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Financial Risk Prediction Model in the Context of Big Data - Corporate Financial Risk Control Based on LSTM Deep Neural Networks 大数据背景下的金融风险预测模型--基于 LSTM 深度神经网络的企业金融风险控制
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01422
Qiang Du
Abstract This paper is based on the use of recurrent neural networks and LSTM deep neural networks to obtain the financial risk prediction feature sequence in the context of big data. The financial risk prediction feature sequence is used as the input value of the input gate of the LSTM deep neural network model after data filtering, normalization and loss function optimization, and then the financial risk prediction for the output gate of the LSTM deep neural network model. Considering the availability of data, small and medium-sized enterprises listed in A-share companies in the Wind database are selected as sample enterprises, and evaluation indexes are constructed and detected at the same time so as to complete the experimental design of enterprise financial risk prediction in the context of big data. The prediction of enterprise financial risk is empirically analyzed using simulation analysis and statistical analysis. The results show that in the model performance analysis, the average value of ten years of data, the highest value is still the result obtained by LSTM training, 0.761, compared with other models of LSTM deep neural network in static financial risk prediction in the overall best performance. In the case study of Yibai Pharmaceutical, the minimum value of the rate of return, return on total assets, and return on assets were -10.02%, 2.56%, -20.72%, which reflects the fact that the private enterprises still have large profitability space to be mined. This study helps investors or financial institutions such as funds to find out the possible financial risk crisis of listed companies as early as possible to avoid the parties from incurring large financial losses.
摘要本文基于循环神经网络和LSTM深度神经网络,获得大数据背景下的金融风险预测特征序列。将金融风险预测特征序列作为LSTM深度神经网络模型经过数据滤波、归一化和损失函数优化后的输入门的输入值,然后对LSTM深度神经网络模型的输出门进行金融风险预测。考虑到数据的可得性,选取Wind数据库中a股上市中小企业作为样本企业,同时构建和检测评价指标,完成大数据背景下企业财务风险预测的实验设计。运用模拟分析和统计分析对企业财务风险的预测进行了实证分析。结果表明,在模型性能分析中,十年数据的平均值中,最高的值仍然是LSTM训练得到的结果,为0.761,与其他模型相比,LSTM深度神经网络在静态金融风险预测中整体表现最好。在益百药业的案例研究中,收益率、总资产收益率、资产收益率的最小值分别为-10.02%、2.56%、-20.72%,反映出民营企业仍有较大的盈利空间有待挖掘。本研究有助于投资者或基金等金融机构尽早发现上市公司可能出现的财务风险危机,避免各方遭受较大的财务损失。
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引用次数: 0
Economic Policy Uncertainty, Accounting Robustness and Commercial Credit Supply - A Big Data Analysis Based on Accounts Receivable 经济政策不确定性、会计稳健性与商业信贷供应--基于应收账款的大数据分析
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01421
Lei Guo, Xujie Guo
Abstract In this paper, a two-dimensional panel data model of economic policy uncertainty is investigated based on the individual fixed effects of panel quantile regression, and a nonparametric panel model with individual fixed effects is established. The unfolding of nonparametric penalized spline and the introduction of Bayesian in stratified quantile are utilized to construct regression models applicable to accounting robustness, respectively. In the empirical study, the economic policy uncertainty index, accounting robustness and commercial credit supply are measured respectively. The annual data of China’s Shenzhen and Shanghai A-share listed companies during the period from 2012 to 2021 were selected as the research basis, and Bayesian quantile regression was made on the basis of correlation analysis. The coefficient of commercial credit supply is found to be -0.0821, and the variable RD1 is negatively correlated with economic policy uncertainty. This regression result confirms hypothesis H1 of this paper, suggesting that private firms invest less in innovation when economic policy uncertainty is higher. In the test of economic policy uncertainty by type, the regression coefficients of RD2, EPU, and SIZE are negative, respectively -0.0368, −0.2124, and -0.1458, which indicates that fiscal policy, monetary policy, and exchange rate and capital account policy uncertainty are negatively correlated with the supply of business credit to enterprises. Based on this correlation, this study provides guidance for the development of business credit for enterprises.
摘要基于面板分位数回归的个体固定效应,研究了经济政策不确定性的二维面板数据模型,建立了具有个体固定效应的非参数面板模型。利用非参数惩罚样条的展开和贝叶斯在分层分位数中的引入分别构建了适用于会计稳健性的回归模型。在实证研究中,分别测量了经济政策不确定性指标、会计稳健性指标和商业信贷供给指标。选取2012 - 2021年中国深圳和上海a股上市公司年度数据作为研究基础,在相关分析的基础上进行贝叶斯分位数回归。商业信贷供给系数为-0.0821,变量RD1与经济政策不确定性呈负相关。该回归结果证实了本文的假设H1,即经济政策不确定性越高,民营企业的创新投入越少。在经济政策不确定性的类型检验中,RD2、EPU和SIZE的回归系数分别为负,分别为-0.0368、- 0.2124和-0.1458,表明财政政策、货币政策、汇率和资本项目政策的不确定性与企业信贷供给呈负相关。基于这种相关性,本研究为企业商业信用的发展提供了指导。
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引用次数: 0
Research on the construction of a visualization platform for customer demand analysis based on big data technology 基于大数据技术的客户需求分析可视化平台构建研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01414
Shengping Yan, Hongbang Su, Guisheng Ma, Xiaoxuan Qi, Yuling Li, Liang Cheng
Abstract In this paper, from the MC optimization oriented to customer demand, we use big data technology to optimize the model, and with the help of the fuzzy cluster analysis method, we convert the variable types of customer demand indexes into different clustering effects. Fuzzy cluster analysis is used to establish the mapping relationship between customer demand, functional requirements of the product, and design parameters. Use the idea of customer demand analysis and transformation and the module division method to build the framework system of product configuration design and complete the construction of a customer demand-oriented product configuration visualization platform. By dividing different customer requirements, the best classification of customer requirements is obtained, and the technical optimization design of washing machine products is taken as an example to analyze the practicability of the platform constructed in this paper. Among the 12 technical characteristics of the washing machine, the importance of EG11 is 0.1395, the importance of EG1 is 0.1116, and the importance of EG5 is 0.1017, which indicates that customers are most concerned about the energy-saving function of the product, and thus the enterprise should design the product based on the customer needs to satisfy the customer’s demands.
摘要本文从面向客户需求的MC优化出发,利用大数据技术对模型进行优化,并借助模糊聚类分析方法,将不同类型的客户需求指标转化为不同的聚类效果。采用模糊聚类分析法建立客户需求、产品功能需求与设计参数之间的映射关系。运用客户需求分析与转化的思想和模块划分的方法,构建了产品配置设计的框架体系,完成了面向客户需求的产品配置可视化平台的构建。通过对不同的客户需求进行划分,得到客户需求的最佳分类,并以洗衣机产品的技术优化设计为例,分析本文构建的平台的实用性。在洗衣机的12个技术特性中,EG11的重要性为0.1395,EG1的重要性为0.1116,EG5的重要性为0.1017,这表明客户最关心的是产品的节能功能,因此企业应该根据客户的需求来设计产品,以满足客户的需求。
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引用次数: 0
Research based on the use of digital media art in garden landscape design 基于数字媒体艺术在园林景观设计中的应用的研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01419
Huazhong Hu
Abstract This paper takes garden landscape as the research object, discusses the application of digital media art in assisting garden landscape design, and obtains the optimization probability of various types of garden landscape types in landscape spatial layout through patch generation using the change simulation (PLUS) model. And after using the multi-scale Retinex algorithm to make image enhancement, a fusion of single-scale enhancement results in achieving the initial optimization of the image, after a dynamic interception and stretching operation to restore the enhancement effect to achieve the optimization of the landscape image. Finally, a group of landscape design images are selected as experimental objects to test the effectiveness of digital media art-assisted landscape design. The results show that with the assistance of digital media art, the modulus of the change distance of neighboring units is between 2.21 and 10.89, and the relative change rate takes the value between 0.45 and 5.21. The method is capable of balancing the ups and downs and repetitive rhythms in the design, ensuring that the landscape has good brightness and visual effects.
摘要:本文以园林景观为研究对象,探讨数字媒体艺术在辅助园林景观设计中的应用,利用变化模拟(PLUS)模型,通过斑块生成,得到园林景观类型在景观空间布局中的优化概率。并且在使用多尺度Retinex算法进行图像增强后,融合单尺度增强结果实现图像的初始优化,经过动态截取和拉伸操作恢复增强效果,实现景观图像的优化。最后,选取一组景观设计图像作为实验对象,检验数字媒体艺术辅助景观设计的有效性。结果表明,在数字媒体艺术的辅助下,相邻单元的变化距离的模量在2.21 ~ 10.89之间,相对变化率在0.45 ~ 5.21之间。该方法能够平衡设计中的起伏和重复节奏,确保景观具有良好的亮度和视觉效果。
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引用次数: 0
Exploration of Digital Communication Mechanism of Film and Television Media Industry in the Background of Artificial Intelligence 人工智能背景下影视传媒业数字传播机制探索
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01426
Pan Jun
Abstract This paper analyzes the fission information dissemination mode from the digital information media mode of the film and television media industry. Using the correlation algorithm to analyze the influence of TV drama ratings and broadcasting accounted for and selecting cluster analysis to explore the relationship between TV drama broadcasting and TV type and rating. Take the ratings as the dependent variable, set the independent variables, establish the multivariate statistical model, and use SPSS software to calculate factor analysis of TV drama ratings. By combining user opinions, optimize the heterogeneous graph neural network film and television communication model based on attribute information. Test the MAE value and effect of the propagation algorithm proposed in this paper using the real Movies Lens dataset. When N=5, the recall, precision and F1 of this paper’s algorithm are 0.295, 0.751, and 0.425, respectively. The difference of the three metrics with the resource diffusion algorithm based on the three-step graph is 0.25, 0.634, and 0.36. When N=50, the difference of the three metrics between this paper’s algorithm and the social diffusion algorithm based on labels is 0.197, 0.071, and 0.101.
摘要:本文从影视传媒业的数字信息媒体模式出发,分析了裂变式信息传播模式。利用相关算法分析电视剧收视率与播出占比的影响,并选择聚类分析探讨电视剧播出与电视类型、收视率的关系。以收视率为因变量,设置自变量,建立多元统计模型,利用SPSS软件对电视剧收视率进行因子分析计算。通过结合用户意见,优化基于属性信息的异构图神经网络影视传播模型。使用真实的Movies Lens数据集测试本文提出的传播算法的MAE值和效果。当N=5时,本文算法的召回率为0.295,精度为0.751,F1为0.425。这三个指标与基于三步图的资源扩散算法的差值分别为0.25、0.634和0.36。当N=50时,本文算法的三个指标与基于标签的社会扩散算法的差值分别为0.197、0.071和0.101。
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引用次数: 0
Research on online monitoring and anti-dance technology of transmission line dance based on wide-area information transmission 基于广域信息传输的输电线路舞动在线监测与防舞动技术研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01423
Shuhuai An, Zhen Wei, Lei Tang, Yijia Li
Abstract This paper diagnoses the transmission line dancing situation based on the wide-area traveling wave information transmission and dancing mechanism. The characteristics of the wide-area initial traveling wave propagation are analyzed, and the traveling wave information of transmission line dancing is analyzed using wavelet transform. Measure the voltage traveling wave energy distribution for online monitoring and diagnosis of transmission lines. To study the dancing amplitude of transmission lines, a finite element analysis model is created. The detuned pendulum anti-dancing device is designed, the detuned pendulum dynamics equation is constructed, and the critical wind speed leading to transmission line dancing is investigated by the theoretical equation method and the stability theory method. Through the empirical analysis method, the transmission line dance monitoring and the anti-dance effect are analyzed. The experiments show that when the transmission line dances at a slower speed, the online monitoring method based on wide-area information monitors the motion of the target spacer bar between two neighboring frames between [1,3], and the processing speed is 138.2 frames per second faster than the other techniques, which is successful in tracking the dancing target of the transmission line. In the anti-dance test, before the anti-dancer was added, the transmission line amplitude reached 12,12m/s from the beginning at a wind speed of 18m/s and 14m/s to provoke dance. After the installation of the anti-dancer, the amplitude is maintained between [0,1] in most cases, and the anti-dancer has a good anti-dance effect.
摘要基于广域行波信息传输和跳波机理,对传输线跳波情况进行了诊断。分析了广域初始行波传播特性,利用小波变换对传输线跳频行波信息进行了分析。测量电压行波能量分布,实现输电线路的在线监测与诊断。为了研究输电线路的跳幅,建立了有限元分析模型。设计了失谐摆防跳装置,建立了失谐摆动力学方程,采用理论方程法和稳定性理论方法研究了导致传输线跳的临界风速。通过实证分析方法,对输电线路跳舞监测和防跳舞效果进行了分析。实验表明,当传输线以较慢的速度跳舞时,基于广域信息的在线监测方法监测目标间隔条在[1,3]之间相邻两帧之间的运动,处理速度比其他技术快138.2帧/秒,成功地跟踪了传输线的跳舞目标。在抗舞蹈测试中,在加入抗舞蹈者之前,在风速为18m/s和14m/s时,传输线振幅从一开始就达到12,12m/s,以引发舞蹈。反舞器安装后,大多数情况下振幅保持在[0,1]之间,反舞器具有良好的反舞效果。
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引用次数: 0
Characterization of Immediate Pressing Tactics in Soccer in the Age of Artificial Intelligence 人工智能时代足球即时压迫战术的特征描述
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01415
Yun Liu
Abstract This paper focuses on the use of feature extraction techniques as well as parameter estimation to analyze the immediate pressing tactics in soccer games. The motion target detection method is used to capture the movements of the soccer player. By setting the rotation angle of the point cloud, the soccer movement action is represented in the form of a coordinate system. By combining the inter-frame difference method and setting the motion image threshold, the motion target can be obtained. Utilize Hu moments to extract the features of soccer motion. Combine the center of mass and velocity of soccer motion to reduce the error rate of motion feature extraction. Pairwise quaternions are utilized to represent soccer motion parameters to improve motion estimation. The results show that the soccer team has the greatest success rate of practicing immediate pressing tactics in 3s-4s, and the success rate of applying immediate pressing tactics after 4s is significantly lower. Team C has the highest success rate of huddling with defensive immediate pressing tactics, which reaches 56.1%. The success rate of huddling is closest to that of team A and team B, which are 43.54% and 43.97%, respectively.
摘要本文主要研究了利用特征提取技术和参数估计技术对足球比赛中的紧逼战术进行分析。运动目标检测方法用于捕捉足球运动员的运动。通过设置点云的旋转角度,将足球运动动作以坐标系的形式表示出来。结合帧间差分法,设置运动图像阈值,得到运动目标。利用胡矩提取足球运动特征。将足球运动的质心和速度相结合,降低了运动特征提取的错误率。利用对偶四元数来表示足球运动参数,以提高运动估计。结果表明:足球队在第3 -4秒实施即时逼抢战术的成功率最高,第4秒后实施即时逼抢战术的成功率明显较低。C队的防守紧逼战术的挤防成功率最高,达到56.1%。抱团成功率最接近A组和B组,分别为43.54%和43.97%。
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引用次数: 0
Research on the Application of KNN Algorithm Incorporating Gaussian Functions in Precision Marketing Classification of E-commerce Platforms 融入高斯函数的 KNN 算法在电子商务平台精准营销分类中的应用研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01418
Guorui Wang
Abstract The technology can fully explore the user’s consumption behavior habits and help the e-commerce platform formulate more precise marketing strategies in a targeted manner. This paper firstly analyzes the optimization of marketing strategy based on the 3R marketing theory, gives the design process of the precise marketing strategy of an e-commerce platform, and analyzes the personalized service based on consumer classification. Secondly, for the shortcomings of the KNN algorithm in the process of accurate classification, the Gaussian function is introduced to weight the optimization of the algorithm, which further realizes the construction of the G-KNN algorithm. Finally, the testing and application analysis of the algorithm model was carried out using the actual user consumption data of the e-commerce platform. The results show that the classification accuracy of the G-KNN algorithm has been maintained at about 95% when the K value exceeds 800, and the F1 composite value of this paper’s algorithm fluctuates around 56% when the K value exceeds 1000. On the e-commerce platform, except for the electrical appliances category classification test, the fit and accuracy of other categories basically match. Using the KNN algorithm incorporating the Gaussian function can effectively realize the accurate classification of user characteristics on the e-commerce platform and provide data support for the e-commerce platform to formulate accurate marketing strategies based on consumer preferences.
该技术可以充分挖掘用户的消费行为习惯,帮助电商平台有针对性地制定更精准的营销策略。本文首先分析了基于3R营销理论的营销策略优化,给出了电子商务平台精准营销策略的设计过程,并对基于消费者分类的个性化服务进行了分析。其次,针对KNN算法在精确分类过程中存在的不足,引入高斯函数对算法的优化进行加权,进一步实现了G-KNN算法的构建。最后,利用电子商务平台的实际用户消费数据,对算法模型进行了测试和应用分析。结果表明,当K值超过800时,G-KNN算法的分类准确率一直保持在95%左右,当K值超过1000时,本文算法的F1复合值在56%左右波动。在电商平台上,除电器品类分类测试外,其他品类的契合度和准确率基本匹配。利用结合高斯函数的KNN算法,可以有效地实现对电商平台用户特征的准确分类,为电商平台根据消费者偏好制定精准的营销策略提供数据支持。
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引用次数: 0
The Embodiment and Innovation of Digital Twin Platform in Modern Interior Environment Design 数字孪生平台在现代室内环境设计中的体现与创新
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01420
Xiaoyao Chen, Jizhou Li
Abstract In this paper, the digital twin platform for the indoor environment is constructed by combining digital twin technology and modern indoor environment elements to innovate the modern indoor environment design method. The digital twin platform is designed for modern indoor environments in two aspects: data acquisition and 3D model visualization for indoor environments. The indoor environment data are collected, cleaned and quasi-exchanged using sensors, the collected multi-source heterogeneous data of the indoor environment are fused by the time alignment method, and the 3D model of the indoor environment is driven by the design of the 3D model’s operations of translation, rotation and scaling. On this basis, the performance of the indoor environment digital twin platform is analyzed, and the data acquisition method and driving effects of the 3D model are explored. The results show that the data transmission measurement delay is within 20ms, the display delay is within 70ms, the transmission frames per second are basically stabilized at about 200FPS, 100FPS, 60FPS, the accuracy reaches 0.9 in the case of multiple data acquisition, and the fusion speed is about 3.4m/s, and the success rate of the driving operation of the overall three-dimensional model of the indoor environment is all greater than 0.96.
本文将数字孪生技术与现代室内环境要素相结合,构建室内环境数字孪生平台,创新现代室内环境设计方法。数字孪生平台是针对现代室内环境设计的,主要从室内环境的数据采集和三维模型可视化两个方面进行设计。利用传感器对室内环境数据进行采集、清洗和准交换,采用时间对齐方法对采集到的室内环境多源异构数据进行融合,通过设计室内环境三维模型的平移、旋转和缩放操作驱动室内环境三维模型。在此基础上,分析了室内环境数字孪生平台的性能,探讨了三维模型的数据采集方法和驱动效果。结果表明,数据传输测量延迟在20ms以内,显示延迟在70ms以内,传输帧数每秒基本稳定在200FPS、100FPS、60FPS左右,在多次数据采集的情况下精度达到0.9,融合速度约3.4m/s,室内环境整体三维模型的驱动运行成功率均大于0.96。
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引用次数: 0
Research on transmission line dance monitoring and early warning system by fusing multi inertial sensors 融合多惯性传感器的输电线路舞动监测与预警系统研究
IF 3.1 Q1 Mathematics Pub Date : 2023-12-09 DOI: 10.2478/amns.2023.2.01425
Shuhuai An, Zhen Wei, Lei Tang, Jie Ren
Abstract This paper first analyzes the mechanism of transmission line dancing and constructs the mathematical model of transmission line dancing and the parameters of transmission line dancing. Then, a transmission line dancing monitoring and warning system is designed by integrating multiple inertial sensors, and the tower monitoring main splitter and wireless inertial monitoring and warning unit are designed, respectively. Then, the transmission line dancing trajectory was denoised using the wavelet threshold method, and the two-way inequality was determined by the attitude decomposition algorithm so as to design the transmission line dancing trajectory parameter identification algorithm. Finally, the designed system is tested experimentally, and the monitoring performance of the dance monitoring trajectory system is analyzed using collected data. The results show that the angular error of the sensor’s pitch and roll attitudes is within 0.5°, the angular error of the heading angle is within 1°, and the acceleration of the smoothed signal is in the range of -0.2/g~0.2/g. The relative error of amplitude recognition is up to 2.6 cm, and the frequency recognition basically agrees with the actual movement frequency, which is 0.21 Hz, and the error of the recognized frequency is within 0.03 Hz. Hz.
摘要本文首先分析了传输线跳的机理,建立了传输线跳的数学模型和传输线跳的参数。然后,设计了集成多个惯性传感器的传输线跳线监测预警系统,分别设计了塔架监测主分配器和无线惯性监测预警单元。然后,利用小波阈值法对传输线跳轨进行降噪,利用姿态分解算法确定双向不等式,设计传输线跳轨参数识别算法。最后,对所设计的系统进行了实验测试,并利用采集到的数据分析了舞蹈监测轨迹系统的监测性能。结果表明,传感器俯仰姿态和侧滚姿态的角误差在0.5°以内,航向角的角误差在1°以内,平滑信号的加速度在-0.2/g~0.2/g范围内。幅值识别的相对误差可达2.6 cm,频率识别与实际运动频率基本吻合,为0.21 Hz,识别频率误差在0.03 Hz以内。赫兹。
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引用次数: 0
期刊
Applied Mathematics and Nonlinear Sciences
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