Query Languages for Domain Specific Information from PTF Astronomical Repository.

Yilang Wu Wanming Chu

Published in: DNIS (2015)

Keyphrases

domain specific information
query language
visual query language
expressive power
data model
domain ontology
digital libraries
recursive queries
conjunctive queries
relational algebra
query evaluation
metadata
database
learning objects
query optimization
xml data
wordnet
knowledge discovery