the Contributions to OpenStreetMap and Development of a Contribution Index. - Jamal Jokar Arsanjani; Peter Mooney; Marco Helbich; Alexander Zipf (Trans. GIS, 2015)

An Advanced Systematic Literature Review on Spatiotemporal Analyses of Twitter Data. - Enrico Steiger; João Porto de Albuquerque; Alexander Zipf (Trans. GIS, 2015)

Twitter as an indicator for whereabouts of people? Correlating Twitter with UK census data. - Enrico Steiger; René Westerholt; Bernd Resch; Alexander Zipf (Comput. Environ. Urban Syst., 2015)

Road-based travel recommendation using geo-tagged images. - Yeran Sun; Hongchao Fan; Mohamed Bakillah; Alexander Zipf (Comput. Environ. Urban Syst., 2015)

Quality Assessment of the Contributed Land Use Information from OpenStreetMap Versus Authoritative Datasets. - Jamal Jokar Arsanjani; Peter Mooney; Alexander Zipf; Anne Schauss (OpenStreetMap in GIScience, 2015)

An Introduction to OpenStreetMap in Geographic Information Science: Experiences, Research, and Applications. - Jamal Jokar Arsanjani; Alexander Zipf; Peter Mooney; Marco Helbich (OpenStreetMap in GIScience, 2015)

Where the Streets Have Known Names. - Paulo Dias Almeida; Jorge Gustavo Rocha; Andrea Ballatore; Alexander Zipf (ICCSA (4), 2016)

Leveraging OpenStreetMap to Support Flood Risk Management in Municipalities: A Prototype Decision Support System. - Melanie Eckle; João Porto de Albuquerque; Benjamin Herfort; Alexander Zipf; Richard Leiner; Rüdiger Wolff; Clemens Jacobs (ISCRAM, 2016)

MayaArch3D - webbasierte archäologische 3D-Visualisierung und Analyse. - Michael Auer; Lukas Loos; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2016)

Entscheidungsunterstützung im Hochwassermanagement - Integration von Kritischer Infrastruktur und Notfallrouting auf der Basis freier Geodaten. - Melanie Eckle; João Porto de Albuquerque; Benjamin Herfort; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2016)

GIS-Werkzeuge zur Verbesserung der barrierefreien Routenplanung aus dem Projekt CAP4Access. - Stefan Hahmann; Alexander Zipf; Adam Rousell; Amin Mobasheri; Lukas Loos; Maxim A. Rylov; Enrico Steiger; Johannes Lauer (AGIT Journal Angew. Geoinformatik, 2016)

Echtzeitverkehrslage basierend auf OSM-Daten im OpenRouteService. - Enrico Steiger; Maksim Rylov; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2016)

A polygon-based approach for matching OpenStreetMap road networks with regional transit authority data. - Hongchao Fan; Bisheng Yang; Alexander Zipf; Adam Rousell (Int. J. Geogr. Inf. Sci., 2016)

Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks. - Enrico Steiger; Bernd Resch; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2016)

Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap. - Ahmed Loai Ali; Nuttha Sirilertworakul; Alexander Zipf; Amin Mobasheri (ISPRS Int. J. Geo Inf., 2016)

Defining Fitness-for-Use for Crowdsourced Points of Interest (POI). - David Jonietz; Alexander Zipf (ISPRS Int. J. Geo Inf., 2016)

Temporal Analysis on Contribution Inequality in OpenStreetMap: A Comparative Study for Four Countries. - Anran Yang; Hongchao Fan; Ning Jing; Yeran Sun; Alexander Zipf (ISPRS Int. J. Geo Inf., 2016)

Show Me the Data!: Structuring Archaeological Data to Deliver Interactive, Transparent 3D Reconstructions in a 3D WebGIS. - Jennifer von Schwerin; Mike Lyons; Lukas Loos; Nicolas Billen; Michael Auer; Alexander Zipf (3D Research Challenges in Cultural Heritage, 2016)

Exploring the geographical context for quality assessment of VGI in flood management domain. - Lívia Castro Degrossi; João Porto de Albuquerque; Camilo Ernesto Restrepo-Estrada; Amin Mobasheri; Alexander Zipf (AMCIS, 2017)

A Framework of Quality Assessment Methods for Crowdsourced Geographic Information: a Systematic Literature Review. - Lívia Castro Degrossi; João Porto de Albuquerque; Roberto dos Santos Rocha; Alexander Zipf (ISCRAM, 2017)

Towards using Volunteered Geographic Information to monitor post-disaster recovery in tourist destinations. - Melanie Eckle; Benjamin Herfort; Yingwei Yan; Chiao-Ling Kuo; Alexander Zipf (ISCRAM, 2017)

DeepVGI: Deep Learning with Volunteered Geographic Information. - Jiaoyan Chen 001; Alexander Zipf (WWW (Companion Volume), 2017)

Open land cover from OpenStreetMap and remote sensing. - Michael Schultz; Janek Voss; Michael Auer; Sarah Carter; Alexander Zipf (Int. J. Appl. Earth Obs. Geoinformation, 2017)

Einsatz von OpenStreetMap-Daten zur Erstellung von Landnutzungsprodukten am Beispiel von OSM Landuse Landcover. - Janek Voss; Michael Auer; Michael Schultz; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2017)

Detecting repetitive structures on building footprints for the purposes of 3D modeling and reconstruction. - Hongchao Fan; Alexander Zipf; Hangbin Wu (Int. J. Digit. Earth, 2017)

Completeness of citizen science biodiversity data from a volunteered geographic information perspective. - Clemens Jacobs; Alexander Zipf (Geo spatial Inf. Sci., 2017)

The OpenStreetMap folksonomy and its evolution. - Franz-Benjamin Mocnik; Alexander Zipf; Martin Raifer (Geo spatial Inf. Sci., 2017)

Partizipative Methoden zur Erfassung und Verarbeitung von Geoinformationen. - Luisa Griesbaum; Melanie Eckle; Benjamin Herfort; Martin Raifer; Alexander Zipf (HMD Prax. Wirtsch., 2017)

Towards Detecting the Crowd Involved in Social Events. - Wei Huang 014; Hongchao Fan; Alexander Zipf (ISPRS Int. J. Geo Inf., 2017)

Highlighting Current Trends in Volunteered Geographic Information. - David Jonietz; Vyron Antoniou; Linda See; Alexander Zipf (ISPRS Int. J. Geo Inf., 2017)

Towards a Landmark-Based Pedestrian Navigation Service Using OSM Data. - Adam Rousell; Alexander Zipf (ISPRS Int. J. Geo Inf., 2017)

Monitoring and Assessing Post-Disaster Tourism Recovery Using Geotagged Social Media Data. - Yingwei Yan; Melanie Eckle; Chiao-Ling Kuo; Benjamin Herfort; Hongchao Fan; Alexander Zipf (ISPRS Int. J. Geo Inf., 2017)

Towards the Statistical Analysis and Visualization of Places (Short Paper). - René Westerholt; Mathias Gröbe; Alexander Zipf; Dirk Burghardt (GIScience, 2018)

Towards Using the Potential of OpenStreetMap History for Disaster Activation Monitoring. - Michael Auer; Melanie Eckle; Sascha Fendrich; Luisa Griesbaum; Fabian Kowatsch; Sabrina Marx; Martin Raifer; Moritz Schott; Rafael Troilo; Alexander Zipf (ISCRAM, 2018)

Ohsome - eine Plattform zur Analyse raumzeitlicher Entwicklungen von OpenStreetMap-Daten für intrinsische QualitätsbewertungenOhsome - An OpenStreetMap History Analytics Platform for Intrinsic Quality Assessments. - Michael Auer; Melanie Eckle; Sascha Fendrich; Fabian Kowatsch; Lukas Loos; Sabrina Marx; Martin Raifer; Moritz Schott; Rafael Troilo; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2018)

Assessing spatiotemporal predictability of LBSN: a case study of three Foursquare datasets. - Ming Li 032; René Westerholt; Hongchao Fan; Alexander Zipf (GeoInformatica, 2018)

Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists. - Yingwei Yan; Chiao-Ling Kuo; Chen-Chieh Feng; Wei Huang 014; Hongchao Fan; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2018)

Do people communicate about their whereabouts? Investigating the relation between user-generated text messages and Foursquare check-in places. - Ming Li 032; René Westerholt; Alexander Zipf (Geo spatial Inf. Sci., 2018)

Routing through open spaces - A performance comparison of algorithms. - Stefan Hahmann; Jakob Miksch; Bernd Resch; Johannes Lauer; Alexander Zipf (Geo spatial Inf. Sci., 2018)

OpenStreetMap data quality enrichment through awareness raising and collective action tools - experiences from a European project. - Amin Mobasheri; Alexander Zipf; Louise Francis (Geo spatial Inf. Sci., 2018)

3D WebGIS: From Visualization to Analysis. An Efficient Browser-Based 3D Line-of-Sight Analysis. - Michael Auer; Alexander Zipf (ISPRS Int. J. Geo Inf., 2018)

Efficient Method for POI/ROI Discovery Using Flickr Geotagged Photos. - Chiao-Ling Kuo; Ta-Chien Chan; I-Chun Fan; Alexander Zipf (ISPRS Int. J. Geo Inf., 2018)

Graph-Based Matching of Points-of-Interest from Collaborative Geo-Datasets. - Tessio Novack; Robin Peters; Alexander Zipf (ISPRS Int. J. Geo Inf., 2018)

Volunteered Geographic Information for Disaster Risk Reduction - The Missing Maps Approach and Its Potential within the Red Cross and Red Crescent Movement. - Stefan Scholz; Paul Knight; Melanie Eckle; Sabrina Marx; Alexander Zipf (Remote. Sens., 2018)

Enrichment of OpenStreetMap Data Completeness with Sidewalk Geometries Using Data Mining Techniques. - Amin Mobasheri; Haosheng Huang; Lívia Castro Degrossi; Alexander Zipf (Sensors, 2018)

A System for Generating Customized Pleasant Pedestrian Routes Based on OpenStreetMap Data. - Tessio Novack; Zhiyong Wang 004; Alexander Zipf (Sensors, 2018)

A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information. - Lívia Castro Degrossi; João Porto de Albuquerque; Roberto dos Santos Rocha; Alexander Zipf (Trans. GIS, 2018)

An exploratory analysis of usability of Flickr tags for land use/land cover attribution. - Yingwei Yan; Michael Schultz; Alexander Zipf (Geo spatial Inf. Sci., 2019)

Mapping Human Settlements with Higher Accuracy and Less Volunteer Efforts by Combining Crowdsourcing and Deep Learning. - Benjamin Herfort; Hao Li 019; Sascha Fendrich; Sven Lautenbach; Alexander Zipf (Remote. Sens., 2019)

Feasibility of Using Grammars to Infer Room Semantics. - Xuke Hu; Hongchao Fan; Alexey Noskov; Alexander Zipf; Zhiyong Wang 004; Jianga Shang (Remote. Sens., 2019)

Deep Learning From Multiple Crowds: A Case Study of Humanitarian Mapping. - Jiaoyan Chen 001; Yan Zhou; Alexander Zipf; Hongchao Fan (IEEE Trans. Geosci. Remote. Sens., 2019)

Leveraging User Generated Geoinformation for Humanitarian Aid: Potentials and Challenges. - Alexander Zipf (GISTAM, 2020)

Data-driven approach to learning salience models of indoor landmarks by using genetic programming. - Xuke Hu; Lei Ding; Jianga Shang; Hongchao Fan; Tessio Novack; Alexey Noskov; Alexander Zipf (Int. J. Digit. Earth, 2020)

Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience. - Yingwei Yan; Chen-Chieh Feng; Wei Huang 014; Hongchao Fan; Yi-Chen Wang; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2020)

Towards Detecting Building Facades with Graffiti Artwork Based on Street View Images. - Tessio Novack; Leonard Vorbeck; Heinrich Lorei; Alexander Zipf (ISPRS Int. J. Geo Inf., 2020)

A Multi-Sensor Fusion Framework Based on Coupled Residual Convolutional Neural Networks. - Hao Li 019; Pedram Ghamisi; Behnood Rasti; Zhaoyan Wu; Aurélie Shapiro; Michael Schultz; Alexander Zipf (Remote. Sens., 2020)

Mapping Public Urban Green Spaces based on OpenStreetMap and Sentinel-2 imagery using Belief Functions: Data and Source Code. - Christina Ludwig; Robert Hecht; Sven Lautenbach; Martin Schorcht; Alexander Zipf (heiDATA, 2020)

Assessing shop completeness in OpenStreetMap for two federal states in Germany. - Josephine Brückner; Moritz Schott; Alexander Zipf; Sven Lautenbach (AGILE Conf., 2021)

Flood Impact Assessment on Road Network and Healthcare Access at the example of Jakarta, Indonesia. - Isabell G. Klipper; Alexander Zipf; Sven Lautenbach (AGILE Conf., 2021)

Detecting OpenStreetMap missing buildings by transferring pre-trained deep neural networks. - Jan Pisl; Hao Li 019; Sven Lautenbach; Benjamin Herfort; Alexander Zipf (AGILE Conf., 2021)

Comparison of Simulated Fast and Green Routes for Cyclists and Pedestrians. - Christina Ludwig; Sven Lautenbach; Eva-Marie Schömann; Alexander Zipf (GIScience (II), 2021)

Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning. - Hao Li 019; Johannes Zech; Christina Ludwig; Sascha Fendrich; Aurélie Shapiro; Michael Schultz; Alexander Zipf (Int. J. Appl. Earth Obs. Geoinformation, 2021)

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. - Oliver Fritz; Michael Auer; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2021)

Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning. - Xuke Hu; Alexey Noskov; Hongchao Fan; Tessio Novack; Hao Li 019; Fuqiang Gu; Jianga Shang; Alexander Zipf (Int. J. Geogr. Inf. Sci., 2021)

The Sketch Map Tool Facilitates the Assessment of OpenStreetMap Data for Participatory Mapping. - Carolin Klonner; Maximilian Hartmann; Rebecca Dischl; Lily Djami; Liana O. Anderson; Martin Raifer; Fernanda Lima-Silva; Lívia Castro Degrossi; Alexander Zipf; João Porto de Albuquerque (ISPRS Int. J. Geo Inf., 2021)

Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions. - Christina Ludwig; Robert Hecht; Sven Lautenbach; Martin Schorcht; Alexander Zipf (ISPRS Int. J. Geo Inf., 2021)

The Impact of Community Happenings in OpenStreetMap - Establishing a Framework for Online Community Member Activity Analyses. - Moritz Schott; Asher Yair Grinberger; Sven Lautenbach; Alexander Zipf (ISPRS Int. J. Geo Inf., 2021)

Analysing the Impact of Large Data Imports in OpenStreetMap. - Raphael Witt; Lukas Loos; Alexander Zipf (ISPRS Int. J. Geo Inf., 2021)

An analysis of the spatial and temporal distribution of large-scale data production events in OpenStreetMap. - Asher Yair Grinberger; Moritz Schott; Martin Raifer; Alexander Zipf (Trans. GIS, 2021)

Room semantics inference using random forest and relational graph convolutional networks: A case study of research building. - Xuke Hu; Hongchao Fan; Alexey Noskov; Zhiyong Wang 004; Alexander Zipf; Fuqiang Gu; Jianga Shang (Trans. GIS, 2021)

Regional variations of context-based association rules in OpenStreetMap. - Christina Ludwig; Sascha Fendrich; Alexander Zipf (Trans. GIS, 2021)

Quiet Route Planning for Pedestrians in Traffic Noise Polluted Environments. - Zhiyong Wang 004; Tessio Novack; Yingwei Yan; Alexander Zipf (IEEE Trans. Intell. Transp. Syst., 2021)

Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning [Research Data]. - Hao Li 019; Johannes Zech; Christina Ludwig; Sascha Fendrich; Aurélie Shapiro; Michael Schultz; Alexander Zipf (heiDATA, 2021)

OpenStreetMap Tools for Humanitarian Aid. - Alexander Zipf; Amandaus Butzer; Marcel Reinmuth; Michael Auer; Benjamin Herfort; Adam Rousell; Sven Lautenbach; Stefan Gumbrich (GEOINFO, 2022)

Leveraging OpenStreetMap and Multimodal Remote Sensing Data with Joint Deep Learning for Wastewater Treatment Plants Detection. - Hao Li 019; Johannes Zech; Danfeng Hong; Pedram Ghamisi; Michael Schultz; Alexander Zipf (Int. J. Appl. Earth Obs. Geoinformation, 2022)

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. - Oliver Fritz; Sabrina Marx; Benjamin Herfort; Soraya Kaiser; Moritz Langer; Josefine Lenz; Christian Thiel 001; Alexander Zipf (AGIT Journal Angew. Geoinformatik, 2022)

SocialMedia2Traffic: Derivation of Traffic Information from Social Media Data. - Mohammed Zia; Johannes Fürle; Christina Ludwig; Sven Lautenbach; Stefan Gumbrich; Alexander Zipf (ISPRS Int. J. Geo Inf., 2022)

Improving OpenStreetMap missing building detection using few-shot transfer learning in sub-Saharan Africa. - Hao Li 019; Benjamin Herfort; Sven Lautenbach; Jiaoyan Chen 001; Alexander Zipf (Trans. GIS, 2022)

Understanding spatiotemporal trip purposes of urban micro-mobility from the lens of dockless e-scooter sharing. - Hao Li 019; Zhendong Yuan; Tessio Novack; Wei Huang 014; Alexander Zipf (Comput. Environ. Urban Syst., 2022)

Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning [Research Data]. - Hao Li 019; Johannes Zech; Christina Ludwig; Sascha Fendrich; Aurélie Shapiro; Michael Schultz; Alexander Zipf (heiDATA, 2022)

Exploring MapSwipe as a Crowdsourcing Tool for (Rapid) Damage Assessment: The Case of the 2021 Haiti Earthquake. - Simon Groß; Benjamin Herfort; Sabrina Marx; Alexander Zipf (AGILE Conf., 2023)

Semi-Supervised Learning from Street-View Images and OpenStreetMap for Automatic Building Height Estimation. - Hao Li 019; Zhendong Yuan; Gabriel Dax; Gefei Kong; Hongchao Fan; Alexander Zipf; Martin Werner 001 (GIScience, 2023)

Using VGI for Social Good: Potentials and Pitfalls for Using OSM for Humanitarian Aid and Climate Mitigation. - Alexander Zipf (GISTAM, 2023)

Multiscale Multifeature Vision Learning for Scalable and Efficient Wastewater Treatment Plant Detection using Hi-Res Satellite Imagery and OSM. - Sukanya Randhawa; Guntaj Randhawa; Olena Sivak; Johannes Zech; Maria Martin; Alexander Zipf; Yuze Li (UrbanAI@SIGSPATIAL, 2023)

Cross-City Matters: A Multimodal Remote Sensing Benchmark Dataset for Cross-City Semantic Segmentation using High-Resolution Domain Adaptation Networks. - Danfeng Hong; Bing Zhang 001; Hao Li 019; Yuxuan Li; Jing Yao 002; Chenyu Li 002; Martin Werner 001; Jocelyn Chanussot; Alexander Zipf; Xiao Xiang Zhu 001 (CoRR, 2023)

Private Vehicles Greenhouse Gas Emission Estimation at Street Level for Berlin Based on Open Data. - Veit Ulrich; Josephine Brückner; Michael Schultz; Sanam Noreen Vardag; Christina Ludwig; Johannes Fürle; Mohammed Zia; Sven Lautenbach; Alexander Zipf (ISPRS Int. J. Geo Inf., 2023)

Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegpyti [Research Data]. - Steffen Knoblauch; Hao Li 019; Sven Lautenbach; Yara Elshiaty; Antônio A. de A. Rocha; Bernd Resch; Dorian Arifi; Thomas Jänisch; Ivonne Morales; Alexander Zipf (heiDATA, 2023)

Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegpyti [Research Data]. - Steffen Knoblauch; Hao Li 019; Sven Lautenbach; Yara Elshiaty; Antônio A. de A. Rocha; Bernd Resch; Dorian Arifi; Thomas Jänisch; Ivonne Morales; Alexander Zipf (heiDATA, 2023)

Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegypti. - Steffen Knoblauch; Hao Li 019; Sven Lautenbach; Yara Elshiaty; Antônio A. de A. Rocha; Bernd Resch; Dorian Arifi; Thomas Jänisch; Ivonne Morales; Alexander Zipf (Int. J. Appl. Earth Obs. Geoinformation, 2023)

Evidence for Systematic Bias in the Spatial Memory of Large Language Models. - Nir Fulman; Abdulkadir Memduhoglu; Alexander Zipf (GeoExT@ECIR, 2024)

UAV-Assisted Municipal Solid Waste Monitoring for Informed Disposal Decisions. - Steffen Knoblauch; Levi Szamek; Jonas Wenk; Iddy Chazua; Innocent Maholi; Maciej Adamiak; Sven Lautenbach; Alexander Zipf (GoodIT, 2024)

Distortions in Judged Spatial Relations in Large Language Models: The Dawn of Natural Language Geographic Data? - Nir Fulman; Abdulkadir Memduhoglu; Alexander Zipf (CoRR, 2024)

Paved or unpaved? A Deep Learning derived Road Surface Global Dataset from Mapillary Street-View Imagery. - Sukanya Randhawa; Eren Aygun; Guntaj Randhawa; Benjamin Herfort; Sven Lautenbach; Alexander Zipf (CoRR, 2024)

An investigation of the temporality of OpenStreetMap data contribution activities. - Tessio Novack; Leonard Vorbeck; Alexander Zipf (Geo spatial Inf. Sci., 2024)

OpenStreetMap land use for Europe "Research Data". - Michael Schultz; Hao Li 019; Zhaoyhan Wu; Daniel Wiell; Michael Auer; Alexander Zipf (heiDATA, 2024)

UAV-Assisted Municipal Solid Waste Monitoring for Informed Disposal Decisions [Research Data]. - Steffen Knoblauch; Levi Szamek; Jonas Wenk; Iddy Chazua; Innocent Maholi; Maciej Adamiak; Sven Lautenbach; Alexander Zipf (heiDATA, 2024)

OpenStreetMap land use for Europe "Research Data". - Michael Schultz; Hao Li 019; Zhaoyhan Wu; Daniel Wiell; Michael Auer; Alexander Zipf (heiDATA, 2024)

Enriching building function classification using Large Language Model embeddings of OpenStreetMap Tags. - Abdulkadir Memduhoglu; Nir Fulman; Alexander Zipf (Earth Sci. Informatics, 2024)

Deep learning enhanced road traffic analysis: Scalable vehicle detection and velocity estimation using PlanetScope imagery. - Maciej Adamiak; Yulia Grinblat; Julian Psotta; Nir Fulman; Himshikhar Mazumdar; Shiyu Tang; Alexander Zipf (Int. J. Appl. Earth Obs. Geoinformation, 2025)

STVAE: Skip connection driven Two-stream property fusion Variational AutoEncoder for cross-region wastewater treatment plant semantic segmentation. - Yuze Li; Yan Zhang; Sukanya Randhawa; Chunling Yang; Alexander Zipf (Inf. Fusion, 2025)