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1.3 User-Centric Social Multimedia Computing
The emergence of social multimedia has brought challenges as well as opportunities
to computing. On one hand, while multimedia content analysis still remains open, the
participatory property of social multimedia offers a new solution perspective. On the
other hand, most social multimedia services are user-oriented, making it important
to understand user demands from their interactions with social multimedia content.
Social multimedia computing is quite different from traditional and web mul-
timedia computing. Web multimedia computing is heavily related to the WEB1.0
environment, which is dominated by broadcast media developed by professional
designers for passive users. In traditional multimedia computing, the analysis focus
is the multimedia content, and the goal is content understanding and application,
e.g., media content analysis, semantic classification and annotation, and structured
median authoring. On the contrary, social multimedia computing has an obvious
user-centric
characteristic: (1) User is the basic data collection unit. Viewing each
user as a data sensor, social multimedia is constituted by what users see, listen,
think, feel, and speak. Moreover, user bridges multimedia network and social net-
work, contributing to most of the social interactions in social multimedia. (2) User is
the ultimate information service target. As discussed above, social multimedia ser-
vices are user-oriented and have a customized trend. Understanding the personalized
demands is critical to most social multimedia computing problems.
Therefore, in this topic, we introduce our recent work on social multimedia com-
puting from the user-centric perspective. Note that this is the first user-centric schema
for the social multimedia computing. Specifically, as shown in Fig.
1.4
, we address
three basic tasks in user-centric social multimedia computing as:
From User
: user-perceptive multimedia content analysis;
On User
: user modeling on social multimedia activity;
Fo r U s e r
: personalized multimedia services.
Fig. 1.4
User-centric social multimedia computing: from user, on user, for user
