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Task-oriented dialogue systems rely on predefined conversation schemes (dialogue flows) often represented as directed acyclic graphs. These flows can be manually designed or automatically generated from previously recorded conversations.…

Computation and Language · Computer Science 2024-11-18 Mehrnoosh Mirtaheri , Nikhil Varghese , Chandra Khatri , Amol Kelkar

Consistency Identification has obtained remarkable success on open-domain dialogue, which can be used for preventing inconsistent response generation. However, in contrast to the rapid development in open-domain dialogue, few efforts have…

Computation and Language · Computer Science 2021-09-24 Libo Qin , Tianbao Xie , Shijue Huang , Qiguang Chen , Xiao Xu , Wanxiang Che

In real-world task-oriented dialogue (TOD) settings, agents are required to strictly adhere to complex instructions while conducting multi-turn conversations with customers. These instructions are typically presented in natural language…

Computation and Language · Computer Science 2025-11-21 Sarik Ghazarian , Abhinav Gullapalli , Swair Shah , Anurag Beniwal , Nanyun Peng , Narayanan Sadagopan , Zhou Yu

Task-oriented dialog (TOD) systems facilitate users in accomplishing complex, multi-turn tasks through natural language. While instruction-tuned large language models (LLMs) have demonstrated strong performance on a range of single-turn NLP…

Computation and Language · Computer Science 2025-12-29 Moghis Fereidouni , Md Sajid Ahmed , Adib Mosharrof , A. B. Siddique

Target-Oriented Dialogue (TOD) remains a significant challenge in the LLM era, where strategic dialogue planning is crucial for directing conversations toward specific targets. However, existing dialogue planning methods generate dialogue…

Computation and Language · Computer Science 2025-08-12 Hanwen Du , Bo Peng , Xia Ning

Existing studies in dialogue system research mostly treat task-oriented dialogue and chit-chat as separate domains. Towards building a human-like assistant that can converse naturally and seamlessly with users, it is important to build a…

Computation and Language · Computer Science 2022-05-12 Zhiyu Chen , Bing Liu , Seungwhan Moon , Chinnadhurai Sankar , Paul Crook , William Yang Wang

Task-oriented dialog (TOD) systems typically manage structured knowledge (e.g. ontologies and databases) to guide the goal-oriented conversations. However, they fall short of handling dialog turns grounded on unstructured knowledge (e.g.…

Computation and Language · Computer Science 2021-06-03 Silin Gao , Ryuichi Takanobu , Wei Peng , Qun Liu , Minlie Huang

Building end-to-end task bots and maintaining their integration with new functionalities using minimal human efforts is a long-standing challenge in dialog research. Recently large language models (LLMs) have demonstrated exceptional…

Computation and Language · Computer Science 2023-05-17 Xiaoying Zhang , Baolin Peng , Kun Li , Jingyan Zhou , Helen Meng

Large language models (LLMs) are widely used as general-purpose knowledge sources, but they rely on parametric knowledge, limiting explainability and trustworthiness. In task-oriented dialogue (TOD) systems, this separation is explicit,…

Computation and Language · Computer Science 2025-12-22 Renato Vukovic , Carel van Niekerk , Michael Heck , Benjamin Ruppik , Hsien-Chin Lin , Shutong Feng , Nurul Lubis , Milica Gasic

The goal of building intelligent dialogue systems has largely been separately pursued under two motives: task-oriented dialogue (TOD) systems, and open-domain systems for chit-chat (CC). Although previous TOD dialogue systems work well in…

Computation and Language · Computer Science 2022-05-13 Changhong Yu , Chunhong Zhang , Qi Sun

Task-oriented Dialog (ToD) systems have to solve multiple subgoals to accomplish user goals, whereas feedback is often obtained only at the end of the dialog. In this work, we propose SUIT (SUbgoal-aware ITerative Training), an iterative…

Computation and Language · Computer Science 2024-11-26 Magdalena Kaiser , Patrick Ernst , György Szarvas

Task-oriented dialogue is difficult in part because it involves understanding user intent, collecting information from the user, executing API calls, and generating helpful and fluent responses. However, for complex tasks one must also…

Computation and Language · Computer Science 2023-06-05 Stefania Raimondo , Christopher Pal , Xiaotian Liu , David Vazquez , Hector Palacios

We propose a novel problem within end-to-end learning of task-oriented dialogs (TOD), in which the dialog system mimics a troubleshooting agent who helps a user by diagnosing their problem (e.g., car not starting). Such dialogs are grounded…

Computation and Language · Computer Science 2021-12-08 Dinesh Raghu , Shantanu Agarwal , Sachindra Joshi , Mausam

Recent research in dialogue systems and corpora has focused on two main categories: task-oriented (TOD) and open-domain (chit-chat) dialogues. TOD systems help users accomplish specific tasks, while open-domain systems aim to create…

Computation and Language · Computer Science 2024-04-30 Wen-Yu Chang , Yun-Nung Chen

Training task-oriented dialogue systems is both costly and time-consuming, due to the need for high-quality datasets encompassing diverse intents. Traditional methods depend on extensive human annotation, while recent advancements leverage…

Computation and Language · Computer Science 2025-01-22 Maya Medjad , Hugo Imbert , Bruno Yun , Raphaël Szymocha , Frédéric Armetta

Detecting user frustration in modern-day task-oriented dialog (TOD) systems is imperative for maintaining overall user satisfaction, engagement, and retention. However, most recent research is focused on sentiment and emotion detection in…

Task-oriented dialog systems empower users to accomplish their goals by facilitating intuitive and expressive natural language interactions. State-of-the-art approaches in task-oriented dialog systems formulate the problem as a conditional…

Computation and Language · Computer Science 2024-07-24 Adib Mosharrof , M. H. Maqbool , A. B. Siddique

Language models pre-trained on general text have achieved impressive results in diverse fields. Yet, the distinct linguistic characteristics of task-oriented dialogues (TOD) compared to general text limit the practical utility of existing…

Computation and Language · Computer Science 2024-04-02 Weihao Zeng , Dayuan Fu , Keqing He , Yejie Wang , Yukai Xu , Weiran Xu

Due to the significance and value in human-computer interaction and natural language processing, task-oriented dialog systems are attracting more and more attention in both academic and industrial communities. In this paper, we survey…

Computation and Language · Computer Science 2020-06-24 Zheng Zhang , Ryuichi Takanobu , Qi Zhu , Minlie Huang , Xiaoyan Zhu

This paper presents Graph-of-Thought (GoT), a new model for workflow automation that enhances the flexibility and efficiency of Large Language Models (LLMs) in complex task execution. GoT advances beyond traditional linear and tree-like…

Artificial Intelligence · Computer Science 2024-02-20 Ye Li