In recent years, under the context of rapid development of information technology, the demand for personalized teaching in higher vocational computer courses has become increasingly high, and the shortcomings of tradi...
详细信息
The rapid advancements in artificial intelligence (AI) and deep learning have revolutionized various sectors, enabling unprecedented levels of innovation and efficiency. This paper delves into the transformative impac...
详细信息
As an important cornerstone of future information and communication technology, the computing power network cleverly integrates cloud resources, third-party computing devices, and various heterogeneous computing resou...
详细信息
Due to limited budgets and complex testing procedures to determine resilient modulus (MR), engineers often rely on correlations between modulus and other engineering properties such as unconfined compressive strength ...
详细信息
Due to limited budgets and complex testing procedures to determine resilient modulus (MR), engineers often rely on correlations between modulus and other engineering properties such as unconfined compressive strength (UCS). However, a majority of such correlations are based on linear regression, which can often lead to under or over-prediction of the correlated values. With the advancement in computing techniques, it has become convenient to understand and predict the behavior of engineering materials using optimization techniques. In this study, two machine learning (ML) techniques, including Artificial Neural Network (ANN) and Random Forest (RF), were used to predict the MR values from UCS data. Mean Absolute Error (MAE), Root Mean Square Error (RMSE), and coefficient of determination (R) were computed to assess the effectiveness of the models. The statistical analysis of the testing sets indicated that the RF model achieved a goodness of fit value of 0.97, an MAE of 12.7 MPa, and an RMSE of 18.5 MPa. Alternatively, the ANN model indicated the corresponding goodness of fit value of 0.71 with an MAE of 44.3 MPa and an RMSE of 60.9 MPa. Furthermore, among various contributing factors, UCS was identified as the primary factor in predicting MR values for both models. Based on these findings, the RF model outperformed the ANN model in predicting unknown data within the examined parameter ranges and provides fitting parameters depending on the nature of the datasets, which avoids the overfitting effect. Therefore, this study demonstrates a progressive understanding of the potential use of the advanced computing tool to obtain more accurate resilient modulus values from the strength data.
The traditional self-supervised methods based on skeleton data frequently categorize the various enhancements of a given sample as positive examples, while the remaining samples are designated as negative examples. Th...
详细信息
The traditional self-supervised methods based on skeleton data frequently categorize the various enhancements of a given sample as positive examples, while the remaining samples are designated as negative examples. This approach results in a significant imbalance in the ratio of positive to negative samples, which in turn constrains the efficacy of samples with identical semantic information. Therefore, to further improve the training quality in tennis teaching and enhance the accuracy of action recognition, a dual chain sharing unsupervised action recognition algorithm has been proposed. This study first designs a skeleton topology data augmentation method based on the physical connections of human joints to obtain advanced semantic embeddings. Then, an improved positive sample expansion strategy is utilized to enhance the diversity and quality of training data. Next, an unsupervised learning mechanism is employed to autonomously learn and recognize complex patterns of tennis movements. To measure the performance of the model, tests were conducted on its accuracy, F1 score, recognition time, and fitting degree. The experimental results showed that the proposed algorithm could reach its optimal state after 23 iterations of training, and its F1 value reached 0.918, with an average accuracy of 92.9 % and an average recognition time of 7.4 s. The research algorithms were superior to the multi-input branch graph convolutional network action recognition algorithms used for comparison, pull-push contrastive loss action recognition algorithms, and multi-granularity anchor contrastive representation learning action recognition algorithms. Its accuracy was leading by 8.6 %-23.5 %, and the recognition time has been reduced by 2.3s-7.4 s. In addition, in terms of the fitting degree of action recognition, compared with other methods, the proposed method had a fitting degree of up to 95.7 %, which was at least 8.1 % higher. This research method can improve the timeliness of feed
With the development of society and the growth of population in Haikou city, the driving school market in Haikou faces a series of challenges such as unreasonable teaching methods, cumbersome registration processes, n...
详细信息
Producing executable code from natural-language directives via Large Language Models (LLMs) involves obstacles like semantic uncertainty and the requirement for task-focused context interpretation. To resolve these di...
详细信息
Skin melanoma is one of the most dangerous forms of skin cancer and it was discovered that accurate and early screening significantly enhances patients’ prognosis. Since Dermoscopy and computational studies have enha...
详细信息
Colon and rectal cancer are among the leading causes of cancer-related illness and death worldwide. The detection and treatment of colon cancer are viewed as social and economic issues due to the high fatality rates. ...
详细信息
Natural disasters such as earthquakes, floods are becoming more frequent and severe due to climate change and urban expansion. The ability to quickly detect and assess the severity of such events is necessary requirem...
详细信息
暂无评论