Keyphrases
- expert systems
- intelligent systems
- query processing
- query evaluation
- user queries
- database
- search mechanism
- range queries
- response time
- data sources
- keywords
- relevance feedback
- query formulation
- data structure
- knowledge based expert systems
- object retrieval
- retrieval method
- decision support
- original query
- complex queries
- computational model
- query expansion
- knowledge acquisition
- search engine
- selection mechanism
- context aware
- boolean queries
- high level query language
- retrieval process
- database queries
- vector space
- retrieval systems
- knowledge based systems
- multi dimensional
- case based reasoning
- knowledge base
- data sets