Keyphrases
- html documents
- web information extraction
- extensible markup language
- semi structured
- xml documents
- web documents
- xml files
- semistructured data
- document structure
- xml data
- databases
- semantic information
- web pages
- markup language
- web data extraction
- xml format
- database objects
- structured documents
- database
- relational databases
- data model
- web content
- xml schema
- xml queries
- information integration
- topic maps
- information extraction
- html pages
- semi structured data
- web sources
- xml databases
- user interface
- web browser
- data extraction
- metadata
- xml retrieval
- data exchange
- database tables
- object oriented