Situation awareness

About: Situation awareness is a research topic. Over the lifetime, 7380 publications have been published within this topic receiving 108695 citations. The topic is also known as: SA & situational awareness.

Toward situation awareness for the semantic sensor web: complex event processing with dynamic linked data enrichment

Abstract: Over the past few years there has been a proliferation in the use of sensors within different applications. The increase in the quantity of sensor data makes it difficult for end users to understand situations within the environments where the sensors are deployed. Thus, there is a need for situation assessment mechanisms upon the sensor networks to assist users to interpret sensor data when making decisions. However, one of the challenges to realize such a mechanism is the need to integrate real-time sensor readings with contextual data sources from legacy systems. This paper tackles the data enrichment problem for sensor data. It builds upon Linked Data principles as a valid basis for a unified enrichment infrastructure and proposes a dynamic enrichment approach that sees enrichment as a process driven by situations of interest. The approach is demonstrated through examples and a proof-of-concept prototype based on an energy management use case.

Improving situation awareness in crisis response teams

Abstract: In responding to an emergency, the actions of emergency response teams critically depend upon the situation awareness the team members have acquired Situation awareness, and the design of systems to support it, has been a focus in recent emergency management research In this paper, we introduce two interventions to the core processes of information processing and information sharing in emergency response teams to analyze their effect on the teams' situation awareness: (1) we enrich raw incoming information by adding a summary of the information received, and (2) we channel all incoming information to a central coordinator who then decides upon further distribution within the team The effect of both interventions is investigated through a controlled experiment with experienced professional responders Our results show distinctly different effects for information enrichment and centralization, both for the teams and for the coordinators within the team While the interaction effects of both conditions cannot be discerned, it is apparent that processing non-enriched information and non-centralized information sharing leads to a worse overall team situation awareness Our work suggests several implications for the design of emergency response management information systems Focuses on situation awareness in crisis response teamsProposes new approaches to information processing & sharing for situation awarenessReports on a controlled experiment conducted with professional emergency respondersShows the impact of enriched & centralized information on team situation awarenessSuggests design implications for emergency response information systems

A multi-agent fuzzy consensus model in a Situation Awareness framework

Abstract: Graphical abstractDisplay Omitted In order to define systems enabling the automatic identification of occurring situations, numerous approaches employing intelligent software agents to analyse data coming from deployed sensors have been proposed. Thus, it is possible that more agents are committed to monitor the same phenomenon in the same environment. Redundancy of sensors and agents is needed, for instance, in real world applications in order to mitigate the risk of faults and threats. One of the possible side effects produced by redundancy is that agents, observing the same phenomenon, could provide discordant opinions. Indeed, solid mechanisms for reaching an agreement among these agents and produce a shared consensus on the same observations are needed. This paper proposes an approach to integrate a fuzzy-based consensus model into a Situation Awareness framework. The main idea is to consider intelligent agents as experts claiming their opinions (preferences) on a phenomenon of interest.

Enhanced Situation Awareness in Sea, Air and Land Environments

Abstract: Summary United States (US) military Special Forces teams currently use 2D visual displays for navigation information in the air, in water, and on the ground These current displays demand the user’s visual attention, which can compromise mission effectiveness, and using visual displays in low light visibility environments can cause fatigue, degrade performance, and compromise a clandestine situation If navigation equipment that is dependent on visual displays were integrated with a tactile display, the need to use vision for navigation could be minimized The operator could be more effective if his eyes were used to survey the surroundings rather than continuously monitor a visual display The Tactile Situation Awareness System for Special Forces (TSAS-SF) was developed to investigate the potential of tactile displays for Special Forces operations The TSAS-SF will upgrade present 2D visual navigation displays and will provide non-visual, non-audible navigation information to Special Forces personnel by interfacing navigation information with a tactile display This new capability will provide 2D direction cues to the skin, which will free the user’s visual senses for higher priority tasks (eg contact identification and classification) Preliminary testing in a High Altitude, High Opening (HAHO) parachute environment and a ground environment, and earlier testing in an underwater environment (McTrusty, Walters, 1997, Rupert, McTrusty, Peak, 1999), have demonstrated that navigation can be performed faster with tactile cues than visual cues, and superior navigational accuracy can be achieved with less mental fatigue on the operator These results suggest that a tactile display that provides ‘eyes free’ and ‘hands free’ air and ground navigation information may provide the opportunity to devote more time to other instruments and tasks when operating in high workload conditions These effects can increase mission effectiveness The preliminary results from the air and ground navigation tests justify continued testing and evaluation to extend the capabilities of the tactile display, for use as an operational device for navigation in sea, air and land environments