规划识别在股票市场中融资行为的研究
2021-10-24曾庆彬胡广朋
曾庆彬 胡广朋



摘要: 规划识别是一种属于心理学和人工智能的交叉学科,能从观察到的某一智能体的动作出发,推导出该智能体规划的过程。将该方法运用到股市中去,通过分析数据并且结合投资者的心理,使投资者做出合理的融资行为。文章提出了由三层模型组成的基于规划识别的融资行为分析算法,在第一层中引入马尔科夫链去预测智能体的行为概率,在第二层中构建规划识别图,进一步预测行为概率,在第三层对智能体的行为进行规划。该算法通过实例进行了验证。
关键词: 规划识别; 融资行为; 多层推理; 马尔科夫链
中图分类号:TP399 文献标识码:A 文章编号:1006-8228(2021)10-78-04
Studying financing behavior in stock market with plan recognition
Zeng Qingbin1, Hu Guangpeng2
(School of Computer Science, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)
Abstract: Plan recognition is an interdisciplinary subject of psychology and artificial intelligence. It can deduce the planning process of an agent from the observed actions. Applying this method to the stock market can help investors to make reasonable financing behavior by analyzing the data and combining with the psychology of investors. In this paper, a plan recognition based financing behavior analysis algorithm composed of a three-tier model is proposed. In the first layer Markov chain is introduced to predict the behavior probability of the agent, in the second layer plan identification graph is constructed to further predict the behavior probability, and in the third layer the agent's behavior planning is carried out. The algorithm is verified by an example.
Key words: plan recognition; financing behavior; multi-layer reasoning; Markov chain
0 引言
自从2010年开始 ,融资融券业务在中国施行,引入了卖空机制,这就意味着中国的股市格局从此不只有“单边市”[1]。融资融券在股市价格稳定器的作用,也提供更多的投资手段,有利于股市健康发展。
截至2020年底,我国已经实施融资业务十多年。在学术界,对这方面的学术成果也颇为丰厚。陈伟(2011)对我国两融交易数据进行了实证分析,得出融资可以减小股市的波动[2];夏丹和邓梅(2011)以沪深300指数为研究对象,采用OLS模型进行估计,得出融资可以加剧股市的波动[3];Battalio将某些国家股市引进两融业务前后波动率的基础数据作为样本实证发现,得出融资对股市的波动的效果不明显[4]。因此,融资对股市的波动有加剧、减小、不明显的作用,然而,之前大多数对融资的研究是通过对数据的处理,往往忽略了投资者的心理因素,得到的结果并不能准确地反映出投资者的融资意向,所以做出的分析往往不太合理。……
