For English, PWN has been used while for Czech, Romanian and Bulgarian WordNets from the BalkaNet project have been used.
that is, we find: In order to maximize ܳሺΘ, Θ ିଵ ሻ subject to constraint has shown in formula (2), we introduce the Lagrange multiplier λ and to find the expression for ߠ ௪,௧ , we should to solve the following equation: Whit solving differential equation 7, we obtain the new value of parameters as follows: in order to calculate new estimation of parameters, according to the formula (8) we must iterate over all possible sense tagged sequences ܶ ଵ for Persian word sequence ‫ݓ‬ ଵ .