 With the transformer based models dominating the seq2seq problems lately, a natural question is to understand the applicability of the notion of hierarchy in transformer based dialog systems.
<clarity>  With the transformer based models dominating the seq2seq problems lately, a natural question is to understand the applicability of the notion of hierarchy in transformer based dialog systems.
 With the transformer based models dominating the seq2seq problems lately, the natural question to ask is the applicability of the notion of hierarchy in transformer based dialog systems.