Keyphrases
- metadata
- user contributed
- digital photos
- personal photo collections
- digital libraries
- multimedia
- learning objects
- case study
- visual features
- electronic commerce
- multimedia content
- learning resources
- databases
- geo referenced
- metadata extraction
- photo sharing
- heterogeneous data
- information resources
- database
- dublin core
- digital objects
- semantic search
- earth science
- semantic information
- metadata standards
- image database
- current practices
- software engineering
- structured data