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For most intelligent assistant systems, it is essential to have a mechanism that detects out-of-domain (OOD) utterances automatically to handle noisy input properly. One typical approach would be introducing a separate class that contains…

Computation and Language · Computer Science 2020-03-30 Yueqi Feng , Jiali Lin

Conversational agents are usually designed for closed-world environments. Unfortunately, users can behave unexpectedly. Based on the open-world environment, we often encounter the situation that the training and test data are sampled from…

Computation and Language · Computer Science 2022-04-25 Petr Lorenc , Tommaso Gargiani , Jan Pichl , Jakub Konrád , Petr Marek , Ondřej Kobza , Jan Šedivý

Natural Language Understanding (NLU) is a vital component of dialogue systems, and its ability to detect Out-of-Domain (OOD) inputs is critical in practical applications, since the acceptance of the OOD input that is unsupported by the…

Computation and Language · Computer Science 2022-05-25 Yinhe Zheng , Guanyi Chen , Minlie Huang

Out-of-Domain (OOD) intent detection is vital for practical dialogue systems, and it usually requires considering multi-turn dialogue contexts. However, most previous OOD intent detection approaches are limited to single dialogue turns. In…

Computation and Language · Computer Science 2024-02-26 Hao Lang , Yinhe Zheng , Binyuan Hui , Fei Huang , Yongbin Li

To ensure satisfactory user experience, dialog systems must be able to determine whether an input sentence is in-domain (ID) or out-of-domain (OOD). We assume that only ID sentences are available as training data because collecting enough…

Computation and Language · Computer Science 2018-08-01 Seonghan Ryu , Seokhwan Kim , Junhwi Choi , Hwanjo Yu , Gary Geunbae Lee

In many real-world settings, machine learning models need to identify user inputs that are out-of-domain (OOD) so as to avoid performing wrong actions. This work focuses on a challenging case of OOD detection, where no labels for in-domain…

Computation and Language · Computer Science 2022-03-23 Di Jin , Shuyang Gao , Seokhwan Kim , Yang Liu , Dilek Hakkani-Tur

In domain classification for spoken dialog systems, correct detection of out-of-domain (OOD) utterances is crucial because it reduces confusion and unnecessary interaction costs between users and the systems. Previous work usually utilizes…

Computation and Language · Computer Science 2018-07-03 Joo-Kyung Kim , Young-Bum Kim

Detecting an Out-of-Domain (OOD) utterance is crucial for a robust dialog system. Most dialog systems are trained on a pool of annotated OOD data to achieve this goal. However, collecting the annotated OOD data for a given domain is an…

Computation and Language · Computer Science 2021-04-07 Petr Marek , Vishal Ishwar Naik , Vincent Auvray , Anuj Goyal

Neural network-based dialog models often lack robustness to anomalous, out-of-domain (OOD) user input which leads to unexpected dialog behavior and thus considerably limits such models' usage in mission-critical production environments. The…

Computation and Language · Computer Science 2018-11-30 Igor Shalyminov , Sungjin Lee

Out-of-domain (OOD) input detection is vital in a task-oriented dialogue system since the acceptance of unsupported inputs could lead to an incorrect response of the system. This paper proposes OutFlip, a method to generate out-of-domain…

Computation and Language · Computer Science 2021-05-13 DongHyun Choi , Myeong Cheol Shin , EungGyun Kim , Dong Ryeol Shin

The task of identifying out-of-domain (OOD) input examples directly at test-time has seen renewed interest recently due to increased real world deployment of models. In this work, we focus on OOD detection for natural language sentence…

Computation and Language · Computer Science 2020-01-01 Varun Gangal , Abhinav Arora , Arash Einolghozati , Sonal Gupta

Practical dialogue systems require robust methods of detecting out-of-scope (OOS) utterances to avoid conversational breakdowns and related failure modes. Directly training a model with labeled OOS examples yields reasonable performance,…

Computation and Language · Computer Science 2021-09-08 Derek Chen , Zhou Yu

Users of spoken dialogue systems (SDS) expect high quality interactions across a wide range of diverse topics. However, the implementation of SDS capable of responding to every conceivable user utterance in an informative way is a…

Computation and Language · Computer Science 2021-01-28 A. Augustin , A. Papangelis , M. Kotti , P. Vougiouklis , J. Hare , N. Braunschweiler

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

Out-of-distribution (OOD) detection in multimodal contexts is essential for identifying deviations in combined inputs from different modalities, particularly in applications like open-domain dialogue systems or real-life dialogue…

Computation and Language · Computer Science 2024-11-01 Rena Gao , Xuetong Wu , Siwen Luo , Caren Han , Feng Liu

Out-of-distribution (OOD) detection is a critical task for reliable predictions over text. Fine-tuning with pre-trained language models has been a de facto procedure to derive OOD detectors with respect to in-distribution (ID) data. Despite…

Computation and Language · Computer Science 2023-05-23 Rheeya Uppaal , Junjie Hu , Yixuan Li

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

Out-of-Domain (OOD) detection is a key component in a task-oriented dialog system, which aims to identify whether a query falls outside the predefined supported intent set. Previous softmax-based detection algorithms are proved to be…

Computation and Language · Computer Science 2022-09-15 Yanan Wu , Zhiyuan Zeng , Keqing He , Yutao Mou , Pei Wang , Weiran Xu

Out-of-distribution (OOD) detection plays a crucial role in ensuring the safety and reliability of deep neural networks in various applications. While there has been a growing focus on OOD detection in visual data, the field of textual OOD…

Computation and Language · Computer Science 2024-04-10 Li-Ming Zhan , Bo Liu , Xiao-Ming Wu

Out-of-distribution (OOD) detection is concerned with identifying data points that do not belong to the same distribution as the model's training data. For the safe deployment of predictive models in a real-world environment, it is critical…

Sound · Computer Science 2023-02-28 Zaharah Bukhsh , Aaqib Saeed
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