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Existing pipelined task-oriented dialogue systems usually have difficulties adapting to unseen domains, whereas end-to-end systems are plagued by large-scale knowledge bases in practice. In this paper, we introduce a novel query-driven…

Computation and Language · Computer Science 2022-10-17 Xin Tian , Yingzhan Lin , Mengfei Song , Siqi Bao , Fan Wang , Huang He , Shuqi Sun , Hua Wu

Task-Oriented Dialogue (TOD) systems are drawing more and more attention in recent studies. Current methods focus on constructing pre-trained models or fine-tuning strategies while the evaluation of TOD is limited by a policy mismatch…

Computation and Language · Computer Science 2022-10-27 Qinyuan Cheng , Linyang Li , Guofeng Quan , Feng Gao , Xiaofeng Mou , Xipeng Qiu

Task-oriented dialogue (TOD) systems are required to identify key information from conversations for the completion of given tasks. Such information is conventionally specified in terms of intents and slots contained in task-specific…

Computation and Language · Computer Science 2022-01-25 Jeffrey Zhao , Raghav Gupta , Yuan Cao , Dian Yu , Mingqiu Wang , Harrison Lee , Abhinav Rastogi , Izhak Shafran , Yonghui Wu

Task-oriented dialog(TOD) aims to assist users in achieving specific goals through multi-turn conversation. Recently, good results have been obtained based on large pre-trained models. However, the labeled-data scarcity hinders the…

Computation and Language · Computer Science 2022-12-26 Zhitong Yang , Xing Ma , Anqi Liu , Zheyu Zhang

Task-Oriented Dialogue (TOD) systems are designed to carry out specific tasks by tracking dialogue states and generating appropriate responses to help users achieve defined goals. Recently, end-to-end dialogue models pre-trained based on…

Computation and Language · Computer Science 2023-06-01 Namo Bang , Jeehyun Lee , Myoung-Wan Koo

The goal of building intelligent dialogue systems has largely been separately pursued under two paradigms: task-oriented dialogue (TOD) systems, which perform goal-oriented functions, and open-domain dialogue (ODD) systems, which focus on…

Computation and Language · Computer Science 2022-04-06 Tom Young , Frank Xing , Vlad Pandelea , Jinjie Ni , Erik Cambria

This paper presents an ontology-aware pretrained language model (OPAL) for end-to-end task-oriented dialogue (TOD). Unlike chit-chat dialogue models, task-oriented dialogue models fulfill at least two task-specific modules: dialogue state…

Computation and Language · Computer Science 2022-09-13 Zhi Chen , Yuncong Liu , Lu Chen , Su Zhu , Mengyue Wu , Kai Yu

Pre-trained conversation models (PCMs) have achieved promising progress in recent years. However, existing PCMs for Task-oriented dialog (TOD) are insufficient for capturing the sequential nature of the TOD-related tasks, as well as for…

Computation and Language · Computer Science 2023-10-03 Lucen Zhong , Hengtong Lu , Caixia Yuan , Xiaojie Wang , Jiashen Sun , Ke Zeng , Guanglu Wan

Task-Oriented Dialogue (TOD) systems assist users in completing tasks through natural language interactions, often relying on a single-layered workflow structure for slot-filling in public tasks, such as hotel bookings. However, in…

Computation and Language · Computer Science 2025-09-09 Lingbo Mo , Shun Jiang , Akash Maharaj , Bernard Hishamunda , Yunyao Li

In spoken Task-Oriented Dialogue (TOD) systems, the choice of the semantic representation describing the users' requests is key to a smooth interaction. Indeed, the system uses this representation to reason over a database and its domain…

Artificial Intelligence · Computer Science 2024-06-21 Lucas Druart , Valentin Vielzeuf , Yannick Estève

Existing studies in conversational AI mostly treat task-oriented dialog (TOD) and question answering (QA) as separate tasks. Towards the goal of constructing a conversational agent that can complete user tasks and support information…

Computation and Language · Computer Science 2022-06-28 Miaoran Li , Baolin Peng , Jianfeng Gao , Zhu Zhang

Recent advances in task-oriented dialogue (TOD) systems, driven by large language models (LLMs) with extensive API and tool integration, have enabled conversational agents to coordinate interleaved goals, maintain long-horizon context, and…

Computation and Language · Computer Science 2026-02-02 Yifei Zhang , Hooshang Nayyeri , Rinat Khaziev , Emine Yilmaz , Gokhan Tur , Dilek Hakkani-Tür , Hari Thadakamalla

Current task-oriented dialog (TOD) systems mostly manage structured knowledge (e.g. databases and tables) to guide the goal-oriented conversations. However, they fall short of handling dialogs which also involve unstructured knowledge (e.g.…

Computation and Language · Computer Science 2022-02-02 Silin Gao , Ryuichi Takanobu , Antoine Bosselut , Minlie Huang

Previous dialogue summarization datasets mainly focus on open-domain chitchat dialogues, while summarization datasets for the broadly used task-oriented dialogue haven't been explored yet. Automatically summarizing such task-oriented…

Computation and Language · Computer Science 2021-10-26 Lulu Zhao , Fujia Zheng , Keqing He , Weihao Zeng , Yuejie Lei , Huixing Jiang , Wei Wu , Weiran Xu , Jun Guo , Fanyu Meng

Task-oriented dialogue (TOD) systems are mainly based on the slot-filling-based TOD (SF-TOD) framework, in which dialogues are broken down into smaller, controllable units (i.e., slots) to fulfill a specific task. A series of approaches…

Nowadays, open-domain dialogue models can generate acceptable responses according to the historical context based on the large-scale pre-trained language models. However, they generally concatenate the dialogue history directly as the model…

Computation and Language · Computer Science 2021-06-07 Zekang Li , Jinchao Zhang , Zhengcong Fei , Yang Feng , Jie Zhou

In Task-Oriented Dialogue (TOD) systems, correctly updating the system's understanding of the user's needs is key to a smooth interaction. Traditionally TOD systems are composed of several modules that interact with one another. While each…

Computation and Language · Computer Science 2023-11-21 Lucas Druart , Léo Jacqmin , Benoît Favre , Lina Maria Rojas-Barahona , Valentin Vielzeuf

The underlying difference of linguistic patterns between general text and task-oriented dialogue makes existing pre-trained language models less useful in practice. In this work, we unify nine human-human and multi-turn task-oriented…

Computation and Language · Computer Science 2020-10-02 Chien-Sheng Wu , Steven Hoi , Richard Socher , Caiming Xiong

Task-oriented dialogue (TOD) systems have been widely used by mobile phone intelligent assistants to accomplish tasks such as calendar scheduling or hotel reservation. Current TOD systems usually focus on multi-turn text/speech interaction,…

Computation and Language · Computer Science 2024-03-04 Liangtai Sun , Xingyu Chen , Lu Chen , Tianle Dai , Zichen Zhu , Kai Yu

In recent research on dialogue systems and corpora, there has been a significant focus on two distinct categories: task-oriented (TOD) and open-domain (chit-chat) dialogues. TOD systems aim to satisfy specific user goals, such as finding a…

Computation and Language · Computer Science 2023-08-29 Wen-Yu Chang , Yun-Nung Chen