An Ontology-Driven Information Retrieval Mechanism for Semantic Information Portals.
Jian GuanXiang ZhangJianming DengYuzhong QuPublished in: SKG (2005)
Keyphrases
- semantic information
- information retrieval
- vector space model
- semantic analysis
- semantic features
- keywords
- wordnet
- high level
- low level features
- metadata
- low level
- semantic knowledge
- information retrieval systems
- information extraction
- background knowledge
- domain knowledge
- semantic meaning
- contextual information
- structural information
- semantic relationships
- search engine
- tf idf
- semantic similarity
- query expansion
- xml documents
- semantic relatedness
- html documents
- domain ontology
- text mining
- linguistic information
- visual information
- test collection
- co occurrence
- feature extraction