One of the most crucial tasks in the design of fault-tolerant computers is the validation of the builtin error detection and handling mechanisms. Predesign validation techniques, like performability modelling and analysis, often require such information as exact failure rates, which is usually unavailable for the user. Moreover, the majority of computer failures originate from transient faults,...

in descriptive statistics, there are two computational algorithms for determining the variance s2, of a set of observations : algorithm 1: s2= - , algorithm 2: s2= , where . it is interesting to discuss, which of the above formulas is numerically more trustworthy in machine numbers sets. i this paper, based on total effect of rounding error, we prove that the second algorithm is better than ...

medicine had never been error free. medical society has responsibility to reduce the rate of medical errors and should respect to people and patients rights in the case of error occurrence to maintain their trust. waiver of cause of medical errors, what is of importance is recognizing the ethical duty of physician toward her patient in the case of error commitment. in this paper at the first, t...

A significant issue in fault injection experiments is that the injected faults are representative of software faults observed in the field. Another important issue is the time used, as we want experiments to be conducted without excessive time spent waiting for the consequences of a fault. An approach to accelerate the failure process would be to inject errors instead of faults, but this would ...

In recent years single-neplhron filtration rate lhas been measured extensively with micropuncture teclhniques. The values obtained in our own studies, as well as those reported by otlhers, reveal an impressive (legree of scatter. Some of the variation can be attributed to differences in the animals and in their physiologic state. Nevertlheless, values in the same animal in a constant pllysiolog...

Appropriate water injection volume is the most basic parameter required to maintain stable formation pressure and ensure development effect of flooding in oilfields. However, determination appropriate has always been a major problem oilfield management. Based on Grey relational algorithm, this paper determines optimal connected injection-production well group through study dynamic relationship ...

Proppant transport in underground fractures plays a key role mitigating sand screen-out and enhancing the stimulated production for hydraulic fracturing. The effects of field pumping schedules, however, are not fully studied. We investigate effect slickwater-alternate-slurry injection on proppant at field-practical scales. A new hybrid approach is proposed to directly connect experimental studi...

The software engineering field has a long history of classifying software failure causes. Understanding them is paramount for fault injection, focusing testing efforts or reliability prediction. Since software fails in manifold complex ways, a broad range of software failure cause models is meanwhile published in dependability literature. We present the results of a meta-study that classifies p...

The instruction decoder is one of the most complex and least regular logic structures in a modern processor that attempts to process multiple variable-length CISC instructions per cycle. This structure consumes a significant amount of area and is heavily utilized, making it vulnerable to logic soft errors. This paper analyzes a parallel decoder using gate-level modeling and statistical fault in...

While weight noise injection during training has been adopted in attaining fault tolerant neural networks (NNs), theoretical and empirical studies on the online algorithms developed based on these strategies have yet to be complete. In this paper, we present results on two important aspects in online learning algorithms based on combining weight noise injection and weight decay. Through intensi...