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Structural characterizations of the navigational expressiveness of relation algebras on a tree.
George H. L. Fletcher
Marc Gyssens
Jan Paredaens
Dirk Van Gucht
Yuqing Wu
Published in:
CoRR (2015)
Keyphrases
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relation algebra
expressive power
tree structure
binary tree
tree models
tree structures
structural information
regression trees
b tree
tree search
temporal reasoning
acyclic database schemes
tree construction
spatial reasoning
database
r tree
hierarchical structure
index structure
fuzzy sets
bayesian networks