Keyphrases
- xml elements
- ranked retrieval
- xml documents
- clustering method
- retrieval systems
- clustering algorithm
- information retrieval
- xml data
- document structure
- structural information
- document retrieval
- relevance feedback
- metadata
- information retrieval systems
- unsupervised learning
- data points
- k means
- document clustering
- self organizing maps
- data clustering
- data integration
- image database
- data model
- query expansion
- hierarchical clustering
- xml schema
- object oriented
- retrieval method
- categorical data
- xml databases
- xml retrieval
- databases
- image retrieval
- xml format
- similarity matching
- structured documents
- markup language
- xml queries
- topic maps
- multimedia databases
- keyword search
- retrieval model
- test collection