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Tag Archive 'data quality'

Disaster mapping activations that are supported by many volunteers with various levels of experience raise questions related to the quality of the provided Volunteered Geographic Information. Learning about the data quality that can be expected in a disaster activation helps to evaluate the quality and fitness for purpose of the OSM data.
At the ISCRAM 2018 [...]

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The Ohsome Nepal Dashboard has new features to enhance its usability and functionality. The user can now easily select administrative areas of interest through a new map interface. Different administrative levels can be selected by zooming in and out and afterwards just clicking or tapping on that specific region. This convenience feature makes it much faster [...]

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Recently we introduced the ohsome platform for OSM History Analytics. Now we want to give you a high-level overview of the ohsome platform and the components it consists of.
Ohsome API
The ohsome platform is based on a three-layers API architecture, where the flexibility, as well as the usage-complexity are increasing going from the top to [...]

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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 [...]

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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 [...]

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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 [...]

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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. [...]

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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 [...]

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Today Two free GIS Events @Heidelberg

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

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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 [...]

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