This paper presents a concept and experimental results for a novel confidence metric for speaker identification (SID). The concept is based on three major audio components: duration, signal-to-noise ratio, and model quality. This concept has been successfully applied to two benchmark closed-set SID systems which demonstrates the broad applicability of the technique. A subset of the TIMIT databa...

Design diversity has long been used to protect redundant systems against common-mode failures. The conventional notion of diversity relies on “independent” generation of “different” implementations. This concept is qualitative and does not provide a basis to compare the reliabilities of two diverse systems. In this paper, for the first time, we present a metric to quantify diversity among sever...

DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users’ viewpoint, this paper presents a review on the improvement of reliability of DC-link in power electronic converters from two aspects: 1) reliability-oriented DC-link design solutions; 2) conditioning monitoring of ...

Link quality estimation of reliability-crucial wireless sensor networks (WSNs) is often limited by the observability and testability of single-chip radio transceivers. The estimation is often based on collection of packer-level statistics, including packet reception rate, or vendor-specific registers, such as CC2420’s Received Signal Strength Indicator (RSSI) and Link Quality Indicator (LQI). T...

variation of frequency and voltage by load changes in a microgrid is a challenge in droop control method. centralized restoration frequency or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. this paper proposes a decentralized method that restores the frequency of a microgr...

Manageability directly influences a system’s reliability, availability, security, and safety, thus being a key ingredient of system dependability. Alas, we do not have today a good way to measure manageability or reason quantitatively about it, and this is a major hindrance in improving systems’ ease of management. In this paper, we propose a manageability metric that aims to be objective, intu...

Cross-layer mechanism, for which a protocol locating at a given layer uses information issued from other layers, may enhance the mobile networks performance. Some of those mechanisms are based on mobility metrics. For example, the establishment of a route by choosing less mobile nodes could improve the routing protocol. In this paper, we study the ability of mobility metrics to reflect the mobi...

Wireless Mesh Network (WMN) has drawn much attention due to wide service coverage with low system cost. However, WMN suffers from high bit error rate, which provides different link capacity among wireless mesh routers. The conventional routing metrics select the path based on link quality. The link with the best quality is preferred as the data transmission path, and they becomes the bottleneck...

We are developing a suite of metrics for early assessment of software reliability and to provide feedback to the developer on the quality of their testing effort. The suite consists of easy-to-measure information collected from the source code and test programs. We are studying correlation between these metrics and the reliability of the developed software. The results of an initial case study ...

Aims: This study compared the psychometric properties of two self-efficacy instruments related to physical activity. Factorial validity, cross-group and longitudinal invariance, and composite reliability were examined. Methods: Secondary analysis was conducted on data from a group randomized controlled trial investigating the effect of a 17-week intervention on increasing moderate to vigorous p...