Keyphrases
- negative matrix factorization
- stock market
- financial markets
- matrix factorization
- short term
- stock price
- trading rules
- document clustering
- stock exchange
- principal component analysis
- sparse representation
- financial time series
- stock index futures
- stock returns
- financial news
- garch model
- long term
- financial data
- spectral clustering
- stock data
- market data
- stock trading
- chinese stock market
- image processing
- risk management
- missing data
- information retrieval