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Construction method and construction system for stock standard news library

A construction method and technology of news database, applied in the field of construction of stock standard news database, can solve the problems of low accuracy of output results, low efficiency, complex methods, etc., and achieve high timeliness, high processing efficiency, and simple construction methods. Effect

Inactive Publication Date: 2015-11-18
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, this method is more complicated, the efficiency is lower, and the accuracy of the output results is not high.

Method used

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  • Construction method and construction system for stock standard news library
  • Construction method and construction system for stock standard news library
  • Construction method and construction system for stock standard news library

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Embodiment Construction

[0062] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0063] Such as figure 1 Shown, a kind of construction method of stock standard news storehouse is characterized in that, comprises the following steps,

[0064] Step S1: using Internet tool web crawler to grab stock news information from the Internet;

[0065] Step S2: Build stock standard library Z 0 ;

[0066] Step S3: Precompile the text in the stock standard library;

[0067] Step S4: Identify text features and select feature words;

[0068] Step S5: Calculate the information gain of the feature word to obtain the feature value of the feature word;

[0069] Step S6: use feature value training to support the SVM algorithm, and obtain a classification model for extracting news features;

[0070] Step S7: Utilize the classification model to update the st...

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Abstract

The present invention relates to a construction method and a construction system for a stock standard news library. The construction method comprises: acquiring stock news information; constructing a stock standard library Z0; pre-compiling texts in the stock standard library; marking text features, and selecting feature words; computing information gain of the feature words so as to obtain feature values of the feature words; training and supporting an SVM algorithm by use of the feature values so as to obtain a classification module for extracting news features; updating the stock standard library by use of the classification model; updating and adjusting news composition in the stock standard library; and determining whether grabbed news information is positive news or negative news so as to construct the classification model, and continuously updating the news information in a database by virtue of a vector machine algorithm so as to realize the construction of the news library. The data base construction method is simple, is convenient in implementation, and is high in news data processing efficiency, and data information is updated in time and is accurate.

Description

technical field [0001] The invention relates to the technical field of word information processing, in particular to a method for constructing a stock standard news database. Background technique [0002] As an important part of market information, stock market news is widely analyzed and used by investors. With the rapid development of the Internet, the speed of news dissemination and information change is very large. With such a large amount of information, more and more financial institutions rely on computers to analyze the data, and the related analysis and forecasting system can help investors filter noise information and make reasonable choices. [0003] There are many methods for statistical analysis and forecasting of stock prices. Some traditional technical analysis methods include stock price graphic analysis (point line graph, line graph, K-line graph, etc.), trend analysis (trend line, channel line, golden section line, etc.), index analysis (Stochastic indica...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/35G06F16/951
Inventor 金学波
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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