We show that stratified context unification, which is one of the most expressive fragments of context unification known to be decidable, is equivalent to the satisfiability proble...
We show that any institution I satisfying some reasonable conditions can be transformed into another institution, Ibeh, which captures formally and abstractly the intuitions of add...
The annotation of the results of database transformations was shown to be very effective for various applications. Until recently, most works in this context focused on positive q...
The piecewise-linear approximation technique developed by Juli´an et al. in the past few years is applied to dynamical systems dependent on given numbers of state variables and p...
Abstract. For completely specified decision tables lower and upper approximations are unique, the lower approximation is the largest definable set contained in the approximated set...