A Query-Based Horizontal Fragmentation Approach for Disjunctive Deductive Databases.
Yiu-Kai NgAparna SeetharamanPublished in: DEXA Workshop (1997)
Keyphrases
- disjunctive deductive databases
- horizontal fragmentation
- query evaluation
- deductive databases
- cost model
- query processing
- database
- user queries
- response time
- conjunctive queries
- xml data
- query language
- data management
- relevance feedback
- data complexity
- range queries
- vertical fragmentation
- query optimization
- query expansion
- data structure
- expressive power
- information retrieval systems
- data sources
- datalog programs
- high level
- search engine