期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
基于K-CV参数优化的SVR煤炭含碳量预测 被引量:1
1
作者 王子铭 金光 《南阳理工学院学报》 2020年第6期64-68,共5页
煤炭的含碳量是衡量煤质的重要指标,传统的检测方法操作复杂、成本高,现有的预测模型精度有待进一步提高,为解决上述问题,提出一种基于K-fold Cross Validation(K-CV)参数优化的支持向量回归(SVR)预测模型。以煤炭质量检测中心提供的80... 煤炭的含碳量是衡量煤质的重要指标,传统的检测方法操作复杂、成本高,现有的预测模型精度有待进一步提高,为解决上述问题,提出一种基于K-fold Cross Validation(K-CV)参数优化的支持向量回归(SVR)预测模型。以煤炭质量检测中心提供的80组原始数据作为实验对象,选取其中的50组作为训练集,剩余的30组作为测试集。以训练集作为K-CV方法的样本数据寻找最优参数,以最优参数为基础建立SVR预测模型,并通过测试集对模型进行验证,结果表明含碳量预测的平均相对误差达到0.38%,该模型预测精度较高,具有良好的泛化性能。 展开更多
关键词 含碳量 k-fold cross validation 支持向量回归 预测
下载PDF
Classification and Diagnosis of Lymphoma’s Histopathological Images Using Transfer Learning
2
作者 Schahrazad Soltane Sameer Alsharif Salwa M.Serag Eldin 《Computer Systems Science & Engineering》 SCIE EI 2022年第2期629-644,共16页
Current cancer diagnosis procedure requires expert knowledge and is time-consuming,which raises the need to build an accurate diagnosis support system for lymphoma identification and classification.Many studies have s... Current cancer diagnosis procedure requires expert knowledge and is time-consuming,which raises the need to build an accurate diagnosis support system for lymphoma identification and classification.Many studies have shown promising results using Machine Learning and,recently,Deep Learning to detect malignancy in cancer cells.However,the diversity and complexity of the morphological structure of lymphoma make it a challenging classification problem.In literature,many attempts were made to classify up to four simple types of lymphoma.This paper presents an approach using a reliable model capable of diagnosing seven different categories of rare and aggressive lymphoma.These Lymphoma types are Classical Hodgkin Lymphoma,Nodular Lymphoma Predominant,Burkitt Lymphoma,Follicular Lymphoma,Mantle Lymphoma,Large B-Cell Lymphoma,and T-Cell Lymphoma.Our proposed approach uses Residual Neural Networks,ResNet50,with a Transfer Learning for lymphoma’s detection and classification.The model used results are validated according to the performance evaluation metrics:Accuracy,precision,recall,F-score,and kappa score for the seven multi-classes.Our algorithms are tested,and the results are validated on 323 images of 224×224 pixels resolution.The results are promising and show that our used model can classify and predict the correct lymphoma subtype with an accuracy of 91.6%. 展开更多
关键词 CLASSIFICATION confusion matrices deep learning k-fold cross validation lymphoma diagnosis residual neural network transfer learning
下载PDF
Application of artificial intelligence for separation of live and dead rainbow trout fish eggs 被引量:1
3
作者 Abbas Rohani Morteza Taki Ghasem Bahrami 《Artificial Intelligence in Agriculture》 2019年第1期27-34,共8页
In this study a visual machine technology-based intelligent system was developed and evaluated for separation and recognizing the alive and dead eggs of rainbow trout fish.The features derived from imagery processing ... In this study a visual machine technology-based intelligent system was developed and evaluated for separation and recognizing the alive and dead eggs of rainbow trout fish.The features derived from imagery processing of alive and dead eggs were used as the decision-making variables in the classifier.Multi-layer Perceptron neural network(MLP)and Support Vector Machine(SVM)models were used as the classifiers.With paired t-test,10 effective features were selected from 15 features for classification.The k-fold cross validation method was used for better evaluation the classifiers.By changing the size of the training data set from 80%to 20%,the classifier ability and stabilitywere evaluated.The results showed that in the training phase,all the mean values of the statistical indices forMLP and SVMclassificationswere complete for all categories(100%of the classification was predicted correctly).Also,in the test phase,the performance indicators of both classifiers were very satisfactory(the average accuracywas 99.45%).Therefore,it is possible to use both classifierswith certainty for separation the rainbow trout fish eggs. 展开更多
关键词 Rainbow trout Fish egg k-fold cross validation Machine vision system
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部