Keyphrases
- semantic integration
- conceptual schemas
- conceptual schema
- public administration
- xml schema
- service provision
- semantic representation
- information integration
- entity relationship
- semantic heterogeneity
- semantic relationships
- e government
- integrity constraints
- database schema
- relational databases
- reverse engineering
- heterogeneous data sources
- digital government
- public sector
- xml documents
- database
- conceptual model
- information sharing
- natural language processing
- object oriented
- data model
- search engine
- machine learning