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相似系数的指标综合法及其应用 被引量:1
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作者 徐德义 夏明远 刘贤龙 《华中师范大学学报(自然科学版)》 CAS CSCD 1995年第2期155-157,共3页
给出了Fuzzy动态聚类中两个样本归于同一类的充要条件,提出了相似系数的指标综合法,并将它成功地应用在我国部分省市中抽取的油菜样本的分类中.
关键词 指标综合法 相似系数 模糊动态聚类
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多指标综合方法评价福州地区12岁男生的生长发育水平
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作者 郑增建 田俊 陈建玲 《福建医学院学报》 1989年第1期22-24,共3页
本文随机抽取150名12岁福州地区中学生生长发育调查资料,根据其身高、体重、胸围的测量值,应用椭球方程代数表达式,建立福州地区12岁男生生长发育的9s%正常值范围作为生长发育评价际准。
关键词 指标综合法 中学生 生长发育
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指标概率综合风险评价方法研究
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作者 张锦伟 郑青川 +1 位作者 辜冬梅 廖亚奇 《石油工业技术监督》 2015年第5期31-34,39,共5页
针对半定量与定量风险评价方法的优缺点,提出指标概率综合风险评价新方法(简称I-P法)。该方法不仅能够克服半定量评价法容易产生"避重就轻"现象的弊端,又能克服定量评价法中因缺失指标失效概率而无法应用的不足。I-P法下层指... 针对半定量与定量风险评价方法的优缺点,提出指标概率综合风险评价新方法(简称I-P法)。该方法不仅能够克服半定量评价法容易产生"避重就轻"现象的弊端,又能克服定量评价法中因缺失指标失效概率而无法应用的不足。I-P法下层指标采用基于专家经验的指标评价方法,而后利用BP神经网络方法建立指标相对分值d与失效概率Pf(i)的关系曲线,依据此曲线将指标分值转化为失效概率,并对上层指标采用基于失效概率的定量评价。采用该方法对某管道的河沟道水毁进行了风险评价,结果表明,该方法能够解决在某些特殊条件下基于指标评价法的结论与管道实际风险状态不一致的问题。 展开更多
关键词 风险评价 指标概率综合法 河沟道水毁 失效概率 BP神经网络
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安徽省干旱危险性评价及等级划分
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作者 常伊婷 蒋尚明 +4 位作者 崔毅 金菊良 汪洁 陈浩 沈勇 《华北水利水电大学学报(自然科学版)》 北大核心 2024年第6期41-48,73,共9页
区域干旱危险性评价是实现旱灾风险管理的基础,可为防旱减灾工作提供科学有效的决策依据。选取安徽省104个县级行政区的水资源量和降水量数据,采用指标综合评估法构建了基于危险性指数的干旱危险性定量评价方法,对安徽省各县区的干旱危... 区域干旱危险性评价是实现旱灾风险管理的基础,可为防旱减灾工作提供科学有效的决策依据。选取安徽省104个县级行政区的水资源量和降水量数据,采用指标综合评估法构建了基于危险性指数的干旱危险性定量评价方法,对安徽省各县区的干旱危险性进行了评价,得到了安徽省干旱危险性等级分布图。结果表明:基于水资源量和降水量数据的计算结果绘制的县域干旱危险性区划图中,除个别县区的危险性等级分布有所差异外,安徽省干旱危险性等级分布由北到南逐渐降低;安徽省干旱危险性程度的总体变化趋势与其自然地理分布紧密相关,并且受到社会发展的影响。研究结果可为安徽省旱灾风险区划提供支撑。 展开更多
关键词 干旱危险性评价 干旱危险性区划 干旱危险性指数 指标综合法 安徽省
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三峡库区秭归县可持续发展水平测度的指标体系 被引量:1
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作者 张玉 宁大同 《北京师范大学学报(自然科学版)》 CAS CSCD 北大核心 1998年第2期264-268,共5页
县域可持续发展要求县域复合大系统中各子系统内部及各子系统之间实现可持续发展.将复合大系统分解为产业经济子系统、自然资源子系统、生态环境子系统、人口子系统.在确立衡量县域可持续发展标准的基础上,以三峡库区秭归县为例,运... 县域可持续发展要求县域复合大系统中各子系统内部及各子系统之间实现可持续发展.将复合大系统分解为产业经济子系统、自然资源子系统、生态环境子系统、人口子系统.在确立衡量县域可持续发展标准的基础上,以三峡库区秭归县为例,运用多指标层次法建立了秭归县可持续发展水平测度的指标体系. 展开更多
关键词 可持续发展 指标体系 县域 指标综合法
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GIS支持下的村镇建设用地再开发适宜性评价 被引量:8
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作者 李武龙 张志强 张新长 《测绘通报》 CSCD 北大核心 2016年第8期99-103,共5页
近年来,随着城市土地资源供需矛盾的日益突出,村镇建设用地再开发逐渐得到城市管理者的广泛关注。本文从村镇建设用地节约集约利用程度评价和土地开发适宜性评价两方面入手,以GIS技术为支撑,提出了一套村镇建设用地再开发适宜性评价指... 近年来,随着城市土地资源供需矛盾的日益突出,村镇建设用地再开发逐渐得到城市管理者的广泛关注。本文从村镇建设用地节约集约利用程度评价和土地开发适宜性评价两方面入手,以GIS技术为支撑,提出了一套村镇建设用地再开发适宜性评价指标体系,选用单指标量化-多指标综合法作为评价方法、德尔菲法作为权重确定方法,构建了基于GIS的村镇建设用地再开发适宜性评价体系。以改造前(2007年)的广佛国际商贸城中心区2号地块为例进行实例验证,结果表明,该地块处于"基本适宜"等级,与实际情况相符。 展开更多
关键词 GIS 村镇建设用地 再开发 适宜性 指标体系 指标量化-多指标综合法
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Investigation and Risk Assessment of Alien Invasive Plants in Riparian Zone of Dongjiang River 被引量:2
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作者 付岚 赵鸣飞 +1 位作者 龚玲 刘全儒 《Agricultural Science & Technology》 CAS 2011年第12期1897-1904,共8页
[Objective] The aim was to conduct investigation and risk assessment of the alien invasive plants in riparian zone of Dongjiang River.[Method] The field survey was carried out by the combination methods of sampling pl... [Objective] The aim was to conduct investigation and risk assessment of the alien invasive plants in riparian zone of Dongjiang River.[Method] The field survey was carried out by the combination methods of sampling plots investigation and route survey,and the whole Dongjiang River was covered.52 sampling points were set in the main streams,and 87 sampling points in tributaries streams,624 quadrats were set in total;multi-index comprehensive evaluation method was adopted for the risk assessment with 6 first-level indexes and 25 second-level indexes.[Result] Through the investigation on the riparian zone of Dongjiang River for 2 years,51 species of alien invasive plants were found,belonging to 17 families and 38 genera.The risk level assessment results of these 51 species showed that 18 species,such as Ageratum conyzoides,belonged to high-level risk with over 60 points;26 species,such as Chenopodium ambrosioides,were between 30 and 60 points which belonged to middle-level risk;7 species,such as Paspalum dilatatum,with less than 30 points belonged to low-level risk.[Conclusion] Basic data on the protection,water environmental management and functional zoning of riparian zone of Dongjiang River were provided. 展开更多
关键词 Alien invasive plants Dongjiang River Risk assessment Multi-index comprehensive evaluation
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美国预警卫星威胁评估问题研究 被引量:2
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作者 张安理 李智 丰华 《航天电子对抗》 2016年第2期25-28,36,共5页
预警卫星威胁评估是导弹作战指挥辅助决策的重要环节。首先描述了美国新一代预警卫星系统现状,然后阐释了预警卫星威胁评估的基本内涵,并分析了目前预警卫星威胁评估中存在的不足。针对高低轨预警卫星的不同功能和特点,分别提出了采用... 预警卫星威胁评估是导弹作战指挥辅助决策的重要环节。首先描述了美国新一代预警卫星系统现状,然后阐释了预警卫星威胁评估的基本内涵,并分析了目前预警卫星威胁评估中存在的不足。针对高低轨预警卫星的不同功能和特点,分别提出了采用多指标综合法和威胁度函数法的威胁评估方法,并论述了各评估方法中涉及到的评估思路、评估步骤以及评估模型等内容,可以为预警卫星威胁评估提供思路和借鉴。 展开更多
关键词 威胁评估 预警卫星 基本内涵 指标综合法 威胁度函数
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绿色产品认证实施效果评价--以浙江湖州为例
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作者 周克 曹永峰 +1 位作者 王怀庭 程兆麟 《湖州师范学院学报》 2021年第9期1-7,共7页
推广绿色产品认证是实现“碳中和”“碳达峰”的重要手段。作为全国唯一绿色产品认证试点城市,湖州的绿色产品认证实施过程和效果具有代表性。对湖州绿色产品认证进行评价和分析,探讨其中存在的问题,进而提出相应的对策建议,可以为全国... 推广绿色产品认证是实现“碳中和”“碳达峰”的重要手段。作为全国唯一绿色产品认证试点城市,湖州的绿色产品认证实施过程和效果具有代表性。对湖州绿色产品认证进行评价和分析,探讨其中存在的问题,进而提出相应的对策建议,可以为全国其它地区推广绿色产品认证提供参考依据。 展开更多
关键词 绿色产品认证 碳中和 碳达峰 指标评分加权综合法
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Urban Construction Land Suitability Evaluation Based on Improved Multi-criteria Evaluation Based on GIS(MCE-GIS): Case of New Hefei City,China 被引量:21
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作者 ZHANG Xiaorui FANG Chuanglin +1 位作者 WANG Zhenbo MA Haitao 《Chinese Geographical Science》 SCIE CSCD 2013年第6期740-753,共14页
Urban construction land suitability evaluation (UCLSE) is a complex system engineering and the basis for rational use of the limited urban land resources in China. It has an important practical value on urban constr... Urban construction land suitability evaluation (UCLSE) is a complex system engineering and the basis for rational use of the limited urban land resources in China. It has an important practical value on urban construction land use planning and management from the angle of methodology. As a widely used technique, traditional multi-criteria evaluation based on GIS (MCE-GIS), is not suitable for UCLSE. This study develops an improved MCE-GIS method which could be more suitable for UCLSE based on urban complex ecological system theory and the summary of the shortcomings of traditional MCE-GIS. The improvements include three aspects: a composite evaluation index system rather than natural indexes alone, an index weight calculated by using fuzzy Analytic Hierarchy Process (AHP) method rather than the common AHP method, and the integrated overlay rule, which includes selecting the minimum value, weighted linear combination (WLC) and simple summation. The main advantage of this improved technique is that it can make UCLSE more comprehensive, more operational and more reasonable. It can provide a scientific basis for decision making in the planning and management of urban construction land use. The improved MCE-GIS system has been adopted in the New Hefei City, Anhui Province, China. Based on the results of UCLSE in New Hefei, three functional areas including construction-appropriate areas, construction-restricted areas and construction-forbidden areas could be worked out, in which 36.90% of the total study area could be developed as urban construction land and the remaining 63.10% should be protected as reserves land or as ecological land. Furthermore, the results can orovide scientific decision suooort for spatial planning and eco-environment nrotection in New Hefei. 展开更多
关键词 urban construction land suitability evaluation (UCLSE) multi-criteria evaluation based on GIS (MCE-G1S) New Hefei
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Preliminary study on road-region ecosystem stability evaluation 被引量:1
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作者 QIN Zhi-bin LIU Zhao-hui LI Yu-zhi 《Journal of Environmental Science and Engineering》 2008年第5期48-54,共7页
A scientific and rational evaluation on road-region ecosystem stability is the premise to properly deal with the relationship between highway constructing and ecological environment protecting to a sustainable develop... A scientific and rational evaluation on road-region ecosystem stability is the premise to properly deal with the relationship between highway constructing and ecological environment protecting to a sustainable development. Based on the connotative meaning and the procedure of evaluation on road-region ecosystem stability, this paper studied the principles and the method on determining the evaluation index system on road-region ecosystem stability. It put forward an index system for assessing road-region ecosystem stability as a reference. On the basis of detailed analyze of the multidimensional space of road-region ecosystem, a new multi-objective comprehensive evaluation method for road-region ecosystem stability is presented and a calculation tormula for multi-objective comprehensive level of road-region ecosystem stability. This method was used to evaluate road-region ecosystem stability of Lin-Chang highway. This method possessed definite theoretical value and reliability in practice. 展开更多
关键词 road-region ecosystem evaluation of stability MULTI-OBJECTIVE multidimensional space
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Risk assessment study on bridge foundation in deep overlying stratum 被引量:2
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作者 Zhang Xiangqun Wang Jingguo Liu Manhong 《Engineering Sciences》 EI 2012年第3期38-43,共6页
Based on the analysis about the hydrogeological conditions and engineering geological conditions, this paper makes analysis on the possible risks of the deep overlying stratum foundation and establishes the risk evalu... Based on the analysis about the hydrogeological conditions and engineering geological conditions, this paper makes analysis on the possible risks of the deep overlying stratum foundation and establishes the risk evaluation index system during the foundation operating period. Such methods as analytic hierarchy process (AHP) , Delphi method and fuzzy comprehensive evaluation method are adopted to make the quantitative analysis on the risk factors and establish the risk judgment model. According to the actual engineering of Taizhou Bridge, the paper evaluates the risk of the foundation during the operating period at the condition of deep overlying stratum. The evaluation results can provide the reference for the risk management of the bridge foundation durin~ the ooerating period. 展开更多
关键词 risk assessment deep overlying stratum suspension bridge AHP
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Optimization model of unascertained measurement for underground mining method selection and its application 被引量:6
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作者 刘爱华 董蕾 董陇军 《Journal of Central South University》 SCIE EI CAS 2010年第4期744-749,共6页
An optimization model of underground mining method selection was established on the basis of the unascertained measurement theory.Considering the geologic conditions,technology,economy and safety production,ten main f... An optimization model of underground mining method selection was established on the basis of the unascertained measurement theory.Considering the geologic conditions,technology,economy and safety production,ten main factors influencing the selection of mining method were taken into account,and the comprehensive evaluation index system of mining method selection was constructed.The unascertained evaluation indices corresponding to the selected factors for the actual situation were solved both qualitatively and quantitatively.New measurement standards were constructed.Then,the unascertained measurement function of each evaluation index was established.The index weights of the factors were calculated by entropy theory,and credible degree recognition criteria were established according to the unascertained measurement theory.The results of mining method evaluation were obtained using the credible degree criteria,thus the best underground mining method was determined.Furthermore,this model was employed for the comprehensive evaluation and selection of the chosen standard mining methods in Xinli Gold Mine in Sanshandao of China.The results show that the relative superiority degrees of mining methods can be calculated using the unascertained measurement optimization model,so the optimal method can be easily determined.Meanwhile,the proposed method can take into account large amount of uncertain information in mining method selection,which can provide an effective way for selecting the optimal underground mining method. 展开更多
关键词 mining engineering underground mining method optimization model unascertained measurement theory information entropy
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The risk assessment of disasters induced by typhoons in Shandong province based on historical data during 1985-2010
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作者 YUE Xinyang SHI Xiaoxiao GENG Shanshan 《Marine Science Bulletin》 2022年第1期34-46,共13页
In the present paper,the risk assessment of disasters induced by typhoons in Shandong Province has been carried out based on the basis of the analyses of the historical data during 1985-2010.In order to reduce the imp... In the present paper,the risk assessment of disasters induced by typhoons in Shandong Province has been carried out based on the basis of the analyses of the historical data during 1985-2010.In order to reduce the impact of the social and economic development status on the evaluation results in various periods,the normalized evaluation method was used to analyze the annual typhoon-induced damage in the concerned period.The quantitative comprehensive index is proposed with fuzzy mathematics,and the effect of typhoon-induced disasters is systematically investigated with the proposed index.In the analyses of the various hazard factors,the damage induced by the typhoon is combined with human and social factors,and further is comprehensively analyzed based on a GIS platform.The assessment results indicate that the normalized damage induced by typhoons presents the downward trend year by year and regional differences with significant temporal-spatial characteristics.The results of the present study are expected to be beneficial to disaster prevention and mitigation in Shandong Province. 展开更多
关键词 typhoon-induced disaster assessment normalized evaluation method comprehensive evaluation index geography information system(GIS)
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Optimization Analysis on Comprehensive Evaluation Index of Wetland Parks
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作者 Yanyan ZHANG Fanlong KONG +1 位作者 Min XI Yue LI 《Agricultural Science & Technology》 CAS 2016年第3期721-723,736,共4页
Wetland park is an important mode of wetland protection, meanwhile, construction of comprehensive index system has become the hotspot and keystone of the researches on Wetland Parks. Basing on different development st... Wetland park is an important mode of wetland protection, meanwhile, construction of comprehensive index system has become the hotspot and keystone of the researches on Wetland Parks. Basing on different development stages, this paper firstly divided the Wetland Parks into three categories, including the start-up stage, the development stage and the refinement stage. And then screened and identified the direction and keypoints of comprehensive evaluation for wetland parks in different development stages using expert scoring, questionnaire and analytic hierarchy process(AHP). 展开更多
关键词 Wetland Parks Comprehensive evaluation index Optimization analysis
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GA-SVC model and application of comprehensive evaluation of coal mine essential safety management
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作者 Zhi-Jun WANG Rui-Lin ZHANG Wen-Ting SONG 《Journal of Coal Science & Engineering(China)》 2013年第2期226-230,共5页
In order to evaluate the level of the coal mine essential safety management, the comprehensive index system was designed base on the connotation principle of the mine essential safety management. Due to the disadvanta... In order to evaluate the level of the coal mine essential safety management, the comprehensive index system was designed base on the connotation principle of the mine essential safety management. Due to the disadvantage of index weight setting by subjective idea in the former method, support vector classification algorithm was used to assess the level of coal mine essential safety management. According to the advantages of the global search capability of the genetic algorithm, support vector classification parameters optimization method was proposed based on genetic algorithm, and genetic algorithm-support vector classification model of coal mine essential safety management assessment was established. Learning samples were constructed on the basis of former data of mine essential safety management evaluation. The test results show that the genetic algorithm-support vector classification model has higher evaluation accuracy and good generalization ability, and the advantage of no need for artificial setting of index weight and absence of the subjective factors influence to evaluation results. 展开更多
关键词 mine safety essential safety management comprehensive assessment support vector classification genetic algorithm
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On the Laws and Causes of Socio-economic Territorial Differentiation in Minority Areas in China
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作者 Xue Mei Dong Suocheng 《Chinese Journal of Population,Resources and Environment》 2009年第1期30-36,共7页
On the basis of applying quantitative and qualitative approaches as well as GIS technology, this paper established an index system to make a comprehensive evaluation on socio-economic development of minority areas in ... On the basis of applying quantitative and qualitative approaches as well as GIS technology, this paper established an index system to make a comprehensive evaluation on socio-economic development of minority areas in China. The result showed that socio-economic development in minority area presents a series of characteristics that the north is high and the south is low, center-margin pattern is obvious and the areas with middle and lower development indices are distributed centrally and continuously. However, the causes of the socio-economic characteristics mainly include natural conditions, economic development basic, population cultural quality, re-gional combination and development conditions of mineral and energy resources, informal institutional factors and distribution of major traffic lines.. 展开更多
关键词 minority areas socio-economic development laws of territorial differentiation
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A Research on Evaluation System of Enterprise Logistics Management Maturity
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作者 Dan Wang 《International English Education Research》 2015年第11期68-72,共5页
Comprehensive measure and objectively reflect the maturity of enterprise logistics management is an important topic in business management. This paper, based on fuzzy evaluation method, constructs the evaluation index... Comprehensive measure and objectively reflect the maturity of enterprise logistics management is an important topic in business management. This paper, based on fuzzy evaluation method, constructs the evaluation index system of enterprise logistics management maturity, takes production-oriented enterprises for example, and explores the establishment of enterprise logistics management maturity evaluation system. 展开更多
关键词 Enterprise Logistics Management Maturity Fuzzy Evaluation Method
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Research on Holistic Index Method of Geography Markup Language
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作者 ZHANG Haitao YUAN Lifeng JIANG Jie 《Geo-Spatial Information Science》 2009年第4期251-256,共6页
Currently, the OGC GML (Geography Markup Language) specification has been the de facto standard for GIS data sharing and exchanging and spatial interoperation. Adopting nested association expression approach of XML ... Currently, the OGC GML (Geography Markup Language) specification has been the de facto standard for GIS data sharing and exchanging and spatial interoperation. Adopting nested association expression approach of XML data, GML data documents can store both spatial information and semantic relationship information of geographical elements. To improve the efficiency of path query on GML two type information, the paper describes a holistic index method for GML data, which we call EKR^+ (optimized R+-tree base on Extend Region Code and K-means extent partition of GML feature elements). The experiment results show that the efficiency of semantic-spatial query can be improved greatly by utilizing EKR^+. 展开更多
关键词 GML extend region code semantic-spatial query
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