Keyphrases
- query processing
- query language
- tree patterns
- index structure
- database
- distance measure
- user queries
- query evaluation
- indexing schemes
- range queries
- r tree
- database queries
- efficient processing
- response time
- distance matrix
- tree structure
- complex queries
- tree structures
- decision trees
- reverse k nearest neighbor
- access methods
- query terms
- retrieval systems
- pattern languages
- indexing techniques
- distance computation
- pre computed
- tree edit distance
- tree nodes
- frequent updates
- euclidean distance