Keyphrases
- web services
- quality of service
- response time
- web service selection
- database
- uncertain databases
- relevance feedback
- service selection
- web services composition
- query expansion
- query processing
- query evaluation
- user queries
- service oriented
- imprecise information
- decision making
- web services discovery
- data sources
- data structure
- keywords
- real time
- ip networks
- loosely coupled
- complex queries
- service composition
- business processes
- user interaction
- information retrieval systems
- database queries
- retrieval method
- semantic web services
- ad hoc networks
- range queries
- query terms
- retrieval systems
- traffic engineering
- search engine