ohsome Comprehensive OpenStreetMap History Data Analyses - for and - - PowerPoint PPT Presentation

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ohsome Comprehensive OpenStreetMap History Data Analyses - for and - - PowerPoint PPT Presentation

Oct 30, 2023 102 likes •359 views

ohsome Comprehensive OpenStreetMap History Data Analyses - for and with the OSM community Michael Auer, Melanie Eckle, Sascha Fendrich, Fabian Kowatsch, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf ohsome ? 1.

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  • hsome

Comprehensive OpenStreetMap History Data Analyses

  • for and with the OSM community

Michael Auer, Melanie Eckle, Sascha Fendrich, Fabian Kowatsch, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf

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  • hsome ?
  • 1. OhSoMe: OpenStreetMap
  • 2. OHsome: OpenStreetMap History (something)
  • 3. Ohsome: sounds just „awesome“

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Workshop NEXT SESSION! Exploring OSM's history using the "ohsome" data analysis platform 14:00h S.1.5

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Dis isas aster er and and humanit humanitar arian an mana management gement Big ig Spa patial ial Data a Anal nalytics ics

  • hsome
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OSM History Data Analysis

  • What can we learn from the History?
  • Development of the data
  • Development of the users
  • Development of spatial/thematic

(sub-)communities

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data user time  DATA QUALITY  COMMUNITY DYNAMICS

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OSM History Data Analysis

  • The Challenge?
  • Make the whole data treasure available to the public
  • Queries of arbitrary temporal and spatial resolution
  • No pre-filtering / no clean-up
  • BIG DATA
  • High performance (parallel and distributed)
  • Flexible (run it on local PC or on computing cluster)
  • Usability (Easy to use for different target groups)
  • Different API Levels

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Examples: Data Quality

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Auer, M., Eckle, M, Fendrich, S., Griesbaum, L., Kowatsch, F., Marx, S., Raifer, M., Schott, M., Troilo,R. & Zipf, A. (2018):

Towards Using the Potential of OpenStreetMap History for Disaster Activation Monitoring

Proceedings of the 15th ISCRAM Conference – Rochester, NY, USA May 2018

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Examples: Data Quality

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Auer et al. 2018

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Examples: Data Quality

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Auer et al. 2018

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Examples: Data Quality

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Auer et al. 2018

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Commnunity Dynamics

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Examples: Community Dynamics

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Examples: Community Dynamics

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Can I use it?

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  • hsome API

Flexibility Usability OSHDB API OSHDB*

* OSHDB = OpenStreetmap History Database

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Can I use it?

  • OSHDB API: Current version 0.4 available on Github

https://github.com/giscience/oshdb

  • ohsome API: https://api.ohsome.org

(global coverage coming soon!)

  • KLL Nepal Dashboard

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Workshop NOW! 14:00h S.1.5

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OSHDB API

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  • hsome API

https://api.ohsome.org

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Web API documentation with example requests

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Webapp using ohsome API: Nepal-Dashboard

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https://ohsome.org/apps/kll-dashboard-preview/

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Webapp using ohsome API: Nepal-Dashboard

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The end

Thank you for your attention!

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Workshop NOW! Exploring OSM's history using the "ohsome" data analysis platform 14:00h S.1.5

info@heigit.org

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Examples: Community Dynamics

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Examples: Community Dynamics

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OSM

id = 1234 type = WAY timestamp = n -1 version = 2 tags = [building=yes, addr:housenumber=42] nodes = [3, 2, 1]

Zoom 0 Zoom 1 Zoom 2

timestamp = n version = 1 tags = [building=yes] nodes = [3, 2, 1]

. . .

OSM OSH OSH OSH OSH OSH OSH OSH OSH OSH OSH

OSH

Id = 1234 type = WAY

Grid-Partitionierung der Welt in gleich große Zellen OSHWayGridCell enthält OSHEntity Objekte in einem räumlichen Index OSHEntity enthält OSMEntity Objekte

OSH
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Keytables 0 = building 1 = highway 2 = addr:housenumber ...

OSH OSH OSH OSH OSM

id = 1234 type = WAY timestamp = n -1 version = 2 tags = [1, 5] nodes = [3, 2, 1]

Zoom 0 Zoom 1 Zoom 2

timestamp = n version = 1 tags = [1] nodes = [3, 2, 1]

OSM OSH OSH OSH OSH OSH OSH

1 = [0,6] 5 = [2,4] 1 = 900 2 = 1000 3 = 1001 member ids = tag ids =

. . .

OSH

Id = 1234 type = WAY

members OSHEntity Valuetables (0, 0) = yes (0, 1) = residential (2, 0) = 2 ...

OSH

Grid-Partitionierung der Welt in gleich große Zellen OSHWayGridCell enthält OSHEntity Objekte in einem räumlichen Index OSHEntity enthält OSMEntity Objekte