Adaptive query relaxation and top-k result ranking over autonomous web databases.
Xiangfu MengXiaoyan ZhangYanhuan TangChongchun BiPublished in: Knowl. Inf. Syst. (2017)
Keyphrases
- query relaxation
- web databases
- knowledge driven
- approximate answers
- databases
- deep web
- user queries
- query answering
- data management
- query processing
- data sources
- database technology
- database
- relational databases
- database systems
- web users
- key technologies
- complex queries
- query interface
- semi structured
- website
- data mining
- structured data