Efficient Top-K Query Algorithms Using Density Index.
Dongqu ChenGuang-Zhong SunNeil Zhenqiang GongXiaoqiang ZhongPublished in: ICAIC (1) (2011)
Keyphrases
- data structure
- database
- access methods
- indexing structure
- query evaluation
- computationally efficient
- databases
- database queries
- indexing techniques
- index structure
- computational cost
- significant improvement
- query processing
- computational complexity
- exact and approximate
- indexing schemes
- similarity queries
- aggregate queries
- disk accesses
- suffix tree
- range queries
- multi dimensional
- relevance feedback
- data sources