期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Parameters Optimization Using Genetic Algorithms in Support Vector Regression for Sales Volume Forecasting 被引量:1
1
作者 fong-ching yuan 《Applied Mathematics》 2012年第10期1480-1486,共7页
Budgeting planning plays an important role in coordinating activities in organizations. An accurate sales volume forecasting is the key to the entire budgeting process. All of the other parts of the master budget are ... Budgeting planning plays an important role in coordinating activities in organizations. An accurate sales volume forecasting is the key to the entire budgeting process. All of the other parts of the master budget are dependent on the sales volume forecasting in some way. If the sales volume forecasting is sloppily done, then the rest of the budgeting process is largely a waste of time. Therefore, the sales volume forecasting process is a critical one for most businesses, and also a difficult area of management. Most of researches and companies use the statistical methods, regression analysis, or sophisticated computer simulations to analyze the sales volume forecasting. Recently, various prediction Artificial Intelligent (AI) techniques have been proposed in forecasting. Support Vector Regression (SVR) has been applied successfully to solve problems in numerous fields and proved to be a better prediction model. However, the select of appropriate SVR parameters is difficult. Therefore, to improve the accuracy of SVR, a hybrid intelligent support system based on evolutionary computation to solve the difficulties involved with the parameters selection is presented in this research. Genetic Algorithms (GAs) are used to optimize free parameters of SVR. The experimental results indicate that GA-SVR can achieve better forecasting accuracy and performance than traditional SVR and artificial neural network (ANN) prediction models in sales volume forecasting. 展开更多
关键词 BUDGETING Planning SALES Volume Forecasting Artificial Intelligent Support VECTOR Regression GENETIC Algorithms Artificial NEURAL Network
下载PDF
Investigating Relationship between Google Index and Corporate Profit Using Random Forest
2
作者 fong-ching yuan Chao-Hui Lee 《Applied Mathematics》 2018年第1期35-43,共9页
An automatic analysis of financial figures is common way for investors to analyze financial reports. However, using solely financial statements does not represent the comprehensive financial story of a company. Recent... An automatic analysis of financial figures is common way for investors to analyze financial reports. However, using solely financial statements does not represent the comprehensive financial story of a company. Recently, many people express their opinions and search for information on the Internet. The adoption of the Internet has generated another type of data for analysis, i.e. Google Index. The purpose of this research is to prove Google Index is a good indicator for investors to analyze companies’ status. In this study, random forest (RF) is used to investigate the relationship between company’s financial performance and financial ratios and Google Index. From the results of RF model, we can see Google trend also plays a major role in determining the company’s profit except the stock index and operating margin. 展开更多
关键词 Internet GOOGLE INDEX Random FOREST FINANCIAL Performance
下载PDF
Intelligent GPS-Less Speed Detection and Clustering in VANET
3
作者 Tein-Yaw Chung fong-ching yuan Wen-Mei Cheng 《Computer Technology and Application》 2012年第9期601-608,共8页
关键词 聚类算法 速度检测 智能分类 GPS 车辆通信 无线网络 全球定位系统 人工神经网络
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部