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Traditionally, offline datasets have been used to evaluate task-oriented dialogue (TOD) models. These datasets lack context awareness, making them suboptimal benchmarks for conversational systems. In contrast, user-agents, which are…

Computation and Language · Computer Science 2024-11-18 Taaha Kazi , Ruiliang Lyu , Sizhe Zhou , Dilek Hakkani-Tur , Gokhan Tur

Most task-oriented dialogue (TOD) benchmarks assume users that know exactly how to use the system by constraining the user behaviors within the system's capabilities via strict user goals, namely "user familiarity" bias. This data bias…

Computation and Language · Computer Science 2024-07-02 Takyoung Kim , Jamin Shin , Young-Ho Kim , Sanghwan Bae , Sungdong Kim

Task-oriented dialogue (TOD) systems enable users to achieve their goals through natural language interactions. Traditionally, these systems have relied on turn-level manually annotated metadata, such as dialogue states and policy…

Computation and Language · Computer Science 2024-11-05 Adib Mosharrof , A. B. Siddique

Task-oriented dialogue (ToD) systems are designed to help users achieve specific goals through natural language interaction. While recent advances in large language models (LLMs) have significantly improved linguistic fluency and contextual…

Computation and Language · Computer Science 2025-07-03 Shutong Feng , Hsien-chin Lin , Nurul Lubis , Carel van Niekerk , Michael Heck , Benjamin Ruppik , Renato Vukovic , Milica Gašić

Task-oriented dialogue (TOD) systems are experiencing a revolution driven by Large Language Models (LLMs), yet the evaluation methodologies for these systems remain insufficient for their growing sophistication. While traditional automatic…

Computation and Language · Computer Science 2025-07-17 Emre Can Acikgoz , Carl Guo , Suvodip Dey , Akul Datta , Takyoung Kim , Gokhan Tur , Dilek Hakkani-Tür

Evaluation is crucial in the development process of task-oriented dialogue systems. As an evaluation method, user simulation allows us to tackle issues such as scalability and cost-efficiency, making it a viable choice for large-scale…

Information Retrieval · Computer Science 2021-05-11 Weiwei Sun , Shuo Zhang , Krisztian Balog , Zhaochun Ren , Pengjie Ren , Zhumin Chen , Maarten de Rijke

Task-Oriented Dialogue (TOD) systems have become crucial components in interactive artificial intelligence applications. While recent advances have capitalized on pre-trained language models (PLMs), they exhibit limitations regarding…

Computation and Language · Computer Science 2023-12-11 Sungryull Sohn , Yiwei Lyu , Anthony Liu , Lajanugen Logeswaran , Dong-Ki Kim , Dongsub Shim , Honglak Lee

Task-oriented dialogue (ToD) benchmarks provide an important avenue to measure progress and develop better conversational agents. However, existing datasets for end-to-end ToD modeling are limited to a single language, hindering the…

Computation and Language · Computer Science 2021-06-08 Zhaojiang Lin , Andrea Madotto , Genta Indra Winata , Peng Xu , Feijun Jiang , Yuxiang Hu , Chen Shi , Pascale Fung

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…

Proactive task-oriented dialogue (TOD), such as outbound sales, demands a persuasive agent that actively probes the user's concerns and steers the conversation toward acceptance within a bounded number of turns. Yet post-trained LLMs are…

Artificial Intelligence · Computer Science 2026-05-22 Hongbin Zhang , Ning Gao , Yuqin Dai , Ruiyuan Wu , Jinpeng Wang , Rena Wei Gao , Bingdong Tan , Shuzheng Gao , Zongjie Li , Chaozheng Wang

Robust task-oriented spoken dialogue agents require exposure to the full diversity of how people interact through speech. Building spoken user simulators that address this requires large-scale spoken task-oriented dialogue (TOD) data…

Computation and Language · Computer Science 2026-03-18 Jonggeun Lee , Junseong Pyo , Jeongmin Park , Yohan Jo

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

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

Task-oriented dialogue (TOD) systems facilitate goal-driven interactions between users and machines. While recent advances in deep learning have improved the performance, TOD systems often struggle in low-resource scenarios with limited…

Computation and Language · Computer Science 2025-07-08 Quang-Vinh Nguyen , Quang-Chieu Nguyen , Hoang Pham , Khac-Hoai Nam Bui

Task-oriented dialogue (TOD) systems aim to efficiently handle task-oriented conversations, including information collection. How to utilize TOD accurately, efficiently and effectively for information collection has always been a critical…

Artificial Intelligence · Computer Science 2024-10-15 Ming Zhang , Caishuang Huang , Yilong Wu , Shichun Liu , Huiyuan Zheng , Yurui Dong , Yujiong Shen , Shihan Dou , Jun Zhao , Junjie Ye , Qi Zhang , Tao Gui , Xuanjing Huang

Programmable task-oriented dialogue (TOD) agents enable language models to follow structured dialogue policies, but their effectiveness hinges on accurate state tracking. We present PyTOD, an agent that generates executable code to track…

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

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

The emergence of instruction-tuned large language models (LLMs) has advanced the field of dialogue systems, enabling both realistic user simulations and robust multi-turn conversational agents. However, existing research often evaluates…

Computation and Language · Computer Science 2025-07-22 Chalamalasetti Kranti , Sherzod Hakimov , David Schlangen