Dr.-Ing. Jan Oliver Wallgrün

Privacy Policy

This privacy policy declaration is meant to be as simple as possible but still complete in clarifying the type, scope and purpose of the processing of personal data on this website (jan-oliver-wallgruen.info). In summary, I am not trying to collect any data about you on this site, and all personal data is exclusively handled in compliance with the relevant data protection regulations.

1. Responsible person

Dr.-Ing. Jan Oliver Wallgrün
Helgolandring 10
22926 Ahrensburg
Germany
info[at]jan-oliver-wallgruen.info

2. Data collection & processing on this site

I have no interest in collecting or processing any personal data from you via this website, and the website has been set up accordingly. In particular, this website ...
- does not use cookies,
- does not use retargeting pixels, social media buttons, web fonts (like Google Fonts), or similar tracking and analytics tools,
- does not use contact forms,
- does not use embedded 3rd party content or load content from CDNs (all code and style files required by the site are hosted locally on my web server).

To make sure that the data sent between your internet browser and the web server that is hosting the website is protected from third parties, the web server will only accept encrypted connections (see section on SSL Encryption below).

When connecting to this website, it is technically necessary that data is transmitted to the web server via your browser. The following information may be included in what your browser sends and will be logged for evaluating system security & stability and other administrative purposes:
- name of the requested page/file
- access status/http status code
- date and time of the request
- amount of data transmitted

The following information may be included in what your browser sends but will not be logged; logging of this information by the web server has been explicitly disabled:
- IP address
- time zone difference
- website from which the request comes
- browser
- operating system and its interface
- language and version of the browser software

As a result of not logging the items from the second group above, in particular your IP address, the logged items from the first group cannot be traced back to you. It is not possible to draw conclusions about individual persons on the basis of the logged data.

3. Hosting

In the interest of guaranteeing a reliable service, this website is hosted on a web server running on a EC2 virtual machine with encrypted storage that is part of Amazon Web Services (Amazon Web Services, Inc., 410 Terry Avenue North, Seattle WA 98109, USA, represented by Amazon Web Services EMEA SARL, 38 Avenue John F. Kennedy, L-1855 Luxembourg), hereinafter referred to as AWS.

AWS acts as a processor for me and is obliged to process the data in a data protection compliant manner according to the instructions in my data processing agreement with AWS. For details, please see: https://d1.awsstatic.com/legal/aws-gdpr/AWS_GDPR_DPA.pdf

The virtual machine has been set up such that when you visit our website, the processing of your data as described in Section 2 above takes place on AWS servers located in the Frankfurt (Germany) region. However, it should be noted that as a US company, AWS may also be obliged to transfer data stored on this virtual machine to the US security authorities. I cannot guarantee that data stored on the virtual machine will not be processed outside of the EU but as laid out in Section 2, the data stored on the machine does not include personal information about you.

Further information is available in the AWS privacy policy statement:
https://aws.amazon.com/privacy/

4. SSL encryption

To protect the security of your data during transmission, this site uses SSL encryption. The SSL certificate is provided by Let’s Encrypt. The privacy policy of Let’s Encrypt can be found here: https://letsencrypt.org/privacy/. You can recognise an encrypted connection by the fact that the address line of the browser changes from “http://” to “https://” and by the lock symbol next to the address. If SSL encryption is activated, the data you transmit cannot be read by third parties. When contacted via an unencrypted “http://” connection, the server will try to switch over to an encrypted “https://” connection and reject the connection if this is not possible.

5. Changes to the privacy policy

The Privacy Policy will always be located at https://jan-oliver-wallgruen.info/index.html#privacy. It is possible for this Privacy Policy to be amended in the future, therefore it is recommended to review this policy regularly.

6. Email contact

If you have any questions about this privacy policy, feel free to send me an email. If contacted via e-mail, I will store and use the information that you provide for the purpose of processing your request and for possible follow-up questions. I will not sell, trade, or otherwise provide your contact information to anyone unless requested by law enforcement.

Impressum - Information according to § 5 TMG

1. Provider of this website (jan-oliver-wallgruen.info):

Dr.-Ing. Jan Oliver Wallgrün

Helgolandring 10
22926 Ahrensburg
Germany

Phone +49 (0)4102 2188176
Email info[at]jan-oliver-wallgruen.info

USt-IdNr. DE296314006

2. Responsible for the content of this website according to § 55 Abs. 2 RStV:

Dr.-Ing. Jan Oliver Wallgrün

3. Copyrights and ancillary copyrights:

The content published on this website is subject to German copyright and ancillary copyright law. Any use not permitted by German copyright and ancillary copyright law requires the written consent of the provider or respective rights holder. In particular, this applies to copying, editing, translating, storage, processing or reproduction of contents in databases or other electronic media or systems. Contents and rights of third parties are marked as such. Unauthorized duplication of transmission of individual contents or complete pages is not permitted and punishable by law. The representation of this website in external frames is only permitted with written consent.

4. Disclaimer / Liability exclusion:

4.1 Contents

The contents of this website were created with the greatest possible care. However, the provider of this website does not accept any responsibilities for the accuracy, completeness, and timeliness of the displayed content. The use of the content of this website takes place at one's own risk. Use of this website does not lead to a contractual relationship between the user and the provider, and the provider does not have legal obligations in this respect.

4.2 External links

This website contains links to third party websites. The provider has no influence on the current and future content of these externally linked pages and, hence, does not take any responsabilities for these contents. These externally linked websites are subject to the liability of the respective providers. The inclusion of these externally linked websites does not mean that the provider adopts the content of these websites as their own. When these external links were first created, the provider checked the content of the linked pages for possible legal violations. No legal violations were found at that time. The provider cannot be expected to constantly monitor these externally linked websites without concrete evidence of legal violations. However, the provider will immediately remove the external links if informed about law violations by the linked website.

4.3 Protection of data privacy

Please see the Privacy Policy of this website.

Dispute resolution

Under applicable law, I am obliged to inform users/consumers about the existence of the European Online Dispute Resolution Platform, which can be used to resolve disputes without having to go to court. The European Commission is responsible for setting up the platform. The European Online Dispute Resolution Platform can be found here: https://ec.europa.eu/consumers/odr/.
Our e-mail is: info[at]jan-oliver-wallgruen.info

Below you can find a list of my publications sorted into categories:

• Journal articles
• Books (monographs and edited books) and edited special issues
• Fully refereed conference and workshop articles
• Other publications

You may also want to check out my publications on Google Scholar and ResearchGate.

Journal articles

Wallgrün, J. O., Chang, J. S. K., Zhao, J., Trenham, P., Sajjadi, P., Simpson, M., & Klippel, A. (2022). Place-based education through immersive virtual experiences — preparing biology students for the field. Journal of Biological Education. https://doi.org/10.1080/00219266.2022.2067580

Zhao, J., Wallgrün, J. O., Sajjadi, P., LaFemina, P., Lim, K. Y. T., Springer, J. P., & Klippel, A. (2022). Longitudinal Effects in the Effectiveness of Educational Virtual Field Trips. Journal of Educational Computing Research, 60(4), 1008-1034. https://doi.org/10.1177/07356331211062925

Jiayan Zhao, Xiaochuan Ma, Mark Simpson, Pejman Sajjadi, Jan Oliver Wallgrün, and Alexander Klippel (2022). Reference frames and geographic scale: Understanding their relationship in environmental learning. Cartography and Geographic Information Science, 49:1, 70-84, DOI: 10.1080/15230406.2021.1942219

Bursztyn, N., Sajjadi, P., Riegel, H., Huang, J., Wallgrün, J. O., Zhao, J., Masters, B., & Klippel, A. (2022). Virtual strike and dip - Advancing inclusive and accessible field geology. Geoscience Communication, 5(1), 29-53. https://doi.org/10.5194/gc-5-29-2022

Bagher, M. M., Sajjadi, P., Wallgrün, J. O., La Femina, P. C., & Klippel, A. (2021). Move The Object or Move The User: The Role of Interaction Techniques on Embodied Learning in VR. Front. Virtual Real. 2: 695312

Alexander Klippel, Jiayan Zhao, Danielle Oprean, Jan Oliver Wallgrün, Chris Stubbs, Peter Femina, and Kathy Jackson. The value of being there: toward a science of immersive virtual field trips. Virtual Reality, 24, 12 2020.

Jiayan Zhao, Mark Simpson, Jan Oliver Wallgrün, Pejman Sajjadi, and Alexander Klippel. Exploring the effects of geographic scale on spatial learning. Cognitive Research: Principles and Implications, 5, 12 2020.

Alexander Klippel, Jiayan Zhao, Kathy Jackson, Peter Femina, Chris Stubbs, Ryan Wetzel, Jordan Blair, Jan Oliver Wallgrün, and Danielle Oprean. Transforming earth science education through immersive experiences: Delivering on a long held promise. Journal of Educational Computing Research, 57:073563311985402, 06 2019.

Jiayan Zhao, Jan Oliver Wallgrün, Peter C. LaFemina, Jim Normandeau, and Alexander Klippel. Harnessing the power of immersive virtual reality - visualization and analysis of 3d earth science data sets. Geo-spatial Information Science, 22(4):237–250, 2019.

Morteza Karimzadeh, Scott Pezanowski, Alan MacEachren, and Jan Oliver Wallgrün. Geotxt: A scalable geoparsing system for unstructured text geolocation: Geotxt: A scalable geoparsing system. Transactions in GIS, 23, 01 2019.

Jiawei Huang, Mahda M. Bagher, Heather Dohn Ross, Nathan Piekielek, Jan Oliver Wallgrün, Jiayan Zhao, and Alexander Klippel. From archive, to access, to experience––historical documents as a basis for immersive experiences. Journal of Map & Geography Libraries, 14(1):40–63, 2018.

J. O. Wallgrün, M. Karimzadeh, S. Pezanowski, and MacEachren A. M. Geocorpora: building a corpus to test and train microblog geoparsers. International Journal of Geographical Information Science, 32(1):1–29, 2018.

M. Simpson, K.-F. Richter, J. O. Wallgrün, and A. Klippel. Quantifying space, understanding minds: A visual summary approach. Journal of Spatial Information Science, 14:95–136, 2017.

A. Klippel, J. O. Wallgrün, J. Yang, and K. Sparks. Intuitive direction concepts. The Baltik Yearbook of Logic, Cognition, and Communication, 10, 2015.

Mehul Bhatt and Jan Oliver Wallgrün. Geospatial narratives and their spatio-temporal dynamics: Commonsense reasoning for high-level analyses in geographic information systems. ISPRS International Journal of Geo-Information, 3(1):166–205, 2014.

J. O. Wallgrün, J. Yang, and A. Klippel. Cognitive evaluation of spatial formalisms: Intuitive granularities of overlap relations. International Journal of Cognitive Informatics and Natural Intelligence, 8(1):1–17, 2014.

Reinhard Moratz and Jan Oliver Wallgrün. Spatial reasoning with augmented points: Extending cardinal directions with local distances. Journal of Spatial Information Science (JOSIS), (5):1-30, 2012.

R. A. Bianchetti, J. O. Wallgrün, J. Yang, J. I. Blanford, A. C. Robinson, and A. Klippel. Free classification of canadian and american emergency management map symbol standards. The Cartographic Journal, 49(4):350-360, 2012.

Alexander Klippel, Jinlong Yang, Jan Oliver Wallgrün, and Rui Li Frank Dylla. Assessing similarities of qualitative spatio-temporal relations. In Cognitive Processing, 13:209-214, 2012.

Jan Oliver Wallgrün. Qualitative spatial reasoning for topological map learning. Spatial Cognition and Computation - An Interdisciplinary Journal, 10(4):207-246, 2010.

Jan Oliver Wallgrün. Voronoi graph matching for robot localization and mapping. Transactions on Computational Science, 9:76-108, 2010.

Frank Dylla and Jan Oliver Wallgrün. Qualitative spatial reasoning with conceptual neighborhoods for agent control. Journal of Intelligent and Robotic Systems, 48(1):55-78, 2007.

Diedrich Wolter, Frank Dylla, Stefan Wölfl, Jan Oliver Wallgrün, Lutz Frommberger, Bernhard Nebel, and Christian Freksa. SailAway: Spatial cognition in sea navigation. Künstliche Intelligenz, 1:28-30, 2008.

Books (monographs and edited books) and edited special issues

Arzu Çöltekin, Danielle Oprean, Jan Oliver Wallgrün, and Alexander Klippel (editors). International journal of digital earth, volume 12, issue 2 (2019). Special issue on human-centered virtual and augmented reality geovisualization environments, 2019.

Jia Wang, Klaus Broelemann, Malumbo Chipofya, Angela Schwering, and Jan Oliver Wallgrün, editors. Proceedings of the COSIT 2011 Workshop on An Interdisciplinary Approach to Understanding and Processing Sketch Maps. Akademische Verlagsgesellschaft Aka GmbH (IOS Press), Heidelberg, Germany, 2011.

Jan Oliver Wallgrün. Hierarchical Voronoi Graphs - Spatial Representation and Reasoning for Mobile Robots. Springer, 2010.

Jan Oliver Wallgrün and Anna-Katharina Lautenschütz, editors. Proceedings of the GIScience 2010 Doctoral Colloquium, volume 38 of ifgiPrints. Akademische Verlagsgesellschaft Aka GmbH (IOS Press), Heidelberg, Germany, 2010.

Fully refereed conference and workshop articles

Zhao, J., Simpson, M., Sajjadi, P., Wallgrün, J. O., Li, P., Bagher, M. M., … & Klippel, A. (2021, October). Crowdxr-pitfalls and potentials of experiments with remote participants. In 2021 IEEE International Symposium on Mixed and Augmented Reality (ISMAR) (pp. 450-459). IEEE.

Alexander Klippel, Pejman Sajjadi, Jiayan Zhao, Jan Oliver Wallgrün, Jiawei Huang, and Mahda Bagher. Embodied digital twins for environmental applications. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, V-4-2021:193–200, 06 2021.

Pejman Sajjadi, Jiayan Zhao, Jan Oliver Wallgrün, Peter Femina, and Alexander Klippel. Influence of hmd type and spatial ability on experiences and learning in place-based education. In 2021 7th International Conference of the Immersive Learning Research Network (iLRN), pages 1–8, 05 2021.

Jan Oliver Wallgrün, Eric Knapp, Alan Taylor, Alexander Klippel, Jiayan Zhao, and Pejman Sajjadi. Place-based learning through a proxy - variations in the perceived benefits of a virtual tour. In 2021 7th International Conference of the Immersive Learning Research Network (iLRN), pages 1–8, 05 2021.

Pejman Sajjadi, Jiayan Zhao, Jan Oliver Wallgrün, Peter Femina, and Alexander Klippel. Hmd type and spatial ability: Effects on the experiences and learning of students in immersive virtual field trips. In 2021 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), pages 546–547, 03 2021.

Natalie Bursztyn, Hannah Riegel, Pejman Sajjadi, Bart Masters, Jiayan Zhao, Jiawei Huang, Mahda Bagher, Jan Oliver Wallgrün, and Alexander Klippel. Fostering geological thinking through virtual strike and dip measurements. In 2021 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), pages 303–308, 03 2021.

Pejman Sajjadi, Jiayan Zhao, Jan O. Wallgrün, Tanya Furman, Peter C. La Femina, Alex Fatemi, Zachary E. Zidik, and Alexander Klippel. The effect of virtual agent gender and embodiment on the experiences and performance of students in virtual field trips. In 2020 IEEE International Conference on Teaching, Assessment, and Learning for Engineering (TALE), pages 221–228, 2020.

Jan Oliver Wallgrün, Mahda Bagher, Pejman Sajjadi, and Alexander Klippel. A comparison of visual attention guiding approaches for 360° image-based vr tours. In 2020 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 05 2020.

Jiayan Zhao, Peter LaFemina, Julia Carr, Pejman Sajjadi, Jan Oliver Wallgrün, and Alexander Klippel. Learning in the field: Comparison of desktop, immersive virtual reality, and actual field trips for place-based stem education. In 2020 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 03 2020.

Alexander Klippel, Jiayan Zhao, Pejman Sajjadi, Jan Oliver Wallgrün, Mahda Bagher, and Danielle Oprean. Immersive place-based learning – an extended research framework. In 2020 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), pages 449–454, 03 2020.

Jiayan Zhao, Mark Simpson, Jan Oliver Wallgrün, Pejman Sajjadi, and Alexander Klippel. Extended realities – how changing scale affects spatial learning. In 2020 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), pages 601–602, 03 2020.

Alexander Klippel, Jiayan Zhao, Jan Oliver Wallgrün, Pejman Sajjadi, Mahda Bagher, Peter Femina, Tanya Furman, and Danielle Oprean. From immersive vr to desktop vr and back: Visions for remote learning in the geosciences. In GSA 2020 Connects Online, 01 2020.

Jan Oliver Wallgrün, Jack Chang, Jiayan Zhao, Pejman Sajjadi, Danielle Oprean, Thomas Murphy, Jennifer Baka, and Alexander Klippel. For the Many, Not the One: Designing Low-Cost Joint VR Experiences for Place-Based Learning, pages 126–148. Springer, 10 2019.

Alexander Klippel, Danielle Oprean, Jiayan Zhao, Jan Oliver Wallgrün, Peter LaFemina, Kathy Jackson, and Elise Gowen. Immersive learning in the wild: A progress report. In Dennis Beck, Anasol Peña-Rios, Todd Ogle, Daphne Economou, Markos Mentzelopoulos, Leonel Morgado, Christian Eckhardt, Johanna Pirker, Roxane Koitz-Hristov, Jonathon Richter, Christian Gütl, and Michael Gardner, editors, Immersive Learning Research Network, pages 3–15, Cham, 2019. Springer International Publishing.

Jan Oliver Wallgrün, Arif Masrur, Jiayan Zhao, Alan Taylor, Eric Knapp, Jack Chang, and Alexander Klippel. Low-cost vr applications to experience real word places anytime, anywhere, and with anyone. In 2019 IEEE 5th Workshop on Everyday Virtual Reality (WEVR), pages 1–6, 2019.

Alexander Klippel, Jan Oliver Wallgrün, Arif Masrur, Jiayan Zhao, and Peter LaFemina. Warping space and time - xr reviving educational tools of the 19th century. In 2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), pages 1022–1023, 2019.

Alexander Klippel, Jiayan Zhao, Danielle Oprean, Jan Oliver Wallgrün, and Jack Shen-Kuen Chang. Research framework for immersive virtual field trips. In 2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), pages 1612–1617, 2019.

D. Oprean, D. Verniz, J. Zhao, J. O. Wallgrün, J. Duarte, and A. Klippel. Remote studio site experiences: Investigating the potential to develop the immersive site visit. In T. Fukada, W. Huang, P. Janssen, K. Crolla, and S. Alhadidi, editors, Learning, Adapting and Prototyping – Proceedings of the 23rd CAADRIA Conference – Volume 1, pages 421–430. Hong Kong: The Association for Computer-Aided Architectural Design Research in Asia, 2018.

D. Oprean, J. O. Wallgrün, J. Duarte, D. Pereira, J. Zhao, and A. Klippel. Developing and evaluating vr field trips. In P. Fogliaroni, A. Ballatore, and E. Clementini, editors, Proceedings of Workshops and Posters at 13th International Conference on Spatial Information Theory (COSIT 2017), pages 105–110. Berlin: Springer, 2017.

J. O. Wallgrün, J. Huang, J. Zhao, A. Masrur, and A. Klippel. A framework for low-cost multi-platform vr and ar site experiences. In The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLII-2/W8, pages 263–270, 2017.

A. Masrur, J. Zhao, J. O. Wallgrün, P. LaFemina, and A. Klippel. Immersive applications for informal and interactive learning for earth sciences. In Workshop on Immersive Analytics (IA), at IEEE VIS, Phoenix, Arizona, USA, 2017.

J. O. Wallgrün, J. Huang, J. Zhao, C. Ebert, P. Roddy, T. Murtha, J. Awe, and A. Klippel. Immersive technologies and experiences for simpsarchaeological site exploration and analysis. In P. Fogliaroni, A. Ballatore, and E. Clementini, editors, Proceedings of Workshops and Posters at 13th International Conference on Spatial Information Theory (COSIT 2017), pages 307–314. Berlin: Springer, 2017.

J. Zhao, P. Lafemina, J. O. Wallgrün, D. Oprean, and A. Klippel. Ivr for the geosciences. In 2017 IEEE Virtual Reality Workshop on K-12 Embodied Learning through Virtual & Augmented Reality (KELVAR), 2017.

M. Simpson, J. O. Wallgrün, A. Klippel, L. Yang, G. Garner, K. Keller, and S. Bansal. Immersive analytics for multi-objective dynamic integrated climate-economy (dice) models. In M. Hancock, N. Marquardt, J. Schöning, and M. Tory, editors, Proceedings of the 2016 ACM Companion on Interactive Surfaces and Spaces – ISS Companion ’16, pages 99–105. New York, New York, USA: ACM Press, 2016.

A. Klippel, D. M. Mark, J. O. Wallgrün, and D. Stea. Conceptualizing landscapes: A comparative study of landscape categories with navajo and english-speaking participants. In S. I. Fabrikant, M. Raubal, M. Bertolotto, C. Davies, S. M. Freundschuh, and S. Bell, editors, Proceedings, Conference on Spatial Information Theory (COSIT 2015). Berlin: Springer, 2015.

K. Sparks, A. Klippel, J. O. Wallgrün, and D. M. Mark. Citizen science land cover classification based on ground and aerial imagery. In S. I. Fabrikant, M. Raubal, M. Bertolotto, C. Davies, S. M. Freundschuh, and S. Bell, editors, Proceedings, Conference on Spatial Information Theory (COSIT 2015). Berlin: Springer., 2015.

A. Klippel, K. Sparks, and J. O. Wallgrün. Pitfalls and potentials of crowd science: A meta analysis of contextual influences. In ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences.

K. A. Sparks, A. Klippel, J. O. Wallgrün, and D. Mark. Crowdsourcing landscape perceptions to validate land cover classifications. In O. Ahlqvist, K. Janowicz, D. Varanka, and S. Fritz, editors, and Use and Land Cover Semantics – Principles, Best Practices and Prospects. CRC Press / Taylor & Francis, 2015.

J. O. Wallgrün, A. Klippel, and T. Baldwin. Towards a comprehensive model for interpreting spatial relational expressions. In International Workshop on Geographic Information Retrieval (in conjunction with ACM SIGSPATIAL), 2014.

A. Klippel, J. O. Wallgrün, V. Mast, T. Tenbrink, and D. Wolter. The catframework for spatial semantics. In 10th International Symposium of Cognition, Logic and Communication, 2014.

V. Mast, D. Wolter, A. Klippel, J. O. Wallgrün, and T. Tenbrink. Boundaries and prototypes in categorizing direction. In C. Freksa, B. Nebel, M. Hegarty, and T. Barkowsky, editors, Proceedings of the Spatial Cognition Conference 2014. Berlin: Springer, 2014.

D. M. Mark, A. Klippel, and J. O. Wallgrün. An upper-level taxonomy for the common-sense geographic domain. In GIScience (extended abstracts), 2014. J. O. Wallgrün, A. Klippel, and D. M. Mark. A new approach to cluster validation in human studies on (geo)spatial concepts. In GIScience (extended abstracts), 2014.

Jan Oliver Wallgrün, Frank Hardisty, Alan M. MacEachren, Morteza Karimzadeh, Yiting Ju, and Scott Pezanowski. Construction and first analysis of a corpus for the evaluation and training of microblog/twitter geoparsers. In Proceedings of the 8th Workshop on Geographic Information Retrieval, GIR ’14, pages 4:1–4:8, New York, NY, USA, 2014. ACM.

K. Sparks, A. Klippel, J. O. Wallgrün, and D. M. Mark. Crowdsourcing landscape perceptions to validate land cover classifications. In GIScience (extended abstracts)., 2014.

Morteza Karimzadeh, Wenyi Huang, Siddhartha Banerjee, Jan Oliver Wallgrün, Frank Hardisty, Scott Pezanowski, Prasenjit Mitra, and Alan M. MacEachren. Geotxt: A web API to leverage place references in text. In Ross Purves and Chris Jones, editors, Proceedings ACM Sigspatial GIS 2013 Workshop on Geographic Information Retrieval (GIR), pages 72–73, New York, NY, USA, 2013.

Mehul Bhatt, Jan Oliver Wallgrün, and Christophe Claramunt. Commonsense cognition of geospatial dynamics: Towards bridging the gap between geography, artificial intelligence, and cognitive science. In Proceedings COSIT 2013 workshop "Spatio-temporal theories and research for environmental, urban and social sciences: where do we stand?", 2013.

Alexander Klippel, Jan Oliver Wallgrün, Jinlong Yang, Jennifer S. Mason, Eun-Kyeong Kim, and David M. Mark. Fundamental cognitive concepts of space (and time): Using cross-linguistic, crowdsourced data to cognitively calibrate modes of overlap. In Thora Tenbrink, John G. Stell, Antony Galton, and Zena Wood, editors, COSIT 2013, volume 8116 of Lecture Notes in Computer Science, pages 377-396. Springer, 2013.

Jan Oliver Wallgrün, Jinlong Yang, and Alexander Klippel. Investigating intuitive granularities of overlap relations. In 12th IEEE International Conference on Cognitive Informatics and Cognitive Computing, 2013.

Jan Oliver Wallgrün, Frank Dylla, Alexander Klippel, and Jinlong Yang. Understanding human spatial conceptualizations to improve applications of qualitative spatial calculi. In Proceedings of the International Workshop on Qualitative Reasoning (QR) 2013, 2013.

Jan Oliver Wallgrün. Exploiting qualitative spatial reasoning for topological adjustment of spatial data. In Isabel F. Cruz, Craig Knoblock, Peer Kröger, Egemen Tanin, and Peter Widmayer, editors, SIGSPATIAL 2012 International Conference on Advances in Geographic Information Systems (formerly known as GIS), SIGSPATIAL'12, pages 229-238, 2012.

Jan Oliver Wallgrün. Topological adjustment of polygonal data. In Sabine Timpf and Patrick Laube, editors, Advances in Spatial Data Handling, pages 193-208. Springer, 2012.

A. Klippel, J. Yang, R. Li, and J. O. Wallgrün. Evaluating the cognitive adequacy of the DLine-region calculus. In Sabine Timpf Sabine Timpf and Patrick Laube, editors, Advances in Spatial Data Handling, pages 91-106. Springer, 2012.

Jan Oliver Wallgrün, Jinlong Yang, Alexander Klippel, and Frank Dylla. Investigations into the cognitive conceptualization and similarity assessment of spatial scenes. In Ningchuan Xiao, Mei-Po Kwan, Michael F. Goodchild, and Shashi Shekhar, editors, Geographic Information Science - 7th International Conference, GIScience 2012, volume 7478 of Lecture Notes in Computer Science, pages 212 - 225. Springer, 2012.

Alexander Klippel, Jan Oliver Wallgrün, Jinlong Yang, Rui Li, and Frank Dylla. Formally grounding spatio-temporal thinking. In C. Stachniss, K. Schill, and D. H. Uttal, editors, Spatial Cognition 2012, pages 242-261. Berlin: Springer, 2012.

Jan Oliver Wallgrün and Mehul Bhatt. An architecture for semantic analysis in geospatial dynamics. In International Semantic Web Conference (ISWC-11) - Proceedings of the Workshop: Terra Cognita, CEUR Workshop Proceedings, 2011.

Paolo Fogliaroni, Giorgio de Felice, Falko Schmid, and Jan Oliver Wallgrün. Managing qualitative spatial information to support query-by-sketch. In Jia Wang, Klaus Broelemann, Malumbo Chipofya, Angela Schwering, and Jan Oliver Wallgrün, editors, Proceedings of the COSIT 2011 Workshop on An Interdisciplinary Approach to Understanding and Processing Sketch Maps, volume 42 of ifgiPrints. Akademische Verlagsgesellschaft Aka GmbH (IOS Press), Heidelberg, Germany, 2011.

Diedrich Wolter, Kai-Florian Richter, and Jan Oliver Wallgrün. Using SparQ for matching sketch maps. In Jia Wang, Klaus Broelemann, Malumbo Chipofya, Angela Schwering, and Jan Oliver Wallgrün, editors, Proceedings of the COSIT 2011 Workshop on An Interdisciplinary Approach to Understanding and Processing Sketch Maps, volume 42 of ifgiPrints. Akademische Verlagsgesellschaft Aka GmbH (IOS Press), Heidelberg, Germany, 2011.

Giorgio de Felice, Paolo Fogliaroni, and Jan Oliver Wallgrün. A hybrid geometric-qualitative spatial reasoning system and its application in GIS. In Max Egenhofer, Nick Guidice, Reinhard Moratz, and Mike Worboys, editors, Proceedings of the 10th International Conference on Spatial Information Theory, 2011.

Jan Oliver Wallgrün, Diedrich Wolter, and Kai-Florian Richter. Qualitative matching of spatial information. In Amr El Abbadi, Diyakant Agrawal, Mohamed Mokbel, and Pusheng Zhang, editors, Proceedings of the 18th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS 2010), pages 300-309, 2010.

Jan Oliver Wallgrün and Frank Dylla. Spatial data integration with qualitative integrity constraints. In Ross Purves and Robert Weibel, editors, Online Proceedings of the 6th International Conference on Geographic Information Science (GIScience 2010), 2010.

Giorgio de Felice, Paolo Fogliaroni, and Jan Oliver Wallgrün. Qualitative reasoning with visibility information for environmental learning. In Ross Purves and Robert Weibel, editors, Online Proceedings of the 6th International Conference on Geographic Information Science (GIScience 2010), 2010.

Jan Oliver Wallgrün and Frank Dylla. Qualitative spatio-temporal data integration and conflict resolution. In Mehul Bhatt, Hans W. Guesgen, and Shyamanta M. Hazarika, editors, Proceedings of the ECAI 2010 Workshop on Spatio-Temporal Dynamics, pages 13-18, 2010.

Jan Oliver Wallgrün. Exploiting qualitative spatial constraints for multi-hypothesis topological map learning. In Kathleen Stewart Hornsby, Christophe Claramunt, Michel Denis, and Gérard Ligozat, editors, Spatial Information Theory, 9th International Conference, COSIT 2009, Aber Wrac'h, France, September 21-25, 2009 Proceedings, volume 5756 of Lecture Notes in Computer Science, pages 141-158. Springer-Verlag Berlin Heidelberg, 2009.

Jan Oliver Wallgrün. Matching annotated generalized voronoi graphs for autonomous robot localization and mapping. In François Anton and J. Andreas Bærentzen, editors, Proceedings of the 6th Annual International Symposium on Voronoi Diagrams in Science and Engineering. IEEE Computer Society, 2009.

Paolo Fogliaroni, Jan Oliver Wallgrün, Eliseo Clementini, Francesco Tarquini, and Diedrich Wolter. A qualitative approach to localization and navigation based on visibility information. In Kathleen Stewart Hornsby, Christophe Claramunt, Michel Denis, and Gérard Ligozat, editors, Spatial Information Theory, 9th International Conference, COSIT 2009, Aber Wrac'h, France, September 21-25, 2009 Proceedings, volume 5756 of Lecture Notes in Computer Science. Springer-Verlag Berlin Heidelberg, 2009.

Jan Oliver Wallgrün. Multi-hypothesis topological mapping using qualitative spatial reasoning. In Bernard Nebel and Stefan Wölfl, editors, Papers from the 2009 AAAI Spring Symposium Benchmarking of Qualitative Spatial and Temporal Reasoning Systems, number SS-09-02 in Technical Report, pages 35-40. AAAI Press; Menlo Park, CA, 2009.

Reinhard Moratz and Jan Oliver Wallgrün. Spatial reasoning about relative orientation and distance for robot exploration. In Werner Kuhn, Michael F. Worboys, and Sabine Timpf, editors, Spatial Information Theory: Foundations of Geographic Information Science. Conference on Spatial Information Theory (COSIT), LNCS, pages 61-74. Springer Heidelberg, 2003.

Jan Oliver Wallgrün, Lutz Frommberger, Diedrich Wolter, Frank Dylla, and Christian Freksa. Qualitative spatial representation and reasoning in the SparQ-toolbox. In Thomas Barkowsky, Markus Knauff, Gerard Ligozat, and Dan Montello, editors, Spatial Cognition V: Reasoning, Action, Interaction: International Conference Spatial Cognition 2006, volume 4387 of Lecture Notes in Computer Science, pages 39-58. Springer-Verlag Berlin Heidelberg, 2007.

Frank Dylla, Lutz Frommberger, Jan Oliver Wallgrün, Diedrich Wolter, Stefan Wölfl, and Berhard Nebel. Sailaway: Formalizing navigation rules. In Proceedings of the AISB'07 Artificial and Ambient Intelligence Symposium on Spatial Reasoning and Communication, 2007.

Frank Dylla and Jan Oliver Wallgrün. Qualitative spatial reasoning with conceptual neighborhoods for agent control. In International Symposium & Special Issue on Model-Based Reasoning in Engineering and Robotic Systems (Guangzhou, China), 2006.

Frank Dylla and Jan Oliver Wallgrün. On generalizing orientation information in OPRAm. In Proceedings of the 29th German conference on Artificial Intelligence (KI 2006), Lecture Notes in Artificial Intelligence, pages 274-288, Berlin, 2006. Springer.

Frank Dylla, Lutz Frommberger, Jan Oliver Wallgrün, and Diedrich Wolter. SparQ: A toolbox for qualitative spatial representation and reasoning. In Proceedings of the Workshop on Qualitative Constraint Calculi: Application and Integration (KI 2006), pages 79-90, 2006.

Jan Oliver Wallgrün. Autonomous construction of hierarchical Voronoi-based route graph representations. In Christian Freksa, Markus Knauff, Bernd Krieg-Brückner, Bernhard Nebel, and Thomas Barkowsky, editors, Spatial Cognition IV. Reasoning, Action, Interaction: International Conference Spatial Cognition 2004, volume 3343 of Lecture Notes in Artificial Intelligence, pages 413-433, Berlin, 2005. Springer.

Jan Oliver Wallgrün. Hierarchical Voronoi-based route graph representations for planning, spatial reasoning, and communication. In Patrick Doherty, editor, Proceedings of the 4th International Cognitive Robotics Workshop (CogRob-2004), 2004.

Reinhard Moratz and Jan Oliver Wallgrün. Propagation of distance and orientation intervals. In Proceedings of 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-03), pages 3245-3250, 2003.

Reinhard Moratz and Jan Oliver Wallgrün. Spatial reasoning about relative orientation and distance for robot exploration. In Werner Kuhn, Michael F. Worboys, and Sabine Timpf, editors, Spatial Information Theory: Foundations of Geographic Information Science. Conference on Spatial Information Theory (COSIT), LNCS, pages 61-74. Springer Heidelberg, 2003.

Book chapters

Jan Oliver Wallgrün. Mapping indoor environments with mobile robots. In Wolfgang Kresse and David M. Danko, editors, Springer Handbook of Geographic Information. Springer, 2012.

Diedrich Wolter and Jan Oliver Wallgrün. Qualitative spatial reasoning for applications: New challenges and the SparQ toolbox. In Shyamanta M. Hazarika, editor, Qualitative Spatio-Temporal Representation and Reasoning: Trends and Future Directions. IGI Global, 2012.

Other publications

Mehul Bhatt and Jan Oliver Wallgrün. Analytical intelligence for geospatial dynamics. 10th International Conference on Spatial Information Theory - extended abstract, poster, 2011.

Jan Oliver Wallgrün and Frank Dylla. A relation-based merging operator for qualitative spatial data integration and conflict resolution. Technical Report 022-06/2010, SFB/TR 8 Spatial Cognition; http://www.sfbtr8.uni-bremen.de/, 2010.

Paolo Fogliaroni, Giorgio de Felice, and Jan Oliver Wallgrün. A qualitative perspective on volunteered geographic information. In GIScience 2010 - Workshop on the Role of Volunteered Geographic Information in Advancing Science, 2010.

Jan Oliver Wallgrün. Hierarchical Route Graph Representations for mobile Robots Based on Generalized Voronoi Graphs. PhD thesis, University of Bremen, 2009.

Lutz Frommberger, Jae Hee Lee, Jan Oliver Wallgrün, and Frank Dylla. Composition in OPRAm. Technical Report 013-02/2007, SFB/TR 8 Spatial Cognition, Universität Bremen, 2007.

Jan Oliver Wallgrün, Lutz Frommberger, Frank Dylla, and Diedrich Wolter. SparQ user manual v0.6. Technical Report 007-07/2006, SFB/TR 8 Spatial Cognition, Universität Bremen, 2006.

Jan Oliver Wallgrün. Exploration und Pfadplanung für mobile Roboter basierend auf Generalisierten Voronoi-Graphen. Diplomarbeit, Fachbereich Informatik, Universität Hamburg, 2002.