Vom 9. bis zum 12. März 2022 findet die jährliche FOSSGIS Konferenz statt, die führende Konferenz für Freie und Open Source Software für Geoinformationssysteme und Open Data im deutschsprachigen Raum.
HeiGIT wird dabei am 09.03. um 16:30–16:50 Bühne 2 ONLINE mit einem Vortrag vertreten sein zum Thema:
“ohsome quality analyst (OQT): Die Qualität von OpenStreetMap Daten einschätzen”
Der [...]
Tag Archive 'data quality'
United Nations World Data Forum Blog on Healthcare Accessibility Map
Posted in Events, Press release, Services, Software on Dec 14th, 2021
In the context of the United Nations World Data Forum 2021 organised by the United Nations Statistics Division and UN member states a series of blogposts has been published by UNSTATS. Among them is one by Alexander Zipf about improving access to healthcare facilities through geoinformation and crowdsourcing. He introduces the Open Healthcare Access Map [...]
FOSS4G 2021 Videos with HeiGIT contributions online - OSM data quality and MapSwipe
Posted in Events, OSM, Services, Software, Teaching on Nov 14th, 2021
Recently videos with our contributions by HeiGIT to the FOSS4G conference were put online. Did you miss the event? Now you can watch whenever you like :-)
Benni by HeiGIT explains who to use the ohsome.org framework to develop an OSM Confidence Index to support humanitarian mapping
https://www.youtube.com/watch?v=DWkISL4qbME
FOSS4G 2021 Using the ohsome framework to develop an OSM [...]
Last week, the annual conference FOSS4G (Free and Open Source Software for Geospatial) has been taken place online. The conference is organized by The Open Source Geospatial Foundation (OSGeo) and attracts over 1000 developers, users, decision-makers and observers from a broad spectrum of organizations and fields of operation each year. HeiGIT and MapAction [...]
Analysing the Impact of Large Data Imports in OpenStreetMap
Posted in OSM, Publications, Research on Aug 6th, 2021
OpenStreetMap (OSM) is a global mapping project which generates free geographical information through a community of volunteers. OSM is used in a variety of applications and for research purposes. However, it is also possible to import external data sets to OpenStreetMap. The opinions about these data imports are divergent among researchers and contributors, and the [...]
OSM data quality analysis for different stages of the mapping process
Posted in OSM, Publications on Jun 23rd, 2021
Slums are an important operational area for humanitarian organisations: Because of provisional housing, poor sanitation and difficult socio-political circumstances offers of help from such organisations are important and often necessary. For such deployments, humanitarian actors rely heavily on Volunteered Geographic Information (VGI), as official maps and data are often incomplete. [...]
The ohsome quality analyst goes public on Github with new release 0.3.0
Posted in OSM, Services, Software, Uncategorized on May 19th, 2021
The ohsome quality analyst (short: OQT) has been introduced at the beginning of this year and today we are proud to announce two updates.
First, we released the new version 0.3.0 which includes new OSM layers and a brand new data quality report. Working on this release has been the first collaboration with MapAction [...]
Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions
Posted in Land use, Publications, Research on Apr 17th, 2021
Public urban green spaces are important for the urban quality of life. Still, comprehensive open data sets on urban green spaces are not available for most cities. As open and globally available data sets, the potential of Sentinel-2 satellite imagery and OpenStreetMap (OSM) data for urban green space mapping is high but limited due to [...]
The project “25 Mapathons“ goes into the next phase. Based on the experience of until today 17 OSM mapathons with German Red Cross (GRC) chapter and an extensive literature review on the success of mapathons, the “25 Mapathons” team has identified several points of possible improvement in the way how mapathons are conducted in general: [...]
The #ohsome quality analyst (short: OQT) has been online and accessible through its web-interface now for quite some weeks already (see the introductory blog post as a reference). The website is not the only access point to the OQT though. Therefore, the ohsome team at HeiGIT would like to give some insights to the additional [...]