Regularized Neural User Model for Goal-Oriented Spoken Dialogue Systems
Authors: Manex Serras Saenz María Inés Torres
Date: 01.01.2019
Abstract
User simulation is widely used to generate artificial dialogues in order to train statistical spoken dialogue systems and perform evaluations. This paper presents a neural network approach for user modeling that exploits an encoder-decoder bidirectional architecture with a regularization layer for each dialogue act. In order to minimize the impact of data sparsity, the dialogue act space is compressed according to the user goal. Experiments on the Dialogue State Tracking Challenge 2 (DSTC2) dataset provide significant results at dialogue act and slot level predictions, outperforming previous neural user modeling approaches in terms of F1 score.
BIB_text
title = {Regularized Neural User Model for Goal-Oriented Spoken Dialogue Systems},
pages = {235-245},
keywds = {
User simulation, Dialogue systems, Deep learning, Regularization
}
abstract = {
User simulation is widely used to generate artificial dialogues in order to train statistical spoken dialogue systems and perform evaluations. This paper presents a neural network approach for user modeling that exploits an encoder-decoder bidirectional architecture with a regularization layer for each dialogue act. In order to minimize the impact of data sparsity, the dialogue act space is compressed according to the user goal. Experiments on the Dialogue State Tracking Challenge 2 (DSTC2) dataset provide significant results at dialogue act and slot level predictions, outperforming previous neural user modeling approaches in terms of F1 score.
}
date = {2019-01-01},
}
