Author:
Ma Chi,Lu Shengliang,Wang Shaofan
Abstract
Abstract
This article uses stock market data and text information to construct related complex networks of stock information, and compares the cluster analysis effect of three community discovery algorithms base on two networks to discuss how to classify stocks in order to give Investors provide better reference. First, transform the heterogeneous data into structured data by obtaining and preprocessing. Then, build an association network based on the similarity of stock price fluctuations and the correlation of stock text information. Finally, using three different cluster analysis algorithms to analyze the stock association network and the text similarity network to compare the effects of different algorithms on stock classification.
Subject
General Physics and Astronomy
Reference9 articles.
1. Scale-free Network in Financial Correlations [J];Kim;Journal of the Physical Society of Japan,2001
2. Finding and evaluating community structure in networks [J];Newman;Physical Review E Statistical Nonlinear & Soft Matter Physics,2004
3. Online community detection for large complex networks [C];Zhang,2014
4. Optimal multi-community network modularity for information diffusion [J];Wu;International Journal of Modern Physics C,2016
5. Information-theoretic thresholds for community detection in sparse networks [J];Banks,2016