Modeling checkpoint-based movement with the earth mover’s distance

Matt Duckham, Marc van Kreveld, Ross S. Purves, Bettina Speckmann, Yaguang Tao*, Kevin Verbeek, Jo Wood

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)

Abstract

Movement data comes in various forms, including trajectory data and checkpoint data. While trajectories give detailed information about the movement of individual entities, checkpoint data in its simplest form does not give identities, just counts at checkpoints. However, checkpoint data is of increasing interest since it is readily available due to privacy reasons and as a by-product of other data collection. In this paper we propose to use the Earth Mover’s Distance as a versatile tool to reconstruct individual movements or flow based on checkpoint counts at different times. We analyze the modeling possibilities and provide experiments that validate model predictions, based on coarse-grained aggregations of data about actual movements of couriers in London, UK. While we cannot expect to reconstruct precise individual movements from highly granular checkpoint data, the evaluation does show that the approach can generate meaningful estimates of object movements.

Original languageEnglish
Title of host publicationGeographic Information Science - 9th International Conference, GIScience 2016, Proceedings
PublisherSpringer
Pages225-239
Number of pages15
Volume9927 LNCS
ISBN (Print)9783319457376
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event9th International Conference on Geographic Information Science, GIScience 2016 - Montreal, Canada
Duration: 27 Sep 201630 Sep 2016
Conference number: 9

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9927 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Conference

Conference9th International Conference on Geographic Information Science, GIScience 2016
Abbreviated titleGIScience 2016
CountryCanada
CityMontreal
Period27/09/1630/09/16

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