A tight characterization of NP with 3 query PCPs
Venkatesan GuruswamiDaniel LewinMadhu SudanLuca TrevisanPublished in: Electron. Colloquium Comput. Complex. (1998)
Keyphrases
- user queries
- query processing
- query expansion
- data structure
- query formulation
- response time
- database
- indexing techniques
- query evaluation
- range queries
- complex queries
- np complete
- upper bound
- information retrieval systems
- worst case
- lower bound
- computational complexity
- database queries
- object retrieval
- retrieval method
- answering queries
- multiple queries
- cost model
- data sources
- keywords
- data objects
- retrieval systems
- web search engines
- query execution
- index structure
- aggregate queries
- data sets