Encyclopedia of Structural Health Monitoring. Edited by Christian Boller, Fu-Kuo Chang and Yozo Fujino  2009 John Wiley & Sons, Ltd. ISBN: 978-0-470-05822-0. of possible failure modes, the effects of which on observable (sensor) data are often poorly defined. To compound this, examples of abnormal behavior in high-integrity systems are few and far between; usually, there are insufficient examp...

conclusions it was noted that a relatively high prevalence of growth failure was observed in the study sample. for minimizing the impact of significant risk factors on growth failure, the early detection of growth failure and its risk indicators is of great importance. in addition, when the focus of the analysis is on the different nested sources of variability and the data has a hierarchical s...

This paper presents a new Fast Kurtogram Method in the time-frequency domain using novel types of statistical features instead of the kurtosis. For this study, the problem of four classes for Bearing Fault Detection is investigated using various statistical features. This research is conducted in four stages. At first, the stability of each feature for each fault mode is investigated. Then, res...

Traditional spectral-based methods such as PCA are popular for anomaly detection in a variety of problems and domains. However, if data includes tensor (multiway) structure (e.g. space-time-measurements), some meaningful anomalies may remain invisible with these methods. Although tensor-based anomaly detection (TAD) has been applied within a variety of disciplines over the last twenty years, it...

One important feature of the Stream Control Transmission Protocol (SCTP) is its network failure detection and recovery mechanism provided by direct support of multihoming. This mechanism is conservative (and rightfully so), but unfortunately does not fully exploit SCTP’s multihoming capability to maintain seamless communication between the endpoints. We decouple the failure detection from the r...

Adaptive failure detection requires that failure detectors can dynamically adjust the detecting quality according to the variations of applications and the load of the network. Because of the instability of the network, failure detectors without adaptive mechanism can not meet the requirements of QoS of applications all the time. Detection speed and accuracy is the crux of the failure detector....

Application-layer overlay networks have been proposed as an alternative method to overcome IP-layer path anomalies and provide users with improved routing services. Running at the application layer, overlay networks usually rely on probing mechanisms for IP-path performance monitoring and failure detection. Their service performance is jointly determined by their topology, parameters of probing...

Failure detectors are fundamental building blocks in distributed systems. Multi-node failure detectors, where the detector is tasked with monitoring N other nodes, play a critical role in overlay networks and peer-to-peer systems. In such networks, failures need to be detected quickly and with low overhead. Achieving these properties simultaneously poses a difficult tradeoff between detection l...