285 search results - page 25 / 57 » Optimization of Real Conjunctive Queries |
PPDP
2010
Springer
13 years 5 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
TKDE
2002
13 years 7 months ago
2002
We introduce ImageMap, as a method for indexing and similarity searching in Image DataBases (IDBs). ImageMap answers "queries by example", involving any number of object...
VLDB
2005
ACM
14 years 26 days ago
2005
ACM
Devising a scheme for efficient and scalable querying of Resource Description Framework (RDF) data has been an active area of current research. However, most approaches define new...
ICDE
1999
IEEE
14 years 8 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...
SIGMOD
2010
ACM
13 years 5 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...