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Suzuki-Type(μ,v)-Weak Contraction for the Hesitant Fuzzy Soft Set Valued Mappings with Applications in Decision Making
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作者 Muhammad Sarwar Rafiq Alam +2 位作者 Kamaleldin Abodayeh Saowaluck Chasreechai Thanin Sitthiwirattham 《Computer Modeling in Engineering & Sciences》 2025年第5期2213-2236,共24页
In this manuscript,the notion of a hesitant fuzzy soft fixed point is introduced.Using this notion and the concept of Suzuki-type(μ,ν)-weak contraction for hesitant fuzzy soft set valued-mapping,some fixed point res... In this manuscript,the notion of a hesitant fuzzy soft fixed point is introduced.Using this notion and the concept of Suzuki-type(μ,ν)-weak contraction for hesitant fuzzy soft set valued-mapping,some fixed point results are established in the framework of metric spaces.Based on the presented work,some examples reflecting decision-making problems related to real life are also solved.The suggested method’s flexibility and efficacy compared to conventional techniques are demonstrated in decision-making situations involving uncertainty,such as choosing the best options in multi-criteria settings.We noted that the presented work combines and generalizes two major concepts,the idea of soft sets and hesitant fuzzy set-valued mapping from the existing literature. 展开更多
关键词 Hesitant fuzzy soft set valued mapping Suzuki-type(μ ν)-weak contraction fixed point decision making problem
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FFD-Clustering:An unsupervised anomaly detection method for aero-engines based on fuzzy fusion of variables and discriminative mapping of features
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作者 Zhe WANG Xuyun FU +2 位作者 Minghang ZHAO Xiangzhao XIA Shisheng ZHONG 《Chinese Journal of Aeronautics》 2025年第5期202-231,共30页
The original monitoring data from aero-engines possess characteristics such as high dimen-sionality,strong noise,and imbalance,which present substantial challenges to traditional anomalydetection methods.In response,t... The original monitoring data from aero-engines possess characteristics such as high dimen-sionality,strong noise,and imbalance,which present substantial challenges to traditional anomalydetection methods.In response,this paper proposes a method based on Fuzzy Fusion of variablesand Discriminant mapping of features for Clustering(FFD-Clustering)to detect anomalies in originalmonitoring data from Aircraft Communication Addressing and Reporting System(ACARS).Firstly,associated variables are fuzzily grouped to extract the underlying distribution characteristics and trendsfrom the data.Secondly,a multi-layer contrastive denoising-based feature Fusion Encoding Network(FEN)is designed for each variable group,which can construct representative features for each variablegroup through eliminating strong noise and complex interrelations between variables.Thirdly,a featureDiscriminative Mapping Network(DMN)based on reconstruction difference re-clustering is designed,which can distinguish dissimilar feature vectors when mapping representative features to a unified fea-ture space.Finally,the K-means clustering is used to detect the abnormal feature vectors in the unifiedfeature space.Additionally,the algorithm is capable of reconstructing identified abnormal vectors,thereby locating the abnormal variable groups.The performance of this algorithm was tested ontwo public datasets and real original monitoring data from four aero-engines'ACARS,demonstratingits superiority and application potential in aero-engine anomaly detection. 展开更多
关键词 AERO-ENGINE Anomaly detection UNSUPERVISED fuzzy fusion Discriminativ emapping
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3.0T磁共振T2 mapping序列联合血清新饱食分子蛋白1水平检测在老年膝关节早期骨关节炎诊断中的应用价值
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作者 唐利 巩玉荣 +2 位作者 曾立叶 高艳芳 邓成哲 《实用医学杂志》 北大核心 2025年第8期1238-1242,共5页
目的探讨3.0 T磁共振(MRI)T2 mapping序列联合血清新饱食分子蛋白1(nesfatin-1)水平对老年膝关节早期骨关节炎(OA)的诊断价值。方法选取2023年5月至2024年5月医院收治的膝关节OA的97例老年患者(OA组)和52例同期老年体检者(对照组),根据... 目的探讨3.0 T磁共振(MRI)T2 mapping序列联合血清新饱食分子蛋白1(nesfatin-1)水平对老年膝关节早期骨关节炎(OA)的诊断价值。方法选取2023年5月至2024年5月医院收治的膝关节OA的97例老年患者(OA组)和52例同期老年体检者(对照组),根据X线结果将膝关节OA组分为早期组和非早期组,均接受3.0T MRI T2 mapping序列扫描检测膝关节软骨区域T2值,检测血清nesfatin-1水平,比较上述指标差异并采用ROC曲线分析其对老年膝关节早期OA的诊断价值。结果97例老年膝关节OA患者中,早期组35例,非早期组62例,OA组患者膝关节5个软骨区域的T2值及nesfatin-1血清均高于对照组(P<0.05),早期组均低于非早期组(P<0.05);膝关节软骨区域T2值和血清nesfatin-1水平单独诊断早期OA的AUC在0.774~0.871范围,联合诊断的AUC为0.939。结论3.0 T磁共振T2 mapping序列联合血清nesfatin-1水平检测对老年膝关节早期OA具有较高的诊断价值。 展开更多
关键词 膝关节早期骨关节炎 老年 磁共振 T2 mapping序列 新饱食分子蛋白1
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Chinese Fuzzy Ontology Mapping Based on Support Vector Machine 被引量:2
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作者 Liu Jie Ma Yun +1 位作者 Tang Shiping Lu Peng 《China Communications》 SCIE CSCD 2012年第3期134-144,共11页
Taking into account that fuzzy ontology mapping has wide application and cannot be dealt with in many fields at present,a Chinese fuzzy ontology model and a method for Chinese fuzzy ontology mapping are proposed.The m... Taking into account that fuzzy ontology mapping has wide application and cannot be dealt with in many fields at present,a Chinese fuzzy ontology model and a method for Chinese fuzzy ontology mapping are proposed.The mapping discovery between two ontologies is achieved by computing the similarity between the concepts of two ontologies.Every concept consists of four features of concept name,property,instance and structure.First,the algorithms of calculating four individual similarities corresponding to the four features are given.Secondly,the similarity vectors consisting of four weighted individual similarities are built,and the weights are the linear function of harmony and reliability.The similarity vector is used to represent the similarity relation between two concepts which belong to different fuzzy ontolgoies.Lastly,Support Vector Machine(SVM) is used to get the mapping concept pairs by the similarity vectors.Experiment results are satisfactory. 展开更多
关键词 fuzzy ontology mapping similarity ag-gregation fuzzy knowledge representation SVM
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The Pointwise Characterizations of Fuzzy Mappings and Fuzzy Cardinal Numbers 被引量:2
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作者 张诚一 党平安 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第1期78-81, ,共4页
In this paper,the pointwise characterizations of fuzzy mappings are given. Based of this definition,we give a few of new properties of fuzzy cardinal numbers.
关键词 fuzzy mappings the cardinal numbers of fuzzy sets
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Landslides susceptibility mapping in Guizhou province based on fuzzy theory 被引量:8
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作者 WANG Wei-dong XIE Cui-ming DU Xiang-gang 《Mining Science and Technology》 EI CAS 2009年第3期399-404,共6页
The purpose of this study was to assess the susceptibility of landslides around the area of Guizhou province based on fuzzy theory.In first instance, slope, elevation, lithology, proximity to tectonic lines, proximity... The purpose of this study was to assess the susceptibility of landslides around the area of Guizhou province based on fuzzy theory.In first instance, slope, elevation, lithology, proximity to tectonic lines, proximity to drainage and annual precipitation were taken as independent, causal factors in this study.A landslide hazard evaluation factor system was established by classifying these factors into more subclasses according to some rules.Secondly, a trapezoidal fuzzy number weighting(TFNW) approach was used to assess the importance of six causal factors to landslides in an ArcGIS environment.Thirdly, a landslide susceptibility map was created based on a weighted linear combination model.According to this susceptibility map, the study area was classified into four categories of landslide susceptibility:low, moderate, high and very high.Finally, in order to verify the results obtained, the susceptibility map and the landslide inventory map were combined in the GIS.In addition, the weighting procedure showed that TFNW is an efficient method for weighting causal landslide factors. 展开更多
关键词 landslides susceptibility mapping fuzzy theory GIS weighted linear combination
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基于BAS—Smith—Fuzzy PID的物联网水肥控制系统研究 被引量:2
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作者 丁筱玲 王克林 +3 位作者 李军台 郭冰 李志勇 赵立新 《中国农机化学报》 北大核心 2025年第4期240-247,共8页
针对水肥控制难度大,传统灌溉施肥方法智能化程度较低的问题,设计一种基于BAS—Smith—Fuzzy PID的物联网水肥一体化控制系统。以控制混合肥液的EC(电导率)值为目标,在传统模糊PID控制算法的基础上引入BAS(天牛须搜索)算法和Smith预估... 针对水肥控制难度大,传统灌溉施肥方法智能化程度较低的问题,设计一种基于BAS—Smith—Fuzzy PID的物联网水肥一体化控制系统。以控制混合肥液的EC(电导率)值为目标,在传统模糊PID控制算法的基础上引入BAS(天牛须搜索)算法和Smith预估器。通过MATLAB/Simulink软件仿真,验证其寻优和优化能力,对比常规PID、BAS—PID模型,结果表明,BAS—Smith—Fuzzy PID控制器拥有优异控制性能。基于STM32主控平台搭建单通道混肥装置,配置MCGS触摸屏上位机并基于Android平台开发客户端进行人机交互,试验结果表明,BAS—Smith—Fuzzy PID的调节时间对比常规PID、BAS—PID缩短17.1%、63%、超调量降低82.1%、87.2%。 展开更多
关键词 水肥一体化 BAS算法 模糊PID控制 物联网 SIMULINK仿真
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基于AW-CPSO-Fuzzy-PID的茶鲜叶分级输送速度控制器研究 被引量:1
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作者 胡永光 靳筱天 +2 位作者 张志 鹿永宗 潘庆民 《农业机械学报》 北大核心 2025年第4期275-283,共9页
为解决基于机器视觉的茶鲜叶分级输送速度控制精度低的问题,本文设计一种引入自适应权重与Circle混沌映射的PSO优化模糊PID控制器(AW-CPSO-Fuzzy-PID),并开展基于改进模糊PID的茶鲜叶分级输送速度控制。在茶鲜叶输送传动系统作业过程中... 为解决基于机器视觉的茶鲜叶分级输送速度控制精度低的问题,本文设计一种引入自适应权重与Circle混沌映射的PSO优化模糊PID控制器(AW-CPSO-Fuzzy-PID),并开展基于改进模糊PID的茶鲜叶分级输送速度控制。在茶鲜叶输送传动系统作业过程中,当设定输送速度为78.5 mm/s时,每1 ms记录一次,输送速度波动可控制在0.7 mm/s内;改进模糊PID茶鲜叶输送传动系统响应时间比传统PID与模糊PID分别减少81.41%、61.74%;超调量分别降低81.24%、41.82%;采集目标图像平均峰值信噪比分别提高5.8、10.4 dB。结果表明,本文提出的方法具有更好的寻优性能和收敛速度。研究结果为基于机器视觉的茶鲜叶自动分级系统精确而稳定的控制奠定了理论基础,为解决由输送速度波动导致的图像模糊问题提供了技术方案。 展开更多
关键词 茶鲜叶分级 输送速度 模糊PID控制 粒子群算法
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An Equivalent Condition for (K) Integrability of Fuzzy-valued Mappings 被引量:1
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作者 李宝麟 张迪 《Northeastern Mathematical Journal》 CSCD 2007年第1期63-70,共8页
In this paper, we first discuss the relationship between the McShane integral and Pettis integral for vector-valued functions. Then by using the embedding theorems for the fuzzy number space E^1, we give a new equival... In this paper, we first discuss the relationship between the McShane integral and Pettis integral for vector-valued functions. Then by using the embedding theorems for the fuzzy number space E^1, we give a new equivalent condition for (K) integrabihty of a fuzzy set-valued mapping F : [a, b] → E^1. 展开更多
关键词 fuzzy number fuzzy set-valued mapping McShang integral Pettis integral (K) integral
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MR T_(1)-mapping结合动脉自旋标记技术在评估儿童慢性肾脏病肾纤维化和灌注中的应用 被引量:1
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作者 赵佳佳 胡俊 +2 位作者 尹传高 顾东浩 朱晓冬 《临床放射学杂志》 北大核心 2025年第3期513-517,共5页
目的初步研究MR纵向弛豫时间定量成像(T 1-mapping)和动脉自旋标记技术(ASL)在诊断儿童慢性肾脏病(CKD)中的应用价值。方法纳入CKD患儿32例(包括肾脏未萎缩19例,萎缩13例),同期招募健康志愿者30名作对照组,行T 1-mapping和ASL序列扫描,... 目的初步研究MR纵向弛豫时间定量成像(T 1-mapping)和动脉自旋标记技术(ASL)在诊断儿童慢性肾脏病(CKD)中的应用价值。方法纳入CKD患儿32例(包括肾脏未萎缩19例,萎缩13例),同期招募健康志愿者30名作对照组,行T 1-mapping和ASL序列扫描,分别获得肾皮质T 1值和肾皮质血流量(RBF)。比较对照组和CKD组患儿肾皮质T 1值和RBF值的差异,并分析CKD组肾皮质T 1值和RBF值与估算肾小球滤过率(eGFR)、血肌酐(Scr)、血胱抑素C(Cys-C)的相关性。结果CKD组较对照组肾皮质T 1值明显升高、RBF值明显减低(P<0.05);CKD组中,肾脏未萎缩患儿肾皮质T 1值与eGRF、Scr、Cys-C呈高、中度相关(r=-0.832、0.777、0.698,P<0.05),肾脏萎缩患儿肾皮质T 1值与eGRF、Scr呈高度相关(r=0.726、-0.743,P<0.05);CKD组肾皮质RBF与eGRF、Cys-C、Scr呈中度相关(r=0.699、-0.619、-0.554,P<0.05)。结论MR T_(1)-mapping和ASL定量反映肾脏微观病理变化及血流灌注情况,具有预测肾脏慢性病理损伤的潜在价值,有望在肾脏发生不可逆损伤前早期、无创地提供肾脏功能信息。 展开更多
关键词 慢性肾脏病 儿童 T_(1)-mapping 动脉自旋标记 磁共振功能成像
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Common Fixed Point Theorems for Weakly Compatible Mappings in Fuzzy Metric Spaces Using (JCLR) Property 被引量:1
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作者 Sunny Chauhan Wutiphol Sintunavarat Poom Kumam 《Applied Mathematics》 2012年第9期976-982,共7页
In this paper, we prove a common fixed point theorem for a pair of weakly compatible mappings in fuzzy metric space using the joint common limit in the range property of mappings called (JCLR) property. An example is ... In this paper, we prove a common fixed point theorem for a pair of weakly compatible mappings in fuzzy metric space using the joint common limit in the range property of mappings called (JCLR) property. An example is also furnished which demonstrates the validity of main result. We also extend our main result to two finite families of self mappings. Our results improve and generalize results of Cho et al. [Y. J. Cho, S. Sedghi and N. Shobe, “Generalized fixed point theorems for compatible mappings with some types in fuzzy metric spaces,” Chaos, Solitons & Fractals, Vol. 39, No. 5, 2009, pp. 2233-2244.] and several known results existing in the literature. 展开更多
关键词 fuzzy Metric Space WEAKLY Compatible mappingS (E.A) PROPERTY (CLR) PROPERTY (JCLR) PROPERTY
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基于Fuzzy DEMATEL-VIKOR模型的历史街区文化活力设计优化研究 被引量:1
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作者 万一凡 李宇轩 +2 位作者 粟丹倪 方兴 张镨方 《包装工程》 北大核心 2025年第20期279-295,共17页
目的在城市高质量发展背景下,系统分析历史街区文化活力的现状与不足,提出优化设计方法,以提升文化活力并彰显城市地域文化特色。方法通过对武汉市的实证研究,利用POI空间聚集度分析,选取文化活力较高的4个历史街区作为实地问卷调查对... 目的在城市高质量发展背景下,系统分析历史街区文化活力的现状与不足,提出优化设计方法,以提升文化活力并彰显城市地域文化特色。方法通过对武汉市的实证研究,利用POI空间聚集度分析,选取文化活力较高的4个历史街区作为实地问卷调查对象。通过分析历史文化展现、娱乐趣味性等10个影响因素,构建了设计方法。进一步运用Fuzzy DEMATEL-VIKOR组合模型处理用户调研数据中的不确定性与模糊性,并对影响因素进行重要性排序。结果指导完成历史街区文化活力活化的方案设计,最后通过用户评分验证设计方案。结论设计方案得到了用户的认可,达到了用户的期望。说明构建的Fuzzy DEMATEL-VIKOR模型能较好地实现用户需求的合理分析与转化,以及用户满意度意见的有效融合,提升了用户需求分析与转化过程的客观性和全面性,同时也为相关设计人员在进行用户需求分析时提供了一种新的设计思路。 展开更多
关键词 历史街区 文化活力 影响因素 fuzzy DEMATEL VIKOR
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Porphyry Copper Mineral Prospectivity Mapping Using Interval Valued Fuzzy Sets Topsis Method in Central Iran 被引量:2
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作者 Ali Reza Jafari Rad W. Busch 《Journal of Geographic Information System》 2011年第4期312-317,共6页
Geospatial Information System (GIS) provide tools to quantitatively analysis and combination of datasets from geological, geophysical, remote sensing and geochemical surveys for decision-making processes. Excellent co... Geospatial Information System (GIS) provide tools to quantitatively analysis and combination of datasets from geological, geophysical, remote sensing and geochemical surveys for decision-making processes. Excellent coverage of well-documented and good quality data enables testing of variable exploration modeling in an efficient way. The study area of this research is the most important part of Cu (Mo) porphyry—type mineralization belt in Iran. There are some well-known porphyry copper deposits in this region like Sarcheshmeh and Meiduk mines, but certainly there are same grounds to search for new porphyry deposits. The risks of developing mineral resources need to be known as accurately as possible, with regarding to all features those are effective in mineralization. These features can be recognized respect to Critical Genetic Factors (CGF’s) using Critical Recognition Criteria (CRC) for each type of mineralization. CGF’s can be employed for designing a Conceptual Genetic Model (CGM). Evidence maps create on the basis of CGM and then integrate together for production of Mineral Prospectivity Map (MPM). This map categorizes the areas based on their exploration importance. There are several techniques for creation of MPM. Interval Valued Fuzzy Sets (IVFSs) TOPSIS method was applied in this research. This method as a knowledge-driven method, allocate appropriate weights to layers on the basis of the effective membership, non membership, and non-certainty. The fundamental concept of TOPSIS is that the chosen alternatives should have the shortest distance from the positive ideal points (A*) and the farthest distance from negative ideal points (A-). 展开更多
关键词 MINERAL Prospectivity mapping PORPHYRY COPPER IVFSs TOPSIS Iran
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Regional Soil Mapping Using Multi-Grade Representative Sampling and a Fuzzy Membership-Based Mapping Approach 被引量:5
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作者 YANG Lin A-Xing ZHU +4 位作者 ZHAO Yuguo LI Decheng ZHANG Ganlin ZHANG Shujie Lawrence E. BAND 《Pedosphere》 SCIE CAS CSCD 2017年第2期344-357,共14页
High-resolution and detailed regional soil spatial distribution information is increasingly needed for ecological modeling and land resource management. For areas with no point data, regional soil mapping includes two... High-resolution and detailed regional soil spatial distribution information is increasingly needed for ecological modeling and land resource management. For areas with no point data, regional soil mapping includes two steps: soil sampling and soil mapping. Because sampling over a large area is costly, efficient sampling strategies are required. A multi-grade representative sampling strategy, which designs a small number of representative samples with different representative grades to depict soil spatial variations at different scales, could be a potentially efficient sampling strategy for regional soil mapping. Additionally, a suitable soil mapping approach is needed to map regional soil variations based on a small number of samples. In this study, the multi-grade representative sampling strategy was applied and a fuzzy membership-weighted soil mapping approach was developed to map soil sand percentage and soil organic carbon (SOC) at 0-20 and 20-40 cm depths in a study area of 5 900 km2 in Anhui Province of China. First, geographical sub-areas were delineated using a parent lithology data layer. Next, fuzzy c-means clustering was applied to two climate and four terrain variables in each stratum. The clustering results (environmental cluster chains) were used to locate representative samples. Evaluations based on an independent validation sample set showed that the addition of samples with lower representativeness generally led to a decrease of root mean square error (RMSE). The declining rates of RMSE with the addition of samples slowed down for 20-40 cm depth, but fluctuated for 0-20 cm depth. The predicted SOC maps based on the representative samples exhibited higher accuracy, especially for soil depth 20-40 cm, as compared to those based on legacy soil data. Multi-grade representative sampling could be an effective sampling strategy at a regional scale. This sampling strategy, combined with the fuzzy membership-based mapping approach, could be an optional effective framework for regional soil property mapping. A more detailed and accurate soft parent material map and the addition of environmental variables representing human activities would improve mapping accuracy. 展开更多
关键词 fuzzy clustering parent lithology representative grade samphng strategy soil spatial variations
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Mapping Soil Texture of a Plain Area Using Fuzzy-c-Means Clustering Method Based on Land Surface Diurnal Temperature Difference 被引量:7
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作者 WANG De-Cai ZHANG Gan-Lin +3 位作者 PAN Xian-Zhang ZHAO Yu-Guo ZHAO Ming-Song WANG Gai-Fen 《Pedosphere》 SCIE CAS CSCD 2012年第3期394-403,共10页
The use of landscape covariates to variability of soil properties in similar estimate soil properties is not suitable topographic and vegetation conditions. for the areas of low relief due to the high A new method wa... The use of landscape covariates to variability of soil properties in similar estimate soil properties is not suitable topographic and vegetation conditions. for the areas of low relief due to the high A new method was implemented to map regional soil texture (in terms of sand, silt and clay contents) by hypothesizing that the change in the land surface diurnal temperature difference (DTD) is related to soil texture in case of a relatively homogeneous rainfall input. To examine this hypothesis, the DTDs from moderate resolution imagine spectroradiometer (MODIS) during a selected time period, i.e., after a heavy rainfall between autumn harvest and autumn sowing, were classified using fuzzy-c-means (FCM) clustering. Six classes were generated, and for each class, the sand (〉 0.05 mm), silt (0.002-0.05 mm) and clay (〈 0.002 mm) contents at the location of maximum membership value were considered as the typical values of that class. A weighted average model was then used to digitally map soil texture. The results showed that the predicted map quite accurately reflected the regional soil variation. A validation dataset produced estimates of error for the predicted maps of sand, silt and clay contents at root mean of squared error values of 8.4%, 7.8% and 2.3%, respectively, which is satisfactory in a practical context. This study thus provided a methodology that can help improve the accuracy and efficiency of soil texture mapping in plain areas using easily available data sources. 展开更多
关键词 digital soil mapping land surface temperature low relief area MODIS remote sensing
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B-vex Fuzzy Mappings and Its Application to Fuzzy Optimization Problems
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作者 刘德峰 《Chinese Quarterly Journal of Mathematics》 CSCD 1996年第4期84-92, ,共9页
The concept of b-vex and logarithmic b-vex for fuzzy mappings are introduced by relaxing the definition of convexity of a fuzzy mapping. Most of the basic properties of b-vex fuzzy mapping are discussed and establish... The concept of b-vex and logarithmic b-vex for fuzzy mappings are introduced by relaxing the definition of convexity of a fuzzy mapping. Most of the basic properties of b-vex fuzzy mapping are discussed and established for the nondifferentiable case. Necessary and sufficient conditions for b-vex fuzzy mapping are presented. Sevaral important results are given for nonlinear fuzzy optimization problems assuming that the objective and constraint functions are b-vex fuzzy mappings. 展开更多
关键词 fuzzy set fuzzy numbers fuzzy distanced convex fuzzy sets b-vex fuzzy mapping logarithmic b-vex fuzzy mapping
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Feasibility of Simultaneous Application of Fuzzy Neural Network and TOPSIS Integrated Method in Potential Mapping of Lead and Zinc Mineralization in Isfahan-Khomein Metallogeny Zone 被引量:1
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作者 Bahareh Hedayat Mohammad Ehsan Ahmadi +2 位作者 Hamed Nazerian Aref Shirazi Adel Shirazy 《Open Journal of Geology》 2022年第3期215-233,共19页
Iran is located on a silver, lead, and zinc belt and according to the latest studies holds 11 million tons of lead, zinc, and silver stones which constitute 4 percent of global resources. Considering that mineral mate... Iran is located on a silver, lead, and zinc belt and according to the latest studies holds 11 million tons of lead, zinc, and silver stones which constitute 4 percent of global resources. Considering that mineral materials are explored in an uncertain space, exploration investment risk is an inseparable part of these activities. The important fact is to minimize the effect of this undesired factor in exploration. To achieve this, it is required that exploration activities and withdrawals are performed in a certain framework in which risk minimization is considered. Using mineral potential modelling for determining promising zones which should be taken into consideration in more detailed stages could make achieving the purpose possibly. This work is aimed at applying fuzzy neural network and TOPSIS methods simultaneously in order to explore zinc and lead resources. In this article, geological, telemetry, geophysics, and geochemistry data is integrated using fuzzy-neural network (neuro fuzzy) and using TOPSIS method rating for lead and zinc ore deposit potential mapping in Isfahan-Khomein strip which has been introduced as one of zinc and leads mineral scopes in Iran. This area which is composed of several zinc and lead ore deposits has been considered as the target area. Fuzzy integration results of zinc and lead mineralization witness layers confirm the relatively high potential of lead and zinc mineralization in this region having a northwest-southeast trend and involving more than 90 percent of the known indices and ore deposits of the region. In this research, it was shown that the results of TOPSIS-Neuro-Fuzzy integrated model (a combination of neural network and fuzzy logic) have increased the resolution of talented areas from the areas with no mineralization potential in comparison with the fuzzy method individually. 展开更多
关键词 Potential mapping TOPSIS NEURAL-fuzzy Zinc and Lead Isfahan-Khomein
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基于GOHBA-Fuzzy-PID算法的施肥控制系统优化研究
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作者 黄友锐 陆森 +1 位作者 韩涛 刘权增 《农业机械学报》 北大核心 2025年第11期320-328,共9页
为满足中草药种植对灌溉精准施肥控制的需求,解决传统PID控制存在的超调大、响应慢等问题,本文提出一种基于全局优化蜜獾算法(GOHBA)与模糊PID结合的优化控制策略。利用GOHBA调节模糊PID控制器关键增益参数,以提升系统响应速度与稳定性... 为满足中草药种植对灌溉精准施肥控制的需求,解决传统PID控制存在的超调大、响应慢等问题,本文提出一种基于全局优化蜜獾算法(GOHBA)与模糊PID结合的优化控制策略。利用GOHBA调节模糊PID控制器关键增益参数,以提升系统响应速度与稳定性。在流量0.5、1.0、1.5、2.0 L/min条件下开展仿真,比较GOHBA-Fuzzy-PID与标准PID、常规Fuzzy-PID及HBA-Fuzzy-PID的控制性能。结果表明:GOHBA-Fuzzy-PID在不同流量下均展现出较小的超调量(16.7%~26.3%)和更短或相当的稳态时间(92~97 s),优于其他控制器,特别当流量为2.0 L/min时,其超调量仅为18.2%,显著低于传统算法。结果表明本文算法在非线性、时变的水肥一体化系统中展现出良好鲁棒性与应用潜力。 展开更多
关键词 水肥一体化 GOHBA-fuzzy-PID算法 精准施肥
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Variational Inclusions for Fuzzy Mappings
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作者 Bai Chuanzhi (Department of Mathematics,Huaiyin Normal College,Jiangsu,223001) 《Chinese Quarterly Journal of Mathematics》 CSCD 1998年第3期23-28, ,共6页
In this paper,a perturbed iterative algorithm for finding approximate solutions of variational inclusions for fuzzy mapping,is presented and a convergence result which includes,as a special case,some known results in ... In this paper,a perturbed iterative algorithm for finding approximate solutions of variational inclusions for fuzzy mapping,is presented and a convergence result which includes,as a special case,some known results in this field,is given. 展开更多
关键词 variational inclusions fuzzy mappings iterative algorithm
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Algorithm of solutions for generalized nonlinear implicit quasivariational inclusions with fuzzy mappings
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作者 胡学刚 《Journal of Chongqing University》 CAS 2006年第1期36-41,共6页
A class of generalized implicit quasivariational inclusions with fuzzy mappings in Hilbert space is discussed in this paper which proves an existence theorem of the solutions and proposes a new iterative algorithm and... A class of generalized implicit quasivariational inclusions with fuzzy mappings in Hilbert space is discussed in this paper which proves an existence theorem of the solutions and proposes a new iterative algorithm and the convergence of the iterative sequence generated by the new algorithm. These results extend and improve some recent corresponding achievements. 展开更多
关键词 generalized nonlinear implicit quasivariational inclusion with fuzzy mappings existence theorem of solutions ITERATIVE
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