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Dr. Paul M. TorrensDepartment of Geographical Sciences, University of Maryland

Publications >>

The following articles are provided for scholarly puropses only. Please ensure you have appropriate subscriptions/permissions to access the articles before downloading them.

 

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Torrens, P.M. & McDaniel, A. (2012) "Modeling geographic behavior in riotous crowds". Annals of the Association of American Geographers (in press; DOI: 10.1080/00045608.2012.685047))

GIS social analysis



Torrens, P.M. & Griffin, W.A. (2012) “Exploring the micro-social geography of children’s interactions in preschool: a long-term observational study and analysis using Geographic Information Technologies”.
Environment and Behavior (in press; DOI: 10.1177/0013916512438885)



IJGIS


Zou, Y.; Torrens, P.M.; Ghanem, R.; Kevrekidis, I. (2012) “Accelerating agent-based computation of complex urban systems”. International Journal of Geographic Information Science  (in press; DOI: 10.1080/13658816.2012.669891)


manuscript

Torrens, P.M. (2012) “Building mega-models for megacities”. In Complexity and the Planning of the Built Environment, De Roo, Gert; Hiller, Jean; and Van Wezemael, Joris (Eds.). Farnham: Ashgate (in press)

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Torrens, P.M. (2012). "Moving agent-pedestrians through space and time". Annals of the Association of American Geographers, 102(1): 35-66 (DOI: 10.1080/00045608.2011.595658)

CEUS


Torrens, P.M., Nara, A.; Li, X.; Zhu, H.; Griffin, W.A.; Brown, S. (2012) “An extensible simulation environment and movement metrics for testing walking behavior in agent-based models”. Computers, Environment and Urban Systems 36(1): 1-17 (DOI: 10.1016/j.compenvurbsys.2011.07.005)



agen-based models GIS

Torrens, P.M. (2012) “Urban geosimulation”. In Agent-Based Models of Geographical Systems: Moving from Theory to Real World Applications, Heppenstall, A.; Crooks, A.; See, L.; Batty, M. (Eds.). Berlin: Springer-Verlag, pp. 435-451 (DOI: 10.1007/978-90-481-8927-4_20) 


Torrens, P.M., Li, X., Griffin, W.A. (2011). “Building agent-based walking models by machine-learning on diverse databases of space-time trajectory samples”. Transactions in Geographic Information Science, 15(s1): 67-94 [movie demo link]



Torrens, P.M. (2011) “Calibrating and validating cellular automata models of urbanization”. In Urban Remote Sensing: Monitoring, Synthesis and Modeling in the Urban Environment, Yang, Xiaojun (Ed.). Chichester: John Wiley & Sons, pp. 335-345

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Torrens, P.M. (2010). “Geography and computational social science”. GeoJournal, 75(2): 133-148 (DOI: 10.1007/s10708-010-9361-y)

 Torrens, P.M. (2010). “Agent-based modeling and the spatial sciences”. Geography Compass, 4(5): 428-448 (DOI: 10.1111/j.1749-8198.2009.00311.x
   Torrens, P.M. (2009) “Process models and next-generation geographic information technology”. In GIS Best Practices: Essays on Geography and GIS. Redlands, CA: ESRI Press, pp. 63-75.
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  Torrens, P.M. (2009). “Cellular automata”, in: Kitchin, R. and Thrift, N. (Eds.), International Encyclopedia of Human Geography, London: Elsevier, pp. 1-4.
   Torrens, P.M. (2009). “Process models and next-generation geographic information technology”, ArcNews, 31(2) (summer): 1-4
   Torrens, P.M. (2008). "Modeling megacity futures". Symposium on Megacities, Sonny Astani Department of Civil and Environmental Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, November 10-11, 2008
  

Torrens, P.M. (2008) “Novel cartographies of cyberspace will add value to online navigation, search, and business intelligence”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

   Torrens, P.M. (2008) “The small-scale geography of patterns and processes will become instrumental in exploring nano-scale worlds”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future
  

Torrens, P.M. (2008) “The shortcomings of online mapping services will constrain their extensibility”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Next-generation interfaces for maps are needed to keep pace with the world's evolving geography and data”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Process models will dominate innovation on the Geospatial and Semantic Webs”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Competition in the commercialization of geodata and geospatial services will intensify, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Geosimulation will infiltrate mainstream modeling and geoprocessing on the Web”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Geospatial technology blurs the boundary between cyberspace and urban space to form geocomputable cities”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “Geodemographics will grow increasingly important to future business intelligence”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

  

Torrens, P.M. (2008) “The popularity of geospatial information and hardware will usher-in a next generation of privacy concerns”, in Pang, Alex Soojung-Kim (Ed.), Signtific: The Future of Science and Technology, Palo Alto: Institute for the Future

   Shiode, N. & Torrens, P. M. (2008) “Comparing the growth dynamics of real and virtual cities”. In Understanding Dynamics of Geographic Domains, Hornsby, K. & Yuan, M., (Eds.). Boca Raton, FL: CRC Press.
   Torrens, P.M. (2008) “A toolkit for measuring sprawl”. Applied Spatial Analysis and Policy, 1(1): 5-36 (DOI: 10.1007/s12061-008-9000-x)
  Torrens, P.M. (2008) "Wi-Fi geographies". Annals of the Association of American Geographers 98(1): 59-84 (DOI: 10.1007/s12061-008-9000-x)
b   Torrens, P.M. (2007) “Behavioral intelligence for geospatial agents in urban environments”, IEEE Intelligent Agent Technology (IAT 2007). Los Alamitos, CA, IEEE, pp. 63-66
   Nara, A. & Torrens, P.M. (2007) “Spatial and temporal analysis of pedestrian egress behavior and efficiency”, In Association of Computing Machinery (ACM) Advances in Geographic Information Systems, Samet, H.; Shahabi, C.; Schneider, M.(Eds.) New York, ACM, pp. 284-287
   Torrens, P.M. (2007) “A geospatial exoskeleton for behavioral agents in urban simulations”, Agent 2007: Complex Interaction and Social Emergence, North, M.; Macal, C.; Sallach, D. (Eds.) Argonne, IL, Argonne National Labs and University of Chicago, pp. 457-464
  

Griffin, W.; Schmidt, S.; Nara, A.; Torrens, P.M.; Sechler, C. (2007) “Integrating ABM and GIS to model typologies of playgroup dynamics in preschool children”, Agent 2007: Complex Interaction and Social Emergence, North, M.; Macal, C.; Sallach, D. (Eds.)Argonne, IL, Argonne National Labs and University of Chicago, pp. 17-24

  Li, K.; Peng, Z.; Crittenden, J.; Guhathakurta, S.; Sawhney, A.; Fernando, H.; McCartney, P.; Grimm, N.; Joshi, H.; Konjevod, G.; Choi, Y.; Winter, S.; Gerrity, D.; Kahhat, R.; Chen, Y.; Allenby, B.; Torrens, P.M. (2007) “Development of a framework for quantifying the environmental impacts of urban development and construction practices”. Environmental Science and Technology 41(14) pp 5130 - 5136 (DOI: 10.1021/es062481d)
 
Torrens, P.M. & Nara, A. (2007) “Modeling gentrification dynamics: A hybrid approach”. Computers, Environment and Urban Systems 31: 337–361 (DOI:10.1016/j.compenvurbsys.2006.07.004)
 
Torrens, P.M. (2007) “A geographic automata model of residential mobility”. Environment & Planning B 34 (2): 200-222 (DOI:10.1068/b31070)
  Torrens, P.M. (2006) “Simulating sprawl”. Annals of the Association of American Geographers 96(2): 248–275.
  Torrens, P.M. (2006) “Remote sensing as dataware for human settlement simulation”. In Remote Sensing of Human Settlements, M. Ridd and Hipple, J. D.(Eds.). Bethesda: American Society of Photogrammetry and Remote Sensing, pp. 693-699
  Torrens, P.M. (2006) “Geosimulation and its application to urban growth modeling”. In Complex Artificial Environments, J. Portugali (Eds), London: Springer-Verlag, pp.  119-134
  Torrens, P. M. (2006) “Agent-based models”. In The Encyclopedia of Human Geography, B. Warf (Ed.), Thousand Oaks: Sage, pp. 1-2
futures
  Allen, P. M., & Torrens, P.M. (2005) “Knowledge and complexity”. Futures, 37(7), 581-584
futures
  Batty, M. & Torrens, P.M. (2005) “Modeling and prediction in a complex world”. Futures, 37(7): 745-766
futures
  Allen, P.M. & Torrens, P.M. (2005) (Eds.) “Knowledge and complexity”. Futures, 37(7/8)
IJGIS
  Torrens, P. M. & Benenson, I. (2005) “Geographic Automata Systems”. International Journal of Geographic Information Science, 19(4): 385-412
  Torrens, P.M. “Geosimulation and transport modeling”. (2004) In Handbook of Transportation Geography and Spatial Systems 5, P. Stopher, K. Button, K. Haynes, D. Hensher (Eds.), London: Pergamon/Elsevier Science, pp. 549-565
  Benenson, I. & Torrens, P.M. (2004) “A minimal prototype for integrating GIS and geographic simulation through Geographic Automata Systems”. In GeoDynamics, P. Atkinson, G. Foody, S. Darby, F. Wu (Eds.) Florida: CRC Press, pp. 347-369
  Benenson, I. & Torrens, P.M. (2004) “Geosimulation: object-based modeling of urban phenomena”. Computers, Environment and Urban Systems 28 (1/2): 1-8 (This article is provided for scholarly puropses only. Please ensure you have appropriate subscriptions/permissions to access this article before downloading)
  Benenson, I. & Torrens, P.M. (Eds.) (2004) “Geosimulation: Object-Based Modelling of Urban Phenomena”. Special Issue, Computers, Environment and Urban Systems, 28 (1/2)
Geosimulation: automata-based models of urban phenomena
  Benenson, I. & Torrens, P.M. (2004) Geosimulation: Automata-Based Modeling of Urban Phenomena. London: John Wiley & Sons
  Torrens, P.M. (2003) “Automata-based models of urban systems”. In Advanced Spatial Analysis, P. Longley & M. Batty (Eds.), Redlands, ESRI Press, pp. 61-79
  Benenson, I. & Torrens, P.M. (2003) “Geographic Automata Systems: A new paradigm for integrating GIS and geographic simulation”. In Proceedings of the 7th International Conference on Geocomputation. Martin, D. (Ed.). Southampton, GeoComputation CD-ROM
  Torrens, P.M. (2003) “SprawlSim: modeling sprawling urban growth using automata-based models”. In Agent-Based Models of Land-Use and Land-Cover Change, D. Parker, T.Berger, S. Manson (Eds.). Belgium, LUCC International Project Office, pp. 72-79
  Torrens, P.M. (2002) “Cellular automata and multi-agent systems as planning support tools”. In Planning Support Systems in Practice, S. Geertman & J. Stillwell (Eds.). London, Springer-Verlag, pp. 205-222
  Torrens, P.M. (2001) “Where in the world? Exploring the factors driving place location knowledge among secondary level students in Dublin, Ireland”. Journal of Geography 100 (2): 49-61 (This article is provided for scholarly puropses only. Please ensure you have appropriate subscriptions/permissions to access this article before downloading)
  Torrens, P. M. & O' Sullivan, D. (2001) “Cellular automata and urban simulation: where do we go from here?”. Environment and Planning B 28 163-168 (DOI:10.1068/b2802ed)
  Batty, M., D. Chapman, S. Evans, M. Haklay, S. Kueppers, N. Shiode, A. Smith and P.M. Torrens (2001) “Visualizing the city: communicating urban design to planners and decision-makers” In Planning Support Systems: Integrating Geographic Information Systems, Models, and Visualization Tools, R. K. Brail and R. E. Klosterman (Eds.). Redlands, CA and New Brunswick, NJ, ESRI Press and Center for Urban Policy Research Press, pp. 405-443
  Torrens, P.M. “Can geocomputation save urban simulation? Throw some agents into the mixture, simmer, and wait…”. CASA Working Paper 32, University College London, Centre for Advanced Spatial Analysis
cybergeo
  Batty, M. & Torrens, P.M. (2001) “Modeling complexity: the limits to prediction.” CyberGeo 201
  Batty, M. & Torrens, P.M. (2001) “Modeling complexity: the limits to prediction”, CASA Working Paper 36, University College London, Centre for Advanced Spatial Analysis
  Torrens, P. M. (2001) “New tools for simulating housing choices”. In Program on Housing and Urban Policy Conference Paper Series (C01-006). University of California, Berkeley, Institute of Business and Economic Research and Fisher Center for Real Estate and Urban Economics
  Torrens, P. M. (2000) “How cellular models of urban systems work”. CASA Working Paper 28. University College London, Centre for Advanced Spatial Analysis
  O'Sullivan, D. and Torrens, P.M. (2000) “Cellular models of urban systems”. In Theoretical and Practical Issues on Cellular Automata. S. Bandini and T. Worsch (Eds.) London, Springer-Verlag, pp. 108-117
  Torrens, P.M. & Alberti, M. (2000) “Measuring sprawl”. CASA Working Paper 27. University College London, Centre for Advanced Spatial Analysis
  Batty, M., D. Chapman, S. Evans, M. Haklay, S. Kueppers, N. Shiode, A. Smith and P.M. Torrens (2000) "Visualizing the city: Communicating urban design to planners and decision-Makers". CASA Working Paper 26. University College London, Centre for Advanced Spatial Analysis.
  O'Sullivan, D. & Torrens, P.M. (2000). "Cellular models of urban systems". CASA Working Paper 22. University College London, Centre for Advanced Spatial Analysis.
  Torrens, P. M. (2000) “How land-use and transportation models work”. CASA Working Paper 20. University College London, Centre for Advanced Spatial Analysis
  Torrens, P. M. and D. O'Sullivan (2000) “Cities, cells, and cellular automata: developing a research agenda for urban geocomputation”. In Proceedings of the Fifth Annual Conference on GeoComputation, Manchester, GeoComputation CD-ROM

 

 

Projects >>

Dynamic physics for built infrastructure

moving agents through space and time

Moving agents through space and time

modeling riots

Modeling riots

Validating agent-based models

Machine-learning behavioral geography

Accelerating agent-based models

megacity models

Megacity futures

Immersive modeling

Space-time GIS and analysis

A toolkit for measuring sprawl

space-time GIS

Modeling time, space, and behavior

simulating crowd behavior

Simulating crowd behavior