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Dialog State Tracking (DST), an integral part of modern dialog systems, aims to track user preferences and constraints (slots) in task-oriented dialogs. In real-world settings with constantly changing services, DST systems must generalize…

Computation and Language · Computer Science 2021-01-22 Shuyang Li , Jin Cao , Mukund Sridhar , Henghui Zhu , Shang-Wen Li , Wael Hamza , Julian McAuley

The goal of dialogue state tracking (DST) is to predict the current dialogue state given all previous dialogue contexts. Existing approaches generally predict the dialogue state at every turn from scratch. However, the overwhelming majority…

Computation and Language · Computer Science 2021-07-28 Jinyu Guo , Kai Shuang , Jijie Li , Zihan Wang

Recent works on end-to-end trainable neural network based approaches have demonstrated state-of-the-art results on dialogue state tracking. The best performing approaches estimate a probability distribution over all possible slot values.…

Computation and Language · Computer Science 2019-07-02 Rahul Goel , Shachi Paul , Dilek Hakkani-Tür

In dialogue systems, a dialogue state tracker aims to accurately find a compact representation of the current dialogue status, based on the entire dialogue history. While previous approaches often define dialogue states as a combination of…

Computation and Language · Computer Science 2020-09-23 Zhi Chen , Lu Chen , Zihan Xu , Yanbin Zhao , Su Zhu , Kai Yu

In task-oriented dialogue systems, Dialogue State Tracking (DST) aims to extract users' intentions from the dialogue history. Currently, most existing approaches suffer from error propagation and are unable to dynamically select relevant…

Computation and Language · Computer Science 2023-03-08 Jing Xu , Dandan Song , Chong Liu , Siu Cheung Hui , Fei Li , Qiang Ju , Xiaonan He , Jian Xie

A Dialogue State Tracker (DST) is a key component in a dialogue system aiming at estimating the beliefs of possible user goals at each dialogue turn. Most of the current DST trackers make use of recurrent neural networks and are based on…

Computation and Language · Computer Science 2019-10-23 Vevake Balaraman , Bernardo Magnini

This paper presents a novel approach for multi-task learning of language understanding (LU) and dialogue state tracking (DST) in task-oriented dialogue systems. Multi-task training enables the sharing of the neural network layers…

Computation and Language · Computer Science 2018-11-14 Abhinav Rastogi , Raghav Gupta , Dilek Hakkani-Tur

In task-oriented dialogue systems the dialogue state tracker (DST) component is responsible for predicting the state of the dialogue based on the dialogue history. Current DST approaches rely on a predefined domain ontology, a fact that…

Computation and Language · Computer Science 2020-01-22 Vevake Balaraman , Bernardo Magnini

This paper introduces a novel approach to Dialogue State Tracking (DST) that leverages Large Language Models (LLMs) to generate natural language descriptions of dialogue states, moving beyond traditional slot-value representations.…

Computation and Language · Computer Science 2025-03-13 Rafael Carranza , Mateo Alejandro Rojas

The ability to accurately track what happens during a conversation is essential for the performance of a dialogue system. Current state-of-the-art multi-domain dialogue state trackers achieve just over 55% accuracy on the current go-to…

Computation and Language · Computer Science 2020-11-24 Carel van Niekerk , Michael Heck , Christian Geishauser , Hsien-Chin Lin , Nurul Lubis , Marco Moresi , Milica Gašić

Designed for tracking user goals in dialogues, a dialogue state tracker is an essential component in a dialogue system. However, the research of dialogue state tracking has largely been limited to unimodality, in which slots and slot values…

Artificial Intelligence · Computer Science 2022-06-17 Hung Le , Nancy F. Chen , Steven C. H. Hoi

One of the core components of modern spoken dialogue systems is the belief tracker, which estimates the user's goal at every step of the dialogue. However, most current approaches have difficulty scaling to larger, more complex dialogue…

Computation and Language · Computer Science 2017-04-24 Nikola Mrkšić , Diarmuid Ó Séaghdha , Tsung-Hsien Wen , Blaise Thomson , Steve Young

Dialogue state tracking (DST) aims to predict the current dialogue state given the dialogue history. Existing methods generally exploit the utterances of all dialogue turns to assign value for each slot. This could lead to suboptimal…

Computation and Language · Computer Science 2022-05-06 Yifan Wang , Jing Zhao , Junwei Bao , Chaoqun Duan , Youzheng Wu , Xiaodong He

This paper describes our approach to DSTC 9 Track 2: Cross-lingual Multi-domain Dialog State Tracking, the task goal is to build a Cross-lingual dialog state tracker with a training set in rich resource language and a testing set in low…

Computation and Language · Computer Science 2021-07-01 Min Mao , Jiasheng Liu , Jingyao Zhou , Haipang Wu

Dialogue State Tracking (DST), which is the process of inferring user goals by estimating belief states given the dialogue history, plays a critical role in task-oriented dialogue systems. A coreference phenomenon observed in multi-turn…

Computation and Language · Computer Science 2021-06-17 Ting Han , Chongxuan Huang , Wei Peng

Dialogue state tracking (DST) aims to convert the dialogue history into dialogue states which consist of slot-value pairs. As condensed structural information memorizing all history information, the dialogue state in the last turn is…

Computation and Language · Computer Science 2023-06-21 Haoning Zhang , Junwei Bao , Haipeng Sun , Youzheng Wu , Wenye Li , Shuguang Cui , Xiaodong He

Robust state tracking for task-oriented dialogue systems currently remains restricted to a few popular languages. This paper shows that given a large-scale dialogue data set in one language, we can automatically produce an effective…

Computation and Language · Computer Science 2023-02-21 Mehrad Moradshahi , Victoria Tsai , Giovanni Campagna , Monica S. Lam

Dialogue state tracking (DST) is a component of the task-oriented dialogue system. It is responsible for extracting and managing slot values according to dialogue utterances, where each slot represents an essential part of the information…

Computation and Language · Computer Science 2022-04-26 Zhoujian Sun , Zhengxing Huang , Nai Ding

Dialogue state tracking is a key part of a task-oriented dialogue system, which estimates the user's goal at each turn of the dialogue. In this paper, we propose the Point-Or-Generate Dialogue State Tracker (POGD). POGD solves the dialogue…

Computation and Language · Computer Science 2020-08-11 Song Xiaohui , Hu Songlin

Tracking the state of the conversation is a central component in task-oriented spoken dialogue systems. One such approach for tracking the dialogue state is slot carryover, where a model makes a binary decision if a slot from the context is…

Computation and Language · Computer Science 2019-06-05 Tongfei Chen , Chetan Naik , Hua He , Pushpendre Rastogi , Lambert Mathias