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基于卷积神经网络的远程教育质量评估预测模型的构建。

Construction of a Prediction Model for Distance Education Quality Assessment Based on Convolutional Neural Network.

机构信息

School of Management, Anhui Science and Technology University, Chuzhou, Anhui 233100, China.

出版信息

Comput Intell Neurosci. 2022 Sep 5;2022:8937314. doi: 10.1155/2022/8937314. eCollection 2022.

Abstract

This paper introduces the principles and operation steps of convolution and pooling of convolutional neural networks in detail. In view of the shortcomings of fixed sampling points and single receptive field in traditional convolution and pooling forms, deformable convolution and deformable pooling are introduced to enhance the network's ability to adapt to image details and large displacement problems. The concepts of warp, loop optimization, and network stack are introduced. In order to improve the optimization performance of the algorithm, three subnetwork structures and stack models are designed, and various methods are used to improve the prediction accuracy of distance education quality assessment. In order to improve the accuracy and timeliness of education quality assessment, this paper proposes a distance education quality assessment model based on mining algorithms. The prediction index is selected by the improved BP neural network. It is required to establish the input layer node as the input vector based on the number of data sources since the input layer is used for data input. The neural network is trained with a quarter of the mining data, and the mining algorithm is further trained with network error trials. A fuzzy relationship matrix is created based on the assessment of teaching quality's hierarchical structure. This leads to the conclusion of the fuzzy thorough evaluation of the effectiveness of distant learning. Experiments show that the proposed model has an average accuracy of 96%, the average teaching quality modeling time is 25.44 ms, and the evaluation speed is fast.

摘要

本文详细介绍了卷积神经网络的卷积和池化的原理和操作步骤。针对传统卷积和池化形式中固定采样点和单一感受野的缺点,引入了可变形卷积和可变形池化,增强了网络对图像细节和大位移问题的适应能力。介绍了扭曲、循环优化和网络堆叠的概念。为了提高算法的优化性能,设计了三种子网结构和堆叠模型,并采用各种方法提高远程教育质量评估的预测精度。为了提高教育质量评估的准确性和时效性,提出了一种基于挖掘算法的远程教育质量评估模型。采用改进的 BP 神经网络进行预测指标的选择,根据数据源的数量确定输入层节点作为输入向量,因为输入层用于数据输入。用四分之一的挖掘数据对神经网络进行训练,并用网络误差试验对挖掘算法进行进一步训练。根据教学质量层次结构的评估创建模糊关系矩阵,从而得出远程学习有效性的模糊综合评价结论。实验表明,所提出的模型具有 96%的平均准确率,平均教学质量建模时间为 25.44ms,评估速度较快。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa2c/9467773/2fac9af96128/CIN2022-8937314.001.jpg

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