Büro + Postadresse:
Im Neuenheimer Feld 368
Raum 109
69120 Heidelberg
zipf@uni-heidelberg.de
Tel: +49 6221 54-5533
Fax: +49 6221 54-4529

Zweitbüro:
Mathematikon (HeiGIT)
Berliner Str. 45
4. OG, Raum 001
69120 Heidelberg

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Geographisches Institut > Geoinformatik > Mitarbeitende >

Prof. Dr. Alexander Zipf

Main Research Areas

Volunteered Geographic Information (VGI), Crowdsourcing, Citizen Science
Analysis and Processing of Geographic Data
Integrating new methods from Geoinformatics & GIScience in Geography

Short CV

Prof. Dr. Alexander Zipf is chair of GIScience (Geoinformatics) at Heidelberg University (Department of Geography) since late 2009. He is member of the Centre for Scientific Computing (IWR) and founding member of the Heidelberg Center for the Environment (HCE).
From 2012-2014 he was Managing Director of the Department of Geography, Heidelberg University. In 2011-2012 he acted as Vice Dean of the Faculty for Chemistry and Geosciences, Heidelberg University. Currently he is busy establishing the Heidelberg Institute for Geoinformation Technology (HeiGIT).

2012 -2018 he was speaker of the graduate school “CrowdAnalyser - Spatio-temporal Analysis of User-generated Content“. He is also member of the editorial board of several journals and organized a set of conferences and workshops. 2012-2015 he was regional editor of the ISI Journal Transactions in GIS (Wiley). Currently he is associated editor of the international journal Geo-spatial Information Science (GSIS) by Taylor & Francis (open access).

Before coming to Heidelberg he led the Chair of Cartography at Bonn University and earlier was Professor for Applied Computer Science and Geoinformatics at the University of Applied Sciences in Mainz, Germany. He has a background in Mathematics and Geography from Heidelberg University and finished his PHD at the European Media Laboratory EML in Heidelberg where he was the first PhD student. There he also conducted further research as a PostDoc for 3 years.

Jokar Arsanjani, J., Zipf, A., Mooney, P., Helbich, M. (Eds.)(2015): OpenStreetMap in GIScience: Experiences, Research, and Applications. Series: Lecture Notes in Geoinformation and Cartography. 2015, VII, 373 p. Springer Science. Heidelberg, Berlin. ISBN 978-3-319-14279-1

Journal Publications:
(see here for Conference publications and book chapters)

2024

Knoblauch, S., Yin, M. S., Chatrinan, K., de Aragão Rocha, A. A., Haddawy, P., Biljecki, F., Lautenbach, S., Resch, B., Arifi, D., Jänisch, T., Morales, I. & Zipf, A. (2024): High-resolution mapping of urban Aedes aegypti immature abundance through breeding site detection based on satellite and street view imagery, Scientific Reports volume 14.
Foshag, K., Fürle, J., Ludwig, C., Fallmann, J., Lautenbach, S., Rupp, S., Burst, P., Betsch, M., Zipf, A., Aeschbach, N., 2024. How to assess the needs of vulnerable population groups towards heat-sensitive routing?: An evidence-based and practical approach to reducing urban heat stress. ERDKUNDE 1–33. https://doi.org/ 10.3112/erdkunde.2024.01.01

2023

Hong, D., Zhang, B., Li, H., Li, Y., Yao, J., Li, C, Werner, M., Chanussot, J., Zipf, A., Zhu, X. X. (2023): Cross-city matters: A multimodal remote sensing benchmark dataset for cross-city semantic segmentation using high-resolution domain adaptation networks, Remote Sensing of Environment, Volume 299. https://doi.org/10.1016/j.rse.2023.113856
Herfort, B., Lautenbach, Porto de Albuquerque, S. J., Anderson, J., Zipf, A. (2023): A spatio-temporal analysis investigating completeness and inequalities of global urban building data in OpenStreetMap, Nature Communications volume 14, Article number: 3985
Martinez-Soto, A., Fürle, J., Zipf, A. (2023): Urban Heat Island Intensity Prediction in the Context of Heat Waves: An Evaluation of Model Performance. Engineering Proceedings. 39(1):80. https://doi.org/10.3390/engproc2023039080
Ulrich, V., Schultz, M., Lautenbach, S., Zipf, A. (2023): Carbon fluxes related to land use and land cover change in Baden-Württemberg. Environ Monit Assess 195, 616. https://doi.org/10.1007/s10661-023-11141-9
Knoblauch S, Li H, Lautenbach S, Elshiaty Y, Rocha A, Resch B, Arifi D, Jänisch T, Morales I, Zipf A. (2023): Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegypti, International Journal of Applied Earth Observations and Geoinformation, 119, https://doi.org/10.1016/j.jag.2023.103304
Ulrich V, Brückner J, Schultz M, Vardag SN, Ludwig C, Fürle J, Zia M, Lautenbach S, Zipf A. (2023): Private Vehicles Greenhouse Gas Emission Estimation at Street Level for Berlin Based on Open Data. ISPRS International Journal of Geo-Information. 12(4):138. https://doi.org/10.3390/ijgi12040138
Benedyk, A., Moldavski, A., Reichert, M., Reinhard, I., Lohr, S., Schwarz, K., Berhe, O., Höflich, A., Lautenbach, S., von der Goltz, C., Ebner-Priemer, U., Zipf, A., Tost, H., Meyer-Lindenberg, A., (2023): Initial response to the COVID-19 pandemic on real-life well-being, social contact and roaming behavior in patients with schizophrenia, major depression and healthy controls: A longitudinal ecological momentary assessment study. European Neuropsychopharmacology S0924977X23000172. https://doi.org/10.1016/j.euroneuro.2023.01.008

2022

Petricola, S., Reinmuth, M., Lautenbach, S., Hatfiel, C., Zipf, A. (2022): Assessing road criticality and loss of healthcare accessibility during floods: the case of Cyclone Idai, Mozambique 2019. Internat. Journal of Health Geographies 21, 14 (2022). https://doi.org/10.1186/s12942-022-00315-2
Novack, T.; Vorbeck, L.; Zipf, A. (2022) An investigation of the temporality of OpenStreetMap data contribution activities, Geo-spatial Information Science, DOI: 10.1080/10095020.2022.2124127
Zia, M.; Fürle, J.; Ludwig, C.; Lautenbach, S.; Gumbrich, S.; Zipf, A. SocialMedia2Traffic: Derivation of Traffic Information from Social Media Data. ISPRS Int. J. Geo-Inf. 2022, 11, 482. https://doi.org/10.3390/ijgi11090482
Reichert, M., Brüßler, S., Reinhard, I. et al. The association of stress and physical activity: Mind the ecological fallacy. Ger J Exerc Sport Res 52, 282–289 (2022). https://doi.org/10.1007/s12662-022-00823-0
Li, H. & Zipf, A. (2022): A conceptual model for converting openstreetmap contribution to geospatial machine learning training data, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B4-2022, 253–259. DOI:10.5194/isprs-archives-XLIII-B4-2022-253-2022
Li, H., Yuan, Z., Novack, T., Huang, W., Zipf, A., (2022): Understanding spatiotemporal trip purposes of urban micro-mobility from the lens of dockless e-scooter sharing. Computers, Environment and Urban Systems, 96, June 2022, 101848, https://doi.org/10.1016/j.compenvurbsys.2022.101848
Li, H., Zech, J., Hong, D., Ghamisi, P., Schultz, M., Zipf, A. (2022): Leveraging OpenStreetMap and Multimodal Remote Sensing Data with Joint Deep Learning for Wastewater Treatment Plants Detection. International Journal of Applied Earth Observation and Geoinformation, Volume 110, June 2022, 102804, https://doi.org/10.1016/j.jag.2022.102804
Li, H., Herfort, B., Lautenbach, S., Chen, J. & Zipf, A. (2022): Improving OpenStreetMap missing building detection using few-shot transfer learning in sub-Saharan Africa. Transactions in GIS, 00, 1– 22. https://doi.org/10.1111/tgis.12941
M. Jungmann, S. N. Vardag, F. Kutzner, F. Keppler, M. Schmidt, N. Aeschbach, U. Gerhard, A. Zipf, S. Lautenbach, A. Siegmund, T. Goeschl & A. Butz (2022):, Zooming-in for climate action—hyperlocal greenhouse gas data for mitigation action?. Climate Action 1, 8 (2022). https://doi.org/10.1007/s44168-022-00007-4

2021

Lautenbach, S. , Sendlinger, L. , Schultz, M., Ludwig, C., Klonner, C., Neumann, D., Zipf, A, (2021): OpenStreetMap als Datenquelle für Umweltinformationssysteme – Grundlagen und Anwendungsbeispiele, in Fischer-Stabel, Peter (Hrsg.) Umweltinformationssysteme - Grundlagen einer angewandten Geoinformatik/Geo-IT, Wichmann, 188-197.
Fritz, O., Auer, M., Zipf, A. (2021): Entwicklung eines Regressionsmodells für die Vollständigkeitsanalyse des globalen OpenStreetMap-Datenbestands an Nahverkehrs-Busstrecken. AGIT ‒ Journal für Angewandte Geoinformatik. 7-2021.
Witt, R.; Loos, L.; Zipf, A. (2021): Analysing the Impact of Large Data Imports in OpenStreetMap. ISPRS Int. J. Geo-Inf. 2021, 10, 528. https://doi.org/10.3390/ijgi10080528
Li, H. J. Zech, C. Ludwig, S. Fendrich, A. Shapiro, M. Schultz, A. Zipf (2021): Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning.. International Journal of Applied Earth Observation and Geoinformation, Vol 104, 2021, 102571.
https://doi.org/10.1016/j.jag.2021.102571.
De Albuquerque, J. P., L. Anderson, N. Calvillo, J. Coaffee, M. Cunha, L. Degrossi, G. Dolif, F. Horita, C. Klonner, F. Lima-Silva, V. Marchezini, M .H. da Mata Martins, D.-Grajales, V. Pitidis, C. Rudorff, N. Tkacz, R. Traijber, A. Zipf (2021): The role of data in transformations to sustainability: a critical research agenda. Current Opinion in Environmental Sustainability. Vol. 49, 2021, pp 153-163.
https://doi.org/10.1016/j.cosust.2021.06.009.
Ludwig, C.; Hecht, R.; Lautenbach, S.; Schorcht, M.; Zipf, A. (2021): Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions. ISPRS Int. J. Geo-Inf. 2021, 10, 251. https://doi.org/10.3390/ijgi10040251
Klonner, C., Hartmann, M., Dischl, R., Djami, L., Anderson, L., Raifer, M., Lima-Silva, F., Degrossi, L. C., Zipf, A., de Albuquerque, J. P. (2021): The Sketch Map Tool Facilitates the Assessment of OpenStreetMap Data for Participatory Mapping. ISPRS International Journal of Geo-Information. 10:130. https://doi.org/10.3390/ijgi10030130
Grinberger, AY, Schott, M, Raifer, M, Zipf, A. (2021): An analysis of the spatial and temporal distribution of large‐scale data production events in OpenStreetMap. Transactions in GIS. 2021; 00: 1– 20.
https://doi.org/10.1111/tgis.12746
Schott, M., Grinberger, A.Y., Lautenbach, S., Zipf, A. (2021):
The Impact of Community Happenings in OpenStreetMap — Establishing a Framework for Online Community Member Activity Analyses. ISPRS Int. J. Geo-Inf. 2021, 10, 164.
https://doi.org/10.3390/ijgi10030164
Herfort, B., Lautenbach, S., Porto de Albuquerque, J., Anderson, J., Zipf, A. (2021): The evolution of humanitarian mapping within the OpenStreetMap community. Scientific Reports 11, 3037 (2021).
DOI: 10.1038/s41598-021-82404-z
Hu, X., Noskov, A., Fan, H., Novack, T., Li, H., Gu, F., Shang, J. & Zipf, A. (2021): Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning, International Journal of Geographical Information Science.
DOI: 10.1080/13658816.2020.1861282

2020

Reichert, M.; Braun, U.; Gan, G.; Reinhard, I.; Giurgiu, M.; Ma, R.; Zang, Z.; Hennig, O.; Koch, E. D.; Wieland, L.; Schweiger, J.; Inta, D.; Hoell, A.; Akdeniz, C.; Zipf, A.; Ebner-Priemer, U.W.; Tost, H.; Meyer-Lindenberg, A.(2020): A neural mechanism for affective well-being: Subgenual cingulate cortex mediates real-life effects of nonexercise activity on energy. Science Advances.
https://doi.org/10.1126/sciadv.aaz8934
Ludwig, C.; Fendrich, S.; Zipf, A. (2020): Regional variations of context‐based association rules in OpenStreetMap. Transactions in GIS. Wiley.
DOI: https://doi.org/10.1111/tgis.12694
Geldsetzer, P.; Reinmuth, M.; O Ouma, P.; Lautenbach, S.; A Okiro, E.; Bärnighausen, T.; Zipf, A. (2020): Mapping physical access to health care for older adults in sub-Saharan Africa and implications for the COVID-19 response: a cross-sectional analysis The LANCET Healthy Longevity, Vol 1, Issue 1. https://doi.org/10.1016/S2666-7568(20)30010-6
Li, H.; Ghamisi, P.; Rasti, B.; Wu, Z.; Shapiro, A.; Schultz, M.; Zipf, A. (2020): A Multi-Sensor Fusion Framework Based on Coupled Residual Convolutional Neural Networks. Remote Sensing. 2020, 12, 2067. DOI: https://doi.org/10.3390/rs12122067
Z. Wang, T. Novack, Y. Yan and A. Zipf (2020): “Quiet Route Planning for Pedestrians in Traffic Noise Polluted Environments,” in IEEE Transactions on Intelligent Transportation Systems, http://doi:10.1109/TITS.2020.3004660.
E. D. Koch, H. Tost , U. Braun, G. Gan, M. Giurgiu, I. Reinhard, A. Zipf, A. Meyer‐Lindenberg, U Ebner‐Priemer, M. Reichert (2020): Relationships between Incidental Physical Activity, Exercise, and Sports with subsequent Mood in Adolescents. The Scandinavian Journal of Medicine & Science in Sport. https://doi.org/10.1111/sms.13774
Li, H., Herfort, B., Huang, W., Zia, M. and Zipf, A. (2020): Exploration of OpenStreetMap Missing Built-up Areas using Twitter Hierarchical Clustering and Deep Learning in Mozambique. ISPRS Journal of Photogrammetry and Remote Sensing. https://doi.org/10.1016/j.isprsjprs.2020.05.007
Ries, M., Mechler, K., Smith, D. L., Herfort, B., Visintini, J., Santana, A. V., Zipf, A., Lautenbach, S. (2020): Intuitive Global Insight Into COVID‐19 Clinical Research Activities—The “COVID‐19 Map of Hope”, The Journal of Clinical Pharmacology, https://doi.org/10.1002/jcph.1643.
Yan, Y., C. Feng, W. Huang, H. Fan, Y. Wang & A. Zipf (2020): Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience. International Journal of Geographical Information Science,
DOI: 10.1080/13658816.2020.1730848
Novack T., Vorbeck L., Lorei H., Zipf A. (2020): Towards Detecting Building Facades with Graffiti Artwork Based on Street View Images. ISPRS International Journal of Geo-Information. 2020; 9(2):98.
Hu, X., Ding, L., Shang, J., Fan, H., Novack, T., Noskov, A. & Zipf, A. (2020): Data-driven approach to learning salience models of indoor landmarks by using genetic programming, International Journal of Digital Earth, https://doi.org/10.1080/17538947.2019.1701109
Reichert, M., Braun, U., Lautenbach, S., Zipf, A., Ebner-Priemer, U., Tost, H., Meyer-Lindenberg, A. (2020): Studying the impact of built environments on human mental health in everyday life: methodological developments, state-of-the-art and technological frontiers. Current Opinion in Psychology 32, 158-164.
https://doi.org/10.1016/j.copsyc.2019.08.026
Hu, X.; Fan, H.; Noskov, A. ; Wang, Z.; Zipf, A.; Gu, F.; Shang, J. (2020, accepted): Room Semantics Inference Using Random Forest and Relational Graph Convolutional Network. A Case Study of Research Buildings. Transactions in GIS. Wiley.
DOI: 10.1111/tgis.12664

2019

Herfort, B., Li, H., Fendrich, S., Lautenbach, S., Zipf, A. (2019): Mapping Human Settlements with Higher Accuracy and Less Volunteer Efforts by Combining Crowdsourcing and Deep Learning. Remote Sensing 11(15), 1799. https://doi.org/10.3390/rs11151799
Tost, H., Reichert, M., Braun, U., Reinhard, I., Peters, R. , Lautenbach, S., Andreas, H., Schwarz, E., Ebner-Priemer, U., Zipf, A., Meyer-Lindenberg, A. (2019): Neural correlates of individual differences in affective benefit of real-life urban green space exposure. Nature Neuroscience. https://doi.org/10.1038/s41593-019-0451-y
Hu X., Fan H., Noskov A., Zipf A., Wang Z., Shang J. (2019): Feasibility of Using Grammars to Infer Room Semantics. Remote Sensing. 11(13):1535. https://doi.org/10.3390/rs11131535
Raifer, M., Troilo, R., Kowatsch, F., Auer, M., Loos, L., Marx, S., Przybill, K., Fendrich, S., Mocnik, F.-B.& Zipf, A. (2019): OSHDB: a framework for spatio-temporal analysis of OpenStreetMap history data.Open Geospatial Data, Software and Standards 2019 4:3. https://doi.org/10.1186/s40965-019-0061-3
Alexey Noskov & Alexander Zipf (2019): Open-data-driven embeddable quality management services for map-based web applications. Big Earth Data, 2:4, 395-422, 2019 https://doi.org/10.1080/20964471.2019.1592077
Yan, Y., Schultz, M., Zipf, A. (2019): An exploratory analysis of usability of Flickr tags for land use/land cover attribution, Geo-spatial Information Science (GSIS), Taylor & Francis. https://doi.org/10.1080/10095020.2018.1560044

2018

Novack, T., Wang, Z., Zipf, A. (2018): A System for Generating Customized Pleasant Pedestrian Routes Based on OpenStreetMap Data. Sensors 2018, 18, 3794. https://doi.org/10.3390/s18113794
Huang, W., Xu, S., Yan, Y. and Zipf, A. (2018): An exploration of the interaction between urban human activities and daily traffic conditions: A case study of Toronto, Canada. Cities, 2018. https://doi.org/10.1016/j.cities.2018.07.001
Degrossi L.C., J. Porto de Albuquerque, R. dos Santos Rocha, A. Zipf (2018): A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information. Transactions in GIS (TGIS). Wiley. DOI:10.1111/tgis.12329.
Chen, J., Y. Zhou, A. Zipf and H. Fan (2018): Deep Learning from Multiple Crowds: A Case Study of Humanitarian Mapping. IEEE Transactions on Geoscience and Remote Sensing (TGRS). 1-10. https://doi.org/10.1109/TGRS.2018.2868748
Scholz, S., Knight, P., Eckle, M., Marx, S., Zipf, A. (2018): 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), 1239, doi: 10.3390/rs10081239.
Li, M., Westerholt, R., Zipf, A. (2018): Do people communicate about their whereabouts? Investigating the relation between user-generated text messages and Foursquare check-in places. Geo-spatial Information Science (GSIS), V21, I3. pp. 159-172. https://doi.org/10.1080/10095020.2018.1498669.
Huang, W. and Li, S. (2018): An approach for understanding human activity patterns with the motivations behind. International Journal of Geographical Information Science (IJGIS), 2018.
https://doi.org/10.1080/13658816.2018.1530354
Yingwei Yan , C.-L. Kuo, C.-C. Feng, W. Huang, H. Fan & A. Zipf (2018) : Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists. International Journal of Geographical Information Science (IJGIS), https://doi.org/10.1080/13658816.2018.1458989
Mocnik, F.-B., Mobasheri, A., Zipf, A. (2018): Open source data mining infrastructure for exploring and analysing OpenStreetMap. Open Geospatial Data, Software and Standards.
Novack T., R. Peters, A. Zipf (2018): Graph-Based Matching of Points-of-Interest from Collaborative Geo-Datasets. ISPRS International Journal of Geo-Information, 7(3), 117-134. DOI:10.3390/ijgi7030117.
Mobasheri A., Huang H., Degrossi L.C. and A. Zipf (2018): Enrichment of OpenStreetMap Data Completeness with Sidewalk Geometries Using Data Mining Techniques. Sensors 2018, 18(2), 509; doi:10.3390/s18020509
Kuo, C.-L., T.C. Chan, I.-C. Fan, A. Zipf (2018): Efficient Method for POI/ROI Discovery Using Flickr Geotagged Photos. ISPRS Int. J. Geo-Inf. 2018, 7(3), 121; doi:10.3390/ijgi7030121.
Mobasheri, A., Zipf, A., Francis. L. (2018): OpenStreetMap Data Quality Enrichment through Awareness Raising and Collective Action Tools – Experiences from a European project Geo-Spatial information Science, 2018. https://doi.org/10.1080/10095020.2018.1493817
Auer, M., Zipf, A. (2018). 3D WebGIS: From Visualization to Analysis. An Efficient Browser-Based 3D Line-of-Sight Analysis. ISPRS Int. J. Geo-Inf. 7, no. 7: 279. doi: 10.3390/ijgi7070279.

2017

Miksch, J., Hahmann, S., Resch, B., Lauer, J., Zipf, A. (2017): Routing Through Open Spaces - A Performance Comparison Of Algorithms. Geo-Spatial information Science, 2017. Taylor & Francis. Geo-Spatial information Science, 2017. Taylor & Francis. https://doi.org/10.1080/10095020.2017.1399675
Huang, W., Fan, H., and Zipf, A. (2017): Towards Detecting the Crowd Involved in Social Events. ISPRS International Journal of Geo-Information, 6(10), 305. DOI: 10.3390/ijgi6100305.
Schultz, M., Voss, J., Auer, M., Carter, S., and Zipf, A. (2017): Open land cover from OpenStreetMap and remote sensing. International Journal of Applied Earth Observation and Geoinformation, 63, pp. 206-213. DOI: 10.1016/j.jag.2017.07.014.
Mocnik, F.-B., Zipf, A., Raifer, M. (2017): The OpenStreetMap folksonomy and its evolution. Geo-spatial Information Science. DOI: 10.1080/10095020.2017.1368193.
Jonietz, D., V. Antonio, L. See, A. Zipf (2017): Highlighting Current Trends in Volunteered Geographic Information. International Journal of Geo-Information. 2017, 6(7), 202; doi:10.3390/ijgi6070202 Special Issue:Volunteered Geographic Information (VGI): http://www.mdpi.com/journal/ijgi/special_issues/VGI
Yan, Y., M. Eckle, C.-L. Kuo, B. Herfort, H. Fan and A. Zipf (2017): Monitoring and Assessing Post-Disaster Tourism Recovery Using Geotagged Social Media Data. International Journal of Geo-Information, ISPRS IJGI. 6(5), 144; doi:10.3390/ijgi6050144
Griesbaum, L., Eckle, M., Herfort, B., Raifer, M., Zipf, A. (2017):Partizipative Methoden zur Erfassung und Verarbeitung von Geoinformationen - Das Beispiel OpenStreetMap. HMD Praxis der Wirtschaftsinformatik. Special Issue "Online Participation".
Rousell A. and Zipf A. (2017): Towards a landmark based pedestrian navigation service using OSM data. International Journal of Geo-Information, ISPRS IJGI, 6(3): 64.
Jacobs C. and A. Zipf (2017): Completeness of Citizen Science Biodiversity Data from a Volunteered Geographic Information Perspective. Geo-Spatial information Science, 20(1): 3-13. Taylor & Francis. DOI: 10.1080/10095020.2017.1288424.
Reichert, M., Tost, H., Reinhard, I., Schlotz, W., Zipf, A., Salize, H.-J., Meyer-Lindenberg, A., & Ebner-Priemer, U. W. (2017). Exercise vs. non-exercise activity: e-diaries unravel distinct effects on mood. Medicine & Science in Sports & Exercise, 49(4): 763-773.

2016

Steiger, E., B. Resch, J. Porto de Albuquerque, A. Zipf (2016): Mining and correlating traffic events from human sensor observations with official transport data using self-organizing-maps. Transportation Research Part C: Emerging Technologies. Vol 73, Dec.16, pp 91–104. http://dx.doi.org/10.1016/j.trc.2016.10.010
Li, M., Westerholt, R., Fan, H., Zipf, A. (2016): Assessing spatiotemporal predictability of LBSN: A case study of three Foursquare datasets. GeoInformatica. DOI:10.1007/s10707-016-0279-5.
Fan, H., A. Zipf and H. Wu (2016): Detecting repetitive structures on building footprints for the purpose of 3D modeling and reconstruction. International Journal of Digital Earth (IJDE). 1-13. http://dx.doi.org/10.1080/17538947.2016.1252433
Westerholt, R., Steiger, E., Resch, B. and Zipf, A. (2016): Abundant Topological Outliers in Social Media Data and Their Effect on Spatial Analysis. PLOS ONE, 11 (9), e0162360. DOI:10.1371/journal.pone.0162360.
Jonietz, D., Zipf, A. (2016,): Defining fitness-for-use for crowdsourced points of interest (POI). ISPRS Internat. Journal of Geo-Information. 2016. 5(9), 149; DOI:10.3390/ijgi5090149
Reichert, M., Tost, H., Reinhard, I., Zipf, A., Salize, H., Meyer-Lindenberg, A., Ebner-Priemer, U.W. (2016): Within-subject associations between mood dimensions and non-exercise activity: An ambulatory assessment approach using repeated real-time and objective data. Frontiers in Psychology. 7:918. DOI:10.3389/fpsyg.2016.00918
Ali A.L., Sirilertworakul, N., Zipf, A., Mobasheri, A. (2016): Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap. ISPRS Int. J. Geo-Inf. 2016, 5(6), 87; DOI:10.3390/ijgi5060087
John, S., Hahmann, S., Rousell, A., Loewner, M., Zipf, A. (2016). Deriving incline values for street networks from voluntarily collected GPS traces. Cartography and Geographic Information Science (CaGIS). Taylor & Francis. DOI:10.1080/15230406.2016.1190300
Törnros, T., Dorn, H., Reichert, M., Ebner-Priemer, U., Salize, H.-J., Tost, H., Meyer-Lindenberg, A., Zipf, A. (2016): A comparison of temporal and location-based sampling strategies for GPS-triggered electronic diaries." Geospatial Health. Vol 11, No 3. DOI:10.4081/gh.2016.473.
Reichert, M., Törnros, T., Hoell, A., Dorn, H., Tost, H., Salize, H.-J., Meyer-Lindenberg, A., Zipf, A., Ebner-Priemer, U. W. (2016). Using Ambulatory Assessment for experience sampling and the mapping of environmental risk factors in everyday life. Die Psychiatrie. 2/2016. 94-102. (pdf)
Yang, A., H. Fan, N. Jing, Y. Sun, A. Zipf (2016): Temporal Analysis on Contribution Inequality in OpenStreetMap: A Comparative Study for Four Countries. ISPRS International Journal of Geo-Information. 5(1), 5.
Sun, Y., Fan, H., Li, M., Zipf, A. (2016): Identifying city center using human travel flows generated from location-based social networking data. Environment and Planning B: Planning and Design, 43(3). DOI: 10.1177/0265813515617642

2015

Fan, H., Yang, B., Zipf, A. , Rousell, A. (2015): A polygon-based approach for matching OpenStreetMap road networks with authority data. International Journal of Geographical Information Science (IJGIS), volume and issue pending, pp. pending, Taylor & Francis. DOI:10.1080/13658816.2015.1100732
Steiger, E., Resch, B., Zipf, A. (2015): Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks. International Journal of Geographical Information Science (IJGIS), volume and issue pending, pp. pending, Taylor & Francis. doi:10.1080/13658816.2015.1099658
Steiger, E., Westerholt, R., Resch, B. and Zipf, A. (2015): Twitter as an indicator for whereabouts of people? Correlating Twitter with UK census data. Computers, Environment and Urban Systems (CEUS), 54, pp. 255–265. Elsevier. doi:10.1016/j.compenvurbsys.2015.09.007
Dorn, H., Törnros, T. & Zipf, A. (2015): Quality Evaluation of VGI using Authoritative Data – A Comparison with Land Use Data in Southern Germany. ISPRS International Journal of Geo-Information. Vol 4(3), pp. 1657-1671, doi: 10.3390/ijgi4031657
Steiger, E.; Porto de Albuquerque, J.; Zipf, A. (2015): An advanced systematic literature review on spatiotemporal analyses of Twitter data. Transactions in GIS, 19(6): 809–834. Wiley. doi:10.1111/tgis.12132
Westerholt, R., Resch, B., Zipf, A. (2015): A local scale-sensitive indicator of spatial autocorrelation for assessing high- and low-value clusters in multi-scale datasets. International Journal of Geographical Information Science (IJGIS), 29 (5), pp. 868-887, Taylor & Francis. DOI: 10.1080/13658816.2014.1002499.
Jokar Arsanjani, J., Mooney, P., Helbich, M., Zipf, A., (2015): An exploration of future patterns of the contributions to OpenStreetMap and development of a Contribution Index, Transactions in GIS, 19(6): 896–914. John Wiley & Sons. DOI: 10.1111/tgis.12139.
Porto de Albuquerque, J., B. Herfort, A. Brenning, A. Zipf (2015): A Geographic Approach for Combining Social Media and Authoritative Data towards Improving Information Extraction for Disaster Management: A Study on the Twitter usage in the River Elbe Flood of June 2013. International Journal of Geographical Information Science, 29(4): 667-689. Taylor & Francis. DOI: 10.1080/13658816.2014.996567.

2014

Bakillah, M., Liang, S. H. L., Mobasheri, A., Jokar Arsanjani, J. & Zipf, A. (2014): Fine resolution population mapping using OpenStreetMap points-of-interest. International Journal of Geographical Information Science (IJGIS), 28(9): 1940-1963. Taylor & Francis. DOI: 10.1080/13658816.2014.909045
Fan, H., Zipf, A., Fu, Q. & Neis, P. (2014): Quality assessment for building footprints data on OpenStreetMap. International Journal of Geographical Information Science (IJGIS). DOI: 10.1080/13658816.2013.867495.
Neis, P. & Zielstra, D. (2014): Recent Developments and Future Trends in Volunteered Geographic Information Research: The Case of OpenStreetMap. Future Internet Vol. 6(1), pp. 76-106. DOI:10.3390/fi6010076 (Open Access).

2013

Barron, C., Neis, P. & Zipf, A. (2013): A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis. , Transactions in GIS, DOI: 10.1111/tgis.12073.
Sun, Y., Fan, H., Bakillah, M. & Zipf, A. (2013): Road-based Travel Recommendation Using Geo-tagged Images. Computers, Environment and Urban Systems (CEUS). Elsevier.
Bakillah, M., Liang, S.H.L, Zipf, A. & Jokar Arsanjani, J. (2013): Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model. ISPRS International Journal of Geo-Information. Vol. 2(3), pp. 766-796. DOI:10.3390/ijgi2030766.
Neis, P., Zielstra, D. & Zipf, A. (2013): Comparison of Volunteered Geographic Information Data Contributions and Community Development for Selected World Regions. Future Internet. Vol. 5, pp. 282-300.
Jokar Arsanjani, J., Helbich, M., Bakillah, M., Hagenauer,J. & Zipf, A. (2013): Toward mapping land-use patterns from volunteered geographic information. International Journal of Geographical Information Science (IJGIS). Taylor & Francis. DOI: 10.1080/13658816.2013.800871.
Li, M., Bakillah, M. & Zipf, A. (2013): Embedding context-awareness to improve 3D geo-visualization for mobile users. gis.SCIENCE. Vol.3, pp. 81-86.
Bakillah, M., Liang, S.H.L., Zipf, A. & Mostafavi, M. A. (2013).A Dynamic and Context-Aware Semantic Mediation Service for Discovering and Fusion of Heterogeneous Sensor Data. Journal of Spatial Information Science (JOSIS). Vol.6, pp. 155-185.

2012

Bakillah, M., Mostafavi, M. A., Liang, S.H.L. & Zipf, A. (2012): Fuzzy Query Propagation in Sensor Networks. International Journal On Advances in Intelligent Systems, Vol.5(3/4).
Neis, P., Goetz, M. & Zipf, A. (2012): Towards Automatic Vandalism Detection in OpenStreetMap. ISPRS International Journal of Geo-Information. Vol.1(3), pp.315-332. DOI:10.3390/ijgi1030315.
Resch, B., Zipf, A., Breuss-Schneeweis, P., Beinat, E. & Boher, M. (2012): Towards the Live City - Paving the Way to Real-time Urbanism. International Journal on Advances in Intelligent Systems, Vol. 5(3&4), pp. 470-482.
Goetz, M. & Zipf, A. (2012): Using Crowdsourced Indoor Geodata for Agent-Based Indoor Evacuation Simulations. ISPRS International Journal of Geo-Information. Vol.1(2), pp.186-208. MDPI. DOI:10.3390/ijgi1020186.
Neis, P. & Zipf, A. (2012): Analyzing the Contributor Activity of a Volunteered Geographic Information Project – The Case of OpenStreetMap. ISPRS International Journal of Geo-Information. Vol.1(2), pp.146-165. MDPI. DOI:10.3390/ijgi1020146 .
Bakillah, M., Mostafavi, M.A., Liang, S.H.L. & Zipf, A. (2012): Real Time Query Propagation Strategies with Light-weight Coordination Calculus (LCC) for Ad Hoc Networks of Geospatial Databases. Journal of Network and Computer Applications (JNCA). Elsevier. ISSN: 1084-8045. http://dx.doi.org/10.1016/j.jnca.2012.07.015.
Jochem, A., Höfle, B., Wichmann, V., Rutzinger, M. & Zipf, A. (2012): Area-wide roof plane segmentation in airborne LiDAR point clouds. Computers, Environment and Urban Systems. Vol. 36(1), pp. 54-64.
Neis, P., Zielstra, D. & Zipf, A. (2012): The Street Network Evolution of Crowdsourced Maps - OpenStreetMap in Germany 2007-2011. Future Internet. Special Issue "NeoGeography and WikiPlanning" (Eds: B. Murgante, G. Borruso, M. Gibin), Vol.4, pp.1-21 (DOI 10.3390/fi4010001). ISSN 1999-5903.
Goetz, M. & Zipf, A. (2012): Towards Defining a Framework for the Automatic Derivation of 3D CityGML Models from Volunteered Geographic Information. International Journal of 3-D Information Modeling (IJ3DIM), Vol.1(2), pp. 1-16, IGI-Global.

2011

Goetz, M. & Zipf, A. (2011): Formal Definition of an User-adaptive and Length-optimal Routing Graph for Complex Indoor Environments. Geo-spatial Information Science (GSIS). Vol.14(2). Springer.

2010

Over, M., Schilling, A., Neubauer, S. & Zipf, A. (2010): Generating web-based 3D City Models from OpenStreetMap: The current situation in Germany. CEUS. Computers, Environment and Urban Systems.

2009

Kurzbach, S., Lanig, S., Pasche, E. & Zipf, A. (2009): Benefits of Grid Computing for Flood Modeling in Service-Oriented Spatial Data Infrastructures. GIS.Science. Die Zeitschrift für Geoinformatik. Vol.3, pp. 89-97.
Lanig, S. & Zipf, A. (2009): Interoperable processing of digital elevation models in grid infrastructures. Earth Science Informatics. Vol.2, pp.107–116. DOI 10.1007/s12145-009-0030-y.

2008

Neis, P. & Zipf, A. (2008): Generating 3D Focus Maps for the (mobile) Web - an interoperable approach. International Journal of Location Based Services (JLBS). Vol. 2(2).

2006

Weiser, A., Neis, P & Zipf, A. (2006): Orchestrierung von OGC Web Diensten im Katastrophenmanagement - am Beispiel eines Emergency Route Service auf Basis der OpenLS Spezifikation. In: GIS - Zeitschrift für Geoinformatik. Vol.9, pp. 35-41.

2005

Zipf, A & Jöst, M. (2005): Implementing Adaptive Mobile GI Services based on Ontologies - Examples for pedestrian navigation support. CEUS - Computers, Environment and Urban Systems - An International Journal. Special Issue on LBS and UbiGIS. Pegamon Press, Elsevier.

2004

Zipf, A. & Häußler, J. (2004): Supporting Multi-Modal Interfaces for Adaptive Tour Planning - A Comparsion to OpenLS Specifications. Geographic Information Sciences. Special Issue on LBS and UbiGIS. CPGIS. Berkeley. California. Vol.10(2), pp. 117-127.

2003

Zipf, A. (2003): Forschungsfragen für kontextadaptive personalisierte Kartographie. Kartographische Nachrichten (KN). Themenheft "Mobile Kartographie". Vol.1, pp. 6-11.

2002

Zipf, A. (2002): Location aware mobility support for tourists. Trends & Controversies. IEEE Intelligent Systems. Journal. Special Issue on "Intelligent Systems for Tourism". November/December 2002. S.57-59.
Zipf, A. & Richter, K.F. (2002): Using Focus Maps to Ease Map Reading. Developing Smart Applications for Mobile Devices. Künstliche Intelligenz (KI) (Artificial Intelligence). Special Issue: Spatial Cognition. Vol.4, S.35-37.
Zipf, A. & Schilling, A. (2002): Dynamische Generierung von VR-Stadtmodellen aus 2D- und 3D-Geodaten für Tourenanimationen. GIS - Geo-Informations-Systeme. Zeitschrift für raumbezogene Information und Entscheidungen. Vol.6, S. 24-30.

2001

Zipf, A. &Aras, H. (2001): Realisierung verteilter Geodatenserver mit der Open-GIS SFS für CORBA. GIS - Geo-Informations-Systeme. Zeitschrift für raumbezogene Information und Entscheidungen. Heidelberg. Vol.3, S. 36-41.
Zipf, A. (2001): Interoperables GIS für LBS. Mitteilungsblatt des deutschen Vereins für Vermessungswesen. Landesverein Rheinland-Pfalz e.V. Heft 2001. 50. Jahrgang. S.6-18. (eingeladener Beitrag).
Zipf, A. & Krüger, S. (2001): Flexible Verwaltung temporaler 3D-Geodaten. GIS - Geo-Informations-Systeme. Zeitschrift für raumbezogene Information und Entscheidungen. Vol.12, S. 20-27.
Zipf, A. (2001): Interoperable GIS-Infrastruktur für Location-Based Services (LBS) - M-Commerce und GIS im Spannungsfeld zwischen Standardisierung und Forschung. GIS Geo-Informations-Systeme. Zeitschrift für raumbezogene Information und Entscheidungen. Vol.9, S. 37-43.
Zipf, A. (2001): Projektabschlußbericht: Deep Map/GIS. HGG-Journal. Journal der Heidelberger Geographischen Gesellschaft. Heidelberg.

2000

Zipf, A., Häußler, J., Chandrasekhara, V. & Malaka, R. (2000):Deep Map - Mobiles GIS hilft Touristen bei der Navigation. HGG-Journal. 2000. Heidelberg.
Weinmann, R., Häußler, J. Zipf, A. & Malaka, R. (2000): Die Besucher Heidelbergs informieren - die multimediale historische Deep Map Datenbank. HGG-Journal. 2000/1. Heidelberg.

1999

Zipf, A. & Malaka, R. (1999): Durch Raum und Zeit - Deep Map - das historische Touristeninformationssystem für Heidelberg. GeoBit. Vol.5, S.30-34.
Meusburger, P. & Zipf, A. (1998): Auf dem Weg zu einem 4D-Geoinformationssystem - das Projekt Deep Map. HGG-Journal, Heidelberg. Vol.13, S. 212-214.
Zipf, A. (1999): Tourenplanung im Web und Navigation durch Raum und Zeit mit Deep Map. Arc-Aktuell. ESRI, Kranzberg.

until 1998

Zipf, A. (1997): Geographie im Cyberspace. Geographische Forschung und Lehre im "virtuellen Raum". HGG Journal, Heidelberg. Vol.11, S. 221-235.
Zipf, A. (1996): Geographie und Internet. HGG Journal, Heidelberg. Vol.10, S. 172-186.

Chair of the GIScience Research Group, University of Heidelberg
Member of the Extended Board of Directors of the Interdisciplinary Center for Scientific Computing (IWR)
Funding Member of the Heidelberg Center for the Environment (HCE)
Speaker of the Graduate School CrowdAnalyser
PI of the Heidelberg Graduate School on mathematical and computational methods for the Sciences: HGS MathComp (DFG). http://www.mathcomp.uni-heidelberg.de/
etc.

Best paper award: Resch, B.; Zipf, A.; Breuss-Schneeweis, P.; E. Beniat and Boher, M. (2012): Live Cities and Urban Services - A Multi-dimensional Stress Field between Technology, Innovation and Society. The Fourth International Conference on Advanced Geographic Information Systems, Applications and Services. GEOProcessing 2012. Valencia, Spain.
Best paper award: Walenciak, G., Stollberg, B., Neubauer, S. and Zipf, A. (2009): Extending Spatial Data Infrastructures 3D by Geoprocessing Functionality - 3D Simulations in Disaster Management and environmental Research. The International Conference on Advanced Geographic Information Systems & Web Services (GEOWS 2009). Cancun. Mexico.
First price of the VDV (Verband Deutscher Vermessungsingenieure, Association of German Surveyors) 2007 for the Diploma Thesis of Pascal Neis (Emergency Route Service based on the OpenLS Specifications)
Best Poster award at AGILE 2003. Zipf, A. and Merdes, M. (2003): Is Aspect-Oriented Programming a new paradigm for GIS development? - on the relationship of geoobjects, aspects and ontologies. Lyon. France. Association of Geograpic Information Laboratories in Europe.
3rd Price for Diploma Student Albrecht Weiser: Förderpreis Geoinformatik 2006 of Runder Tisch GIS e.V. in Munich (March 2006).
Grant by the European Science Foundation (ESF) for participating in the EURESCO conference on Geographical Domain and Geographical Information Systems - Modelling Wayfinding. Bad Herrenalb, Germany, 26 April - 1 May 2003.
Grant by the European Science Foundation (ESF) for participating in the EURESCO Geovisualisation Conference 2002: EuroConference on Methods to Define Geovisualisation Contents for Users Needs. 09 - 14 March 2002 Albufeira, Portugal
Grant by the European Science Foundation (ESF) for participating in the EURESCO conference on The Digital City - Socio-Economic Research and Geographic Information Systems - A Euroconference. Granada, Spain, 9 - 14 June 2001.
Grant by ESRI for participating in the First International Conference on Geographic Information Science - GIScience 2000, Savannah, Georgia, USA, October 28-31, 2000.
Grant by the European Science Foundation (ESF) for participating in the EURESCO Conference on Ontology and Epistemology for Spatial Data Standards - Geographical Domain and Geographical Information Systems. La Londe-les-Maures, France, 22-27.09.2000
ESRI-Grant for IEUC98, The International ESRI User Conference, San Diego, USA. 1998. (additional participation at SDH 98 - Spatial Data Handling 1998, Vancouver, Canada).
Erasmus grant for studying at the University of Manchester, UK. WS 1993/1994.

Interdiziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) der Universität Heidelberg
AGILE - Association of Geographic Information Laboratories in Europe
OGC - Open Geospatial Consortium
Gesellschaft für Geoinformatik
Member of the Extended Board of Directors of the Interdisciplinary Center for Scientific Computing (IWR)
Funding Member of the Heidelberg Center for the Environment (HCE)
ISPRS Working Group WG IV/8 Spatial Data Integration for Emergency Services. International Society for Photogrammetry and Remote Sensing.
Verband der Geographen an Deutschen Hochschulen (VGDH)
Arbeitskreis GIS der Deutschen Gesellschaft für Geographie (AK GIS, DGfG)
Kommission Geoinformation und Visualisierung der ISPRS TC WG IV/5, Working group on Web-based Geoinformation Services and Applications
GI Fachgruppe Mobilität und Mobile Informationssysteme, der Gesellschaft für Informatik (GI).
Deutscher Hochschulverband (DHV)
Heidelberger Geographische Gesellschaft (HGG)

this is not complete / not up2date
Scientific Commitee: 6th Digital Earth Summit 2016. Bejing.
Program Committee: 3D GeoInfo 2009 - 4th International Workshop on 3D Geo-Information. Ghent, Belgium.
Scientific Comittee. ISPRS-workshop on Quality, scale and analysis aspects of urban city models. (International Society for Photogrammetry and Remote Sensing). Lund, Sweden, 3-4.12.2009.
ISCRAM 2009, 6th International Conference on Information Systems for Crisis Response and Management, Track Geo-information support, Göteborg, Sweden.
Deegree Day 2009. Bonn. Forchungszentrum Cesar. inkl. Workshop OpenStreetMap im Rheinland
Programm Committee: 2009 International Workshop on Theory and Applications Frontier of Location Based Services in cooperation with the The 3rd International Conference on Multimedia and Ubiquitous Engineering (MUE09) Qingdao, China.
Programm Committee: 9th International Symposium on Web and Wireless GIS, W2GIS. Maynooth, Ireland.
Lokale Organisation: 6. Fachgespräch Ortsbezogene Dienste. Universität Bonn. September 2009.
Program Committee: Geoinformatik 2009, Osnabrück.
Program Committee: LocWeb 2009 - Second International Workshop on Location and the Web in Conjunction with CHI 2009, Boston. USA.
Programm Committee: 8th International Workshop on Web and Wireless Geographical Information Systems (W2GIS 2008). 11.-12.12.2008. Shanghai. China.
Scientific Committee: joint Conference on Information Systems for Crisis Management 2008: 3rd International China Workshop on Information Systems for Crisis Response and Management (ISCRAM-CHINA) and the 4th International Symposium on Geo-Information for Disaster Management (Gi4DM). Harbin. China.
Scientific Committee: 5th Symposium on Location Based Services & TeleCartography 2008. Salzburg, Austria 26-28. November 2008.
Scientific Committee: First International Workshop on Trends in Pervasive and Ubiquitous Geotechnology and Geoinformation Workshop at the GIScience conference, September 2008, Park City, Utah, USA
Programm Committee: IADIS Wireless Applications and Computing 2008 (WAC 2008) Conference. July 2008. Amsterdam, The Netherlands.
Scientific Committee: 3D Geoinfo 2007. The Second International Workshop on 3D Modelling. Delft, The Netherlands. 12-14 December, 2007
Programm Committee: W2GIS'07 - 7th International Workshop on Web and Wireless GIS. November 28-29, 2007 in Cardiff, UK (hosted by the University of Glamorgan).
Programm Committee: GI-Forum. 2007. 2008. 2009. Salzburg. Austria 2009.
Programm Committee: ISCRAM 2008 Session TECH-03 Process- and Geo-aware Systems for Crisis Management
Programm Committee: UMICS '07,the 5th International Workshop on Ubiquitous Mobile Information and Collaboration Systems. co-located with CAiSE '07 in Trondheim, Norway, June 11-12, 2007.
Programm Committee: WAC 2007. IADIS International Conference Wireless Applications and Computing 2007. Lisbon, Portugal.
Programm Committee:MDSGEO'06 - 1st International Workshop on Modern Decision Support in Geographical Domains: Models, Methods, and Tools September, 2-3, 2006 - Thessaloniki, Greece. to be held in conjunction with the 10th East-European Conference on Advances in Databases and Information Systems ADBIS'2006
Programm Committee: UMICS '06, the 4th International Workshop on Ubiquitous Mobile Information and Communication Systems, co-located with CAiSE in Luxembourg, June 5-6, 2006.
Programm Committee: 6th International Workshop on Web and Wireless GIS (W2GIS'06). December 4-5, 2006. Hong Kong. China.
Workshop Organizer: UbiGIS 2006 - Second International Workshop on Ubiquitous GI Services. In conjunction with GISCience - International Conference on Geographic Information Science - Münster, Germany. September 2006.
Workshop Organizer: Mobile Maps 2005. 19. September 2005.
Programm Committee: deegree day. 2006, 2007. 2008. Bonn. Germany. June 2006, 2007. 2008.
Programm Committee: 1st International Workshop on Web Portal-based Solutions for Tourism - IWWPST05 Focus: Decision Support Systems. November 8 and 9, 2005 Tampere, Finland.
International Review Committee: Spatial Cognition 2004 Frauenchiemsee Island, Bavaria, Germany from 11-13 October 2004. Organizer: The Transregional Collaborative Research Center SFB/TR 8 Spatial Cognition.
Scientific Review Committe: IADIS Cognitive Performance Support (CPS) Conference within the IADIS Virtual Multi Conference on Computer Science and Information Systems (MCCSIS) conference.
Program Chair and Organizer: UbiGIS 2004. First International Workshop on Ubiquitous Geographic Information Services. (Topic: The relationship of GIS and Ubiquitous Computing). In conjunction with: Geoinformatics 2004 . 12th International Conference on Geoinformatics ; Geospatial Information Research: Bridging the Pacific and Atlantic. 7 -9 June 2004, Gvle, Sweden.
Program Committe: AGIT, Salzburg, Austria; since 2003.
Workshop Organizer: Alexander Zipf (FH Mainz) and Liqiu Meng (TU Munich): Design kartenbasierter mobiler Dienste. (Call for papers) Workshop auf der Konferenz. Mensch und Computer - Interaktion in Bewegung. Stuttgart. Germany. 2003.
Program Committe: Geoinformatics 2004. 12th International Conference on Geoinformatics ; Geospatial Information Research: Bridging the Pacific and Atlantic. 7 -9 June 2004, Gvle, Sweden.
Program Committe: Münsteraner GI-Tage 2004 Schwerpunkt: GI & Mobilitt Von der Forschung zur praktischen Anwendung
Scientific Committee: IT Conference. 2007. Malaka. Malaysia.
Program and Organizing Committee: GIS Day 2003. Heidelberg. 18. Nov. 2003.
Program and Organizing Committe: AGIT 2002, Schwerpunktthema: Geoinformation Mobil, Salzburg, Austria, 3. - 5. 07.2002.
Program Committe: AIMS 2002 - Artificial Intelligence in Mobile Systems, Lyon, France, July, 22 2002, in conjunction with: ECAI 2002 (European Conference on Artificial Intelligence).
Program and Organizing Committee: GIS Day 2002. Heidelberg. 20. Nov. 2002.
Virtual Worlds in Realistic Visualization. Deep Map Workshop, EML, Heidelberg. 09. December 1999. (Together with V. Coors, FhG IGD