A Critical Situation

Situation awareness in critical infrastructures

The present paper provides a comprehensive review about the main concepts on situation awareness for critical infrastructure. The issues related to models and architectures for data fusion and situation awareness are reported in the framework of Critical Infrastructure Protection. Both data fusion and situation swareness have been developed in Critical Infrastructure field to merge and integrat...

Detecting Critical Situation in Public Transport

This paper presents a system information applied to video surveillance to detect and identify aggressive behaviors of people in public transport. A competitive neural network is proposed to form a background model for detecting objects in motion in the sequence. After identifying the objects and extracting its features a set of rules are applied to decide if an anomalous behavior is or not cons...

A Cognitive Architecture Framework for Critical Situation Awareness Systems

Goal-oriented human-machine situation-awareness systems focus on the challenges related to perception of the elements of an environment and their state, within a time-space window, the comprehension of their meaning and the estimation of their state in the future. Present computer-supported situation awareness systems provide realtime information fusion from different sources, basic data analys...

Theoretical Underpinnings of Situation Awareness: a Critical Review

Situation ActionPlanner Situation ActionReactivePolicy A ) B ) C ) Situation

Dyna is an AI architecture that integrates learning, planning, and reactive execution. Learning methods are used in Dyna both for compiling planning results and for updating a model of the eeects of the agent's actions on the world. Planning is incre-mental and can use the probabilistic and ofttimes incorrect world models generated by learning processes. Execution is fully reactive in the sense...