QAL: A Query Algebra of Complex Objects.

Iztok Savnik Zahir Tari Tomaz Mohoric

Published in: Data Knowl. Eng. (1999)

Keyphrases

complex objects
relational model
invariant recognition
query language
nested relations
computationally simple
distance function
database systems
relational algebra
object representations
multiple inheritance
multiple range images
machine learning
color images