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A prospect theory-based methodfor linguistic decision making under risk
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作者 Liu Shuli Liu Xinwang 《Journal of Southeast University(English Edition)》 EI CAS 2017年第3期370-376,共7页
Based on the prospect theory, a novel linguisticdecision method under risk is proposed. First, the alternativesunder each risk state are rated using linguistic terms, and' thelinguistic decision matrix is constructed... Based on the prospect theory, a novel linguisticdecision method under risk is proposed. First, the alternativesunder each risk state are rated using linguistic terms, and' thelinguistic decision matrix is constructed. Secondly, thelinguistic terms are transformed into triangular fuzzy numbers,so that the linguistic evaluations can be changed into numericalforms. Thirdly, with the aid of the prospect theory, theprobability weight functions and the linguistic value functionscan be computed, based on which the prospective values of thealternatives are obtained. Finally, the alternatives are rankedwith respect to the prospective values combined of probabilityweight and linguistic value functions. Thus, the optimalchoice is made. The decision process takes the psychologicalpreferences of the decision maker into consideration. Thepracticality of the proposed method is illustrated through anapplication on stock selection problems. 展开更多
关键词 decision making under risk LINGUISTIC evaluation PROSPECT theory STOCK selection
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The Credit Risk Assessment Model of Internet Supply Chain Finance: Multi-Criteria Decision-Making Model with the Principle of Variable Weight 被引量:1
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作者 Yueliang Su Baoyu Zhong 《Journal of Computer and Communications》 2017年第1期20-30,共11页
The characteristics of the financing model are firstly analyzed when the e-commerce enterprises participate in the supply chain finance. Internet supply chain finance models are divided into three categories with the ... The characteristics of the financing model are firstly analyzed when the e-commerce enterprises participate in the supply chain finance. Internet supply chain finance models are divided into three categories with the standard of whether the electronic commerce enterprises provide funds for small and medium enterprises instead of banks. And then we further study the financing process and the functions of the e-commerce platform with specific examples. Finally, combined with the characteristics of the supply chain finance model, we set up a small and medium enterprises credit evaluation model based on the principle of variable weight with its dynamic data. At the same time, a multi-time points and multi-indicators decision-making method based on the principle of variable weight is proposed and a specific example is presented. In this paper, the multi-criteria decision-making model with the principle of variable weight has been used two times. At last, a typical case has been analyzed based on this model with a higher accuracy rate of credit risk assessment. 展开更多
关键词 CREDIT risk Assessment MODEL MULTI-CRITERIA decision-making MODEL Variable PRINCIPLE
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The Credit Risk Assessment Model of Internet Supply Chain Finance: Multi-Criteria Decision-Making Model with the Principle of Variable Weight 被引量:1
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作者 Yueliang Su Baoyu Zhong 《Journal of Computer and Communications》 2016年第16期1-11,共11页
The characteristics of the financing model are firstly analyzed when the e-commerce enterprises participate in the supply chain finance. Internet supply chain finance models are divided into three categories with the ... The characteristics of the financing model are firstly analyzed when the e-commerce enterprises participate in the supply chain finance. Internet supply chain finance models are divided into three categories with the standard of whether the Electronic commerce enterprises provide funds for small and medium enterprises instead of banks. And then we further study the financing process and the functions of the e-commerce platform with specific examples. Finally, combined with the characteristics of the supply chain finance model, we set up a small and medium enterprises credit evaluation model based on the principle of variable weight with its dynamic data. At the same time, a multi time points and multi indicators decision-making method based on the principle of variable weight is proposed and a specific example is presented. In this paper, the Multi-criteria decision-making model with the principle of variable weight has been used two times. At last, a typical case has been analyzed based on this model with a higher accuracy rate of credit risk assessment. 展开更多
关键词 Credit risk Assessment Model Multi-Criteria decision-making Model Variable Principle
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Method for Risky Multiobjective Group Decision-Making and Its Application
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作者 Yu Yibin & Wang Bende Department of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, P. R. China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2003年第4期7-12,共6页
The multiobjective group decision-making problem under risk is common in reality. This paper focuses on the study about risky multiobjective group decision-making problem where the index value is not certain. We give ... The multiobjective group decision-making problem under risk is common in reality. This paper focuses on the study about risky multiobjective group decision-making problem where the index value is not certain. We give indexes classifying method and index normalizing formula of this type problem. By building objective function that minimizes general weighted distance from every alternative to the relatively best and worst alternative, the optimal membership degree of every decision-maker to every alternative can be obtained, and by building another objective function that minimizes general weighted distance from the optimal membership degree of every decision-maker to every alternative to the group optimal alternative and the group inferior alternative, the optimal membership degree of every decision-maker to every alternative can be obtained, which are both based on probability theory and fuzzy theory. Aftermost a model is established which collects group preferences. This method provides a new idea and approach for solving multiobjective decision-making problem among uncertain system, which is applicable for practical problem. Finally a case study shows a satisfactory result. 展开更多
关键词 multiobjective decision-making risk PROBABILITY relative optimal membership degree weights.
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A Method for Risky Multiple Attribute Decision Making with Four - dimensional Reference Point
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作者 DUAN Mingyuan YAN Ruixia 《International English Education Research》 2016年第12期22-25,共4页
A method based on cumulative prospect theory was proposed to solve risky multiple attribute decision making problems with Four -dimensional reference points. Considering the influence of different learning processes a... A method based on cumulative prospect theory was proposed to solve risky multiple attribute decision making problems with Four -dimensional reference points. Considering the influence of different learning processes and corresponding features on decision-making, a new reference-learning behavior is added, and a risk-based multiple-attribute decision-making method based on four-dimensional reference point cumulative prospect theory is proposed. Firstly, according to the cumulative prospect theory, the prospect value and the decision function value of the four reference points of learning, time, evaluation value and expected value are calculated respectively, and the cumulative prospect value matrix of each program dynamic is formed. Secondly,according to the WAA operalor, Maximize the stage weighting model to obtain the integrated cumulative prospect value. Finally, on the basis of this, the alternatives are sorted according to the size of the total cumulative prospect value, and compared with other methods, the validity and scientific of the proposed method are proved. 展开更多
关键词 risk multiple attribute decision making Cumulative Prospect Theory Four-dimensional reference point
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Governance of artificial intelligence applications in a business audit via a fusion fuzzy multiple rule‑based decision‑making model
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作者 Kuang‑Hua Hu Fu‑Hsiang Chen +1 位作者 Ming‑Fu Hsu Gwo‑Hshiung Tzeng 《Financial Innovation》 2023年第1期2825-2855,共31页
A broad range of companies around the world has welcomed artificial intelligence(AI)technology in daily practices because it provides decision-makers with comprehensive and intuitive messages about their operations an... A broad range of companies around the world has welcomed artificial intelligence(AI)technology in daily practices because it provides decision-makers with comprehensive and intuitive messages about their operations and assists them in formulating appropriate strategies without any hysteresis.This research identifies the essential components of AI applications under an internal audit framework and provides an appropriate direction of strategies,which relate to setting up a priority on alternatives with multiple dimensions/criteria involvement that need to further consider the interconnected and intertwined relationships among them so as to reach a suitable judgment.To obtain this goal and inspired by a model ensemble,we introduce an innovative fuzzy multiple rule-based decision making framework that integrates soft computing,fuzzy set theory,and a multi-attribute decision making algorithm.The results display that the order of priority in improvement—(A)AI application strategy,(B)AI governance,(D)the human factor,and(C)data infrastructure and data quality—is based on the magnitude of their impact.This dynamically enhances the implementation of an AI-driven internal audit framework as well as responds to the strong rise of the big data environment.Highlights Artificial intelligence(AI)promotes the sustainability development of audit tasks.A fuzzy MRDM model extracts key factors from large amounts of data.Fuzzy decision-making trial and evaluation laboratory analysis accounts for dependence and feedback among factors.An effective framework of AI-driven business audit is proposed in which“AI cognition of senior executives”is the most important criterion. 展开更多
关键词 Fuzzy multiple rule-based decision making AUDITING Artificial intelligence risk management
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Risk analysis and maintenance decision making of natural gas pipelines with external corrosion based on Bayesian network 被引量:2
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作者 Yun-Tao Li Xiao-Ning He Jian Shuai 《Petroleum Science》 SCIE CAS CSCD 2022年第3期1250-1261,共12页
Buried natural gas pipelines are vulnerable to external corrosion because they are encased in a soil environment for a long time.Identifying the causes of external corrosion and taking specific maintenance measures is... Buried natural gas pipelines are vulnerable to external corrosion because they are encased in a soil environment for a long time.Identifying the causes of external corrosion and taking specific maintenance measures is essential.In this work,a risk analysis and maintenance decision-making model for natural gas pipelines with external corrosion is proposed based on a Bayesian network.A fault tree model is first employed to identify the causes of external corrosion.The Bayesian network for risk analysis is determined accordingly.The maintenance strategies are then inserted into the Bayesian network to show a reduction of the risk.The costs of maintenance strategies and the reduced risk after maintenance are combined in an optimization function to build a decision-making model.Because of the limitations of historical data,some of the parameters in the Bayesian network are obtained from a probabilistic estimation model,which combines expert experience and fuzzy set theory.Finally,a case study is carried out to verify the feasibility of the maintenance decision model.This indicates that the method proposed in this work can be used to provide effective maintenance schemes for different pipeline external corrosion scenarios and to reduce the possible losses caused by external corrosion. 展开更多
关键词 Natural gas pipelines External corrosion risk analysis Maintenance decision making Bayesian network
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A Study of the Anatomy of Decision Making in the Planning and Appraisal of Hong Kong Section of Guangzhou-Shenzhen-Hong Kong High Speed Rail
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作者 Junyou Liu 《Journal of Architectural Research and Development》 2021年第3期16-19,共4页
This paper will study the anatomy of the decision making of Hong Kong Section of Guangzhou-Shenzhen-Hong Kong High Speed Rail(XRL).The paper will focus on five aspects.They are drivers of megaprojects,mega infrastruct... This paper will study the anatomy of the decision making of Hong Kong Section of Guangzhou-Shenzhen-Hong Kong High Speed Rail(XRL).The paper will focus on five aspects.They are drivers of megaprojects,mega infrastructure project as an agent of change,early and effective stakeholder engagement,Iron Triangle and context awareness.XRL will be regarded as a resonance test of the international literature findings. 展开更多
关键词 decision making ANATOMY risk
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水利工程施工的IT2FS-MARCOS风险评价 被引量:1
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作者 孙开畅 薛文丽 +1 位作者 李婷婷 陈千庆 《水力发电学报》 CSCD 北大核心 2024年第7期109-120,共12页
为解决专家决策的主观性造成的风险评价不确定性和不同风险参数权重下考虑多种风险因子评价问题,这里提出一种基于IT2FS-MARCOS法的水利工程施工风险评价方法。首先确定水利工程施工风险指标评估体系,运用最优最劣法(BWM)融合基于层间... 为解决专家决策的主观性造成的风险评价不确定性和不同风险参数权重下考虑多种风险因子评价问题,这里提出一种基于IT2FS-MARCOS法的水利工程施工风险评价方法。首先确定水利工程施工风险指标评估体系,运用最优最劣法(BWM)融合基于层间相关性的客观赋权法(CRITIC)的组合赋权法对各风险参数的权重进行分析;然后引入区间2型模糊集(IT2FS)改进多准则决策中的基于折衷方案的备选方案排序法(MARCOS)计算各风险因素的效用函数值,基于效用函数值进行风险因素分析和评价。结合工程实例应用,表明:地质、天气条件和作业计划安排等风险因素危险程度较高,其中地质条件对该施工项目安全威胁最大,为水利工程施工需重点管理的风险因子。该模型的特点是不仅考虑了专家评价的模糊性,而且采用多准则决策方法避免对风险参数简单加权,与优劣解距离法(TOPSIS)相比,本方法与工程实际符合得更好,有望为处理水利工程不确定信息下的风险评价提供一种新的思路。 展开更多
关键词 水利工程施工 风险评价 BWM-CRITIC组合赋权法 区间2型模糊集 多准则决策 IT2FS-MARCOS法
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基于D-I-M协同模型的企业数字化转型财务管理风险识别研究 被引量:1
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作者 魏延辉 曹文聪 陈娅茹 《甘肃科学学报》 2024年第2期131-137,146,共8页
数字化正在重塑经济发展的轨道,成为赋能经济增长新动力。精准识别财务管理风险中的关键指标及其相互关系,对企业更好地完成数字化转型尤为关键。融合企业人力、运营、财务、环境4个基本维度,从链式传导视角构建转型背景下企业财务管理... 数字化正在重塑经济发展的轨道,成为赋能经济增长新动力。精准识别财务管理风险中的关键指标及其相互关系,对企业更好地完成数字化转型尤为关键。融合企业人力、运营、财务、环境4个基本维度,从链式传导视角构建转型背景下企业财务管理风险指标体系。通过决策试验与评价实验室(DEMATL)法,分析各影响因素之间中心度和原因度关系,并利用解释结构模型(ISM),将矩阵进一步分析得到影响因素的层级划分,归纳影响因素之间的内在指向关系,最后运用交叉影响矩阵相乘(MICMAC)法计算各因素的驱动—依赖关系以判断其属性类别。提出通过D-I-M协同分析的方法,识别财务管理风险路径,为企业进行多链融合数字化转型、规避财务管理风险提供参考。 展开更多
关键词 决策试验与评价实验室法 解释结构模型 交叉影响矩阵相乘法 数字化转型 财务风险
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结合STPA和DEMATEL-ISM的民机起落架收放系统风险研究
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作者 贾宝惠 韩文瑞 +2 位作者 肖海建 高源 陈怡凡 《安全与环境学报》 CAS CSCD 北大核心 2024年第8期2885-2894,共10页
为从系统整体角度完成对起落架收放系统的风险辨识和影响分析,将系统理论过程分析(Systematic Theory Process Analysis,STPA)与决策实验室分析-解释结构模型(Decision Making Trial and Evaluation Laboratory Interpretive Structural... 为从系统整体角度完成对起落架收放系统的风险辨识和影响分析,将系统理论过程分析(Systematic Theory Process Analysis,STPA)与决策实验室分析-解释结构模型(Decision Making Trial and Evaluation Laboratory Interpretive Structural Modeling,DEMATEL-ISM)相结合来开展分析。首先,定义事故和系统级危险,以民机进近阶段放下起落架为例,运用STPA完成对风险因素的系统化辨识;其次,基于最大平均熵减(Maximum Mean De-entropy,MMDE)算法帮助DEMATEL-ISM模型确定阈值,完成对风险因素影响的重要性分析并识别可能引发系统级危险的风险传递路径,据此挖掘关键致因场景,以给出风险预防建议。结果显示:线路性能退化或失效、位置作动控制组件(Position Action Control Unit,PACU)核心处理器故障为关键原因因素,收放作动筒作动异常、机组成员操作不当、起落架指示灯显示异常、起落架液压选择阀作动异常、PACU信息接收有误为关键结果因素,这些因素均涉及多条可能引发系统级危险的风险传递路径,应予以重点控制。 展开更多
关键词 安全工程 起落架收放系统 系统理论过程分析(STPA) 决策实验室分析法(DEMATEL) 解释结构模型(ISM) 关键因素 风险传递路径
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基于MCDM-BPNN的城市内涝风险评价及调蓄池选址
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作者 郝景开 李红艳 +3 位作者 张峰 张翀 毛立波 刘大为 《中国安全科学学报》 CAS CSCD 北大核心 2024年第8期214-221,共8页
为建立一套较为完善的城市内涝风险评价体系,并据此确定调蓄池位置,首先,从积水风险、超载风险和边侧进流量3个维度构建评价指标,设计一种包括改进层次分析法(IAHP)、反熵权法(AEW)和优劣解距离法(TOPSIS)的混合多准则决策框架(MCDM);然... 为建立一套较为完善的城市内涝风险评价体系,并据此确定调蓄池位置,首先,从积水风险、超载风险和边侧进流量3个维度构建评价指标,设计一种包括改进层次分析法(IAHP)、反熵权法(AEW)和优劣解距离法(TOPSIS)的混合多准则决策框架(MCDM);然后,将IAHP-AEW-TOPSIS模型分别与IAHP-TOPSIS、AEW-TOPSIS模型对比,通过斯皮尔曼排序相关系数验证排序一致性,通过计算变异系数、相对极差和灵敏度证实IAHP-AEW-TOPSIS模型的性能;最后,结合反向传播神经网络(BPNN),建立MCDM-BPNN模型,并以山西省某一内涝易发区域为例进行验证。结果表明:积水风险对城市内涝风险评价体系的影响最为显著,所占权重为0.46,其次为超载风险,所占权重为0.36;节点位置与连接管道数量很大程度上对该节点的内涝风险产生影响,在管道汇接处或汇流面积较大处内涝出现更为频繁;IAHP-AEW-TOPSIS模型在样本判别方面具有更好的性能;在5年与10年重现期下,MCDM-BPNN模型验证集准确率分别为93.3%和100%,能够准确快速模拟和预测城市洪水;应用案例设置调蓄池后,高、中、低风险节点数量分别为7、9、30和6、19、21,内涝溢流削减效果显著。 展开更多
关键词 多准则决策框架(MCDM) 反向传播神经网络(BPNN) 城市内涝 风险评价 调蓄池
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Group Decision Making With Consistency of Intuitionistic Fuzzy Preference Relations Under Uncertainty 被引量:1
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作者 Yang Lin Yingming Wang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第3期741-748,共8页
Intuitionistic fuzzy preference relation(IFPR) is a suitable technique to express fuzzy preference information by decision makers(DMs). This paper aims to provide a group decision making method where DMs use the IFPRs... Intuitionistic fuzzy preference relation(IFPR) is a suitable technique to express fuzzy preference information by decision makers(DMs). This paper aims to provide a group decision making method where DMs use the IFPRs to indicate their preferences with uncertain weights. To begin with, a model to derive weight vectors of alternatives from IFPRs based on multiplicative consistency is presented. Specifically, for any IFPR,by minimizing its absolute deviation from the corresponding consistent IFPR, the weight vectors are generated. Secondly,a method to determine relative weights of DMs depending on preference information is developed. After that we prioritize alternatives based on the obtained weights considering the risk preference of DMs. Finally, this approach is applied to the problem of technical risks assessment of armored equipment to illustrate the applicability and superiority of the proposed method. 展开更多
关键词 Group decision making(GDM) intuitionistic fuzzy preference relation(IFPR) intuitionistic fuzzy set(IFS) multiplicative consistency risk preference uncertain weights
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基于多准则决策的不同剂量瑞马唑仑联合阿芬太尼应用于无痛人工流产术的风险-效益评价
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作者 林卫欣 孙虎 +2 位作者 吕淞 陈乔芳 徐志新 《发育医学电子杂志》 2024年第5期328-336,共9页
目的基于多准则决策模型来评价不同剂量瑞马唑仑联合阿芬太尼应用于无痛人工流产术的风险-效益。方法前瞻性选取2020年6月至2022年2月在海南医学院第二附属医院进行人工流产术的136例孕妇作为研究对象,根据随机数字表法将孕妇分为A组、... 目的基于多准则决策模型来评价不同剂量瑞马唑仑联合阿芬太尼应用于无痛人工流产术的风险-效益。方法前瞻性选取2020年6月至2022年2月在海南医学院第二附属医院进行人工流产术的136例孕妇作为研究对象,根据随机数字表法将孕妇分为A组、B组、C组和D组,每组各34例。A组孕妇采用丙泊酚联合阿芬太尼麻醉,B组、C组和D组孕妇分别采用不同剂量(0.1 mg/kg、0.15 mg/kg、0.2 mg/kg)瑞马唑仑联合阿芬太尼麻醉。建立无痛人工流产麻醉效果的多准则决策模型。统计学方法采用独立样本t检验、方差分析、χ^(2)检验。结果D组孕妇的麻醉起效时间短于A组和B组[(1.6±0.4)min与(2.3±0.6)min、(2.0±0.4)min,t值分别为2.634、2.548,P值均<0.05)]。D组孕妇术后疼痛视觉模拟评分(visual analogue scale,VAS)低于A组、B组和C组[(3.8±0.3)分与(4.5±0.8)分、(4.7±0.8)分、(4.5±0.5)分,t值分别为4.085、3.293、3.169,P值均<0.05)]。A组和D组孕妇的Ramsay评分分别为(5.4±0.5)分和(5.4±0.5)分,均高于B组[(4.6±0.4)分]和C组[(4.8±0.4)分](A组和B组、C组间的t值分别为3.516、3.748,D组和B组、C组间的t值分别为3.976、4.526,P值均<0.05)。麻醉后(T1),A组孕妇的平均动脉压(meanarterialpressure,MAP)为(59.4±4.4)mmHg(1mmHg=0.133kPa)、心率(heartrate,HR)为(73.3±6.3)次/min、血氧饱和度(oxygensaturation,SpO_(2))为(87.2±4.4)%、呼吸频率(respiratory rate,RR)为(11.4±2.3)次/min、脑电双频指数(bispectral index,BIS)为56.3±5.8,波动幅度较其他3组显著(A组和B组间的t值分别为8.237、2.835、2.823、2.857、3.257,A组和C组间的t值分别为8.574、2.674、2.457、2.632、3.485,A组和D组间的t值分别为8.634、2.823、2.162、2.934、5.238,P值均<0.05)。应用Meta分析方法分别合并4组的结果发现,与A组、B组、C组相比,D组孕妇的麻醉起效时间、Ramsay评分、术后VAS评分、MAP、HR、SpO_(2)、RR以及BIS均显著改善,总有效率显著升高,不良反应发生率显著降低,表明D组麻醉效果较好。通过计算4组的效益值、风险值以及风险-效益总值,结果显示,D组的效益高、风险低。当效益与风险都很重要时,D组麻醉方法的风险-效益总值最高,无论风险-效益的相对权重如何改变,模型评价结果均保持不变,说明该模型稳定性良好。结论在无痛人工流产术中,0.2 mg/kg瑞马唑仑联合阿芬太尼的麻醉效果较好,可有效维持生命体征平稳,并降低不良反应发生率。 展开更多
关键词 多准则决策 无痛人工流产 瑞马唑仑 阿芬太尼 效益 风险
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基于多准则决策的替格瑞洛联合替罗非班治疗急性冠脉综合征的风险-效益评价
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作者 佟亚男 冯建双 汤秀英 《心脏杂志》 CAS 2024年第3期283-288,共6页
目的基于多准则决策(MCDM)模型评价替格瑞洛联合替罗非班治疗急性冠脉综合征(ACS)的风险与效益。方法选取2019年12月~2022年2月于秦皇岛市第一医院就诊的ACS患者(n=136)为研究对象;根据随机数字表法,分为A组(n=68,替格瑞洛+替罗非班)和B... 目的基于多准则决策(MCDM)模型评价替格瑞洛联合替罗非班治疗急性冠脉综合征(ACS)的风险与效益。方法选取2019年12月~2022年2月于秦皇岛市第一医院就诊的ACS患者(n=136)为研究对象;根据随机数字表法,分为A组(n=68,替格瑞洛+替罗非班)和B组(n=68,替格瑞洛)。建立治疗ACS的MCDM模型。结果治疗后,与B组相比,A组患者的左室射血分数(LVEF)、活化部分凝血活酶时间(APTT)以及总有效率更大(均P<0.01),左室收缩末内径(LVESd)、左室舒张末内径(LVEDd)、D-二聚体(D-D)、纤维蛋白原(FIB)、基质金属蛋白酶-9(MMP-9)、髓过氧化物酶(MPO)、主要不良心血管事件(MACE)(均P<0.01)以及不良反应(ADR)发生率(P<0.05)更小。Meta分析结果发现,与B组相比,A组疗效更显著,对改善心功能、凝血功能以及炎性反应更有优势,MACE以及ADR发生概率显著降低。计算结果显示,A组效益高且风险低,效益-风险总值为65,B组为53,且A组100%优于B组。结论对于ACS患者的治疗,替格瑞洛联合替罗非班效果较好,可显著改善凝血以及心功能,减轻炎性反应,并降低MACE以及ADR发生概率。 展开更多
关键词 多准则决策 急性冠脉综合征 替格瑞洛 替罗非班 效益 风险
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基于多准则决策模型评价芪苈强心胶囊联合铁剂治疗心力衰竭合并缺铁性贫血的效益-风险
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作者 孙小燕 杨雷 +6 位作者 王蕾 屈伶玉 赵玉清 狄巨岚 刘学英 柴志强 吴泽阳 《西部中医药》 2024年第10期109-114,共6页
目的:基于多准则决策模型评价芪苈强心胶囊联合铁剂治疗心力衰竭合并缺铁性贫血的效益-风险。方法:将80例心力衰竭合并缺铁性贫血患者按随机数字表法分为对照组和研究组各40例。对照组在常规治疗基础上予芪苈强心胶囊,研究组在对照组治... 目的:基于多准则决策模型评价芪苈强心胶囊联合铁剂治疗心力衰竭合并缺铁性贫血的效益-风险。方法:将80例心力衰竭合并缺铁性贫血患者按随机数字表法分为对照组和研究组各40例。对照组在常规治疗基础上予芪苈强心胶囊,研究组在对照组治疗基础上联合铁剂治疗,持续治疗3个月。比较两组患者治疗前后6分钟步行试验的步行距离(the six minutes walking distance,6MWD)、左心室收缩末期内径(left ventricular end systolic diameter,LVESD)、左心室舒张末期内径(left ventricular enddiastolic dimension,LVEDD)、左心室射血分数(left ventricular ejection fraction,LVEF),血清内N末端B型利尿钠肽原(N-terminal B-type prodiuretic natriuretic peptide,NT-proBNP)和超敏C反应蛋白(high-sensitivity C-reactive protein,hs-CRP)表达水平。建立芪苈强心胶囊联合铁剂治疗心力衰竭合并缺铁性贫血多准则决策分析模型。比较两组效益指标和风险指标效应值,并评价模型的灵敏度。结果:治疗后,研究组患者LVESD、LVEDD及血清NT-proBNP、hs-CRP水平均低于对照组(P<0.05),而6MWD、LVEF高于对照组(P<0.05);研究组总有效率[90.00%(36/40)]高于对照组[77.50%(31/40)](P<0.05);研究组不良反应发生率[10.00%(4/40)]低于对照组[30.00%(12/40)](P<0.05);研究组和对照组的效益值分别为83和47,风险值分别为26和25,效益-风险总值分别为55和36,研究组的效益-风险总值最高;无论效益-风险的相对权重如何改变,模型评价结果均保持不变。结论:芪苈强心胶囊联合铁剂能有效改善心力衰竭合并缺铁性贫血患者的预后,降低患者不良反应发生率。 展开更多
关键词 心力衰竭 缺铁性贫血 芪苈强心胶囊 多准则决策分析 效益 风险
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基于机器学习的居民贫困风险预测模型研究--以某地区贫困户统计数据为例
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作者 杨宏奎 《科技创新与生产力》 2024年第9期85-88,共4页
本文指出居民贫困风险预测对于保障社会和谐稳定具有重要意义。本文基于机器学习技术,利用某地区贫困户的多维度统计数据,构建了贫困风险预测模型。通过对户主信息、家庭特征、致贫原因、生产条件等的综合分析,模型能够精准识别潜在贫... 本文指出居民贫困风险预测对于保障社会和谐稳定具有重要意义。本文基于机器学习技术,利用某地区贫困户的多维度统计数据,构建了贫困风险预测模型。通过对户主信息、家庭特征、致贫原因、生产条件等的综合分析,模型能够精准识别潜在贫困风险群体,提高扶贫工作的针对性和有效性。这不仅为政策制定提供了科学依据,有助于实现精准扶贫,促进地区可持续发展,也为其他类似地区的贫困风险预测提供了借鉴和参考,具有重要的理论意义和实践价值。 展开更多
关键词 机器学习 决策树 贫困风险统计 精准扶贫
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GIS Application in Urban Flood Risk Analysis: Midar as a Case Study
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作者 Adil Akallouch Ayoub Al Mashoudi +1 位作者 Mouloud Ziani Rachid Elhani 《Open Journal of Ecology》 2024年第2期148-164,共17页
The significance of this study lies in its exploration of the advanced applications of Geographic Information Systems (GIS) in assessing urban flood risks, with a specific focus on Midar, Morocco. This research is piv... The significance of this study lies in its exploration of the advanced applications of Geographic Information Systems (GIS) in assessing urban flood risks, with a specific focus on Midar, Morocco. This research is pivotal as it showcases that GIS technology is not just a tool for mapping, but a critical component in urban planning and emergency management strategies. By meticulously identifying and mapping flood-prone areas in Midar, the study provides invaluable insights into the potential vulnerabilities of urban landscapes to flooding. Moreover, this research demonstrates the practical utility of GIS in mitigating material losses, a significant concern in flood-prone urban areas. The proactive approach proposed in this study, centered around the use of GIS, aims to safeguard Midar’s population and infrastructure from the devastating impacts of floods. This approach serves as a model for other urban areas facing similar challenges, highlighting the indispensable role of GIS in disaster preparedness and response. Overall, the study underscores the transformative potential of GIS in enhancing urban resilience, making it a crucial tool in the fight against natural disasters like floods. 展开更多
关键词 Geographic Information Systems risk Assessment Models Hydrological Modeling Urban Planning decision-making Methods Urban Centers
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基于DEMATEL-ISM的直升机电力巡检安全风险评估研究 被引量:1
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作者 郑娟娟 佀庆民 +1 位作者 王振全 张黎 《科学技术创新》 2023年第6期193-197,共5页
为了降低直升机在电力巡检过程中的安全风险,运用决策实验室分析法(DEMATEL)和解释结构模型法(ISM),从人员、直升机设备、自然环境、机场环境、组织等几个方面分析影响巡检安全的因素以及其对巡检安全的影响程度,建立多级递阶结构模型... 为了降低直升机在电力巡检过程中的安全风险,运用决策实验室分析法(DEMATEL)和解释结构模型法(ISM),从人员、直升机设备、自然环境、机场环境、组织等几个方面分析影响巡检安全的因素以及其对巡检安全的影响程度,建立多级递阶结构模型。模型表明,身体状态、资质技术水平、天气条件、地形条件和安全责任意识为影响直升机电力巡检安全的深层因素,该研究结果对直升机线路巡航安全保障具有重要的意义。 展开更多
关键词 安全风险 直升机电力巡检 决策实验室法 解释结构模型法
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基于DEMATEL-ISM-MICMAC的城市人员密集场所风险因素研究 被引量:2
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作者 成连华 李楠 李树刚 《武汉理工大学学报(信息与管理工程版)》 CAS 2023年第5期668-674,共7页
为科学地评估城市人员密集场所风险,提高城市人员密集场所的安全性。运用扎根理论对25起典型城市人员密集场所事故案例进行三级编码,提取出16个风险因素。在此基础上利用决策实验室分析法(DEMATEL)方法分析16个因素之间的关联特征,应用... 为科学地评估城市人员密集场所风险,提高城市人员密集场所的安全性。运用扎根理论对25起典型城市人员密集场所事故案例进行三级编码,提取出16个风险因素。在此基础上利用决策实验室分析法(DEMATEL)方法分析16个因素之间的关联特征,应用解释结构模型(ISM)分析风险因素层级特征从而得到多层递阶结构模型,运用交叉影响矩阵相乘法(MICMAC)分析风险因素的属性特征,并绘制出象限图。结果表明:人群扰动行为、人群密度和流动速度、指示标志是城市人员密集场所事故发生的直接原因;管理者应对能力、安保机构及管理状况、安全检查是事故发生的根本原因。研究结果可为城市人员密集区域安全风险有效预警及管控提供有力的参考依据。 展开更多
关键词 城市人员密集场所 扎根理论 风险因素 决策实验室分析法 解释结构模型
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