We present a system for Internet communication that enhances traditional text-based chatting with real-time analysis and synthesis of the chat parties’ facial expressions. It is composed of three main modules: a real-time facial expression analysis component, a 3D agent with facial expression synthesis and text-to-speech capabilities – a talking head, and a communication module. So far we have ...

Recently, malware attacks have become more serious over the Internet by e-mail, denial of service (DoS) or distributed denial of service (DDoS). The Botnets have become a significant part of the Internet malware attacks. The traditional botnets include three parts – botmaster, command and control (C&C) servers and bots. The C&C servers receive commands from botmaster and control the distributio...

This exploratory study examined 51 participants convicted of an Internet-initiated sex offense in which they attempted to entice an adolescent into a sexual relationship using an Internet chat room. All participants were convicted of a sex offense and subject to an evaluation as a part of sentencing requirements in Colorado. Clinical and behavioral data were obtained from each subject's offense...

Most related works addressing cognitive relaying networks focus on the impact of the interference constraint imposed by the primary receivers on the performance of the secondary network, while neglecting the interference coming from the primary transmitters. In this paper, we assess the outage performance of a cognitive relaying network composed by a source communicating with a destination unde...

Scholars have argued that the Internet could bring about the realization of an electronic global village, with no race, gender, infirmities, or the social problems that often accompany these physical indicators of difference. In this study, we explored this issue by conducting content and discourse analyses of online conversations about race and ethnicity in teen chat rooms. A key focus of our ...

Contactless technology is widely used in security sensitive applications, including identification, payment and access-control systems. Near Field Communication (NFC) is a short-range contactless technology allowing mobile devices to act primarily as either a reader or a token. Relay attacks exploit the assumption that a contactless token within communication range is in close proximity, by pla...

BACKGROUND Routine Human Immunodeficiency Virus (HIV) testing is a CDC recommendation. Little is known about health information technology (HIT) use and HIV testing. PURPOSE To assess the relationship between HIT use and HIV screening and determine whether self-perceived HIV risk modifies this association. METHODS Data from the National Health Interview Survey were analyzed. The survey resp...

In this paper, we investigate simultaneous wireless power transfer and secure multicasting via cooperative decode-and-forward (DF) relays in the presence of multiple energy receivers and eavesdroppers. Two scenarios are considered under a total power budget: maximizing the minimum harvested energy among the energy receivers under a multicast secrecy rate constraint; and maximizing the multicast...