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As sport becomes more complex, there is potential for ergonomics concepts to help enhance the performance of sports officials. The concept of Situation Awareness (SA) appears pertinent given the requirement for officials to understand what is going on in order to make decisions. Although numerous models exist, none have been applied to examine officials, and only several recent examples have been applied to sport. This paper examines SA models and methods to identify if any have applicability to officials in sport (OiS). Evaluation of the models and methods identified potential applications of individual, team and systems models of SA. The paper further demonstrates that the Distributed Situation Awareness model is suitable for studying officials in fastball sports. It is concluded that the study of SA represents a key area of multidisciplinary research for both ergonomics and sports science in the context of OiS.
Practitioner Summary: Despite obvious synergies, applications of cognitive ergonomics concepts in sport are sparse. This is especially so for Officials in Sport (OiS). This article presents an evaluation of Situation Awareness models and methods, providing practitioners with guidance on which are the most suitable for OiS system design and evaluation. 相似文献
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认知无线电网络通过动态频谱接入来提高无线频谱资源利用率,而节点目标信道选择的优劣直接决定了频谱接入性能的好坏. 本文首先综合考虑信道增益和空闲时间两种因素,设计以实现最大化系统容量的目标信道选择机制,然后引入信道热度概念,提出一种多属性决策信道选择机制. 仿真结果表明,多属性决策信道选择机制在系统吞吐量和频谱利用率性能上都有明显的提高. 相似文献
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在传感器协助认知无线电网络中,传统的高能效传感器调度问题只考虑了一个频段。多频段的传感器调度问题有许多新的研究领域。建立了一种多频段传感器调度问题的模型,提出了一种用于提高认知网络通信容量的基于遗传算法的高能效调度算法。模型考虑了传感器切换频段的能量消耗。在问题模型中,认知基站基于提高能效的目标为每个频段分配一组传感器进行协作感知。基于遗传算法的高能效调度算法通过优化传感器的调度使认知网络达到最大的通信容量,从而达到高能效的目标。仿真结果表明,本文的算法可以比贪心算法以及其他算法取得更高的网络通信容量。 相似文献
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This paper applies cognitive models, inspired by cognitive science, with the aim to propose architectural and knowledge‐based requirements to structure ontological models for the cognitive profiling of agents. The proposed architecture aims to address the lack of flexibility that most agent‐based collaborations are affected by. The resulting agents, equipped with advanced cognitive profiling, have an increased cognitive awareness of themselves and are more capable of interacting with other agents in a multi‐agents based environment. In this research, cognitive awareness identifies the ability of the web agents to diagnose their processing limitations and to establish interactions with the external environment. The outcome is the enhanced flexibility, reusability and predictability of the agent behaviour; thus contributing towards minimizing human cognitive demands. The concept of cognitive profiling presented in this paper considers the semantic web as an action mediating space, where ontological models provide affordances for improving cognitive awareness through shared knowledge‐base. The conceptual model for the cognitive profile architecture is developed with Protégé Ontology editor to generate OWL Ontology and evaluated through a proof of concept. The results show that agents equipped with cognitive awareness can undertake complex tasks more dynamically. 相似文献
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Chih-Huang Wang Shyi-Ming Chen 《Soft Computing - A Fusion of Foundations, Methodologies and Applications》2008,12(9):919-934
This paper presents a new method for appraising the performance of high school teachers based on fuzzy number arithmetic operations.
It uses fuzzy numbers to represent fuzzy grades. The fuzzy weights of criteria are automatically generated from the opinions
of evaluators. The simplified fuzzy number arithmetic operations are used for calculating the average of fuzzy numbers. It
can appraise the performance of high school teachers in a more flexible and more intelligent manner. 相似文献