System and User Data Complexity.

Igor E. Kuralenok Alexey V. Utkin Vitaly Klyuev

Published in: CIT (2006)

Keyphrases

data complexity
expressive power
query answering
query evaluation
combined complexity
conjunctive queries
np complete
lower complexity
double exponential
data exchange
integrity constraints
low complexity
ontology languages
dl lite
regular path queries
exptime complete
metadata
data sets