A Network-based End-to-End Trainable Task-oriented Dialogue System
  Teaching machines to accomplish tasks by conversing naturally with humans is challenging. Currently, developing task-oriented dialogue systems requires creating multiple components and typically this involves either a large amount of handcrafting, or acquiring costly labelled datasets to solve a statistical learning problem for each component. In this work we introduce a neural network-based text-in, text-out end-to-end trainable goal-oriented dialogue system along with a new way of collecting dialogue data based on a novel pipe-lined Wizard-of-Oz framework. This approach allows us to develop dialogue systems easily and without making too many assumptions about the task at hand. The results show that the model can converse with human subjects naturally whilst helping them to accomplish tasks in a restaurant search domain. 
Tsung-Hsien Wen, David Vandyke, Nikola Mrksic, Milica Gasic, Lina M.   Rojas-Barahona, Pei-Hao Su, Stefan Ultes, Steve Young
cs.CL cs.AI cs.NE stat.ML