In video processing, average data rates are often significantly lower than a given maximum possible rate. Consequently, VLSI systems that are capable of processing video streams at the maximum data rates specified in video standards can be excessively dissipative at low data rates. Such inefficiencies are particularly pronounced in heavily pipelined designs, in which registers account for the b...

An accumulator is a succinct aggregate of a set of values where it is possible to issue short membership proofs for each accumulated value. A party in possession of such a membership proof can then demonstrate that the value is included in the set. In this paper, we preset the first lattice-based accumulator scheme that issues compact membership proofs. The security of our scheme is based on th...

Countering claims that recency effects observed at different time scales arise from a common forgetting process, Davelaar et al. (2005) presented a number of experimental dissociations between shortand long-term recency. They used these dissociations to argue that separate mechanisms underlie shortand long-term recency. Here we show that the temporal context model (TCM), which assumes that both...

This work introduces the most efficient universal accumulator known today. For the first time, we have an accumulator which does not depend on hidden order groups, does not require any exponentiations in the target group associated with the pairing function, and only requires two pairings to verify a proof-of-knowledge of a witness. We present implementations of our accumulator and another rece...

Rounded Arithmetic is the traditional way of presenting previous year accounts. The method of showing rounded sums of vectors in which the arithmetic still “adds up” and the errors in the display of the components are bounded by twice the maximum rounding error have been well known for at least 30 years in spite of there being little or nothing in the literature and no attempt to implement this...

an experiment featuring waterhammer in viscoelastic pipes is presented in which the effects of pipe-wall viscoelasticity on waterhammer pressures are investigated. a large-scale pipeline apparatus made of polyvinyl chloride (pvc) at deltares, delft, the netherlands, has been used to carry out waterhammer experiments. tests have been conducted in a reservoir-pipeline-valve system consisting of a...