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arXiv 2005.04955q-fin.STcs.LG
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基于多图卷积网络的股票走势预测

Multi-Graph Convolutional Network for Relationship-Driven Stock Movement Prediction

University of Chinese Academy of Sciences(中国科学院大学);University of Macau(澳门大学)

Jiexia Ye, Juanjuan Zhao, Kejiang Ye, Chengzhong Xu

摘要:

由于金融市场的波动性,股票价格走势预测被普遍认为是一项非常具有挑战性的任务。以往的研究主要是根据股票自身的信息来预测股票价格,忽略了股票之间的交叉效应。然而,众所周知,单个股票的价格与其他股票的价格以复杂的方式相关。为了考虑交叉效应,我们提出了一个名为Multi-GCGRU的深度学习框架,它包括图卷积网络(GCN)和门控递归单元(GRU)来预测股票走势。具体来说,我们首先编码的股票之间的多种关系到图的基础上,金融领域的知识,并利用GCN提取交叉效应的基础上,这些预定义的图。为了进一步摆脱先验知识,我们探索了一种由数据自动学习的自适应关系。GCN产生的互相关特征与历史记录连接在一起,然后输入GRU以模拟股票价格的时间依赖性。在中国股市两个股指上的实验表明,我们的模型优于其他基线。请注意,我们的模型是相当可行的,以纳入更有效的股票关系,包含专家知识,以及学习数据驱动的关系。

英文摘要:

Stock price movement prediction is commonly accepted as a very challenging task due to the volatile nature of financial markets. Previous works typically predict the stock price mainly based on its own information, neglecting the cross effect among involved stocks. However, it is well known that an individual stock price is correlated with prices of other stocks in complex ways. To take the cross effect into consideration, we propose a deep learning framework, called Multi-GCGRU, which comprises graph convolutional network (GCN) and gated recurrent unit (GRU) to predict stock movement. Specifically, we first encode multiple relationships among stocks into graphs based on financial domain knowledge and utilize GCN to extract the cross effect based on these pre-defined graphs. To further get rid of prior knowledge, we explore an adaptive relationship learned by data automatically. The cross-correlation features produced by GCN are concatenated with historical records and then fed into GRU to model the temporal dependency of stock prices. Experiments on two stock indexes in China market show that our model outperforms other baselines. Note that our model is rather feasible to incorporate more effective stock relationships containing expert knowledge, as well as learn data-driven relationship.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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