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Tag Archive 'Twitter'

The Special Issue: Human Dynamics in the Mobile and Big Data Era of the International Journal of Geographical Information Science (IJGIS), Volume 30, Issue 9 is now available online on Taylor & Francis Online.
This issue includes our article:
Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks
Enrico Steiger, Bernd Resch [...]

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The topic of the “Akademische Mittagspause” (a kind of open brown bag series for the public) at Heidelberg University is this semester is “Do you speak Math?“. In total more then 60 different 15min presentations (+ 15 in discussion) are given in the “Peterskirche”, Plöck 70, 69117 Heidelberg on a daily basis Monday to [...]

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LINKing and analyzing Volunteered Geographic Information (VGI) across different platforms
Pre Conference Workshop at 19th AGILE International Conference on Geographic Information Science 2016. Helsinki, June 14th 2016
Deadline for Call for Short Paper (AGILE short paper format): April 25th 2016
The number of Volunteered Geographic Information (VGI) and social media platforms is continuously growing, providing massive datasets [...]

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today Enrico Steiger successfully defended his PhD thesis about “Explorative Spatial and Temporal Human Mobility Analysis from User-Generated Data” at GIScience Heidelberg University.

The massive amount of pervasive, user-generated data creates new possibilities to discover and utilize geographic information. Tied in with this novel role of actively participating users, is a growing research challenge where the [...]

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Recently an Advanced Systematic Literature Review on Spatiotemporal Analyses of Twitter Data has been conducted and the results have been published online as journal article. This article presents a systematic literature review on the state of research concerning methodologies, applications and use cases of Twitter as a Location-Based Social Network.
The proposed systematic literature review method [...]

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A Study on the Twitter usage in the River Elbe Flood of June 2013
In recent years, social media emerged as a potential resource to improve the management of crisis situations such as disasters triggered by natural hazards. Although there is a growing research body concerned with the analysis of the usage of social media [...]

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In contrast to photo-based VGI (e.g. Flickr) the correlation between the place where an information has been created and what the information is about is less intuitive for text-based VGI. In order to gain more insight into the relationship between text information generated in mobile contexts (e.g. via smartphones) and their recorded location, research has [...]

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Not just LiDAR sensors, but also social media sources produce point clouds. We compiled two new visualisations showing spatiotemporal Twitter Tweet locations.
One of them is centered at Maracanã stadium during the football world cup 2014. The point cloud allows seeing various games that appear in the form of pronounced discs. In the centre of these [...]

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The growing number of mobile devices equipped with GPS sensors having broadband internet access, allow users to actively participate and create content through mobile applications and location based services. Whether users are uploading geotagged photos via Flickr or Instagram, checking in at a venue with Foursquare or commenting on a local event via [...]

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