Emojis as indicators of spatial-temporal-thematic developments in geo-social media

Geo-Social Media Analytics

Crime Mapping through Geo-Spatial Social Media Activity

The presence of crime is one of the major challenges for societies all over the World, especially in metropolitan areas. As indicated by prior research, Information Systems can contribute greatly to cope with the complex factors that influence the emergence and location of delinquencies. In this work, we combine commonly used approaches of static environmental characteristics with Social Media....

Thematic and Social Indicators for Flickr Groups

We study here Flickr groups in order to see whether they are actual communities or rather essentially thematic clusters. We describe a methodological framework for the analysis of networks of group members, measuring social density and tag dispersion among groups and give some results on a sample of 450 groups having around 500 members each.

Spatial and Temporal Word Spectrum of Social Media

We assume that different users from different geolocations will post different microblog messages for their local issues on social networks. Based on this assumption, we calculate unique features of social media for different geolocations in different time periods. The outcome of this calculation is called a SpatialTemporal Word Spectrum (STWS) model which is a linguistic fingerprint of a geolo...

Map Translation Using Geo-tagged Social Media

This paper discusses the problem of map translation, of servicing spatial entities in multiple languages. Existing work on entity translation harvests translation evidence from text resources, not considering spatial locality in translation. In contrast, we mine geo-tagged sources for multilingual tags to improve recall, and consider spatial properties of tags for translation to improve precisi...