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Task-oriented dialog systems need to know when a query falls outside their range of supported intents, but current text classification corpora only define label sets that cover every example. We introduce a new dataset that includes queries…

Out-of-scope intent detection is of practical importance in task-oriented dialogue systems. Since the distribution of outlier utterances is arbitrary and unknown in the training stage, existing methods commonly rely on strong assumptions on…

Computation and Language · Computer Science 2021-06-18 Li-Ming Zhan , Haowen Liang , Bo Liu , Lu Fan , Xiao-Ming Wu , Albert Y. S. Lam

Detecting out-of-scope user utterances is essential for task-oriented dialogues and intent classification. Current methodologies face difficulties with the unpredictable distribution of outliers and often rely on assumptions about data…

Computation and Language · Computer Science 2024-06-03 Hossam M. Zawbaa , Wael Rashwan , Sourav Dutta , Haytham Assem

The semantic understanding of natural dialogues composes of several parts. Some of them, like intent classification and entity detection, have a crucial role in deciding the next steps in handling user input. Handling each task as an…

Computation and Language · Computer Science 2021-09-08 Petr Lorenc

Detecting and identifying user intent from text, both written and spoken, plays an important role in modelling and understand dialogs. Existing research for intent discovery model it as a classification task with a predefined set of known…

Information Retrieval · Computer Science 2019-04-19 Nikhita Vedula , Nedim Lipka , Pranav Maneriker , Srinivasan Parthasarathy

Intent Detection is one of the tasks of the Natural Language Understanding (NLU) unit in task-oriented dialogue systems. Out of Scope (OOS) and Out of Domain (OOD) inputs may run these systems into a problem. On the other side, a labeled…

Computation and Language · Computer Science 2023-08-01 Masoud Akbari , Ali Mohades , M. Hassan Shirali-Shahreza

Traditional intent classification models are based on a pre-defined intent set and only recognize limited in-domain (IND) intent classes. But users may input out-of-domain (OOD) queries in a practical dialogue system. Such OOD queries can…

Computation and Language · Computer Science 2022-09-14 Yutao Mou , Keqing He , Yanan Wu , Pei Wang , Jingang Wang , Wei Wu , Yi Huang , Junlan Feng , Weiran Xu

Out-of-scope (OOS) intent detection is a critical challenge in task-oriented dialogue systems (TODS), as it ensures robustness to unseen and ambiguous queries. In this work, we propose a novel but simple modular framework that combines…

Computation and Language · Computer Science 2025-07-03 Álvaro Zaera , Diana Nicoleta Popa , Ivan Sekulic , Paolo Rosso

Detecting out-of-scope (OOS) user utterances remains a key challenge in task-oriented dialogue systems and, more broadly, in open-set intent recognition. Existing approaches often depend on strong distributional assumptions or auxiliary…

Computation and Language · Computer Science 2025-10-17 Wael Rashwan , Hossam M. Zawbaa , Sourav Dutta , Haytham Assem

Dialogue agents, which perform specific tasks, are part of the long-term goal of NLP researchers to build intelligent agents that communicate with humans in natural language. Such systems should adapt easily from one domain to another to…

Computation and Language · Computer Science 2024-04-24 Jesse Atuhurra , Hidetaka Kamigaito , Taro Watanabe , Eric Nichols

A key challenge of dialog systems research is to effectively and efficiently adapt to new domains. A scalable paradigm for adaptation necessitates the development of generalizable models that perform well in few-shot settings. In this…

Computation and Language · Computer Science 2021-05-26 Shikib Mehri , Mihail Eric

Representation learning is an essential problem in a wide range of applications and it is important for performing downstream tasks successfully. In this paper, we propose a new model that learns coupled representations of domains, intents,…

Computation and Language · Computer Science 2018-12-18 JIhwan Lee , Dongchan Kim , Ruhi Sarikaya , Young-Bum Kim

Real-life applications, heavily relying on machine learning, such as dialog systems, demand out-of-domain detection methods. Intent classification models should be equipped with a mechanism to distinguish seen intents from unseen ones so…

Computation and Language · Computer Science 2022-05-24 Alexander Podolskiy , Dmitry Lipin , Andrey Bout , Ekaterina Artemova , Irina Piontkovskaya

Intent recognition is a fundamental component in task-oriented dialogue systems (TODS). Determining user intents and detecting whether an intent is Out-of-Scope (OOS) is crucial for TODS to provide reliable responses. However, traditional…

Computation and Language · Computer Science 2025-07-31 Galo Castillo-López , Gaël de Chalendar , Nasredine Semmar

Out-of-domain (OOD) intent detection aims to examine whether the user's query falls outside the predefined domain of the system, which is crucial for the proper functioning of task-oriented dialogue (TOD) systems. Previous methods address…

Computation and Language · Computer Science 2024-03-05 Pei Wang , Keqing He , Yejie Wang , Xiaoshuai Song , Yutao Mou , Jingang Wang , Yunsen Xian , Xunliang Cai , Weiran Xu

Zero-shot intent classification is a vital and challenging task in dialogue systems, which aims to deal with numerous fast-emerging unacquainted intents without annotated training data. To obtain more satisfactory performance, the crucial…

Computation and Language · Computer Science 2022-06-07 Han Liu , Siyang Zhao , Xiaotong Zhang , Feng Zhang , Junjie Sun , Hong Yu , Xianchao Zhang

Detecting Out-of-Domain (OOD) or unknown intents from user queries is essential in a task-oriented dialog system. A key challenge of OOD detection is to learn discriminative semantic features. Traditional cross-entropy loss only focuses on…

Computation and Language · Computer Science 2021-06-01 Zhiyuan Zeng , Keqing He , Yuanmeng Yan , Zijun Liu , Yanan Wu , Hong Xu , Huixing Jiang , Weiran Xu

An accurate understanding of a user's query intent can help improve the performance of downstream tasks such as query scoping and ranking. In the e-commerce domain, recent work in query understanding focuses on the query to product-category…

Information Retrieval · Computer Science 2020-06-02 Ali Ahmadvand , Surya Kallumadi , Faizan Javed , Eugene Agichtein

User intent understanding is a crucial step in designing both conversational agents and search engines. Detecting or inferring user intent is challenging, since the user utterances or queries can be short, ambiguous, and contextually…

Information Retrieval · Computer Science 2020-07-09 Ali Ahmadvand

Dialogue intent classification aims to identify the underlying purpose or intent of a user's input in a conversation. Current intent classification systems encounter considerable challenges, primarily due to the vast number of possible…

Computation and Language · Computer Science 2024-12-23 Gyutae Park , Ingeol Baek , ByeongJeong Kim , Joongbo Shin , Hwanhee Lee
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