Keyphrases
- query language
- sparql queries
- data model
- rdf data
- xml data
- rewriting rules
- semantic web
- xml documents
- query rewriting
- conjunctive queries
- linked data
- query optimization
- query evaluation
- database
- information filtering
- median filter
- filtering algorithm
- query processing
- adaptive filtering
- xml query languages
- data sets
- relational algebra
- filtering method
- denoising
- image processing
- update operations
- xml format