On Positive Relational Calculi.

Renata P. de Freitas Paulo A. S. Veloso Sheila R. M. Veloso Jorge Petrucio Viana

Published in: Log. J. IGPL (2007)

Keyphrases

relational databases
positive and negative
data model
positively correlated
database
relational data
relational queries
real time
data sets
databases
relational learning
social networks
website
relational structures
sequent calculi