Résumé of R.L.G. (Rob) Lemmens


Rob Lemmens graduated in 1989 at Delft University of Technology, Faculty of Geodesy with a specialization in mathematical geodesy and point positioning. After a research period during his military service at the National Aerospace Laboratory, he joined the Faculty of Geodesy on a research project on GPS in bathymetric applications. From 1994 till 1998 he worked at the University of Zambia as project consultant and lecturer in the field of GIS and land surveying and was responsible for the development of the computer infrastructure at the Department of Surveying. In 1998 Rob joined the Division of Spatial Information Theory and Applied Computer Science at ITC, where he developed and executed several courses on core GIS topics, GIS application development and Internet GIS. He has been on consultancy missions for projects on GIS and geo-spatial data infrastructures in Africa and Asia. Currently he is carrying out his PhD research on Distributed Interoperable Processing in GIS at the ITC's Department of Geo-information Processing.

Activities in education

Rob's main educational activities includes lecturing in:

  • ITC's core module on GIS (entrance course for all ITC students): GFM programme co-ordinator 2000,
  • GIS application development 2000, 2001,
  • Web technology for GIS and mapping: Elective and MSc course module co-ordinator resp. 1998 – 2002, 1998 – till today.

Some titles of student projects that Rob has (co-) supervised in 2003:

Professional Master:

  • XML-based Clearing House for Mobile GIS,
  • Spatial Data Handling with OpenGIS,
  • Metadata Interface for Clearing Houses,
  • GIS process documentation to support interoperability – Disaster management case, Kathmandu.


  • Semantics and interoperability in Geo Web Services,
  • Design and implementation of distributed web services in a mobile GIS application,
  • Design and implementation of sensor metadata in a location-based information dissemination system on the internet,
  • XML database technology and its use for GML,
  • Use of web-based ontologies for geodata and service descriptions,
  • Geospatial data Interoperability model for the Indian NSDI.

Professional affiliations

  • OpenGIS Consortium (OGC) contact person for ITC,
  • AGILE contact person for ITC,
  • ISPRS Working group II/5 Secretary,
  • Member of Geo-Informatie Nederland (GIN),
  • TU Delft BETADE affiliate researcher.

Activities in research

Rob's research activities include topics on Internet GIS, mobile GIS and Interoperability which mainly centre around his PhD research. Here, the objective is to design a methodology that facilitates on demand geo-processing in a distributed GIS environment. In this case on demand geo-processing refers to the combination of processes that have to be carried out by a distributed GIS to perform a specific GIS task, being a spatial query, statistical calculation, overlay, or any combination of GIS operations induced by an end-user at a specific intelligence level. In 2002 and 2003 work was done in the field of semantic interoperability, web services and ontology engineering. The research is embedded in two ongoing ITC research projects: TGDI and SLARIM.

Activities in capacity development

Projects that Rob participated in during 2001-2003:

  • EU project on Geo-processing networks in a European territorial interoperability study (GETIS),
  • Refresher course on Geospatial Data-infrastructures in Southern Africa (GDISA),
  • Refresher course on Geospatial Data-infrastructures in Eastern Africa (GDIEA),
  • GEONEDIS, training module on Web Technology for GIS and Mapping.


ISI Journal Articles

Scheider, S., Degbelo, A., Lemmens, R.L.G., van Elzakker, C.P.J.M., Zimmerhof, P., Kostic, N., Jones, J. and Banhatti, G. (2017) Exploratory querying of SPARQL endpoints in space and time. In: Semantic web, 8(2017)1, pp. 65-86. Full text | Full text

Lemmens, R.L.G., Lungo, J., Georgiadou, P.Y. and Verplanke, J.J. (2017) Monitoring Rural Water Points in Tanzania with Mobile Phones : The Evolution of the SEMA App. In: ISPRS International Journal of Geo-Information : open access, 6 (2017)10article no. 316, 20 p. Full text | Full text

Lin, Y.P., Deng, D., Lin, W.-C., Lemmens, R.L.G., Crossman, N.D., Henle, Klaus. and Schmeller, D.S. (2015) Uncertainty analysis of crowd - sourced and professionally collected field data used in species distribution models of Taiwanese moths. In: Biological conservation, 181 (2015) pp. 102-110. Full text | Full text

Broering, A., Echterhoff, J., Jirka, S., Simonis, I., Everding, T., Stasch, C., Liang, S. and Lemmens, R.L.G. (2011) New generation sensor web enablement : review. In: Sensors : open access, 11 (2011)3 pp. 2652-2699. Full text | Full text

Georgiadou, P.Y., Bana, B., Becht, R., Hoppe, R., Ikingura, J., Kraak, M.J., Lance, K.T., Lemmens, R.L.G., Lungo, J.H., McCall, M.K., Miscione, G. and Verplanke, J.J. (2011) Sensors, empowerment and accountability : a digital earth view from East Africa. In: International Journal of Digital Earth, 4 (2011)4 pp. 285-304. Full text | Full text

Köbben, B.J., de By, R.A., Foerster, T., Huisman, O., Lemmens, R.L.G. and Morales, J.M. (2010) Using the SDIlight approach in teaching a geoinformatics master : research article. In: Transactions in GIS, 14 (2010)s1 pp. 25-37. Full text | Full text

Lemmens, R.L.G., Wytzisk, A., de By, R.A. and ... [et al.] (2006) Integrating semantic and syntactic descriptions to chain geographic services. In: IEEE internet computing, 10(2006)5, pp. 42-52. Full text

Other Refereed Journal Articles

Wesselink, A.J., Hoppe, R. and Lemmens, R.L.G. (2015) Not just a tool : taking context into account in the development of a mobile app for rural water supply in Tanzania. In: Water alternatives, 8(2015)2, pp. 57-76. Full text | Full text

Lemmens, R.L.G., de By, R.A., Gould, M., Wytzisk, A. and ... [et al.] (2007) Enhancing geo - service chaining through deep service descriptions. In: Transactions in GIS, 11 (2007)6 pp. 849-871. Full text | Full text

Lemmens, R.L.G. (2004) GPS : theory, algorithms and applications - by by Guochang Xu. - Berlin etc., Springer, 2003 : book review. In: International Journal of Applied Earth Observation and Geoinformation : JAG, 5 (2004)2 pp. 165-166. Full text

Lemmens, R.L.G. (2002) OpenGIS op wereldtournee : verslag van de OpenGIS bijeenkomst in London van 10 tot 13 juni 2002. In: Geodesia : tijdschrift voor geodesie en geo - informatie, 44 (2002)10 pp. 388-390.

Book Chapters

Tsega, H.B., Lemmens, R.L.G., Kraak, M.J. and Lungo, J. (2015) Towards a smarter system for Human Sensor Web. In: Proceedings of 2015 IEEE international conference on pervasive computing and communication workshops (PerCom workshops), 23-27 March 2015, St. Louis, United States of America. Washington: IEEE, 2015. ISBN: 978-1-479984268. pp. 14-19. Full text | Full text

Broering, A., Beltrami, P., Lemmens, R.L.G. and Jirka, S. (2012) Automated integration of geosensors with the sensor web to facilitate flood management. In: Approaches to Managing Disaster - Assessing Hazards, Emergencies and Disaster Impacts / ed. J. Tiefenbacher. InTech, 2012. ISBN 978-953-51-0294-6 pp 65-86. Full text | Full text

Mannaerts, C.M., Maathuis, B.H.P., Molenaar, M. and Lemmens, R.L.G. (2009) The ITC GEONETCast toolbox : a geo capacity building component for education and training in global earth observation and geo information provision to society. In: IGARSS 2009 : Proceedings of the 2009 IEEE international geoscience and remote sensing sympsosium : Earth observation, origins and applications, July 12-17, 2009, Cape Town, South Africa, ISBN 978-1-4244-3395-7 pp. V 385 - V 388. Full text | Full text

Stoter, J.E., Morales, J.M., Lemmens, R.L.G., Meijers, B.M., van Oosterom, P.J.M., Quak, C.W., Uitermark, H.T. and van den Brink, L. (2008) A data model for multi - scale topographical data. In: Headway in spatial data handling : proceedings of the 13th international symposium on Spatial Data Handling, SDH 2008 / ed. by A. Ruas and C. Gold. Berlin : Springer, 2008. ISBN 978-3-540-68565-4 (Lecture Notes in Geoinformaton and Cartography ) pp. 233-254. Full text

Foerster, T., Stoter, J.E. and Lemmens, R.L.G. (2008) An interoperable web service architecture to provide base maps empowered by automated generalization. In: Headway in spatial data handling : proceedings of the 13th international symposium on Spatial Data Handling, SDH 2008 / ed. by A. Ruas and C. Gold. Berlin : Springer, 2008. ISBN 978-3-540-68565-4 (Lecture Notes in Geoinformaton and Cartography ) pp. 255-276. Full text

Lemmens, R.L.G. (2008) Lost and found, the importance of modelling map content semantically. In: International perspectives on maps and the internet / ed. by M.P. Peterson. Berlin : Springer, 2008. ISBN 978-3-540-72028. (Lecture Notes in Geoinformation and Cartography) pp. 377-396. Full text

Lemmens, R.L.G. (2008) Using formal semantics for services within the spatial information infrastructure. In: Creating spatial information infrastructures : towards the spatial semantic web. / ed by P.J.M. van Oosterom and S. Zlatanova. Boca Raton : CRC, 2008. ISBN: 978-1-42007-068-2. pp. 103-118. Full text

PhD theses

Broering, A., Kraak, M.J. (promoter) and Lemmens, R.L.G. (assistant promoter)  (2012) Automated on - the - fly integration of geosensors with the sensor web. Enschede, University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2012. ITC Dissertation 211, ISBN: 978-90-6164-334-0. Full text

Lemmens, R.L.G., van Oosterom, P.J.M. (promoter) and de By, R.A. (promoter)  (2006) Semantic interoperability of distributed geo - services. Delft, Delft University of Technology, 2006. ITC Dissertation 138, ISBN: 90-6164-250-7. Full text

Lemmens, R.L.G. (2006) Semantic interoperability of distributed geo - services : also as open access e-book. Delft, Nederlandse Commissie voor Geodesie (NCG), 2006. Netherlands Geodetic Commission NCG : Publications on Geodesy : New Series 63, ISBN: 90-6132-298-7. Full text | Full text

Conference Proceedings (full papers)

Lemmens, R.L.G., Falquet, G. and Métral, C. (2016) Towards Linked Data and ontology development for the semantic enrichment of volunteered geo-information. In: Proceedings of: Link-VGI : LINKing and analyzing Volunteered Geographic Information (VGI) across different platforms, workshop at the AGILE 2016 Conference, 14 June 2016, Helsinki, Finland. 5 p. Full text | Full text

Deng, D., Chuang, T. and Lemmens, R.L.G. (2009) Conceptualization of place via space clustering and co - occurrence analysis. In: Proceedings of the 2009 International Workshop on Location Based Social Networks, 3 November 2009, Seattle, USA. - New York : The Association for Computing Machinery (ACM). ISBN 978-1-60558-860-5. pp. 49-56. Full text | Full text

Hobona, G., Jackson, M., Gould, M., Higgins, C., Brauner, J., Matheus, A., Foerster, T., Nash, E., Lemmens, R.L.G. and ... [et al.] (2009) Establishing a persistent interoperability test - bed for European geospatial research. In: AGILE 2009 : Proceedings of the 12th Agile internationational conference : Advances in GISscience : proceedings of the 12th AGILE conference / edited by Jan Haunert, B. Kieler, and J. Milde. Hanover, Germany: IKG, Leibniz University of Hanover, 2009. 10 p. Full text | Full text

Köbben, B.J., Lemmens, R.L.G., Morales, J.M., de By, R.A. and Foerster, T. (2009) The SDI - light OSGEO stack at ITC. In: Proceedings of OSGIS : 1st open source GIS UK conference, 22nd June 2009, the Centre for Geospatial Science, University of Nottingham, UK. - Nottingham : University of Nottingham, 2009. 6 p. Full text | Full text

Stoter, J.E., Quak, W., van Oosterom, P.J.M., Meijers, M., Lemmens, R.L.G. and ... [et al.] (2007) Considerations for the design of a semantic data model for a multi - representation topographical database. In: Proceedings of the 2nd ISGI 2007 : international CODATA symposium on generalization of information, Geneva, Switzerland, 1-3 October 2007. / ed. by H. Kremers. Berlin : CODATA, 2007. ISBN 978-3-00-022382-2. (Lecture notes in information sciences) pp. 53-71.

Foerster, T., Stoter, J.E. and Lemmens, R.L.G. (2007) Towards automatic web-based generalisation processing: a case study. In: ICC 2007 : proceedings of the workshop of the ICA commission on generalization and multiple representation, August 2-3 at the 23nd international cartographic conference ICC: Cartography for everyone and for you, 4-10 August 2007 Moscow, Russia. 10 p. Full text | Full text

Lemmens, R.L.G., Granell, C., Wytzisk, A., de By, R.A. and ... [et al.] (2006) Semantic and syntactic service descriptions at work in geo service chaining. In: Proceedings of the 9the AGILE conference on geographic information science, shaping the future of geographic information science in Europe, Visegrad, Hungary, 20-22 April 2006. Székesfehérvár : University of West Hungary, 2006. ISBN 963-229-422-X pp. 51-61. Full text | Full text

Stoter, J.E., Lemmens, R.L.G., Köbben, B.J. and ... [et al.] (2006) Semantic data integration in a multiple representation environment. In: Proceedings of Joint ISPRS working groups II/3 and II/6 workshop on multiple representation and interoperability of spatial data : 22-24 February, 2006 Hannover. 8 p. Full text | Full text

Rawat, S., Roy, P.S., Lemmens, R.L.G. and Saran, S. (2004) GML based model of Indian NSDE format for geo spatial data interoperability. In: Proceedings of the 7th International conference : Global Spatial Data Infrastructure GSDI, February 2-6, 2004, Bangalore India. pp. 20. Full text

Lemmens, R.L.G. and de Vries, M. (2004) Semantic description of location based web services using an extensible location ontology. In: Proceedings of Münster GI-days, 1-2 July 2004 : Geoinformation and mobility. pp. 261-274. (IfGI prints ; 22). Full text

Lemmens, R.L.G. and Arenas, H. (2004) Semantic matchmaking in geo service chains : reasoning with a location ontology. In: Proceedings of the 15th International workshop on database and expert systems applications DEXA'04, Zaragoza, September 2-3 2004. Los Alamitos, IEEE. 2004. ISBN 0-7695-2195-9 pp. 797-802. Full text

Aditya, T. and Lemmens, R.L.G. (2003) Chaining distributed GIS services. In: Prosiding Pertemuan Ilmiah Tahunan XII, Masyarakat Penginderaan Jauh Indonesia : Inovasi dan modifikasi teknologi penginderaan jauh dan SIG untuk pengembangan program Kelatuan dan Pertanian di Indonesia, Bandung, 29-30 Juli 2003. 8 p. pp. . Full text

Lemmens, R.L.G. (2003) Ontology based chaining of distributed geographic information systems. In: Poster proceedings of the 2nd international semantic web conference ISWC, Sanibel, Florida, USA, 20-23 October 2003. 2 p. Full text

Lemmens, R.L.G., de Vries, M. and Aditya, T. (2003) Semantic extension of geo web service descriptions with ontology languages. In: Proceedings of the AGILE 2003 conference : CD-ROM : proceedings of the 6th conference on geographic information science : The science behind infrastructure, Lyon 24-26 April 2003. 15 p.. 595-600.

Lemmens, R.L.G. and de By, R.A. (2002) Distributed GIS and metadata : methods for the description of interoperable GIS components. In: International workshop on mobile and internet GIS, Wuhan, China, August 15-16, 2002. ISPRS Commission II Symposium, Working group 5. 9 p.

Torun, A., Köbben, B.J. and Lemmens, R.L.G. (2000) Processing spatial data on the internet. In: ISPRS 2000 congress : geoinformation for all : Amsterdam, the Netherlands, 16-23 July, 2000. pp. 269-278.

Scientific and Professional Publications

Bucher, Bénédicte., Falquet, G., Métral, C. and Lemmens, R.L.G. (2016) Enhancing the management of quality of VGI : contributions from context and task modelling. In: European Handbook of Crowdsourced Geographic Information / edited by C. Capineri et al. London: Ubiquity Press, 2016. ISBN: 978-1-909188-79-2. pp. 131-142. Full text

Lemmens, R.L.G., Falquet, G., De Sabbata, S., Jiang, B. and Bucher, Bénédicte. (2016) Querying VGI by semantic enrichment. In: European Handbook of Crowdsourced Geographic Information / edited by C. Capineri et al. London: Ubiquity Press, 2016. ISBN: 978-1-909188-79-2. pp. 185-194. Full text

Lemmens, R.L.G. (2013) Training and stakeholder workshops. In: EO2HEAVEN : mitigating environmental health risks : also as e-book. Klopfer, M. Karlsruhe, EO2HEAVEN Consortium, 2013. pp. 55-57. Full text

Maathuis, B.H.P., Mannaerts, C.M., Schouwenburg, M.L., Retsios, V., Lemmens, R.L.G. and Moitlhobogi, T. (2012) AMESD SADC thema toolbox plug - in for ILWIS 3.7.2 or higher : installation, configuration and user guide : XML version 1.1 : e-book. Enschede, University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2012. GEONETCAst Toolbox User Guides , Full text

Swan, J., Foerster, T., Lemmens, R.L.G. and ... [et al.] (2008) Web services test bed : dicovery and invocation of schematization services : a use case for OGC - EuroSDR - Agile persistent testbed for Europe. In: GEO : GEOconnexion UK : serving the geoinformation community in the British isles, the Middle East and Africa, 7 (2008)10 pp. 24-27. Full text

Lemmens, R.L.G., Foerster, T., Hitchcock, A. and Wytzisk, A. (2007) 52º North platform innoveert via open source GIS toepassingen. In: VI Matrix, 15 (2007)4 pp. 42-44. Full text

Lemmens, R.L.G. (2002) Mobiel GIS : configuraties, mogelijkheden en beperkingen : samenvatting. In: Kartografisch tijdschrift, 28 (2002)3 pp. 50. Full text

Lemmens, R.L.G. (2000) Towards an integrated multi - scale decision support system : the linking of bio - economic models and GIS at a village and district level : ICRISAT Sahelian centre, Niamey, Niger, December 1999 : mission report. Enschede, ITC, 2000.

Lemmens, R.L.G. (1993) Dynamic GPS height determination in the decimeter level for bathymetric applications. Delft, Delft Geodetic Computing Centre, 1993. LGR - series : publications of the Delft Geodetic Computing Centre 4,


Köbben, B.J. and Lemmens, R.L.G. (2017) ILWIS : een oude (on)bekende : powerpoint. Presented at: GeoBuzz, 21-22 November 2017, 's Hertogenbosch, Netherlands. 14 slides. Full text | Full text

Sliuzas, R.V. and Lemmens, R.L.G. (2011) Collaborative slum mapping with Google map maker. Presented at ISDE 7 : the 7th intenational symposium on digital earth, 23-25 August 2011, Perth, Australia. 8 p. Full text

Verplanke, J.J., Miscione, G. and Lemmens, R.L.G. (2011) Reflections on local knowledge from the experience of the human sesor web : powerpoint. Presented at Workshop Multi- and interdisciplinary research on spatial knowledge in the light of SII : 14th AGILE 2011 pre-conference workshop, 18 April 2011, Utrecht, the Netherlands. 11 slides. Full text

Maathuis, B.H.P., Mannaerts, C.M., Lemmens, R.L.G., Schouwenburg, M.L. and Retsios, V. (2010) The GEONETcast and the ESA DDS toolboxes for food and water security in Africa : powerpoint + abstract. In: AARSE 2010 : 8th international conference African Association of Remote Sensing of the Environment, AARSE, on earth observation for Africa's development agenda : conference proceedings, 25-29 October 2010, Addis Ababa, Ethiopia. - [s.l.] : [s.n.], 2010. - 163 p. ; 28 cm. 41 slides. Abstract published in: AARSE 2010 : 8th AARSE conference on earth observation for Africa's development agenda : abstracts book : scientific symposium, exhibition and workshops, 25-29 October 2010, Addis Ababa, Ethiopia. - [s.l.] : United Nations Conference Center (UNCC) ; United Nations Economic Commission for Africa (UNECA), 2010. - 163 p. ; 28 cm, pp. 31. Full text | Full text

Morales, J.M., de By, R.A. and Lemmens, R.L.G. (2008) On the design of sustainable SDI components. Presented at the 2008 Geospatial Infrastructure solutions onference, March 9-12, 2008, Seattle, Washington USA. 9 p. Full text

de By, R.A., Morales, J.M. and Lemmens, R.L.G. (2007) Methodical construction of sustainable SDI nodes. Presented at the 8th AfricaGIS conference and exhibition, 17- 21 September 2007, Ouagadougou, Burkina Faso. 10 p. Full text

Lemmens, R.L.G. (2006) Exploitation of ontology mappings for the discovery of geo - web services : abstract. In: Geographic information science : proceedings of the 4th international conference GIScience 2006, Münster, Germany, 20-23 September, 2006 : extended abstracts. Münster : Universität Münster, Institut für Geoinformatik (IfGI), 2006. (IfGI prints ; 28; ) ISBN 3-936616-25-6. pp. 299-304. Full text

Lemmens, R.L.G. (2004) Applicability of the semantic web to geo service chaining. Presented at the OpenGIS information communities and semantics working group meeting, Southampton, 15 June 2004. 11 p. Full text

Lemmens, R.L.G., Köbben, B.J. and Wytzisk, A. (2004) Interoperability research at ITC : the emergency management case. Presented at the 7th AGILE conference on geographic information science : workshop on interoperability for geoinformation, Heraklion, April 28, 2004. 29 p. Full text

Lemmens, R.L.G., Christensen, J. and Greenwood, J.W. (2004) Preliminary ideas on a geosemantics interest group. Presented at the OpenGIS information communities and semantics working group meeting, Southampton, 15 June 2004. 11 p. Full text

Köbben, B.J. and Lemmens, R.L.G. (2003) Connecting distributed geoservices : interoparability research at ITC. Presented at the AGILE 2003 conference : CD-ROM : proceedings of the 6th conference on geographic information science : The science behind infrastructure, Lyon 24-26 April 2003. 15 p. Full text

Lemmens, R.L.G. (2003) Distributed interoperable processing in GIS : powerpoint. Presented at Building blocks in perspective, BETADE workshop Noordwijkerhout, The Netherlands, May 27-28, 2003. 7 slides. Full text