Improving Longer-range Dialogue State Tracking

by   Ye Zhang, et al.

Dialogue state tracking (DST) is a pivotal component in task-oriented dialogue systems. While it is relatively easy for a DST model to capture belief states in short conversations, the task of DST becomes more challenging as the length of a dialogue increases due to the injection of more distracting contexts. In this paper, we aim to improve the overall performance of DST with a special focus on handling longer dialogues. We tackle this problem from three perspectives: 1) A model designed to enable hierarchical slot status prediction; 2) Balanced training procedure for generic and task-specific language understanding; 3) Data perturbation which enhances the model's ability in handling longer conversations. We conduct experiments on the MultiWOZ benchmark, and demonstrate the effectiveness of each component via a set of ablation tests, especially on longer conversations.



There are no comments yet.


page 1

page 2

page 3

page 4


Dialogue State Tracking with Multi-Level Fusion of Predicted Dialogue States and Conversations

Most recently proposed approaches in dialogue state tracking (DST) lever...

Improving Long Distance Slot Carryover in Spoken Dialogue Systems

Tracking the state of the conversation is a central component in task-or...

Alexa Conversations: An Extensible Data-driven Approach for Building Task-oriented Dialogue Systems

Traditional goal-oriented dialogue systems rely on various components su...

Point or Generate Dialogue State Tracker

Dialogue state tracking is a key part of a task-oriented dialogue system...

Slot Self-Attentive Dialogue State Tracking

An indispensable component in task-oriented dialogue systems is the dial...

MultiWOZ - A Large-Scale Multi-Domain Wizard-of-Oz Dataset for Task-Oriented Dialogue Modelling

Even though machine learning has become the major scene in dialogue rese...

Oh My Mistake!: Toward Realistic Dialogue State Tracking including Turnback Utterances

The primary purpose of dialogue state tracking (DST), a critical compone...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.