Keyphrases
- nearest neighbor
- range searching
- nearest neighbor queries
- response time
- database
- query processing
- knn
- user queries
- query point
- triangle inequality
- relevance feedback
- query evaluation
- retrieval systems
- reverse nearest neighbor
- training set
- range queries
- k nearest neighbor
- complex queries
- query formulation
- data points
- approximate nearest neighbor
- distance function
- user interaction
- retrieval method
- query expansion
- vector space
- database queries
- xml documents
- data structure
- databases