Keyphrases
- metadata
- wireless sensor networks
- digital libraries
- data aggregation
- metadata extraction
- dublin core
- energy efficient
- application programming interface
- multimedia
- learning objects
- source code
- resource discovery
- open source
- sensor nodes
- sensor networks
- metadata management
- energy consumption
- learning resources
- metadata elements
- databases
- data transmission
- resource limitations
- heterogeneous wireless sensor networks
- application developers
- resource constrained
- search tools
- topic maps
- information resources
- data warehouse