Abstract Short Message Service (SMS) messages are short messages sent from one person
to another from their mobile phones. They represent a means of personal communication …

In this paper, we utilize tags in Twitter (the hashtags) as an indicator of events. We first study
the properties of hashtags for event detection. Based on several observations, we proposed …

Background Visual imagery plays a key role in health communication; however, there is little
understanding of what aspects of vaccine-related images make them effective …

In the current Web 2.0 era, the popularity of Web resources fluctuates ephemerally, based
on trends and social interest. As a result, content-based relevance signals are insufficient to …

While efforts have been made on bridging the semantic gap in image understanding, the in
situ understanding of social media images is arguably more important but has had less …

In this paper, quoting in e-mail communication and retweeting in Twitter message streams is
analysed as users' recontextualization practices which share formal features but serve …

Microblogging services such as Twitter and Plurk allow users to easily access and share
different types of social multimedia (eg images and videos) in the cyber world. However, the …

On Twitter, retweets function as a method of reporting speech and spreading the talk of other
users. We propose that changes to the interface and mechanisms of Twitter have led to the …

We propose a transition-based model for joint word segmentation, POS tagging and text
normalization. Different from previous methods, the model can be trained on standard text …

We address the problem of informal word recognition in Chinese microblogs. A key problem
is the lack of word delimiters in Chinese. We exploit this reliance as an opportunity …