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 ...