Keyphrases
- text mining
- natural language processing
- chinese stock market
- scale space
- text classification
- text summarization
- knowledge discovery
- information extraction
- information retrieval
- link analysis
- textual documents
- database
- biomedical literature
- web mining
- textual data
- chinese language
- named entities
- text categorisation
- text clustering
- scale invariant
- text documents
- topic models
- website
- machine learning
- databases