Applying edge preservation filters for cost aggregation has been a leading technique in generating dense disparity maps. However, traditional approaches usually require intensive calculations, and their design parameters must be tuned different scenarios to obtain the best performance. This paper shows that simple texture-independent approach can achieve similar high The proposed algorithm is e...

The CPU cycles that are stolen to relay messages can significantly affect the performance of a multicomputer system. This degradation in performance in turn affects the overall cost-effectiveness of such a system. This paper compares the cost-effectiveness of four multicomputer architectures that have received a great deal of recent attention: the bidirectional straight line, the unidirectional...

Multihoming is increasingly being employed by large enterprises and data centers to extract good performance and reliability from their ISP connections. Multihomed end networks today can employ a variety of route control products to optimize their Internet access performance and reliability. However, little is known about the tangible benefits that such products can offer the mechanisms they em...

This paper attempts to answer the question, “To what extent is prefetching effective in hiding memory latency, and what is the minimal amount of hardware required to support prefetching?” We begin by providing a classification of the different kinds of prefetching, and reconciling the various common performance metrics to allow fair comparisons. We then put forward an analytical model that give...

Like many routing protocols, the Tor anonymity network has decentralized path selection, in clients locally and independently choose paths. As a result, network resources may be left idle, leaving the system in a suboptimal state. This is referred to as the price of anarchy, where agents acting in their own self interest can make poor decisions when viewed in a global context. In this paper we ...

OS virtualization and cloud computing have radically changed the way Internet services are deployed: enterprises share third-party datacenters, deploying existing applications with minimal changes. Recent measurements reveal a lack of traffic isolation capabilities within the datacenter with network performance exhibiting high variability. We advocate addressing this problem by allowing applica...

Health care expenditure in Ireland has reached 9.5% of GDP (2009 data). This figure is similar to the UK and is in line with most other European countries apart from France and the Netherlands which are higher at over 11%. In most western societies health spending is rising faster than economic growth, a trend that was first observed in the 1970s and has continued unchecked. The spending on hea...