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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.


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Journal ArticleDOI
TL;DR: This work focuses on situation awareness; a more holistic variant of context awareness where situations are regarded as logically aggregated contexts, and proposes the use of Fuzzy Logic theory with the purpose of determining and reasoning about the current situation of the involved user.
Abstract: Context awareness is viewed as one of the most important aspects in the emerging pervasive computing paradigm. We focus our work on situation awareness; a more holistic variant of context awareness where situations are regarded as logically aggregated contexts. One important problem that arises in such systems is the imperfect observations (e.g., sensor readings) that lead to the estimation of the current context of the user. Hence, the knowledge upon which the context / situation aware paradigm is built is rather vague. To deal with this shortcoming, we propose the use of Fuzzy Logic theory with the purpose of determining (inferring) and reasoning about the current situation of the involved user. We elaborate on the architectural model that enables the system to assume actions autonomously according to previous user reactions and current situation. The captured, imperfect contextual information is matched against pre-developed ontologies in order to approximately infer the current situation of the user. Finally, we present a series of experimental results that provide evidence of the flexible, efficient nature of the proposed situation awareness architecture.

44 citations

Journal ArticleDOI
TL;DR: In this article, the authors provide a broad overview of the progress of computer vision covering all sorts of emergencies, focusing on state-of-the-art systems that cover the same emergency as they are studying, obviating important research in other fields.
Abstract: In emergency situations, actions that save lives and limit the impact of hazards are crucial. In order to act, situational awareness is needed to decide what to do. Geolocalized photos and video of the situations as they evolve can be crucial in better understanding them and making decisions faster. Cameras are almost everywhere these days, either in terms of smartphones, installed CCTV cameras, UAVs or others. However, this poses challenges in big data and information overflow. Moreover, most of the time there are no disasters at any given location, so humans aiming to detect sudden situations may not be as alert as needed at any point in time. Consequently, computer vision tools can be an excellent decision support. The number of emergencies where computer vision tools has been considered or used is very wide, and there is a great overlap across related emergency research. Researchers tend to focus on state-of-the-art systems that cover the same emergency as they are studying, obviating important research in other fields. In order to unveil this overlap, the survey is divided along four main axes: the types of emergencies that have been studied in computer vision, the objective that the algorithms can address, the type of hardware needed and the algorithms used. Therefore, this review provides a broad overview of the progress of computer vision covering all sorts of emergencies.

44 citations

01 Mar 2001
TL;DR: The authors investigated Air Traffic Control Specialists' perspective regarding decision making and planning and related cognitive processes such as learning, memory, and situation awareness, and found that controllers emphasize the importance of safety, situation awareness and planning skills, backup strategies, and collective nature of their task.
Abstract: : This study investigated Air Traffic Control Specialists' perspective regarding decision making and planning and related cognitive processes such as learning, memory, and situation awareness. The results of 100 semi-structured interviews indicated that controllers emphasize the importance of safety, situation awareness, planning skills, backup strategies, and the collective nature of their task. Participants reported that they plan their first actions and start building their mental picture prior to assuming control of their position. They indicated using flight progress strips to support their memory. Controllers described that they become more conservative when facing difficulties like high workload, fatigue, aging, and bad weather. Concerning the respective effects of experience and facility type, the more experienced participants were, the more likely they reported formulating backup plans. Terminal controllers were more likely than en route controllers to report using the first strategy that they develop instead of considering alternatives when a potential conflict is detected or when workload is high. Terminal controllers also indicated that they were less likely to wait and see when they are not sure if there is a conflict. Finally, respondents expressed a need for conflict probes, better weather information, data link communication, and better radars.

44 citations

Journal ArticleDOI
TL;DR: The paper provides some of the first empirical evidence on the utility of the virtual globes to support situation awareness for disaster management using implicit geographic information.

44 citations

Journal ArticleDOI
TL;DR: The results indicate that SASS improves operators' situation awareness (SA), and specifically has benefits for SA levels 2 and 3, and it is concluded that Sass reduces operator workload, although further investigations in different environments with a larger number of participants have been suggested.

44 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023429
2022949
2021302
2020417
2019422