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Recent efforts in Dialogue State Tracking (DST) for task-oriented dialogues have progressed toward open-vocabulary or generation-based approaches where the models can generate slot value candidates from the dialogue history itself. These…

Computation and Language · Computer Science 2020-02-25 Hung Le , Richard Socher , Steven C. H. Hoi

Dialogue state tracking (DST) plays an essential role in task-oriented dialogue systems. However, user's input may contain implicit information, posing significant challenges for DST tasks. Additionally, DST data includes complex…

Computation and Language · Computer Science 2024-12-05 Zihao Yi , Zhe Xu , Ying Shen

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

While communicating with a user, a task-oriented dialogue system has to track the user's needs at each turn according to the conversation history. This process called dialogue state tracking (DST) is crucial because it directly informs the…

Computation and Language · Computer Science 2022-08-01 Léo Jacqmin , Lina M. Rojas-Barahona , Benoit Favre

In task-oriented multi-turn dialogue systems, dialogue state refers to a compact representation of the user goal in the context of dialogue history. Dialogue state tracking (DST) is to estimate the dialogue state at each turn. Due to the…

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

Existing approaches to Dialogue State Tracking (DST) rely on turn level dialogue state annotations, which are expensive to acquire in large scale. In call centers, for tasks like managing bookings or subscriptions, the user goal can be…

Computation and Language · Computer Science 2021-01-29 Shuailong Liang , Lahari Poddar , Gyuri Szarvas

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

Dialogue State Tracking (DST), a crucial component of task-oriented dialogue (ToD) systems, keeps track of all important information pertaining to dialogue history: filling slots with the most probable values throughout the conversation.…

Computation and Language · Computer Science 2023-02-28 Han Zhou , Ignacio Iacobacci , Pasquale Minervini

We consider a new perspective on dialog state tracking (DST), the task of estimating a user's goal through the course of a dialog. By formulating DST as a semantic parsing task over hierarchical representations, we can incorporate semantic…

Dialogue state tracking (DST) is an essential sub-task for task-oriented dialogue systems. Recent work has focused on deep neural models for DST. However, the neural models require a large dataset for training. Furthermore, applying them to…

Computation and Language · Computer Science 2022-10-06 Hyunmin Jeon , Gary Geunbae Lee

In dialogue state tracking (DST), in-context learning comprises a retriever that selects labeled dialogues as in-context examples and a DST model that uses these examples to infer the dialogue state of the query dialogue. Existing methods…

Computation and Language · Computer Science 2025-06-04 Haesung Pyun , Yoonah Park , Yohan Jo

Existing dialogue state tracking (DST) models require plenty of labeled data. However, collecting high-quality labels is costly, especially when the number of domains increases. In this paper, we address a practical DST problem that is…

Computation and Language · Computer Science 2020-10-28 Chien-Sheng Wu , Steven Hoi , Caiming Xiong

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

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

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

Tracking dialogue states to better interpret user goals and feed downstream policy learning is a bottleneck in dialogue management. Common practice has been to treat it as a problem of classifying dialogue content into a set of pre-defined…

Artificial Intelligence · Computer Science 2020-06-04 Lizi Liao , Yunshan Ma , Wenqiang Lei , Tat-Seng Chua

We tackle the Dialogue Belief State Tracking(DST) problem of task-oriented conversational systems. Recent approaches to this problem leveraging Transformer-based models have yielded great results. However, training these models is…

Computation and Language · Computer Science 2022-04-19 Debjoy Saha , Bishal Santra , Pawan Goyal

In a task-oriented dialog system, the goal of dialog state tracking (DST) is to monitor the state of the conversation from the dialog history. Recently, many deep learning based methods have been proposed for the task. Despite their…

Computation and Language · Computer Science 2020-02-11 Tuan Manh Lai , Quan Hung Tran , Trung Bui , Daisuke Kihara

Task-oriented dialogue systems aim to help users achieve their goals in specific domains. Recent neural dialogue systems use the entire dialogue history for abundant contextual information accumulated over multiple conversational turns.…

Computation and Language · Computer Science 2021-03-12 Hyunmin Jeon , Gary Geunbae Lee

Prior work has demonstrated that data augmentation is useful for improving dialogue state tracking. However, there are many types of user utterances, while the prior method only considered the simplest one for augmentation, raising the…

Computation and Language · Computer Science 2022-07-27 Chun-Mao Lai , Ming-Hao Hsu , Chao-Wei Huang , Yun-Nung Chen