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In this paper, we demonstrate the use of context-profiling for making access control decisions in mobile devices. In particular, we discuss the device locking use case, where the device locking timeout and unlocking method are dynamically decided based on the perceived safety of current context.
Nowadays service creation and consumption is an ordinary, everyday task. Although services are commonly associated to a server -in a fixed machine on the Web- at present services may also be offered from portable devices (i.e., PDAs, smartphones, etc.). Both service provider's and users' mobility requires a highly dynamic service usage, thus bringing about the necessity to develop and use services...
In the following we will describe a novel method for decoding linear barcodes from blurry camera images. Our goal was to develop a algorithm that can be used on mobile devices to recognize product numbers from EAN or UPC barcodes.
Mobile phones are widely recognized as a potentially transformative technology platform for developing nations. However, for designers and programmers in the developed world to create viable applications for mobile phones involves first identifying and communicating user requirements for diverse users. We define diverse users as those from a substantively different cultural context than that in which...
We propose a new style user interface for browsing and interacting with real-time maps representing a large number of moving objects on mobile devices. The real-time maps show present locations of moving objects such as trains, cars and people on the conventional static maps composed of static geospatial objects such as roads, buildings and rivers. The emergence of the real-time maps can change the...
The biggest change in the mobile market in the coming years will not happen at the top consumer level where high end mobile devices will be equipped with the latest multimedia tools but at the untapped market of about one billion people in the mid segment of the world economic pyramid whose potential to become profitable telecom customers has been underestimated and misunderstood. In the Rural Living...
The traffic volume of multimedia content delivery to mobile phones is increasing at high pace. Mobile applications that receive pushed multimedia content have an important role in this evolution, and put requirements on integration concepts for reliable and optimized push data delivery mechanisms. This paper provides insights in prototyping experiences of developing a unicast-broadcast end-to-end...
In this work, the authors design and prototype PassItOn, a fully distributed opportunistic messaging system. Our goal is to build up a proof-of-concept platform on real mobile devices, and thus show the feasibility and potentials of utilizing human movements for dissemination applications. Meanwhile, we seek to shed lights on the design, implementation and deployment issues in building such systems,...
Mobile cell device, as small-screen, limited computing ability and capacity of storage, can not browse normal web page successfully. On the other hand, it is necessary to tailor Web page for the purpose of personalized and customizable WEB access mode, and also to cut down surfing cost for mobile consumers. To meet those two side requirements, a new web page adaptation scheme is proposed in this paper:...
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