Social Interactions over Location-Aware Multimedia Systems

Advancements in positioning techniques and mobile communications have enabled location-based services with a broad range of location-aware multimedia applications. Accordingly, various social multimedia data, relevant to different aspects of users’ daily life, is aggregated over time on the Internet. Such locationaware multimedia data contains rich context of users and has two implications: individual user interest and geographic-social behaviors. Exploiting these multimedia landscapes helps mine personal preferences, geographic interests and social connections, and brings the opportunities of discovering more interesting topics. In this chapter, we first introduce some examples of location-aware multimedia data and social interaction data. Then, we report some latest methods related to context detection and location-aware multimedia applications. We further present some analysis of geo-social data. Finally, we point out the trend in the integration of social and content delivery networks. In brief, this chapter delivers a picture of emerging geographic-awaremultimedia technologies and applications, with location information as a clue. 1 Motivation and Introduction Conventionally, content sharing websites [1] and online social networks [2] are separately deployed. Users visit content sharing websites to upload, view, and share Yi Yu School of Computing, National University of Singapore, Singapore. e-mail: [email protected] Roger Zimmermann School of Computing, National University of Singapore, Singapore. e-mail: [email protected] Suhua Tang Graduate School of Informatics and Engineering, The University of Electro-Communications, Japan. e-mail: [email protected]