The Ohsome API, developed at HeiGIT, is part of the ohsome OSM history analytics platform (and yes, it is pronounced like the word “awesome” ;-). It serves as the connection between the OpenStreetMap History Database (OSHDB) and possible frontends, such as the Ohsome Nepal Dashboard prototype. The communication with the Ohsome API works via HTTP GET and POST requests as [...]
Tag Archive 'data quality'
A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information
Posted in Publications on Apr 23rd, 2018
The growing use of crowdsourced geographic information (CGI) has prompted the employment of several methods for assessing information quality, which are aimed at addressing concerns on the lack of quality of the information provided by non‐experts. In a recently published work, we propose a taxonomy of methods for assessing the quality of CGI when no [...]
Preview of the ohsome Nepal dashboard
Posted in OSM, Services, Software, VGI Group on Mar 15th, 2018
The ohsome OpenStreetMap history analytics platform, which is currently developed at HeiGIT, will make OSM’s full-history data more easily accessible. We are pleased to announce that we are coming closer to reaching our objectives, hereby sharing a preview of the first ohsome web dashboard. Our dashboards will allow you to explore [...]
Introducing the ohsome OSM History Analytics Platform
Posted in OSM, Research, Services, Software, VGI Group on Feb 22nd, 2018
The big spatial data analytics team at HeiGIT is currently developing the ohsome OpenStreetMap history analytics platform. Our aim is to make OSM’s full-history data more easily accessible for various kinds of data analytics tasks on a global scale.
OpenStreetMap (OSM) is a freely available map of the world to which everyone may contribute geographic information. [...]
Enrichment of OpenStreetMap Data Completeness with Sidewalk Geometries for Wheelchair Routing
Posted in Publications on Feb 9th, 2018
Tailored routing and navigation services utilized by wheelchair users (such as provided by OpenRouteService.org ) require certain information about sidewalk geometries and their attributes to execute efficiently. Except some minor regions/cities, such detailed information is often not sufficiently present in current versions of crowdsourced mapping databases including OpenStreetMap. In a recent study (1) we aim [...]
Today Two free GIS Events @Heidelberg
Posted in Events on Feb 1st, 2018
Today you have the choice to select between two interesting GIS related events @Heidelberg with contributions by GIScience Group Heidelberg University:
Geobasierte Modelle. 14. Modellierungstag Rhein-Neckar am 1. Februar 2018 (in German, @Mathematikon HD, 14.00-18.00)
European Citizen Science Association Webinar on #citizenscience for monitoring urban landscape dynamics (in English, Online-Webinar, 16:30-17:30)
It’s your choice. Enjoy!
http://osmlanduse.org
http://ohsome.org
Open Position: Software Developer Geoinformation Technology , Heidelberg
Posted in Jobs on Jan 23rd, 2018
Open Position:
Software Developer (Web) Geoinformation Technology
(OSM)
Heidelberg Institute for Geoinformation Technology (HeiGIT) and GIScience Research Group
In the context of research projects at HeiGIT and the GIScience Research Group we offer the position of a Software Developer Geoinformation Technology in Heidelberg (full-time or part-time).
Depending on your experience the tasks are related to at least one of [...]
As our HeiGIT / GIScience team member Martin Raifer (tyr_asd) pointed out at his OSM diary, this weekend is the 10 year anniversary of OSM’s API version 0.5. He stresses the importance of this as “This is the version of the OSM-API that introduced (among other things) the version number on all OSM objects, making [...]
DFG Summer School “VGI”
Posted in Crowd Analyser, Events, OSM, VGI Group on Sep 20th, 2017
Last week, our colleagues Franz-Benjamin Mocnik and René Westerholt participated in a summer school of the DFG priority programme on “VGI”. GIScience Heidelberg is involved in that programme by two projects, one of which is dealing with data quality issues and another one that investigates the assessment of spatial assotiations in social media data. The [...]
Reducing stress by avoiding noise with ‘Quiet Routing’ in OpenRouteService
Posted in Crowd Analyser, OSM, Services, VGI Group on Jul 10th, 2017
Noise pollution is a growing problem in many urban environments, affecting citizens’ daily life. It can reduce citizens’ happiness, increase their stress, and even people them get sick if they are exposed to noise pollution for a long period of time. In recent studies we investigate the use of crowdsourced data to derive noise polluted [...]