Internet based information technology has provided the paradigm shift from Pareto principle to long tail phenomenon. However, the advent of small size mobile devices with higher search costs raises a negative question on this paradigm shift. The aim of this study is investigating the negative impact of mobile devices on niche product consumption. We collect 10 million user-device level transact...

We demonstrate a fiber optic surface plasmon resonance (SPR) biosensor based on smart phone platforms. The light-weight optical components and sensing element are connected by optical fibers on a phone case. This SPR adaptor can be conveniently installed or removed from smart phones. The measurement, control and reference channels are illuminated by the light entering the lead-in fibers from th...

Smart phones are now being used to store users’ identities and sensitive information/data. Therefore, it is important to authenticate legitimate users of a smart phone and to block imposters. In this paper, we demonstrate that keystroke dynamics of a smart phone user can be translated into a viable features’ set for accurate user identification. To this end, we collect and analyze keystroke dat...

Smart phones are increasingly being equipped with operating systems that compare in complexity with those on desktop computers. This trend makes smart phone operating systems vulnerable to many of the same threats as desktop operating systems. This paper examines the threat posed by rootkits to smart phones. Rootkits are malware that stealthily achieve their goals by modifying operating system ...

An appcessory (app + accessory) is a smart phone accessory that is combined with a specially written app to perform a useful function. An example is a toy helicopter controlled by a smart phone app: the full value proposition involves both new hardware outside the phone and new software running inside the phone. Like the smart phone itself and like a PC, the appcessory hardware is a platform: i...

High quality image transmission through smart devices requires high transmission rate, throughput and low Bit Error Rate (BER). At the same time, energy efficiency is always the top issue for the battery-based smart devices such as smart phone, iPad, etc. In this paper, an adaptive Forward Error Correction (FEC) coding and cooperative relayed image transmission system is proposed, through which...

Sharing emergency or disaster information in a timely manner is very important to people's life. With more and more people carrying a smart phone on daily basis, an emergency and disaster information sharing system accessible to smart phone users is necessary and could be very useful. This project is to construct a disaster and emergency information website that allows smart phone users to uplo...

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