Research On Stock Investment Decision-making Method Based On Data Mining

With the development of stock market,the related methods of stock investment decision are also improving.In the process of investment decision-making,investors refer to different indicators,some refer to technical indicators,some refer to macro policies,some refer to external news.In a market where stock information is so abundant,the standards of how to select truly valuable information to help investors make investment decisions vary from industry to industry.Considering the clear industry standards and the true reliability of the data,the section analyzed in this paper is the commercial bank plate data.This paper selects the financial data and stock price data from 2008 to 2017,carries on the correlation analysis through the financial index,then carries on the decision tree stock selection analysis,finally carries on the comparative analysis,the verification analysis,and has carried on the summary to the conclusion.First of all,this paper introduces the research background,significance,research status at home and abroad,research content and the methods used,that is,empirical analysis methods.The relevant theories and data mining methods of investment decision-making involved in the empirical research are analyzed in detail,and the theoretical preparation for the empirical research is made.Secondly,this paper introduces the process of perfecting the investment decision-making method in our country,summarizes the present situation of the investment decision-making and the existing problems,and points out the influence on the stock price.It lays a foundation for the later empirical analysis of the feasibility of the financial selection model.Finally,through the construction of financial index system,the establishment of correlation relationship model,the correlation analysis of financial indicators,to explore the unique characteristics and relationship of financial indicators of banks.This paper analyzes the influence effect of financial indexes on the stock price of Chinese banks,and establishes the model of stock selection decision rules.Through the analysis of the present situation and empirical analysis of this paper,it is concluded that it is feasible to use data mining to analyze stock financial data.In view of the conclusion of the paper,this paperverifies the effectiveness of the conclusion,and summarizes the methods in order to improve the level of investor analysis of stocks.