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Application of Project-based Learning Model Based on GBDT Model in Higher Vocational Civics Classes at the Time of Innovation 基于GBDT模式的项目式学习模式在高职思政课创新时期的应用
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01321
Guanglei Zhang
Abstract In this paper, the TR graph is constructed by combining the advantages of the tree diagram and Nightingale’s rose diagram, followed by the use of the LR+GBDT fusion model for predicting students’ performance. For the shortcomings of the K-prototypes algorithm in the application of educational data, an improved K-prototypes algorithm for student group division and feature labeling, and finally, user portrait as a pivot will be the fusion of the three to solve the problem of multi-chart linkage and the integration of charts constructed the student portrait, assisting teachers to make scientific decisions to develop personalized learning strategies. Through the integration of social resources and the curriculum content of the ideological and political discipline, a project-based learning model is established to realize the goal of cultivating students’ core qualities in the discipline of the ideological and political discipline. After the project-based learning mode, the difference between the pre-test and post-test scores of the experimental class’ ideological and political character was −6.83, p=0.000<0.001, the difference between the pre-test and post-test scores of cultural literacy was −7.12, p=0.000<0.001, and the difference between the pre-test and post-test scores of the value concept dimension was −3.54, p=0.027<0.05. There was a significant difference between the pre-test and post-test scores of the three dimensions, and there was a significant difference in the pre-test and post-test scores of all three dimensions. Scores between the pre-and post-tests were significantly different. Therefore, the application of project-based learning in the teaching of Civics and Political Science plays an important role in promoting.
摘要本文结合树形图和南丁格尔玫瑰图的优点,构建了TR图,并利用LR+GBDT融合模型对学生成绩进行预测。针对k -prototype算法在教育数据应用中的不足,改进k -prototype算法进行学生分组划分和特征标注,最后以用户画像为支点将三者融合,解决多图联动和图表整合问题,构建学生画像,协助教师做出科学决策,制定个性化学习策略。通过整合社会资源与思想政治学科课程内容,建立项目化学习模式,实现思想政治学科培养学生核心素质的目标。项目化学习模式后,实验班思想政治性格的前测与后测成绩差异为- 6.83,p=0.000<0.001;文化素养的前测与后测成绩差异为- 7.12,p=0.000<0.001;价值观念维度的前测与后测成绩差异为- 3.54,p=0.027<0.05。三个维度的前测和后测得分均存在显著差异,且三个维度的前测和后测得分均存在显著差异。测试前后得分差异有统计学意义。因此,项目式学习在公民与政治学教学中的应用具有重要的推动作用。
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引用次数: 0
Residual life prediction of bearings based on RBF approximation models 基于 RBF 近似模型的轴承残余寿命预测
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01329
Qiang Zhen, Ling Shen
Abstract Once the failure of rotating machinery occurs, it may cause the whole system to paralyze and cause great economic losses, or it may cause casualties. Therefore, the prediction of the remaining life of bearings is of great significance. The purpose of this paper is to analyze the approximate modeling technology and develop a framework for combined approximate modeling technology. A multi-strategy radial-based approximate model optimization model is proposed based on the limitations of radial-based approximate model technology. Utilizing the weight coefficient solving technique, the variable confidence RBF model, i.e., RBF-LSTM model, is established. Propose the remaining methods for life prediction using the bearing life prediction process. The RBF-LSTM combined approximation model is used to construct the evaluation index for rolling bearing remaining life prediction. Using the empirical analysis method, the optimization effects of different models and the accuracy of bearing remaining life prediction are analyzed, respectively. Experiments show that the data range of the RBF-LSTM combined approximation model is between [23,52], the overall fluctuation range of the data is not large, and the time taken is only 31 s. After 230 calculations, the model optimization effect is better. In the remaining life validation, the starting values of 132h and 148h are less different from real life, only 1.53h and 1.3h, respectively, and the model prediction accuracy is high.
摘要旋转机械一旦发生故障,可能造成整个系统瘫痪,造成巨大的经济损失,也可能造成人员伤亡。因此,轴承剩余寿命的预测具有重要意义。本文的目的是分析近似建模技术,并开发一种组合近似建模技术框架。针对基于径向近似模型技术的局限性,提出了一种基于径向近似模型的多策略优化模型。利用权系数求解技术,建立变置信度RBF模型,即RBF- lstm模型。提出使用轴承寿命预测过程进行寿命预测的剩余方法。采用RBF-LSTM组合逼近模型构建滚动轴承剩余寿命预测评价指标。采用实证分析方法,分别分析了不同模型的优化效果和轴承剩余寿命预测的精度。实验表明,RBF-LSTM组合近似模型的数据范围在[23,52]之间,数据的整体波动范围不大,所用时间仅为31 s。经过230次计算,模型优化效果较好。在剩余寿命验证中,132h和148h的起始值与实际寿命相差较小,分别只有1.53h和1.3h,模型预测精度较高。
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引用次数: 0
Optimization of Smart Campus Cybersecurity and Student Privacy Protection Paths Based on Markov Models 基于马尔可夫模型的智慧校园网络安全和学生隐私保护路径优化
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01336
Jianhua Du
Abstract This paper starts with the application of hyper-convergence technology, builds the framework of a university smart campus based on it, and gives the framework description of the smart campus. In order to analyze the network security for the smart campus, the Markov model is used as the basis combined with the reinforced Q learning algorithm for network node security detection, and a specific simulation analysis is given. The encryption performance and defense performance of the elliptic curve cryptosystem are analyzed through the elliptic curve cryptosystem to formulate the encryption scheme for students’ private data in the smart campus. The results indicate that the Markov model node detection combined with reinforcement Q-learning in this paper takes a maximum time of about 5.75s when the network node size reaches 150. When the number of nodes in the smart campus network is 30, under brute force attack, the whole network is captured only when the number of malicious nodes increases to more than 22, while under random attack, it takes as many as 30 malicious nodes to join before the network completely falls. This illustrates that the use of the Markov model can be realized to analyze the network security of the smart campus and that student privacy protection needs to further improve the awareness of student data privacy protection and develop the habit of assessing the privacy risk beforehand in their daily network behavior.
摘要:本文从超融合技术的应用入手,构建了基于超融合技术的高校智慧校园框架,并给出了智慧校园的框架描述。为了分析智慧校园的网络安全,以马尔可夫模型为基础,结合强化Q学习算法进行网络节点安全检测,并进行了具体的仿真分析。通过椭圆曲线密码系统分析椭圆曲线密码系统的加密性能和防御性能,制定智能校园中学生私有数据的加密方案。结果表明,本文结合强化q -学习的马尔可夫模型节点检测在网络节点规模达到150时,最大耗时约5.75s。当智能校园网的节点数为30时,在暴力攻击下,恶意节点数增加到22个以上时,整个网络才会被捕获,而在随机攻击下,多达30个恶意节点加入后,网络才会完全崩溃。这说明利用马尔可夫模型分析智慧校园网络安全是可以实现的,学生隐私保护需要进一步提高学生数据隐私保护意识,养成在日常网络行为中预先评估隐私风险的习惯。
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引用次数: 0
Machine learning-based design of a linear self-resistant attitude control system for UAV string level 基于机器学习的无人机串级线性自适应姿态控制系统设计
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01320
Yingnan Xiao
Abstract This paper mainly investigates the attitude control method of the quadrotor against unknown external interference and improves the control accuracy for the subsequent design of the control algorithm by establishing a more accurate mathematical model of the quadrotor. The extended Kalman filtering algorithm is used to obtain the real-time attitude state of the vehicle for attitude solving. The inertial guidance fusion uses the Kalman filter algorithm with delay correction to estimate the vehicle’s position and velocity information. Finally, the attitude control method of serial linear self-immunity control is proposed, which estimates and compensates for the external perturbation and internal uncertainty in real-time by linear expansion observer, while the position controller is designed by using PIV control. The simulation study analyzes that this paper’s method reduces the UAV attitude angle maximum error magnitude between about 1.04° and 4.07°compared with the traditional ADRC and serial PID. The maximum tracking error of pitch angle under white noise interference is only 0.37°using the control method of this paper, and the fluctuation amplitude is reduced by 0.81 on average, which shows a stronger anti-interference ability.
摘要本文主要研究四旋翼飞行器抗未知外部干扰的姿态控制方法,通过建立更精确的四旋翼飞行器数学模型,提高控制精度,为后续控制算法的设计提供依据。采用扩展卡尔曼滤波算法获取飞行器的实时姿态状态进行姿态求解。惯性制导融合采用带有延迟校正的卡尔曼滤波算法来估计飞行器的位置和速度信息。最后,提出了串行线性自免疫控制的姿态控制方法,利用线性膨胀观测器实时估计和补偿外部摄动和内部不确定性,同时利用PIV控制设计了位置控制器。仿真研究表明,与传统的自抗扰控制器和串行PID相比,本文方法使无人机姿态角最大误差幅度减小在1.04°~ 4.07°之间。采用本文控制方法,俯仰角在白噪声干扰下的最大跟踪误差仅为0.37°,波动幅度平均减小0.81,显示出较强的抗干扰能力。
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引用次数: 0
An Exploration of the Impact of Social Integration on the Re-employment Patterns of the Mobile Elderly Population in the Context of Informatization 信息化背景下社会融合对流动老年人口再就业模式的影响探析
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01331
Liping Xiang
Abstract Re-employment of the mobile elderly population is an important factor in promoting the development of social integration, and the study of the interaction between the two can further realize re-employment. This paper evaluates the level of social integration from four dimensions: economic integration, behavioral integration, cultural integration, and psychological integration, and explains different integration indicators. The indicator factors and their weights of the social integration measurement model were identified through the use of factor analysis and principal component analysis. At the same time, categorical variables were used to set up the re-employment mode of the migrant elderly population, which led to the formulation of three research hypotheses on the impact of social integration. In the description of the overall characteristics of the re-employment of the mobile elderly population, with the help of the multiple covariance test to confirm the accuracy of the estimation of the impact effect, binary logistic regression is used to verify the relationship between the impact of social integration on the re-employment of the mobile elderly population. The test results show that the minimum value of tolerance is 0.804, and the maximum value is 0.954. The maximum value of VIF is 1.199, and the minimum value is 1.009. Model 1 shows that social integration has a negative effect on re-employment of the mobile elderly population, and the value of EXP(B) is 0.541. This study verifies the relationship of the effect of social integration on re-employment and guides the re-employment of the mobile elderly population.
老年流动人口的再就业是促进社会融合发展的重要因素,研究两者之间的互动关系可以进一步实现再就业。本文从经济整合、行为整合、文化整合和心理整合四个维度评估了社会整合水平,并解释了不同的整合指标。通过因子分析和主成分分析,确定了社会整合测度模型的指标因子及其权重。同时,运用分类变量对老年流动人口的再就业模式进行了设置,从而形成了社会融合影响的三个研究假设。在对流动老年人口再就业总体特征的描述中,借助多元协方差检验来确认影响效应估计的准确性,采用二元逻辑回归来验证社会融合对流动老年人口再就业影响的关系。试验结果表明,公差最小值为0.804,最大值为0.954。VIF的最大值为1.199,最小值为1.009。模型1显示,社会融合对流动老年人口再就业有负向影响,EXP(B)值为0.541。本研究验证了社会融合对老年流动人口再就业的影响关系,为老年流动人口再就业提供指导。
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引用次数: 0
Reflections on and Exploration of Academic Early Warning Management and Support for Students in Colleges and Universities 高校学生学业预警管理与支持的思考与探索
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01327
Junli Feng, Xiaojie Lian
Abstract In this paper, the feature increment can be regarded as a learning mapping function, and a non-equilibrium incremental learning (WILS) method for the academic warning is proposed, and the academic warning model of the non-equilibrium incremental learning method is constructed. The learning factor is regulated by introducing the Focal loss function, and the learned knowledge is integrated into the Focal loss as the final loss function. Finally, the three-dimensional indicators of social characteristics, personal characteristics, and student behavior were used to explore the influencing factors of academic performance and academic support strategies were explored in this way. The results show that the average value of the accuracy of the academic early warning model is 0.857, and the F1-Measure is 0.891, which indicates that the model can reasonably and efficiently provide prior warning of students’ learning situations and behavioral performance. This paper proposes countermeasure suggestions for managing academic early warning and academic support work, which enhances the purpose of talent cultivation quality.
摘要本文将特征增量视为学习映射函数,提出了一种用于学术预警的非均衡增量学习(WILS)方法,构建了非均衡增量学习方法的学术预警模型。通过引入Focal loss函数来调节学习因子,将学习到的知识作为最终的loss函数整合到Focal loss中。最后,运用社会特征、个人特征、学生行为等三维指标探讨学业成绩的影响因素,并以此探讨学业支持策略。结果表明,学业预警模型的准确率均值为0.857,F1-Measure均值为0.891,表明该模型能够合理有效地对学生的学习状况和行为表现进行预警。本文提出了管理好学术预警和学术支持工作的对策建议,以提高人才培养质量。
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引用次数: 0
Research on the enhancement path of talent cultivation in the integration of dual-creation education and professional education for teacher training majors in colleges and universities based on multivariate statistical analysis 基于多元统计分析的高校师范专业双创教育与专业教育融合人才培养提升路径研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01315
Heyuan Ma, Xue Yang, Kaiyue Qi
Abstract In today’s society, under the demand for high-quality talents, the professionals cultivated in colleges and universities should not only master professional skills but also need to have the spirit of innovation and entrepreneurial ability in professional aspects. In this paper, firstly, the multivariate statistical analysis method is explained, and the basic principles of the factor analysis model, principal component analysis method and systematic clustering method are given to analyze the data in the following article. Secondly, starting from the necessity of the integration of bi-initiative education and professional education of teacher training majors in colleges and universities, we constructed the 4344 specialized and innovative integrated talent cultivation model of teacher training majors and constructed an evaluation system to evaluate the effectiveness. Finally, based on the evaluation system, the data analysis of the specialized and creative integrated talent cultivation model was carried out using factor analysis, principal component analysis and systematic clustering method. The results show that in the factor analysis, the highest loading value of the first principal factor is 0.917, the contribution rate of the first principal factor is 39.67%, and the loading value of the principal component factor reaches the highest value of 0.925. The clustering analysis is based on the results of the factor analysis, and the respondents are divided into 4 clusters. The number of people in the 2nd category is more than 30 people, which accounts for about 31.41% of the total number of people. The method of multivariate statistical analysis can be used to analyze the data effectively for the specialized and integrated personnel training mode of teacher training in colleges and universities and also gives the path of specialized and integrated personnel training for teacher training.
在当今社会对高素质人才的需求下,高校培养的专业人才不仅要掌握专业技能,更需要在专业方面具备创新精神和创业能力。本文首先对多元统计分析方法进行了说明,并给出了因子分析模型、主成分分析方法和系统聚类方法的基本原理,用于后续文章的数据分析。其次,从高校师训专业双能动性教育与专业教育相结合的必要性出发,构建了4344专业化创新的师训专业综合人才培养模式,并构建了评估效果的评价体系。最后,在评价体系的基础上,运用因子分析、主成分分析和系统聚类方法对专业化创新型综合人才培养模式进行数据分析。结果表明,在因子分析中,第一主因子的最高加载值为0.917,第一主因子的贡献率为39.67%,主成分因子的加载值最高达到0.925。聚类分析以因子分析结果为基础,将受访者分为4类。第二类人数在30人以上,约占总人数的31.41%。运用多元统计分析的方法,可以对高校教师培训的专业化、综合型人才培养模式进行有效的数据分析,也为教师培训提供了专业化、综合型人才培养的路径。
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引用次数: 0
Construction of college music information teaching mode under the background of Internet 互联网背景下高校音乐信息化教学模式的构建
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01330
Li Hai Yan
Abstract The traditional music teaching method in the informationization era has been difficult to adapt to the needs of modern teaching and must be reformed in the direction of informationization. In this paper, based on the closure, inflection point and outer enclosing box features of the stroke line element, the recognition of handwritten notes is carried out from the three categories of straight line segments, folded line segments and quadratic curves. Meanwhile, for the binarized music score image, the multi-directional LBP features for spectral line detection are improved, and the computation method of multi-scale spectral line detection LBP features is established. The Manhattan distance is used to evaluate and select the features, which are inputted into XGBoost for classification and recognition training based on the statistical distribution characteristics of the features. Note recognition and spectral line recognition are applied to college music teaching, and the effectiveness of teaching is explored. In the rhythm-recognition path, the recognition teaching based on multi-scale and multi-directional LBP features led to an increase in students’ mastery of the musical score by 2.8 and in the phrasing and segmentation path by 3.5. Informational teaching led to a deepening of students’ mastery of the notes and musical scores.
传统的音乐教学方法在信息化时代已经难以适应现代教学的需要,必须朝着信息化的方向进行改革。本文基于笔划线元的闭合性、拐点性和外围盒性特征,从直线线段、折叠线段和二次曲线三大类进行手写笔记的识别。同时,针对二值化后的乐谱图像,改进了用于谱线检测的多向LBP特征,建立了多尺度谱线检测LBP特征的计算方法。利用曼哈顿距离对特征进行评价和选择,根据特征的统计分布特征输入到XGBoost中进行分类和识别训练。将音符识别和谱线识别应用于高校音乐教学,并对教学效果进行了探讨。在节奏识别路径中,基于多尺度多方位LBP特征的识别教学使学生对乐谱的掌握提高了2.8分,在乐句和切分路径中提高了3.5分。信息化教学可以加深学生对音符和乐谱的掌握。
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引用次数: 0
Exploring Collaborative Parenting Strategies for Civics and Student Management in Colleges and Universities Using Multiple Data Chain Networks 利用多数据链网络探索高校思政与学生管理的协同育人策略
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01322
Zengqiang Kong, Lingling Chen, Qiaoran Jia
Abstract In this paper, the multivariate data chain network is used to obtain the lexical sequence of Civics and Political Education, which needs to be labeled considering the convenience of research and analysis. According to the C-RTT algorithm can reduce the number of synchronization time slots required for fine synchronization of Civic and Political Network Teaching, use the Transformer encoder to assign and define the model parameters, and then construct the automatic scoring model with the theme of Civic and Political Work and Student Management. Starting from the content of the research and evaluation of the Civics and Political Science Program, the research variables and measurements are determined, and the research on the evaluation of the Civics and Political Science Program in colleges and universities is designed. Initial data for research and analysis are obtained by distributing questionnaires, and simulation analysis and statistical analysis are used to empirically analyze the Civics education combined with a multivariate data chain network. The results show that on the model analysis, the P value of the model in this paper can be up to 80.6, the R value can be up to 85.7%, the F1 value can be up to 83.2%, and the accuracy rate can be up to 82.4%, and the automatic scoring model with the theme of Civic and Political Work and Student Management has achieved good results. On the analysis of the Civics course, the mean values of the seven topics of student management are in the range of 3.78-4.18, and the standard deviations are all greater than 0.84. This study skillfully applies the theory of Civics to student management and ultimately helps the students to establish the correct three views.
摘要本文采用多元数据链网络获取《公民与政治教育》的词汇序列,考虑到研究分析的便利性,需要对其进行标注。根据C-RTT算法可以减少公民政治网络教学精细同步所需的同步时点个数,利用Transformer编码器对模型参数进行分配和定义,构建以公民政治工作与学生管理为主题的自动评分模型。从公民与政治学专业研究与评价的内容出发,确定了研究变量和测量方法,设计了高校公民与政治学专业评价研究。通过发放问卷的方式获得研究分析的初始数据,并结合多元数据链网络,运用模拟分析和统计分析对公民教育进行实证分析。结果表明,在模型分析上,本文模型的P值可达80.6,R值可达85.7%,F1值可达83.2%,准确率可达82.4%,以公民与政治工作与学生管理为主题的自动评分模型取得了良好的效果。在公民学课程的分析中,学生管理的七个主题的平均值在3.78-4.18之间,标准差均大于0.84。本研究巧妙地将公民学理论运用到学生管理中,最终帮助学生树立正确的三观。
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引用次数: 0
An empirical study on the effect of academic engagement on academic achievement of engineering students in colleges and universities 关于学术参与对高校工科学生学业成绩影响的实证研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-02 DOI: 10.2478/amns.2023.2.01323
Xia Liu, Mingwei Liang
Abstract Based on the linear regression algorithm, this paper uses the basic linear regression algorithm and the kernel linear regression algorithm to construct the relationship model between academic input and academic achievement based on linear regression and to determine the independent variables, dependent variables and control variables in the model. The engineering students of East China Normal University are selected as the research object, the research instrument is determined, the research index is determined according to the survey, and the research hypothesis is proposed, and then the research and analysis design of the impact of academic input on academic achievement is completed. Using reliability and validity to test the validity of the questionnaire, the initial data of the study can be obtained by distributing the questionnaire, and correlation analysis and regression analysis are used to carry out an empirical study of academic input and academic achievement based on linear regression. The results show that the correlation coefficient between academic input and academic achievement of master’s degree students is R=0.892 and R2=0.792, indicating that the predictive variance of academic input on academic achievement is 89.2%. The effects of the dimensions under the academic input on the social adjustment dimension under the academic achievement were, in descending order, as follows: active cooperation > teacher-student interaction > educational enrichment > academic challenge > campus support. This study comprehensively analyzes the impact of academic engagement on academic achievement, and colleges and universities should change the test of students’ ability to memorize knowledge and skills to the test of students’ ability to analyze and solve problems by applying what they have learned.
摘要本文以线性回归算法为基础,利用基本线性回归算法和核线性回归算法,构建基于线性回归的学业投入与学业成绩的关系模型,确定模型中的自变量、因变量和控制变量。选取华东师范大学工科学生作为研究对象,根据调查确定研究工具,确定研究指标,提出研究假设,进而完成学术投入对学业成果影响的研究分析设计。采用信度和效度对问卷的效度进行检验,通过发放问卷获得本研究的初始数据,并采用相关分析和回归分析对基于线性回归的学术投入与学术成果进行实证研究。结果表明,硕士生学业投入与学业成绩的相关系数为R=0.892, R2=0.792,表明学业投入对学业成绩的预测方差为89.2%。学业投入下各维度对学业成就下社会适应维度的影响程度由大到小依次为:积极合作>师生互动>教育充实>学业挑战>校园支持。本研究全面分析了学业投入对学业成绩的影响,高校应将对学生记忆知识和技能能力的测试转变为对学生运用所学知识分析和解决问题能力的测试。
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引用次数: 0
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Applied Mathematics and Nonlinear Sciences
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