Kathleen Stewart
Associate Professor
Ph.D Spatial Information Science and Engineering, The University of Maine
"Kathleen Stewart is interested in modeling geospatial semantics, temporal GIS, moving objects research, and ontologies and their role for GIS."
College of Liberal Arts and Science Dean's Scholar 2010-2012
Kathleen Stewart is an associate professor in the Department of Geography at the University of Iowa. Dr. Stewart's research interests relate to modeling geospatial semantics, including moving objects research, event modeling for dynamic GIS, reasoning about spatio-temporal phenomena over multiple granularities, and geospatial ontologies and their role for geographic information system design. She is also interested in topics relating to hazards research, especially as it relates to floods. She teaches courses on spatiotemporal data modeling, geographic database design, geovisualization, and fundamentals of geographic information science. Support of her research has been provided by agencies including the National Science Foundation, IARPA, and the National Geospatial-Intelligence Agency among others.
Dr. Stewart is an associate editor for Computers, Environment, and Urban Systems. She serves on the editorial board of The International Journal of Geographical Information Science (IJGIS), Transactions in GIS, the GIS section of the journal, Geography Compass, and the new open-access journal Journal of Spatial Information Science (JOSIS). She currently serves as Chair of the Research Committee of the University Consortium for Geographic Information Science (UCGIS).
She was a co-organizer for the symposium on Space-Time Integration in GIS and GIScience held at the AAG Annual Meeting in Seattle, WA in April 2011. Previously she served as the program co-chair for the International Conference on Spatial Information Theory (COSIT 2009) held in Aber Wrac'h, France in September 2009, and co-organized the workshop on Temporal GIS: The Past 20 Years and the Next 20 Years at GIScience 2008. She gave the invited Transactions in GIS plenary presentation at the AAG Annual Meeting 2012 and also gave an invited presentation at the Workshop on movement pattern analysis at GIScience 2010. She is a member of numerous program committees including the program committee for Seventh International Conference on GIScience (GIScience 2012), the 10th International Conference on Spatial Information Theory (COSIT 2011), and the 10th International Conference on Geospatial Semantics (Geos 2011), among others.
We are very pleased to announce a new NSF-support IGERT award, “Geoinformatics for Environmental and Energy Modeling and Prediction (GEEMaP)” to the University of Iowa. See here for more details. This will be a very exciting new opportunity for graduate study in our Department.
Check out:COSIT 2009 with great photos of the conference site. We had an excellent lineup of tutorials and workshops as well as the main conference so please visit the COSIT website. COSIT Proceedings are now available.
Published in Spring 2008: Understanding Dynamics of Geographic Domains, Kathleen Stewart Hornsby and May Yuan (editors), CRC Press.
And in Fall 2007 : Computation and Visualization for the Understanding of Dynamics in Geographic Domains: A Research Agenda, May Yuan and Kathleen Stewart Hornsby, CRC Press.
Recent and upcoming activities:
- GIScience Conference 2012, Columbus, OH, September 2012
- Mapping Ideas: Discovering and Information Landscapes, NSF-CDI Workshop, San Diego, CA, August 2012
- UCGIS Symposium, Washington, DC June 2012
- AAG Annual Meeting, New York, NY February 2012
- COSIT 2011, Belfast, ME, September 2011
- UCGIS Summer Assembly, Boulder, CO, June 2011
Courses:
044: 005 Foundations of GIScience (Fall 2010, Spring 2012)
044:109 Introduction to Geographic Visualization (Spring 2011)
044:141 Introduction to Geographic Databases (Fall 2010, Fall 2011)
044:197 Topics in Spatial Cognition (Spring 2011)
044:197 Introduction to Geoinformatics (Fall 2011)
Graduate Research Assistants
Current
Junchuan Fan, M. A. in Geography, The University of Iowa, 2010 - present
Jon Goergen, PhD in Geography, The University of Iowa, 2011 - present
Shane Hubbard, PhD in Geography, The University of Iowa, 2008 - present
Wei Wang, PhD in Geography, The University of Iowa, 2008 - present
Emily White, PhD in Geography, The University of Iowa 2010- present
Graduated
Veronica Nixon, MA in Geography,The University of Iowa, May 2011
Nathaniel Rock, Mapping Geospatial Events Based on Extracted Spatial Information from Web Documents, MA in Geography, The University of Iowa, May 2011
Inga Kulik (Mau), PhD in Geomatics, The University of Melbourne, Australia, co-advisor with Prof. Ian Bishop, 2009
Dan Bowe, MS in Spatial Information Science and Engineering, University of Maine, December 2007.
Kripa Joshi, Combining Geospatial and Temporal Ontologies, MS in Spatial Information Science and Engineering, University of Maine, December 2007.
Kraig King, Linking Moving Object Databases with Ontologies, MS in Spatial Information Science and Engineering, University of Maine, December 2007.
Stephen Cole, Modeling Vessel Event and Notification Triggers in a Harbor Domain, MS in Spatial Information Science and Engineering, University of Maine, December 2005.
Suzannah Hall, Generating Linear Orders of Events for Geospatial Domains, MS in Spatial Information Science and Engineering, University of Maine, December 2004.
Chitra Ramalingam, Modeling Multiple Granularities of Spatial Objects, MS in Spatial Information Science and Engineering, University of Maine, December 2002.
Interested in being a graduate research assistant? Contact me at kathleen-stewart[at]]uiowa[dot]edu
Research grants
Co-PI, IGERT: Geoinformatics for Environmental and Energy Modeling and Prediction (GEEMaP), National Science Foundation, 2010-2015
PI, A spatiotemporal model for flood evacuation, The University of Iowa, 2010 - 2011
PI (subcontract), Mapping Hazards and Mitigation Infrastructure for the City of Des Moines, IA, City of Des Moines, IA, 2010-2012
PI, Modeling Community Response to Natural Disaster, National Science Foundation, NSF SGER Research, 2008
Co-PI,Simulating Spatiotemporal Interactions of Mobile Entities, National Geospatial-Intelligence Agency, 2008-2010
PI, Spatio-temporal Data Fusion, National Geospatial-Intelligence Agency, 2005-2008
Co-PI, Workshop on Computation and Visualization for the Understanding of Dynamics in Geographic Domains, Disruptive Technology Office/University Consortium for Geographic Information Science (UCGIS), 2006
PI, Spatio-temporal Panning and Zooming, National Geospatial-Intelligence Agency and Geography and Regional Science, National Science Foundation, 2000-2003
Publications
Books and Edited Volumes
Stewart Hornsby, K., C. Claramunt, M. Denis, G. Ligozat, (Eds.) (2009) Spatial Information Theory, 9th International Conference on Spatial Information Theory, COSIT 2009, Aber Wrac'h, France, September 21-25, 2009, Proceedings, Lecture Notes in Computer Science, Vol. 5756, Springer, Berlin.
Stewart Hornsby, K. and M. Yuan (Eds.)(2008) Understanding dynamics of geographic domains, CRC Press, New York, NY.
Stewart Hornsby, K. (Ed.) (2007) Ontology for the Intelligence Community: towards effective exploitation and integration of intelligence resources, Proceedings of OIC-2007, November 2007, Columbia, MD.
Yuan, M. and K. Stewart Hornsby(2007) Computation and visualization for the understanding dynamics of geographic domains: A Research Agenda, CRC Press, New York, NY.
Hornsby, K., and M. Worboys (Eds.) (2004) Special issue on event-oriented approaches for geographic information science, Spatial Cognition and Computation, 4(1).
Roddick, J. and K. Hornsby (Eds.) Proceedings of the International Workshop on Temporal, Spatial, and Spatio-temporal Data Mining, TSDM2000, Lyon, France, Lecture Notes in Artificial Intelligence, 2007, Springer, 2001.
Refereed Journal Articles
Hubbard S., and K. Stewart Hornsby (2011) Modeling alternative sequences of events in dynamic geographic domains, Transactions in GIS, 15(5): 557-575.
Kulik,I., K. Stewart Hornsby, and I. Bishop (2011) Modeling geospatial trend changes in vegetation monitoring data, Computers, Environment and Urban Systems, 35:1, 45-56.
Nixon, V. and K. Stewart Hornsby (2010) Using geolifespans to model dynamic geographic domains, The International Journal of Geographical Information Science, 24:9, 1289-1308.
Stewart Hornsby, K. and K. Joshi (2010) Combining ontologies to automatically generate temporal perspectives of geospatial domains, Geoinformatica, 14 (4): 481- 505. (available online http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s10707-009-0088-1)
Stewart Hornsby, K. and Li, N. (2009) A conceptual framework for modeling dynamic paths from natural language expressions, Transactions in GIS, 13(s1): 27-45.
Stewart Hornsby, K. and K. King (2008), Modeling Motion Relations for Moving Objects on Road Networks, Geoinformatica, 12(4): 477-495.
Hornsby, K. and S. Cole (2007) Modeling moving geospatial objects from an event-based perspective,Transactions in GIS, 11(4): 555-573.
Campos, J., K. Hornsby, M. Egenhofer (2003) A model for exploring virtual reality environments, Journal of Visual Languages and Computing, Elsevier Press, 14(5): 471-494.
Hornsby, K. and M. Egenhofer (2002) Modeling moving objects over multiple granularities, Special issue on Spatial and Temporal Granularity, Annals of Mathematics and Artificial Intelligence, Kluwer Academic Press. 36:177-194.
Hornsby, K. (2001) Temporal zooming, Transactions in GIS. 5(3): 255-272.
Hornsby, K. and M. Egenhofer (2000) Identity-based change: a foundation for spatio-temporal knowledge representation, International Journal of Geographical Information Science.14(3): 207-224.
Refereed Conference Proceedings and Chapters in Books
White, E. and K. Stewart (2011) Modeling geospatial barriers, First ACM SIGSPATIAL International Workshop on Spatial Semantics and Ontologies (SSO) 2011, Chicago, IL.
Stewart Hornsby, K. and Wang, W. (2010) Representing dynamic phenomena based on spatiotemporal information extracted from web documents. Extended Abstracts, GIScience Conference 2010, In press.
Stewart Hornsby, K. and Li, N. (2009) Modeling spatiotemporal paths for single moving objects, In: G. Navratil (Ed.) Research Trends in Geographic Information Science, Lecture Notes in Geoinformation and Cartography, Springer, Berlin, 153-170.
Stewart Hornsby, K. (2008) Modeling moving objects: future research possibilities, Proceedings of the Colloquium for Andrew U. Frank's 60th Birthday, Technical Report, Vienna University of Technology,117-124.
Stewart Hornsby, K. and K. King (2008) Linking geosensor network data and ontologies for a transportation domain, In: S. Nittel, A. Labrinidis, and A. Stefanidis (eds). Advances in Geosensor Networks, October 2006, Lecture Notes in Computer Science 4540, Springer, Berlin, 191-209.
Mau, I., K. Hornsby and I. Bishop (2007) Modeling geospatial events and impacts through qualitative change, Proceedings of the International Conference on Spatial Cognition, Spatial Cognition 2006, Lecture Notes in Artifical Intelligence, 4387, Springer, Berlin, 156-174.
Cole, S. and K. Hornsby (2005) Modeling Noteworthy Events in a Geospatial Domain, Proceedings of the First International Conference on Geospatial Semantics, GeoS 2005, Lecture Notes in Computer Science, 3799, Springer, Berlin, pp. 78-92.
Hall, S. and K. Hornsby (2005) Ordering events for dynamic geospatial domains, in A. Cohn and D. Mark (eds.) Proceedings of the Seventh International Conference on Spatial Information Theory, COSIT 2005, Lecture Notes in Computer Science 3693, Springer, Berlin, pp. 330-346.
Hornsby, K. (2004) Retrieving event-based semantics from images, Proceedings of the IEEE Sixth International Symposium on Multimedia Software Engineering, 13-15 December 2004, Miami, FL, IEEE Computer Society, pp. 529-536.
Campos, J. and K. Hornsby (2004) Temporal constraints between cyclic geographic events, Proceedings of GeoInfo 2004, Campos do Jordao, Brazil, November 22-24, 2004.
Worboys, M. and K. Hornsby (2004) From objects to events: GEM, the geospatial event model, In M. Egenhofer, C. Freksa, H. Miller (Eds.) Proceeding of GIScience 2004, Lecture Notes in Computer Science, 3234, Springer, Berlin, pp. 327-343.
Hornsby, K. and S. Hall (2004) Generating linear orders of text-based events, Proceedings of the Workshop on Computational Lexical Semantics, Human Language Technology Conference 2004 (HLT/NAACL’04), Boston, MA. pp 92-99.
Campos, J. and K. Hornsby (2003) Beyond the VCR metaphor: operations for a temporal VRGIS, ISPRS Joint Workshop on Spatial, Temporal and Multi-Dimensional Data Modeling and Analysis, October 2-3, 2003, Quebec City, Canada.
Hendricks, M., M. Egenhofer, K. Hornsby (2003) Structuring a wayfinder's dynamic space-time environment, in W. Kuhn, M. Worboys, S. Timpf (eds.) Proceedings of the International Conference on Spatial Information Theory, COSIT’03, Kartause Ittingen, Switzerland, Lecture Notes in Computer Science, Vol 2855, Springer, Berlin, pp. 75-92.
Campos, J., M. Egenhofer, K. Hornsby (2003) Animation model to support exploratory analysis of dynamic environments, Proceedings of the 2003 Summer Computer Simulation Conference (SCSC'03), July 20-24, 2003, Montreal, Canada, In press.
Roddick, J. K. Hornsby, and D. de Vries (2003) A unifying semantic distance model for determining the similarity of attribute values, in M. Oudshoorn (Ed.) Proceedings of the 26th Australasian Computer Science Conference, Adelaide, Australia, Vol 16, ACS, pp. 111-118.
Campos, J., K. Hornsby, M. Egenhofer (2002) A temporal model of virtual reality objects and their semantics, Proceedings of International Conference on Distributed Multimedia Systems (DMS'2002), San Francisco, CA, September 26-28, 2002 , Knowledge Systems Institute, Skokie, IL, pp. 581-588. pdf file
Ramalingam, C., and K. Hornsby (2001) Coarsening granularity over objects, Proceedings of the First COSIT Workshop on Spatial Vagueness, Uncertainty,, and Granularity, Morro Bay, CA.
Roddick,J., K. Hornsby, and M. Spiliopoulou (2001) An updated bibliography of temporal, spatial and spatio-temporal data mining research in J. Roddick and K. Hornsby (Eds.) Proceedings of the International Workshop on Temporal, Spatial, and Spatio-temporal Data Mining, TSDM2000, Lyon, France, Lecture Notes in Artificial Intelligence, 2007, Springer, 2001, pp. 147-163.
Hornsby, K.(2000) Shifting granularity over geospatial lifelines, In: Papers of the AAAI Workshop on Spatial and Temporal Granularity, Technical Report WS-00-08, Austin, TX, July 30, 2000, AAAI Press, Menlo Park, CA, pp. 33-36.
Hornsby, K. (2000) Deriving summaries through an identity-based approach, in: J. Etheredge and B. Manaris (Eds.), Proceedings of the 13th International Florida Artificial Intelligence Research Society Conference, FLAIRS-2000, Orlando, FL, May 22-25, 2000, AAAI Press, pp. 271-275.
Hornsby, K., M. Egenhofer, and P. Hayes (1999) Modeling cyclic change, in: P. Chen, D. Embley, J. Kouloumdjian, S. Liddle, and J. Roddick (Eds.), Advances in Conceptual Modeling, Proceedings of the ER'99 Workshops, Paris, France, Vol.1727, Lecture Notes in Computer Science, Springer-Verlag, Berlin, pp. 98-109.pdf file
Hornsby, K. and M. Egenhofer (1999) Shifts in detail through temporal zooming, In: A. Tjoa, A. Cammelli, and R. Wagner (Eds.), Proceedings of the Tenth International Workshop on Database and Expert Systems Applications, 1-3 September, 1999, Florence, Italy, IEEE Computer Society, Los Alamitos, CA, pp. 487-491.pdf file
Hornsby, K. and M. Egenhofer (1998) "Identity-based change operations for composite objects," In: T. Poiker and N. Chrisman (Eds.) Proceedings of 8th International Symposium on Spatial Data Handling, Vancouver, Canada, pp. 202-213. pdf file
Hornsby, K. and M. Egenhofer (1997) "Qualitative Representation of Change," In Spatial Information Theory - A Theoretical Basis for GIS, International Conference COSIT '97, Laurel Highlands, PA, Vol. 1329, Lecture Notes in Computer Science, S. Hirtle and A. Frank, Eds. Berlin: Springer-Verlag, 1997, pp. 15-33. pdf abstract
Florence, J., K. Hornsby, and M. Egenhofer (1996) "The GIS WallBoard: interactions with spatial information on large-scale displays," In Proceedings ofSeventh International Symposium on Spatial Data Handling, Delft, The Netherlands, pp. 449-463. abstract
Conference Proceedings
K. Hornsby (2000) Creating summaries of spatio-temporal data, In: Abstracts, First International Conference on Geographic Information Science, GIScience 2000, Savannah, GA, October 28-31, 2000, p. 170-171.
K. Hornsby (1999) Spatio-temporal knowledge representation over shifting granularities (position paper) NCGIA's Project Varenius Specialist Meeting on Discovering Geographic Knowledge in Data Rich Environments,March 1999, Seattle, WA.(Workshop Report)
K. Hornsby and M. Egenhofer (1998) An algebra for fields (position paper) NCGIA's Project Varenius Specialist Meeting on The Ontology of Fields, June 1998, Bar Harbor, ME.
K. Hornsby (1997) An identity-based model for representing spatio-temporal change University Consortium for Geographic Information Science summer Assembly and Retreat, June 15 - 21, 1997, Bar Harbor, ME.
K. Hornsby (1996) Commonsense reasoning about spatial diffusion (position paper) NCGIA Specialist Meeting on Formal Models of Commonsense Geographic Worlds, October 1996, San Marcos, TX.
Reports
J. Roddick, L. Al-Jadir, L. Bertossi, M. Dumas, F. Estrella, H. Gregersen, K. Hornsby, J. Lufter, F. Mandreoli, T. Männistö, E. Mayol, and L. Wedemeijer (2000) Evolution and change in data management: issues and directions. SIGMOD Record 29(1): 21-25.
D. Mark, M. Egenhofer, and K. Hornsby (1997) Formal Models of Commonsense Geographic Worlds, Report on the Specialist Meeting of Research Initiative 21, Technical Report, TR-97-2, National Center for Geographic Information and Analysis, Santa Barbara, CA.
Program committees
2010
4th International Workshop on Semantic and Conceptual Issues in GIS, SeCoGIS 2010, Vancouver, Canada, November 2010
6th International Conference on Geographic Information Science, GIScience 2010, Zurich, Switzerland, September 2010.
The International Conference on Spatial Cognition, Mt Hood, Oregon, August 2010
2009
4th Conference on Ontologies for the Intelligence Community, OIC2009, November 2009
3rd International Workshop on Geospatial Semantics, GeoS 2009, Mexico City, Mexico, November 2009
3rd International Workshop on Semantic and Conceptual Issues in GIS, SeCoGIS 2009, Gramado, Brazil, November 2009
2nd International Workshop on Behaviour Monitoring and Interpretation, 3D GeoInfo, Ghent, Belgium, November 2009
Terra Cognita 2009 Workshop, 8th International Semantic Web Conference, Chantilly, VA, October 2009
12th International Conference on Geographic Information Science, AGILE 2009, Hannover, Germany, June 2009.
Other Information:
Office:
305 Jessup Hall
Mailing Address:
Department of Geography
316 Jessup Hall
The University of Iowa
Iowa City, IA 52242
Phone: (319) 335-0161
Fax: (319) 335-2725
E-mail: kathleen-stewart[at]uiowa[dot]edu
