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SOME RESULTS ON GENERALIZED EQUILIBRIUM PROBLEMS INVOLVING STRICTLY PSEUDOCONTRACTIVE MAPPINGS 被引量:8
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作者 Jong Kyu Kim Sun Young Cho 《Acta Mathematica Scientia》 SCIE CSCD 2011年第5期2041-2057,共17页
In this paper,we consider an iterative sequence for generalized equilibrium problems and strictly pseudocontractive mappings.We show that the iterative sequence converges strongly to a common element of the solution s... In this paper,we consider an iterative sequence for generalized equilibrium problems and strictly pseudocontractive mappings.We show that the iterative sequence converges strongly to a common element of the solution set of generalized equilibrium problems and of the fixed point set of strictly pseudocontractive mappings. 展开更多
关键词 equilibrium problem nonexpansive mapping inverse-strongly monotone mapping strictly pseudocontractive mapping
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A NEW ITERATIVE METHOD FOR FINDING COMMON SOLUTIONS OF GENERALIZED EQUILIBRIUM PROBLEM,FIXED POINT PROBLEM OF INFINITE k-STRICT PSEUDO-CONTRACTIVE MAPPINGS,AND QUASI-VARIATIONAL INCLUSION PROBLEM 被引量:5
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作者 刘敏 张石生 《Acta Mathematica Scientia》 SCIE CSCD 2012年第2期499-519,共21页
In this article, we introduce a hybrid iterative scheme for finding a common element of the set of solutions for a generalized equilibrium problems, the set of common fixed point for a family of infinite k-strict pseu... In this article, we introduce a hybrid iterative scheme for finding a common element of the set of solutions for a generalized equilibrium problems, the set of common fixed point for a family of infinite k-strict pseudo-contractive mappings, and the set of solutions of the variational inclusion problem with multi-valued maximal monotone mappings and inverse-strongly monotone mappings in Hilbert space. Under suitable conditions, some strong convergence theorems are proved. Our results extends the recent results in G.L.Acedo and H.K.Xu [2], Zhang, Lee and Chan [8], Wakahashi and Toyoda [9], Takahashi and Takahashi [I0] and S. S. Chang, H. W. Joseph Lee and C. K. Chan [II], S.Takahashi and W.Takahashi [12]. Moreover, the method of proof adopted in this article is different from those of [4] and [12]. 展开更多
关键词 k-strict pseudo-contractive mappings generalized equilibrium problem vis-cosity approximation method variational inclusion problem multi-valuedmaximal monotone mappings s-inverse-strongly monotone mapping
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GENERAL SPLIT FEASIBILITY PROBLEMS FOR TWO FAMILIES OF NONEXPANSIVE MAPPINGS IN HILBERT SPACES 被引量:1
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作者 唐金芳 张石生 刘敏 《Acta Mathematica Scientia》 SCIE CSCD 2016年第2期602-613,共12页
The purpose of this article is to introduce a general split feasibility problems for two families of nonexpansive mappings in Hilbert spaces. We prove that the sequence generated by the proposed new algorithm converge... The purpose of this article is to introduce a general split feasibility problems for two families of nonexpansive mappings in Hilbert spaces. We prove that the sequence generated by the proposed new algorithm converges strongly to a solution of the general split feasibility problem. Our results extend and improve some recent known results. 展开更多
关键词 General split feasibility problems nonexpansive mappings Hilbert space strong convergence
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Algorithm for Solving Traveling Salesman Problem Based on Self-Organizing Mapping Network 被引量:1
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作者 朱江辉 叶航航 +1 位作者 姚莉秀 蔡云泽 《Journal of Shanghai Jiaotong university(Science)》 EI 2024年第3期463-470,共8页
Traveling salesman problem(TSP)is a classic non-deterministic polynomial-hard optimization prob-lem.Based on the characteristics of self-organizing mapping(SOM)network,this paper proposes an improved SOM network from ... Traveling salesman problem(TSP)is a classic non-deterministic polynomial-hard optimization prob-lem.Based on the characteristics of self-organizing mapping(SOM)network,this paper proposes an improved SOM network from the perspectives of network update strategy,initialization method,and parameter selection.This paper compares the performance of the proposed algorithms with the performance of existing SOM network algorithms on the TSP and compares them with several heuristic algorithms.Simulations show that compared with existing SOM networks,the improved SOM network proposed in this paper improves the convergence rate and algorithm accuracy.Compared with iterated local search and heuristic algorithms,the improved SOM net-work algorithms proposed in this paper have the advantage of fast calculation speed on medium-scale TSP. 展开更多
关键词 traveling salesman problem(TSP) self-organizing mapping(SOM) combinatorial optimization neu-ral network
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ALGORITHMS FOR A SYSTEM OF GENERALIZED MIXED EQUILIBRIUM PROBLEMS AND A COUNTABLE FAMILY OF SOME NONLINEAR MULTI-VALUED NONEXPANSIVE-TYPE MAPS
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作者 Ogonnaya Michael ROMANUS Ukamaka Victoria NNYABA Monday Ogudu NNAKWE 《Acta Mathematica Scientia》 SCIE CSCD 2018年第6期1805-1820,共16页
In this paper, relaxed iterative algorithms of Krasnoselskii-type and Halpern-type that approximate a solution of a system of a generalized mixed equilibrium problem anda common fixed point of a countable family of to... In this paper, relaxed iterative algorithms of Krasnoselskii-type and Halpern-type that approximate a solution of a system of a generalized mixed equilibrium problem anda common fixed point of a countable family of totally quasi-C-asymptotically nonexpansivemulti-valued maps are constructed. Strong convergence of the sequence generated by thesealgorithms is proved in uniformly smooth and strictly convex real Banach spaces with Kadec-Klee property. Furthermore, several applications of our theorems are also presented. Finally,our theorems are significant improvements on several important recent results for this classof nonlinear problems. 展开更多
关键词 Halpern-type algorithm Krasnoselskii-type algorithm system of generalizedmixed equilibrium problems totally quasi-C-asymptotically nonexpansive multi-valued maps equally continuous maps
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STRONG CONVERGENCE THEOREMS FOR EQUILIBRIUM PROBLEM AND BREGMAN TOTALLY QUASI-ASYMPTOTICALLY NONEXPANSIVE MAPPING IN BANACH SPACES
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作者 朱胜 黄建华 《Acta Mathematica Scientia》 SCIE CSCD 2016年第5期1433-1444,共12页
In this paper, we propose a new hybrid iterative scheme for finding a common solution of an equilibrium problem and fixed point of Bregman totally quasi-asymptotically nonexpansive mapping in reflexive Banach spaces. ... In this paper, we propose a new hybrid iterative scheme for finding a common solution of an equilibrium problem and fixed point of Bregman totally quasi-asymptotically nonexpansive mapping in reflexive Banach spaces. Moreover, we prove some strong convergence theorems under suitable control conditions. Finally, the application to zero point problem of maximal monotone operators is given by the result. 展开更多
关键词 equilibrium problem Bregman totally quasi-asymptotically nonexpansive mapping Bregman distance reflexive Banach space
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CONVERGENCE ANALYSIS FOR SYSTEM OF EQUILIBRIUM PROBLEMS AND LEFT BREGMAN STRONGLY RELATIVELY NONEXPANSIVE MAPPING
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作者 Yekini SHEHU 《Acta Mathematica Scientia》 SCIE CSCD 2014年第4期1081-1097,共17页
In this paper, we prove strong convergence theorems for approximation of a fixed point of a left Bregman strongly relatively nonexpansive mapping which is also a solution to a finite system of equilibrium problems in ... In this paper, we prove strong convergence theorems for approximation of a fixed point of a left Bregman strongly relatively nonexpansive mapping which is also a solution to a finite system of equilibrium problems in the framework of reflexive real Banach spaces. We also discuss the approximation of a common fixed point of a family of left Bregman strongly nonexpansive mappings which is also solution to a finite system of equilibrium problems in reflexive real Banach spaces. Our results complement many known recent results in the literature. 展开更多
关键词 left Bregman strongly relatively nonexpansive mapping left Bregman projection equilibrium problem Banach spaces
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Hybrid Extragradient-Type Methods for Finding a Common Solution of an Equilibrium Problem and a Family of Strict Pseudo-Contraction Mappings
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作者 Pham Ngoc Anh Tran Dinh Quoc Dang Xuan Son 《Applied Mathematics》 2012年第10期1357-1367,共11页
This paper proposes a new hybrid variant of extragradient methods for finding a common solution of an equilibrium problem and a family of strict pseudo-contraction mappings. We present an algorithmic scheme that combi... This paper proposes a new hybrid variant of extragradient methods for finding a common solution of an equilibrium problem and a family of strict pseudo-contraction mappings. We present an algorithmic scheme that combine the idea of an extragradient method and a successive iteration method as a hybrid variant. Then, this algorithm is modified by projecting on a suitable convex set to get a better convergence property. The convergence of two these algorithms are investigated under certain assumptions. 展开更多
关键词 EQUILIBRIUM problems Fixed Point Pseudo-Monotone Lipschitz-Type CONTINUITY Extragradient Method STRICT Pseudo-Contraction mapping
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Self-Adaptive Algorithms for the Split Common Fixed Point Problem of the Demimetric Mappings
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作者 Xinhong Chen Yanlai Song +1 位作者 Jianying He Liping Gong 《Journal of Applied Mathematics and Physics》 2019年第10期2187-2199,共13页
The split common fixed point problem is an inverse problem that consists in finding an element in a fixed point set such that its image under a bounded linear operator belongs to another fixed-point set. In this paper... The split common fixed point problem is an inverse problem that consists in finding an element in a fixed point set such that its image under a bounded linear operator belongs to another fixed-point set. In this paper, we present new iterative algorithms for solving the split common fixed point problem of demimetric mappings in Hilbert spaces. Moreover, our algorithm does not need any prior information of the operator norm. Weak and strong convergence theorems are given under some mild assumptions. The results in this paper are the extension and improvement of the recent results in the literature. 展开更多
关键词 HILBERT Space Demimetric mapping SPLIT Common Fixed Point problem SELF-ADAPTIVE Algorithm
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Solution of the Third Kind Boundary Value Problem of Laplace’s Equation Based on Conformal Mapping
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作者 Fuqian Wang 《Journal of Applied Mathematics and Physics》 2019年第3期536-546,共11页
In order to overcome the difficulty in solving the boundary value problem of electrostatic field with complex boundary and to give a new method for solving the third boundary value problem of Laplace’s equation, in t... In order to overcome the difficulty in solving the boundary value problem of electrostatic field with complex boundary and to give a new method for solving the third boundary value problem of Laplace’s equation, in this paper, the third boundary value problem of Laplace’s equation is studied by combining conformal mapping with theoretical analysis, the several analytical solutions of third boundary value problems of Laplace’s equation are gives, the correctness of its solution is verified through computer numerical simulation, and a new idea and method for solving the third boundary value problem of Laplace’s equation is obtained. In this paper, the boundary condition of the solving domain is changed by the appropriate conformal mapping, so that the boundary value problem on the transformed domain is easy to be solved or be known, and then the third kind boundary value of the Laplace’s equation can be solved easily;its electric potential distribution is known. Furthermore, the electric field line and equipotential line are plotted by using the MATLAB software. 展开更多
关键词 The THIRD KIND BOUNDARY Value problem Laplace’s EQUATION CONFORMAL mapping The Electric Potential Distribution
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An Iterative Method for Split Variational Inclusion Problem and Split Fixed Point Problem for Averaged Mappings
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作者 Kaiwen Wang Yali Zhao Ziru Zhao 《Journal of Applied Mathematics and Physics》 2023年第6期1541-1556,共16页
In this paper, we use resolvent operator technology to construct a viscosity approximate algorithm to approximate a common solution of split variational inclusion problem and split fixed point problem for an averaged ... In this paper, we use resolvent operator technology to construct a viscosity approximate algorithm to approximate a common solution of split variational inclusion problem and split fixed point problem for an averaged mapping in real Hilbert spaces. Further, we prove that the sequences generated by the proposed iterative method converge strongly to a common solution of split variational inclusion problem and split fixed point problem for averaged mappings which is also the unique solution of the variational inequality problem. The results presented here improve and extend the corresponding results in this area. 展开更多
关键词 Split Variational Inclusion problem Split Fixed Point problem Iterative Algorithm Averaged mapping CONVERGENCE
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APPLYING OONN TO SOLVE MAP-COLORING PROBLEM
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作者 余道衡 贾积有 《Journal of Electronics(China)》 1993年第1期9-14,共6页
For solving the map-coloring problems,this paper presents an energy function,amore effective dynamic equation and a more simple convergence condition.For the first time westudy the map-coloring problems in the way of ... For solving the map-coloring problems,this paper presents an energy function,amore effective dynamic equation and a more simple convergence condition.For the first time westudy the map-coloring problems in the way of connecting discrete Hopfield neural network withthe orthogonal optimization,and as a practical example,a color map of China is given. 展开更多
关键词 map-coloring problem HOPFIELD neural network ORTHOGONAL optimization
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Thoughts on the Technical Problems of Surveying and Mapping Engineering
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作者 CHANGXiangyu DONGYaping 《外文科技期刊数据库(文摘版)工程技术》 2022年第11期080-084,共5页
At present, Chinas economic strength and comprehensive national strength have been constantly improved, and various social infrastructures have been constructed and improved to a great extent, and the construction sca... At present, Chinas economic strength and comprehensive national strength have been constantly improved, and various social infrastructures have been constructed and improved to a great extent, and the construction scale of engineering projects has continued to expand. In this process, surveying and mapping engineering technology has played a very important role. However, there are still some problems and shortcomings in the actual use of surveying and mapping engineering technology. Surveying and mapping technicians should pay more attention to and understand the problems, so as to formulate scientific and effective solutions and further improve the reliability of surveying and mapping engineering technology. This paper mainly analyzes and studies the technical problems of surveying and mapping engineering and puts forward specific improvement measures, so as to provide useful reference and help for relevant personnel. 展开更多
关键词 surveying and mapping engineering technology problemS REFLECTION
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Continuous Selections and Fixed Points forφ-maps with Their Applications to Section Problems
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作者 PIAO YONG-JIE JIN HAI-LAN PIAO GUANG-RI 《Communications in Mathematical Research》 CSCD 2012年第3期225-234,共10页
The concept of finitely continuous topological space is introduced and the basic properties of the space are given. Several continuous selection theorems and fixed point theorems for Ф-maps are established, and as ap... The concept of finitely continuous topological space is introduced and the basic properties of the space are given. Several continuous selection theorems and fixed point theorems for Ф-maps are established, and as applications of the above fixed point theorems, some section problems are discussed. The results generalize and improve many corresponding conclusions. 展开更多
关键词 FC-SPACE FC-subset Ф-map continuous selection fixed point section problem
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Analysis on the Problems Existing in the Real Estate Surveying and Mapping Area and Quality Control
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作者 HU Shuquan 《外文科技期刊数据库(文摘版)工程技术》 2021年第9期499-502,共6页
Recently, the domestic real estate environment is good, the rapid development of China's real estate industry for real estate transactions, there is a positive direction, the sales increased year by year. Real est... Recently, the domestic real estate environment is good, the rapid development of China's real estate industry for real estate transactions, there is a positive direction, the sales increased year by year. Real estate sales price is in the housing area multiplied by the real estate unit sales price, so the accuracy of the real estate is directly related to the interests of property owners and developers, and in order to comprehensive management of housing area chart, the housing authority must use housing area chart to manage the property, and to help the owner to maintain its interests, and strictly control the housing area chart, in order to avoid interference, reduce errors. This paper mainly expounds the two meanings of the real estate surface, and analyzes the common problems in the mapping of the real estate surface, so that the peer in the mapping of the real estate surface reference. 展开更多
关键词 real estate analysis area mapping problem analysis quality control measures
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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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基于改进集的参数集优化问题Lipschitz连续性
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作者 孟旭东 郭林 张传美 《大连理工大学学报》 北大核心 2026年第2期209-215,共7页
在拓扑线性空间中研究一类改进集的参数集优化问题Lipschitz连续性.借助改进集的集上(下)序给出参数集优化问题解映射和最优值映射,在目标函数与约束函数具有Lipschitz连续性基本假设条件下,运用分析方法获得参数集优化问题解映射和最... 在拓扑线性空间中研究一类改进集的参数集优化问题Lipschitz连续性.借助改进集的集上(下)序给出参数集优化问题解映射和最优值映射,在目标函数与约束函数具有Lipschitz连续性基本假设条件下,运用分析方法获得参数集优化问题解映射和最优值映射的Lipschitz连续性定理,给出实例检验所得结果的有效性. 展开更多
关键词 集优化问题 LIPSCHITZ连续性 解映射 最优值映射 改进集
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多策略融合的改进塘鹅优化算法
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作者 赵煜恒 梁晓磊 +1 位作者 张东美 张煜 《计算机工程与设计》 北大核心 2026年第1期55-63,共9页
针对塘鹅优化算法参数繁多、局部寻优能力不足等问题,提出一种多策略融合的改进塘鹅优化算法。利用Tent混沌映射初始化种群,丰富种群多样性;引入Piecewise混沌映射平衡个体位置更新策略的选择,提升全局搜索能力和寻优效率;构建精英种群... 针对塘鹅优化算法参数繁多、局部寻优能力不足等问题,提出一种多策略融合的改进塘鹅优化算法。利用Tent混沌映射初始化种群,丰富种群多样性;引入Piecewise混沌映射平衡个体位置更新策略的选择,提升全局搜索能力和寻优效率;构建精英种群引导的个体位置更新策略,避免因个体学习源单一而导致的算法早熟;建立自适应机制平衡种群的探索与开发比例,并设计自适应莱维飞行步长因子帮助算法跳出局部最优。通过CEC2013测试集的28个基准函数和轮系设计问题实验,结果验证改进后的算法较对比的6种同类算法具有更好的寻优精度和收敛速度。 展开更多
关键词 塘鹅优化算法 混沌映射 精英种群引导 自适应 CEC2013 收敛曲线 轮系设计问题
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NONEMPTY INTERSECTION THEOREMS AND SYSTEM OF GENERALIZED VECTOR EQUILIBRIUM PROBLEMS IN PRODUCT G-CONVEX SPACES 被引量:3
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作者 丁协平 《应用数学和力学》 EI CSCD 北大核心 2004年第6期563-571,共9页
By using an existence theorems of maximal elements for a family of set-valued mappings in G-convex spaces due to the author, some new nonempty intersection theorems for a family of set-valued mappings were established... By using an existence theorems of maximal elements for a family of set-valued mappings in G-convex spaces due to the author, some new nonempty intersection theorems for a family of set-valued mappings were established in noncompact product G-convex spaces. As applications, some equilibrium existence theorems for a system of generalized vector equilibrium problems were proved in noncompact product G-convex spaces. These theorems unify, improve and generalize some important known results in literature. 展开更多
关键词 集值映象组 非空交定理 广义矢量平衡问题组 乘积G凸空间
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思维导图联合PBL教学模式在妇产超声教学中的应用效果
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作者 蒋瑶瑶 黄娟娟 +1 位作者 韩涵 单思维 《临床医学研究与实践》 2026年第2期166-169,共4页
目的探讨思维导图联合以问题为基础学习(PBL)教学模式在妇产超声教学中的应用效果。方法选取2024年8月至2025年8月南京鼓楼医院集团宿迁医院的40名超声科实习生,将其随机分为对照组(n=20)和研究组(n=20)。对照组采用传统教学方法,研究... 目的探讨思维导图联合以问题为基础学习(PBL)教学模式在妇产超声教学中的应用效果。方法选取2024年8月至2025年8月南京鼓楼医院集团宿迁医院的40名超声科实习生,将其随机分为对照组(n=20)和研究组(n=20)。对照组采用传统教学方法,研究组采用思维导图联合PBL教学模式。比较两组的理论成绩、超声操作技能成绩、临床思维评分及满意度。结果研究组的理论成绩及超声操作技能成绩高于对照组(P<0.05)。研究组的问题识别能力、信息整合能力、逻辑推理能力、方案制定合理性评分及总分高于对照组(P<0.05)。研究组的教学内容、教学形式、课堂互动性、自主学习能力提升评分及总分高于对照组(P<0.05)。结论思维导图联合PBL教学模式能够提高妇产超声实习生的理论成绩及超声操作技能成绩,提升临床思维能力,学生满意度较高。 展开更多
关键词 思维导图 以问题为基础学习 妇产超声
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