There are many applications available for personal computers and mobile devices that facilitate users in meeting potential partners. There is, however, a risk associated with the level of anonymity on using instant message applications, because there exists the potential for predators to attract and lure vulnerable users. Today Instant Messaging within a Virtual Universe (IMVU) combines custom ...

Facilitated by the widespread adoption of smartphones, applications (apps) on smartphones such as WeChat and WhatsApp have seen rapid and explosive growth. These apps are generally referred to as second-generation mobile instant messaging (SMIM) services. Unlike first-generation mobile instant messaging (FMIM) services (e.g. Short Message Service), SMIM services typically support multimedia con...

Community related applications such as dating platforms, instant messengers, or file-sharing tools enjoy a great popularity in the Internet. Motivated by this success, community-awareness also has become a hot topic in the mobile world. Despite considerable efforts, however, mobile solutions still cannot compete with their Internet counterparts. A key feature of community-aware applications is ...

We present the design, prototype implementation, and evaluation of CenceMe, a personal sensing system that enables members of social networks to share their sensing presence with their buddies in a secure manner. Sensing presence captures a user’s status in terms of his activity (e.g., sitting, walking, meeting friends), disposition (e.g., happy, sad, doing OK), habits (e.g., at the gym, coffee...

Quality tutoring can be one of the building blocks in the bridges over many of the various “divides” digital, economic, social and educational. Appalling recent statistics have shown that only 7% of South Africa's first year university students have sufficient mathematics knowledge and background to cope with university work. C3TO (Chatter Call Centre/Tutoring Online) is an architecture which f...

In semi-nomadic professions such as medicine, practitioners move through office buildings carrying personal computing and communication devices. These practitioners make use of fixed computing and communication resources in the rooms they visit. Organizations have strong financial incentives to help their mobile professionals find each other, communicate effectively, and make efficient use of t...

As smartphones become more and more popular, uses of social media on mobile devices have grown explosively. Previous studies have investigated usage behaviors of social networks in various ways, but few of them emphasized the activities on smartphones and social applications. In this study, we develop a research framework based on the network externalities and cognitive absorption to explain us...

There are many applications available for personal computers and mobile devices that facilitate users in meeting potential partners. There is, however, a risk associated with the level of anonymity on using instant message applications, because there exists the potential for predators to attract and lure vulnerable users. Today Instant Messaging within a Virtual Universe (IMVU) combines custom ...

Common traits of mobile computing are time critical tasks and interruptions that require multitasking. Essential for success of a mobile web task is quick and accurate performance. To facilitate performance in response to interruptions, an understanding of factors that influence multitashng during mobile computing is required. This study examines the effect of anticipation and origin (i.e. inst...