Improving Semantic Parsing for Task Oriented Dialog

Conversational AI Workshop at NeurIPS 2018

Abstract

Semantic parsing using hierarchical representations has recently been proposed for task oriented dialog with promising results. In this paper, we present three different improvements to the model: contextualized embeddings, ensembling, and pairwise re-ranking based on a language model. We taxonomize the errors possible for the hierarchical representation, such as wrong top intent, missing spans or split spans, and show that the three approaches correct different kinds of errors. The best model combines the three techniques and gives 6.4% better exact match accuracy than the state-of-the-art, with an error reduction of 33%, resulting in a new state-of-the-art result on the Task Oriented Parsing (TOP) dataset.

Latest Publications

Log-structured Protocols in Delos

Mahesh Balakrishnan, Mahesh Balakrishnan, Mihir Dharamshi, Jason Flinn, David Geraghty, Santosh Ghosh, Filip Gruszczynski, Ahmed Jafri, Jun Li, Jingming Liu, Suyog Mapara, Rajeev Nagar, Ivailo Nedelchev, Francois Richard, Chen Shen, Yee Jiun Song, Rounak Tibrewal, Vidhya Venkat, Ahmed Yossef, Ali Zaveri

SOSP