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effectively integrate heterogenous interactions and cross-network activities remains
further investigation.
Unified theoretical framework study.
Social multimedia computing is still in its
primary stage, where most solutions are implementation-oriented or even ad-hoc. It
is a promising research line to refer to classical theoretical work from information
retrieval, multimedia analysis and social network analysis, to develop the theoretical
framework for social multimedia computing.
6.2 The Prospects
Throughout the topic, we have interpreted the user-centric characteristics and con-
ducted our researches on two claims: (1) User is the basic data collection unit; (2)
User is the ultimate information service target. We end this topic with two more
claims on the role of user in future social multimedia computing schema.
User connects cyber to the physical worlds.
As an emerging cross-disciplinary
research area, Cyber-Physical-Social (CPS) computing is attracting attention world-
wide, which features a combination of computational, physical, and social elements.
The user-centric characteristic actually provides a novel perspective to CPS com-
puting. As shown in Fig.
6.1
, user interacts with each other to form the social space,
which bridges between cyber and physical spaces. With event being the main focus
of CPS computing, users' interactions with events in both physical and cyber spaces
constitute the basic unit in CPS computing. Figure
6.2
illustrates an example of user-
centric CPS computing on event modeling and tracking of “Syrian Revolution.” We
can see that representative multimodality data from different spaces are extracted
and associated in cubic coordinate along the unique timeline. At each timestamp,
cross-media information fromphysical and cyber spaces is associated by the involved
users and the social interactions between users.
Fig. 6.1
CPS computing in user-centric view
