The resulting training procedure is analogous to the one presented in ( Brown et al. , 1993 ) and ( Tillmann and Ney , 1997 ) .
word triggers and the em algorithm
Christoph Tillmann Hermann Ney
The function Î´ ( Â· , Â· ) denotes the Kronecker delta . The resulting training procedure is analogous to the one presented in ( Brown et al. , 1993 ) and ( Tillmann and Ney , 1997 ) . The next section presents variants of the basic unconstrained model by putting restrictions on the valid regions of triggers ( in-phrase vs. out-ofphrase ) and using alignments obtained from either GIZA + + training or forced alignments in order to reduce the model size and to incorporate knowledge already obtained in previous training steps .
The resulting training procedure is analogous to the one presented in ( Brown et al. , 1993 ) and ( @@CITATION ) .