Keyphrases
- document structure
- structure extraction
- xml documents
- structured documents
- document representation
- relevant documents
- semantic information
- bag of words
- web pages
- passage retrieval
- text summarization
- web documents
- action recognition
- hierarchical structures
- data extraction
- data mining
- language model
- information retrieval systems
- text mining
- information extraction
- natural language
- feature selection
- machine learning