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A disease propagating in a community or a rumor spreading in a social network can be described by a contact network whose nodes are persons or centers of contagion and links heterogeneous relations among them. Suppose that a disease or a rumor originating from a single source among a set of suspects spreads in a network, how to locate this disease/rumor source? This problem is crucial and challenging...
In wireless cellular system, due to the convergence of user behavior, there usually exists some typical scenarios which exhibit different traffic patterns, e.g. stadium, campus and central business district (CBD). Accurate traffic scenario recognition and analysis will lead to more efficient resource management and better QoS (quality-of-service) provision. In this paper, with the idea of social network...
Understanding the spatial traffic patterns of wireless cellular system could facilitate the performance analysis and system design. In this paper, a novel method based on base stations social network (BSSN) is proposed for the prediction of spatial traffic in wireless cellular system. Firstly a BSSN, which can describe the spatial traffic relationship between base stations (BSs), is established with...
Entertainment industry growing very fast, as an essential pillar, actors become more and more influential. An effective influence model will help investors a lot. In this paper, we propose SPIA influence model, considering actors' both social influence and professional influence. In this way we can choose the most influential actors with no obvious shortcomings. We take Sina Weibo, the largest micro-blogging...
With the advancement of enterprise information system, services-oriented business ecosystem (SOBE) has became an important pattern for the organization and management of the massive business services. At the same time, Internet of Service (IOS) provides a business model in which service vendors and consumers can interactive with each other via the Internet. This paradigm makes it possible that services...
Sina-Microblog, the earliest and biggest microblogging service in China, has become one of the most popular media in information propagation. In order to gain insights into the topological and information diffusing characteristics of microblogging network in China, we crawled Sina-Microblog for about 3 months and obtain the trace of its topology and topics. Compared with other online social networks,...
Today a wide range of Web 2.0 applications (such as Facebook, Twitter, Blogs, RSS, Podcasts and Wikis) are giving new challenges and opportunities in teaching and learning. The work described here concerns a pilot study to investigate the acceptability and effectiveness of using web 2.0 as an aid to learning. The work focuses on a university course on academic writing skills. The role of Web 2.0 applications...
Mobile social networks are gaining popularity with the pervasive use of mobile phones and other handheld devices. In these networks, users maintain friendship links, exchange short messages and share content with one another. In this paper, we study the user behaviors in mobile messaging and friendship linking using the data collected from a large mobile social network service known as myGamma (m...
Word-of-mouth communication has been shown to play a key role in a variety of environments such as viral marketing and virus spreading. A family of algorithms, generally known as information spreading algorithms or word-of-mouth algorithms, has been developed to characterize such behavior. However, they have limitations, including the inability to: (1) capture when the communications or contacts take...
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