Keyphrases
- twig queries
- labeling scheme
- xml documents
- xml data
- xpath expressions
- database
- twig pattern
- data retrieval
- markup language
- databases
- shortest path
- information retrieval
- data model
- efficient processing
- object oriented
- indexing methods
- path expressions
- metadata
- xml queries
- xml schema
- content based retrieval
- xml databases
- relational databases
- relational data
- xml format
- indexing scheme
- indexing method
- data exchange
- native xml databases
- xml query processing
- efficient query processing
- xpath queries
- text retrieval
- semi structured data
- data types
- mobile robot
- query processing
- query evaluation
- indexing techniques
- database systems
- inverted index