Keyphrases
- xml documents
- xml data
- databases
- markup language
- xml databases
- video games
- metadata
- data model
- xml queries
- data exchange
- digital games
- game playing
- game design
- xml schema
- nash equilibria
- computer games
- game theory
- data integration
- semi structured
- game play
- database
- object oriented
- query language
- relational databases
- query rewriting
- rdf data
- coalitional games
- xpath queries
- nash equilibrium
- object oriented databases
- conjunctive queries
- query optimization