Keyphrases
- metadata
- digital libraries
- learning objects
- dublin core
- database
- databases
- learning resources
- metadata management
- earth science
- data mining
- oai pmh
- data warehouse
- heterogeneous data
- metadata standards
- metadata extraction
- uniform access
- metadata elements
- cross cultural
- semantic content
- semantic search
- statistical information
- structured data
- neural network
- real time