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Situational continuity-based air combat autonomous maneuvering decision-making
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作者 Jian-dong Zhang Yi-fei Yu +3 位作者 Li-hui Zheng Qi-ming Yang Guo-qing Shi Yong Wu 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2023年第11期66-79,共14页
In order to improve the performance of UAV's autonomous maneuvering decision-making,this paper proposes a decision-making method based on situational continuity.The algorithm in this paper designs a situation eval... In order to improve the performance of UAV's autonomous maneuvering decision-making,this paper proposes a decision-making method based on situational continuity.The algorithm in this paper designs a situation evaluation function with strong guidance,then trains the Long Short-Term Memory(LSTM)under the framework of Deep Q Network(DQN)for air combat maneuvering decision-making.Considering the continuity between adjacent situations,the method takes multiple consecutive situations as one input of the neural network.To reflect the difference between adjacent situations,the method takes the difference of situation evaluation value as the reward of reinforcement learning.In different scenarios,the algorithm proposed in this paper is compared with the algorithm based on the Fully Neural Network(FNN)and the algorithm based on statistical principles respectively.The results show that,compared with the FNN algorithm,the algorithm proposed in this paper is more accurate and forwardlooking.Compared with the algorithm based on the statistical principles,the decision-making of the algorithm proposed in this paper is more efficient and its real-time performance is better. 展开更多
关键词 UAV Maneuvering decision-making situational continuity Long short-term memory(LSTM) Deep Q network(DQN) Fully neural network(FNN)
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AUTONOMOUS AGENT FRAMEWORK AND ITS DECISION-MAKING
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作者 李斌 朱梧槚 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2005年第1期59-63,共5页
Autonomy, a key property associated with the agent, is an important topic in the current research of the agent theory. Although no definition of the agent autonomy is universally accepted, an important aspect of the a... Autonomy, a key property associated with the agent, is an important topic in the current research of the agent theory. Although no definition of the agent autonomy is universally accepted, an important aspect of the agent autonomy is the decision-making capability of the agents. This paper investigates the autonomy of the agent, presents a framework for autonomous agent and discusses its decision-making process. Started with introducing a language for representing autonomous agent, a framework is proposed for modeling autonomous agent based on a BDI model and the situation calculus. Finally, a kind of decision-making process of the autonomous agent is presented. 展开更多
关键词 autonomous agent agent theory BDI model situation calculus decision-making
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Decision-making method for high-speed rail early warning system in complex earthquake situations
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作者 Minjia Tan Qizhou Hu +2 位作者 Yikai Wu Juanjuan Lin Xin Fang 《Transportation Safety and Environment》 EI 2024年第3期47-61,共15页
To address the shortcomings in decision-making methods for ground motion threshold warning models in high-speed rail earthquake early warning systems(HSREEWs),we propose a dual judgement method and corresponding early... To address the shortcomings in decision-making methods for ground motion threshold warning models in high-speed rail earthquake early warning systems(HSREEWs),we propose a dual judgement method and corresponding early warning process for earthquake early warning decisions based on joint peak ground acceleration(PGA)and complex earthquake environmental risk evaluation(ERE)values.First,we analyse the characteristics of four complex earthquake environments based on the characteristics of high-speed rail(HSR)operating environments.Second,we establish an earthquake environmental risk evaluation index system and propose an adversarial interpretive structure modelling method-based complex earthquake situation evaluation model(AISM-based ESEM).The AISM method firstly evaluates the proximity by the TOPSIS(technique for order preference by similarity to an ideal solution)method,then effectively rank targets with fuzzy attributes through opposite hierarchical extraction rules without sacrificing system functionality.Since PGA can reflect the current size of earthquake energy,combining PGA thresholds with ESEM-derived values of ERE can effectively determine the risk status of each train and make decisions on the most appropriate alarm form and control measures for that status.Finally,case analysis results under the background of Wenchuan Earthquake show that the new early warning decisionmaking method accurately assesses environmental risks in affected areas and provides corresponding warning levels as a supplement to existing HSREEWs warning models. 展开更多
关键词 high-speed rail(HSR) earthquake situation earthquake risk decision-making earthquake early warning
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基于态势感知平台的大型医院网络安全风险管理实践
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作者 孙保峰 张伟祎 +1 位作者 杨扬 李郁鸿 《医学信息学杂志》 CAS 2024年第10期81-85,共5页
目的/意义分析大型医院态势感知平台所监测到的网络安全风险事件,探明其产生的原因,提出解决方法和改善建议。方法/过程以郑州大学第一附属医院为例,对态势感知平台风险事件聚合分析,筛选医院内网风险终端,并进行整改加固,分析风险终端... 目的/意义分析大型医院态势感知平台所监测到的网络安全风险事件,探明其产生的原因,提出解决方法和改善建议。方法/过程以郑州大学第一附属医院为例,对态势感知平台风险事件聚合分析,筛选医院内网风险终端,并进行整改加固,分析风险终端的科室分布和成因,提出改善建议。结果/结论医技科室风险终端数量较多,主要原因在于缺乏管理及未做到防病毒软件全覆盖。通过风险终端整改加固,网络安全风险事件数量明显减少。加强医院终端安全管理、提升人员网络安全意识、分区加强网络安全防护可有效降低医院网络安全风险事件发生率,提升医院网络安全防护能力。 展开更多
关键词 大型医院 态势感知平台 网络安全 风险终端
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Challenges of human-machine collaboration in risky decision-making 被引量:4
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作者 Wei XIONG Hongmiao FAN +1 位作者 Liang MA Chen WANG 《Frontiers of Engineering Management》 2022年第1期89-103,共15页
The purpose of this paper is to delineate the research challenges of human-machine collaboration in risky decision-making.Technological advances in machine intelligence have enabled a growing number of applications in... The purpose of this paper is to delineate the research challenges of human-machine collaboration in risky decision-making.Technological advances in machine intelligence have enabled a growing number of applications in human-machine collaborative decisionmaking.Therefore,it is desirable to achieve superior performance by folly leveraging human and machine capabilities.In risky decision-making,a human decisionmaker is vulnerable to cognitive biases when judging the possible outcomes of a risky event,whereas a machine decision-maker cannot handle new and dynamic contexts with incomplete information well.We first summarize features of risky decision-making and possible biases of human decision-makers therein.Then,we argue the necessity and urgency of advancing human-machine collaboration in risky decision-making.Afterward,we review the literature on human-machine collaboration in a general decision context,from the perspectives of human-machine organization,relationship,and collaboration.Lastly,we propose challenges of enhancing human-machine communication and teamwork in risky decisionmaking,followed by future research avenues. 展开更多
关键词 human-machine collaboration risky decision-making human-machine team and interaction task allocation human-machine relationship
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风险认知策略的计算机模拟实验 被引量:2
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作者 谢晓非 徐联仓 《心理学报》 CSSCI CSCD 北大核心 1996年第2期192-200,共9页
风险认知策略是个体面临风险情景时的风险认知倾向,可以通过个体的行为策略加以判断。本实验采用计算机模拟风险情景,以严格的2×2×3的实验变量设计,研究个体的风险认知策略与风险情景因素的关系。实验结论表明,风险认... 风险认知策略是个体面临风险情景时的风险认知倾向,可以通过个体的行为策略加以判断。本实验采用计算机模拟风险情景,以严格的2×2×3的实验变量设计,研究个体的风险认知策略与风险情景因素的关系。实验结论表明,风险认知策略的调整与风险情景中的实际风险程度(风险概率)、风险信息类型以及对风险情景可控与不可控性的知觉有关。个体的冒险性倾向是相对稳定的心理特征,但风险认知策略的调整不仅与个体的心理特征有关,还与风险情景因素有关。 展开更多
关键词 风险认知 风险认知策略 风险情景
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风险情景中参照点与管理者认知特征 被引量:7
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作者 谢晓非 王晓田 《心理学报》 CSSCI CSCD 北大核心 2004年第5期575-585,共11页
采用问卷测量的方法探讨风险情景以及个性特征对个体风险倾向的影响。结果显示 :(1)成就动机的两个成分 ,即争取成功与回避失败能够分别预测个体在风险情景中的风险倾向与认知特征 ;争取成功动机对预测个体机会认知更敏感 ,而回避失败... 采用问卷测量的方法探讨风险情景以及个性特征对个体风险倾向的影响。结果显示 :(1)成就动机的两个成分 ,即争取成功与回避失败能够分别预测个体在风险情景中的风险倾向与认知特征 ;争取成功动机对预测个体机会认知更敏感 ,而回避失败动机对预测威胁认知更有效。 (2 )回避失败动机是区分个体风险倾向的关键变量 ,个体在风险情景中的风险倾向取决于个体回避失败动机的强弱。 (3)实验证实了当以“成功”为参照点时 ,回避失败倾向低的个体 ,在获益情景中更冒险而在损失情景中更保守 ;相反 ,回避失败倾向高的个体 ,在损失情景中更冒险而在获益情景中更保守。研究表明 ,结合人格和情景两类变量探讨个体风险倾向的反应模式能够更准确地描述个体行为倾向及其认知特征。这一结论提供了一个可能的思路来解释P理论与刻板模式之间的争执。另外 ,企业与学生样本在数据的总体趋势上存在相当多的一致性 ,但在细节上仍然存在差异 ,因此以学生样本数据进行推论时须要特别谨慎。 展开更多
关键词 风险情景 风险认知 风险倾向
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风险决策框架下的求助意愿:依恋的调节作用 被引量:1
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作者 王秀娟 王梦婷 +2 位作者 韩尚锋 刘燊 张林 《心理与行为研究》 CSSCI 北大核心 2019年第6期840-845,共6页
基于风险决策框架探讨情境紧急性和依恋类型对个体求助意愿的影响,通过亲密关系经历量表区分安全依恋和不安全依恋被试,考察他们在不同情境条件下的求助意愿及风险偏好。结果发现:(1)个体在紧急情境下的求助意愿显著高于一般情境下的求... 基于风险决策框架探讨情境紧急性和依恋类型对个体求助意愿的影响,通过亲密关系经历量表区分安全依恋和不安全依恋被试,考察他们在不同情境条件下的求助意愿及风险偏好。结果发现:(1)个体在紧急情境下的求助意愿显著高于一般情境下的求助意愿,安全依恋个体的求助意愿显著高于不安全依恋个体的求助意愿;(2)依恋安全调节情境紧急性对求助意愿的影响,安全依恋个体在一般和紧急情境下均表现为风险规避型求助,不安全依恋个体在一般情境下表现为风险规避型求助,在紧急情境下则表现为风险寻求型求助。这表明,情境越紧急,个体的求助意愿越高,且依恋安全调节个体求助方式的风险倾向。 展开更多
关键词 风险决策 求助意愿 情境紧急性 依恋类型
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多巴胺能药物对早期帕金森病患者决策认知功能的影响 被引量:9
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作者 李迎 刘婷婷 +3 位作者 胡盼盼 马慧娟 陈先文 汪凯 《临床神经病学杂志》 CAS 2019年第3期206-209,共4页
目的研究多巴胺能药物对早期帕金森病(PD)患者在明确概率条件下风险决策认知功能的影响。方法采用骰子博弈试验(GDT)进行明确概率风险决策能力的评估。共纳入40例规律口服多巴胺能药物的原发性PD患者(服药组)、40例撤药后的原发性PD患者... 目的研究多巴胺能药物对早期帕金森病(PD)患者在明确概率条件下风险决策认知功能的影响。方法采用骰子博弈试验(GDT)进行明确概率风险决策能力的评估。共纳入40例规律口服多巴胺能药物的原发性PD患者(服药组)、40例撤药后的原发性PD患者(撤药组)以及匹配的40名正常对照组。结果在GDT中,服药组风险选项次数明显大于撤药组和HC组(均P<0.05)。服药组安全选项次数明显小于撤药组和HC组(均P<0.05)。PD患者负反馈利用率与风险选项的次数呈负相关(r=-0.57,P=0.000),与H-Y分级呈负相关(r=-0.23,P=0.046)。结论在风险概率明确情境下,多巴胺能药物会增加早期PD患者对高风险和高回报选项的偏爱,使负反馈的利用率降低。短期撤药后风险决策能力能够改善。 展开更多
关键词 帕金森病 风险决策 认知 多巴胺能药物
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Mission decision-making method of multi-aircraft cooperatively attacking multi-target based on game theoretic framework 被引量:18
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作者 Yao Zongxin Li Ming +1 位作者 Chen Zongji Zhou Rui 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2016年第6期1685-1694,共10页
Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the... Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the mission decision-making. Therefore, in this paper, we develop a mission decision-making method of multi-aircraft cooperatively attacking multi-target based on situational assessment. We have studied the situational assessment mathematical model based on the Dempster-Shafer(D-S) evidence theory and the mission decision-making mathematical model based on the game theory. The proposed mission decision-making method of antagonized airfight is validated by some simulation examples of a swarm of unmanned combat aerial vehicles(UCAVs)that carry out the mission of the suppressing of enemy air defenses(SEAD). 展开更多
关键词 Antagonized airfight D-S evidence theory Fuzzy mapping function Game theoretic framework Mission decision-making Multi-aircraft coordination situational assessment
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判断与决策中的框定效应
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作者 赵友志 《天津市社会主义学院学报》 2007年第4期34-38,共5页
判断与决策是人类问题解决研究之中最复杂、也最令人感兴趣的领域。但是,长期以来,由于这一问题本身牵涉到太多的认知心理过程,相关研究几乎没有取得任何实质性的进展。而自疾病模型(Disease Problem)提出以来,框定(framing)效应一跃成... 判断与决策是人类问题解决研究之中最复杂、也最令人感兴趣的领域。但是,长期以来,由于这一问题本身牵涉到太多的认知心理过程,相关研究几乎没有取得任何实质性的进展。而自疾病模型(Disease Problem)提出以来,框定(framing)效应一跃成为人类决策研究中最为热门的话题,在经济、政治、公共卫生等诸多方面的决策研究都是以此为突破口,获得了一系列引人注目的研究成果。本文简要回顾了框定——尤其是风险决策框定——概念的提出与演化、实验范式的继承与发展,在总结这一领域所取得成果的同时,也试图指出其中存在的固有问题。 展开更多
关键词 框定(framing) 风险决策的框定(risky CHOICE framing) 信息加工(information process) 决策(decision-making)
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模糊情景下酒精使用障碍患者风险决策功能的探究
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作者 孙婷婷 孙娜娜 +3 位作者 陈肖杰 芮琴琴 刘晓雪 陶睿 《临床精神医学杂志》 CAS 2022年第3期185-189,共5页
目的:探究模糊情景下酒精使用障碍(AUD)患者的风险决策功能的损害情况及影响因素。方法:选取2021年1月至4月在安徽省精神卫生中心住院治疗的男性AUD患者30例(AUD组)及30名同期健康男性作为对照组,使用气球模拟风险任务(BART)对两组被试... 目的:探究模糊情景下酒精使用障碍(AUD)患者的风险决策功能的损害情况及影响因素。方法:选取2021年1月至4月在安徽省精神卫生中心住院治疗的男性AUD患者30例(AUD组)及30名同期健康男性作为对照组,使用气球模拟风险任务(BART)对两组被试进行模糊情景下的风险决策功能探究,使用线性回归分析AUD组风险决策功能的影响因素。结果:AUD组吸烟者尼古丁依赖检验量表(FTND)与密西根酒精筛查量表(MAST)评分高于对照组(P均<0.01)。AUD组BART中最后获得金钱总额与赢钱次数更少,所有气球平均打气次数与爆炸次数更多(P<0.05或P<0.01)。线性回归分析结果显示开始饮酒年龄、宾夕法尼亚渴求量表(PACS)评分、贝克焦虑自评量表(BAI)评分、贝克抑郁自评量表(BDI)评分、BART中爆炸气球平均打气次数、所有气球平均打气次数和爆炸次数可能是风险决策功能损害的影响因素。结论:AUD患者在模糊情景下风险决策功能存在损害,这种损害与开始饮酒年龄、PACS、BAI与BDI评分、BART中爆炸气球平均打气次数、所有气球平均打气次数和爆炸次数等因素有关。 展开更多
关键词 酒精使用障碍 模糊情景 风险决策 影响因素
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