Keyphrases
- relational databases
- xml documents
- database
- information retrieval
- document collections
- databases
- web documents
- metadata
- relevant documents
- text documents
- document classification
- functional dependencies
- document retrieval
- information retrieval systems
- user queries
- legal documents
- structured databases
- sql queries
- relational data
- relational model
- xml data
- normal form
- document clustering
- document set
- pre classified
- ranked list
- digital libraries
- database programming
- data model
- object oriented