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In recent years, the development of large pretrained language models, such as BERT and GPT, significantly improved information extraction systems on various tasks, including relation classification. State-of-the-art systems are highly…

Computation and Language · Computer Science 2023-08-07 Lars Klöser , Andre Büsgen , Philipp Kohl , Bodo Kraft , Albert Zündorf

This paper introduces a novel model for semantic role labeling that makes use of neural sequence modeling techniques. Our approach is motivated by the observation that complex syntactic structures and related phenomena, such as nested…

Computation and Language · Computer Science 2016-07-19 Michael Roth , Mirella Lapata

Modeling semantic relevance has always been a challenging and critical task in natural language processing. In recent years, with the emergence of massive amounts of annotated data, it has become feasible to train complex models, such as…

Computation and Language · Computer Science 2025-05-13 Min Li , Chun Yuan

We tackle the problem of novel class discovery, which aims to learn novel classes without supervision based on labeled data from known classes. A key challenge lies in transferring the knowledge in the known-class data to the learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Peiyan Gu , Chuyu Zhang , Ruijie Xu , Xuming He

New intent discovery aims to uncover novel intent categories from user utterances to expand the set of supported intent classes. It is a critical task for the development and service expansion of a practical dialogue system. Despite its…

Computation and Language · Computer Science 2025-04-08 Yuwei Zhang , Haode Zhang , Li-Ming Zhan , Albert Y. S. Lam , Xiao-Ming Wu

In novel class discovery (NCD), we are given labeled data from seen classes and unlabeled data from unseen classes, and we train clustering models for the unseen classes. However, the implicit assumptions behind NCD are still unclear. In…

Machine Learning · Computer Science 2022-09-09 Haoang Chi , Feng Liu , Bo Han , Wenjing Yang , Long Lan , Tongliang Liu , Gang Niu , Mingyuan Zhou , Masashi Sugiyama

We tackle the novel class discovery problem, aiming to discover novel classes in unlabeled data based on labeled data from seen classes. The main challenge is to transfer knowledge contained in the seen classes to unseen ones. Previous…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Chuyu Zhang , Chuanyang Hu , Ruijie Xu , Zhitong Gao , Qian He , Xuming He

Image semantic segmentation is more and more being of interest for computer vision and machine learning researchers. Many applications on the rise need accurate and efficient segmentation mechanisms: autonomous driving, indoor navigation,…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Alberto Garcia-Garcia , Sergio Orts-Escolano , Sergiu Oprea , Victor Villena-Martinez , Jose Garcia-Rodriguez

In self-supervised learning, a system is tasked with achieving a surrogate objective by defining alternative targets on a set of unlabeled data. The aim is to build useful representations that can be used in downstream tasks, without costly…

Machine Learning · Computer Science 2020-11-11 Massimiliano Patacchiola , Amos Storkey

Open-set domain adaptation (OSDA) considers that the target domain contains samples from novel categories unobserved in external source domain. Unfortunately, existing OSDA methods always ignore the demand for the information of unseen…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Taotao Jing , Hongfu Liu , Zhengming Ding

Sentence level novelty detection aims at reducing redundant sentences from a sentence list. In the task, sentences appearing later in the list with no new meanings are eliminated. Aiming at a better accuracy for detecting redundancy, this…

Information Retrieval · Computer Science 2007-05-23 Le Zhao , Min Zhang , Shaoping Ma

Novelty detection is the unsupervised problem of identifying anomalies in test data which significantly differ from the training set. Novelty detection is one of the classic challenges in Machine Learning and a core component of several…

Machine Learning · Computer Science 2019-03-06 Rémi Domingues

Deep learning models heavily rely on large scale annotated datasets for training. Unfortunately, datasets cannot capture the infinite variability of the real world, thus neural networks are inherently limited by the restricted visual and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Massimiliano Mancini

When evaluated in dynamic, open-world situations, neural networks struggle to detect unseen classes. This issue complicates the deployment of continual learners in realistic environments where agents are not explicitly informed when novel…

Machine Learning · Computer Science 2023-09-07 Abe Ejilemele , Jorge Mendez-Mendez

Recent efforts in deploying Deep Neural Networks for object detection in real world applications, such as autonomous driving, assume that all relevant object classes have been observed during training. Quantifying the performance of these…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Yimeng Li , Jana Kosecka

Novel Class Discovery (NCD) involves identifying new categories within unlabeled data by utilizing knowledge acquired from previously established categories. However, existing NCD methods often struggle to maintain a balance between the…

Machine Learning · Computer Science 2024-07-26 Yue Hou , Xueyuan Chen , He Zhu , Romei Liu , Bowen Shi , Jiaheng Liu , Junran Wu , Ke Xu

Novel Class Discovery (NCD) is a growing field where we are given during training a labeled set of known classes and an unlabeled set of different classes that must be discovered. In recent years, many methods have been proposed to address…

In an era of exponential scientific growth, identifying novel research ideas is crucial and challenging in academia. Despite potential, the lack of an appropriate benchmark dataset hinders the research of novelty detection. More…

Computation and Language · Computer Science 2025-06-02 Yan Liu , Zonglin Yang , Soujanya Poria , Thanh-Son Nguyen , Erik Cambria

Novel class discovery (NCD) for semantic segmentation is the task of learning a model that can segment unlabelled (novel) classes using only the supervision from labelled (base) classes. This problem has recently been pioneered for 2D image…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Luigi Riz , Cristiano Saltori , Elisa Ricci , Fabio Poiesi

One important characteristic of modern fault classification systems is the ability to flag the system when faced with previously unseen fault types. This work considers the unknown fault detection capabilities of deep neural network-based…

Machine Learning · Computer Science 2024-03-27 Nurettin Sergin , Jiayu Huang , Tzyy-Shuh Chang , Hao Yan