Keyphrases
- knowledge representation
- semantic web
- ontology engineering
- artificial intelligence
- knowledge base
- logic programming
- formal ontologies
- case retrieval
- query expansion
- description logics
- engineering design
- knowledge engineering
- data processing
- knowledge based systems
- domain ontology
- information retrieval
- automated reasoning
- penn state
- machine learning
- natural language processing
- expert systems
- image retrieval
- domain specific
- case study
- semantic query
- engineering education
- paradigm shift
- key technologies
- domain knowledge
- test collection
- knowledge acquisition
- software engineering
- image database
- document retrieval
- multimedia databases
- retrieval method
- knowledge structures
- semantic search
- legal knowledge
- ontology development
- natural language
- information retrieval systems
- patent information
- co occurrence
- conceptual structures
- related concepts
- computer science
- owl ontologies
- retrieval systems
- relevance feedback