Early Warning Systems aim at detecting unclassified but potentially harmful system behavior based on preliminary indications and are complementary to Intrusion Detection Systems. Both kinds of systems try to detect, identify and react before possible damage occurs and contribute to an integrated and aggregated situation report (big picture). A particular emphasis of Early Warning Systems is to ...

The nation faces a growing concern that terrorists or state actors will resort to the use of chemical or biological warfare agents against military or civilian targets. The primary defensive action available for this threat is to detect the deadly agents before they contact their intended victims. Given advance warning, people can evacuate a contaminated area, administer prophylactic medication...

Max Birchwood is Director of the Early Intervention Service (Harry Watton House, 97 Church Lane, Aston, Birmingham B6 5UG) and Director of Research and Development of Northern Birmingham Mental Health NHS Trust. He is also a Research Professor at the School of Psychology, University of Birmingham. Elizabeth Spencer is a senior clinical medical officer working in Northern Birmingham Mental Healt...

An early-warning indicator screening method is proposed in order to construct an early-warning system for vegetable prices. Through index contribution analysis and the application of a support vector regression algorithm, we compare the results of early warning before and after index optimization. Experimental results show that the proposed early-warning system was significantly improved after ...

Earthquake early warning (EEW) can reduce harm to people and infrastructure from earthquakes and tsunamis, but it has not been implemented in most high earthquake-risk regions because of prohibitive cost. Common consumer devices such as smartphones contain low-cost versions of the sensors used in EEW. Although less accurate than scientific-grade instruments, these sensors are globally ubiquitou...

the frequent occurrence of currency crises in recent years brought the early warning literature back in the researchers spotlight. in recent years, concept of an early warning system (ews) developed that should be able to identify various costly events, such as currency crises, early enough for policy makers to reduce the costs. this study attempted by using iran's economy quarterly data d...

This paper proposes an online early warning technique and the probability distribution function (PDF) based icing image recognition for overhead power transmission lines. The main functionality of the online early warning system for overhead transmission lines firstly suggested in this paper is the early warning of icing, forest fire, lighting, insulator flashover, conductor galloping and invas...