Keyphrases
- semantic web
- knowledge representation
- owl ontologies
- semantic web technologies
- feature extraction
- ontology evolution
- feature set
- knowledge base
- feature space
- co occurrence
- ontology development
- domain knowledge
- temporal structure
- ontology learning
- ontology mapping
- feature vectors
- knowledge organization
- ontology alignment
- ontology matching
- image features
- semantic annotation
- temporal information
- semi automatic
- low level
- text mining
- natural language processing