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Long-term dependencies:

The problem of long-term dependencies, or the problems when training DTRNN to perform tasks in which a late output depends on a very early input which has to be remembered, is more specific to DTRNN, because it is a sequence-processing problem; one of the most exhaustive studies of this problem has been done by Bengio et al. (1994) (see (Haykin, 1998, 773)). See section 3.6 for a discussion.



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