基于动态影响图的股市趋势预测  

Stock Market Trend Prediction Based on Dynamic Influence Diagrams

作　　者：姚宏亮[1] 徐礼维 杨静[1] 俞奎[1] YAO Hongliang;XU Liwei;YANG Jing;YU Kui(School of Computer and Information,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学计算机与信息学院,合肥230009

出　　处：《计算机工程与应用》2022年第15期162-168,共7页Computer Engineering and Applications

基　　金：国家自然科学基金面上项目(61876206);安徽省关键研究与开发计划项目(201904a05020073)。

摘　　要：历史数据对未来状态的影响具有隐蔽性,导致基于数据的股市趋势预测是一个公开难题。为了有效地发现历史数据对股市未来状态的影响力,利用动态影响图建模成交量和K线形态之间的结构关系,提出一种基于量价结构关系的联合树推理预测算法(VP-JT)。提取股票的阶段成交量特征和阶段K线形态特征,给出阶段成交量对于股市价格影响的作用原理;利用配合度量化当前阶段成交量与K线形态之间关系一致性程度;利用动态影响图建模阶段量价在时间上的作用过程;通过联合树的自动推理对股市未来状态进行预测。在实际数据上进行实现和算法比较,实验结果表明量价结构关系的联合树推理算法具有更高的准确率。The influence of historical data on the future state is hidden,which makes the stock market trend prediction based on data a difficult problem.In order to effectively discover the influence of historical data on the future state of the stock market,dynamic influence diagrams are used to model the structural relationship between trading volume and K line patterns,and a joint tree inference prediction algorithm based on the structural relationship between volume and price structure is proposed(VP-JT).This paper extracts the characteristics of phase volume and phase K-line morphological features of the stock,and gives the principle of the effect of phase volume on the stock market price.The degree of cooper-ation is used to quantify the consistency of the relationship between the current phase volume and the K-line pattern.Furthermore,the dynamic influence diagram is used to model the action process of volume and price on time in the modeling stage.The future trend of the stock market is predicted by the automatic inference of the joint tree.After the algorithm being implemented and compared on actual data,it is shown by the experimental results that the joint tree inference algorithm based on the structural relationship between volume and price has higher accuracy.

关 键 词：动态影响图 配合度 效用函数 联合树 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]