Semantic Refinement GRU-based Neural Language Generation for Spoken Dialogue Systems
This work addresses the problem of generating appropriate sentences in spoken dialogue systems, but it is incremental as it builds on existing RNN methods with a new gating approach.
The paper tackled natural language generation for spoken dialogue systems by introducing a gating mechanism before RNN computation, achieving better performance across four domains compared to previous generators.
Natural language generation (NLG) plays a critical role in spoken dialogue systems. This paper presents a new approach to NLG by using recurrent neural networks (RNN), in which a gating mechanism is applied before RNN computation. This allows the proposed model to generate appropriate sentences. The RNN-based generator can be learned from unaligned data by jointly training sentence planning and surface realization to produce natural language responses. The model was extensively evaluated on four different NLG domains. The results show that the proposed generator achieved better performance on all the NLG domains compared to previous generators.