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Reality mining in urban space
Semi-supervised concept detection by learning the structure of similarity graphs
Social Event Detection at MediaEval 2012: Challenges, Dataset and Evaluation
CERTH @ MediaEval 2012 Social Event Detection Task
SocialSensor: Surfacing real-time trends and insights from multiple social networks
Cluster-based photo browsing and tagging on the go
An empirical study on the combination of SURF features with VLAD vectors for image search
" Making sense of it all" an attempt to aid journalists in analysing and filtering user generated content