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An algorithm for empirically informed random trajectory generation between two endpoints


Technitis, Georgios; Weibel, Robert; Kranstauber, Bart; Safi, Kamran (2016). An algorithm for empirically informed random trajectory generation between two endpoints. In: GIScience 2016: Ninth International Conference on Geographic Information Science, Montreal (Canada), 27 September 2016 - 30 September 2016, online.

Abstract

We present a method to create empirically informed, and thus realistic, random trajectories between two endpoints. The method used relies on empirical distribution functions, which define a dynamic drift expressed in a stepwise joint probability surface. We create random discrete time-step trajectories that connect spatiotemporal points while maintaining a predefined geometry, often based on real observed trajectories. The resulting trajectories have multiple uses, such as to generate null models for hypotheses testing, to serve as a basis for resource selection models, through the integration of spatial context and to quantify space use intensity.

Abstract

We present a method to create empirically informed, and thus realistic, random trajectories between two endpoints. The method used relies on empirical distribution functions, which define a dynamic drift expressed in a stepwise joint probability surface. We create random discrete time-step trajectories that connect spatiotemporal points while maintaining a predefined geometry, often based on real observed trajectories. The resulting trajectories have multiple uses, such as to generate null models for hypotheses testing, to serve as a basis for resource selection models, through the integration of spatial context and to quantify space use intensity.

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Additional indexing

Item Type:Conference or Workshop Item (Speech), not_refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Event End Date:30 September 2016
Deposited On:11 Jan 2017 16:08
Last Modified:02 Feb 2018 11:27
Publisher:s.n.
OA Status:Green
Related URLs:https://sites.grenadine.co/sites/giscience2016/en/Montreal/schedule/190/An+Algorithm+for+Empirically+Informed+Random+Trajectory+Generation+Between+Two+Endpoints

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