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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

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

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

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

Much literature has shown that prompt-based learning is an efficient method to make use of the large pre-trained language model. Recent works also exhibit the possibility of steering a chatbot's output by plugging in an appropriate prompt.…

Computation and Language · Computer Science 2022-10-14 Hsuan Su , Pohan Chi , Shih-Cheng Huang , Chung Ho Lam , Saurav Sahay , Shang-Tse Chen , Hung-yi Lee

Carefully-designed schemas describing how to collect and annotate dialog corpora are a prerequisite towards building task-oriented dialog systems. In practical applications, manually designing schemas can be error-prone, laborious,…

Computation and Language · Computer Science 2022-05-11 Dian Yu , Mingqiu Wang , Yuan Cao , Izhak Shafran , Laurent El Shafey , Hagen Soltau

Task-oriented dialogue (TOD) system is designed to accomplish user-defined tasks through dialogues. The TOD system has progressed towards end-to-end modeling by leveraging pre-trained large language models. Fine-tuning the pre-trained…

Computation and Language · Computer Science 2024-11-11 Dharmendra Prajapat , Durga Toshniwal

Dialogue State Tracking (DST) is of paramount importance in ensuring accurate tracking of user goals and system actions within task-oriented dialogue systems. The emergence of large language models (LLMs) such as GPT3 and ChatGPT has…

Computation and Language · Computer Science 2023-10-24 Yujie Feng , Zexin Lu , Bo Liu , Liming Zhan , Xiao-Ming Wu

Existing end-to-end modeling methods for modular task-oriented dialog systems are typically tailored to specific datasets, making it challenging to adapt to new dialog scenarios. In this work, we propose ESAinsTOD, a unified End-to-end…

Computation and Language · Computer Science 2026-03-11 Dechuan Teng , Chunlin Lu , Libo Qin , Wanxiang Che

Virtual assistants such as Google Assistant, Alexa and Siri provide a conversational interface to a large number of services and APIs spanning multiple domains. Such systems need to support an ever-increasing number of services with…

Computation and Language · Computer Science 2020-01-30 Abhinav Rastogi , Xiaoxue Zang , Srinivas Sunkara , Raghav Gupta , Pranav Khaitan

Task oriented dialogue systems (TOD) complete particular tasks based on user preferences across natural language interactions. Considering the impressive performance of large language models (LLMs) in natural language processing (NLP)…

Computation and Language · Computer Science 2025-10-08 Arezoo Saedi , Afsaneh Fatemi , Mohammad Ali Nematbakhsh , Sophie Rosset , Anne Vilnat

Task-oriented dialogue systems have been plagued by the difficulties of obtaining large-scale and high-quality annotated conversations. Furthermore, most of the publicly available datasets only include written conversations, which are…

Computation and Language · Computer Science 2021-12-24 Xin Tian , Xinxian Huang , Dongfeng He , Yingzhan Lin , Siqi Bao , Huang He , Liankai Huang , Qiang Ju , Xiyuan Zhang , Jian Xie , Shuqi Sun , Fan Wang , Hua Wu , Haifeng Wang

The schema-guided paradigm overcomes scalability issues inherent in building task-oriented dialogue (TOD) agents with static ontologies. Instead of operating on dialogue context alone, agents have access to hierarchical schemas containing…

Computation and Language · Computer Science 2023-03-20 A. Coca , B. H. Tseng , W. Lin , B. Byrne

Large language models (LLMs) can be used as accessible and intelligent chatbots by constructing natural language queries and directly inputting the prompt into the large language model. However, different prompt' constructions often lead to…

Computation and Language · Computer Science 2023-12-14 Jinta Weng , Jiarui Zhang , Yue Hu , Daidong Fa , Xiaofeng Xuand , Heyan Huang

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

Task-oriented dialogue systems often employ a Dialogue State Tracker (DST) to successfully complete conversations. Recent state-of-the-art DST implementations rely on schemata of diverse services to improve model robustness and handle…

Computation and Language · Computer Science 2022-07-05 Eleftherios Kapelonis , Efthymios Georgiou , Alexandros Potamianos

Pre-trained language models have been recently shown to benefit task-oriented dialogue (TOD) systems. Despite their success, existing methods often formulate this task as a cascaded generation problem which can lead to error accumulation…

Computation and Language · Computer Science 2022-03-02 Yixuan Su , Lei Shu , Elman Mansimov , Arshit Gupta , Deng Cai , Yi-An Lai , Yi Zhang

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…

Task-oriented grasping (TOG) refers to the problem of predicting grasps on an object that enable subsequent manipulation tasks. To model the complex relationships between objects, tasks, and grasps, existing methods incorporate semantic…

Robotics · Computer Science 2023-09-21 Chao Tang , Dehao Huang , Wenqi Ge , Weiyu Liu , Hong Zhang

Task-oriented conversational systems often use dialogue state tracking to represent the user's intentions, which involves filling in values of pre-defined slots. Many approaches have been proposed, often using task-specific architectures…

Computation and Language · Computer Science 2021-09-17 Chia-Hsuan Lee , Hao Cheng , Mari Ostendorf