We present a distributed efficiently amortizable CPU cost-function with no trap–door. The absence of a trap–door allows us to avoid needing to trust any party. Applications for such cost-functions are in distributed document popularity estimation, and metering of web advertising. None of the servers involved have any advantage over users in computing the cost function. The amortized token has a...

The European Commission supported IRMOS project is developing tools and techniques that allow realtime applications to be planned and executed on distributed Service Oriented Infrastructures (SOI) operated by third-party service providers. The exemplar applications within the project are all multimedia based and include support for interactive and collaborative film post-production, the use of ...

We present a novel Block-Adaptive Quantum Mechanics (BAQM) approach to interactive quantum chemistry. Although quantum chemistry models are known to be computationally demanding, we achieve interactive rates by focusing computational resources on the most active parts of the system. BAQM is based on a divide-and-conquer technique and constrains some nucleus positions and some electronic degrees...

One approach to reasoning about interactive behaviour is to assume that users of computer systems are rational, and that the behaviour of an interactive system results from the rational behaviour of the users together with the implemented behaviour of the devices that make up the total system. These assumptions can be expressed as a coherent set of principles. This approach enables an analyst t...

This chapter focuses on how to use assistive technology to help children with disabilities. The real situation is that many classes do not have enough resources to buy much equipment for children with different needs. We will introduce how to use low-cost devices to make a simple interactive whiteboard, a low-cost AirMouse and interactive feedback for rehabilitation treatment. Some research has...

Despite much research in the field of mobile media, delivery of real time interactive video over noisy wireless channels remains a challenging problem. A major limitation in wireless networks is that mobile users must rely on a battery with a limited supply of energy. Effectively utilizing this energy is a key consideration in the design of wireless networks. In this paper, we jointly consider ...

One approach to reasoning about interactive behaviour is to assume that users of computer systems are rational, and that the behaviour of an interactive system results from the rational behaviour of the users together with the implemented behaviour of the devices that make up the total system. These assumptions can be expressed as a coherent set of principles. This approach enables an analyst t...

An informative and comprehensive overview of the state-of-the-art in natural language generation (NLG) for interactive systems, this guide introduces graduate students and new researchers to the field of natural language processing and artificial intelligence, while inspiring them with ideas for future research. Detailing the techniques and challenges of NLG for interactive applications, it foc...

We consider an interactive browsing environment for 3D scenes, which allows for the dynamic optimization of selected client views by distributing available transmission resources between geometry and texture components. Texture information is available at a server in the form of scalably compressed images, corresponding to a multitude of original image views. Surface geometry is also available ...

Interactive effects of multiple environmental factors on metapopulation dynamics have received scant attention. We designed a laboratory study to test hypotheses regarding interactive effects of factors affecting the metapopulation dynamics of red flour beetle, Tribolium castaneum. Within a four-patch landscape we modified resource level (constant and diminishing), patch connectivity (high and ...