In a network system, there inevitably be few connection failures at nodes, such as delay. Once failure occurs, the administrator must detect sources soon possible to maintain communication over network. Group testing is method for detecting nodes in networks using small number of measurements, provided that measurement matrix constructed appropriately. A promising constructing matrices given by...

The implementation into service of accelerometric health monitoring systems of mechanical power drives on helicopters has shown that the generation of false failure alarms is a critical issue. The paper presents a combined application of several multivariate statistical techniques and shows how a monitoring method which integrates these tools can be successfully exploited in order to improve th...

This paper studies performance and timing failure probability of time-shifted redundant circuits and path-/circuit-replica circuits. Measurement-based experiments using a fabricated test chip are performed. For an approximately similar false positive error probability for the path-replica and circuit-replica, the false negative error probability of the circuit-replica is approximately two order...

Web applications have become crucial components of our life. However, research studies claim that the experienced quality and reliability of Web applications is often poor or not satisfactory. Evaluation tools are expected to give an important contribution to the improvement of Web applications. Unfortunately, the functionalities offered by available (commercial and research) tools are often li...