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Generalized Category Discovery (GCD) faces the challenge of categorizing unlabeled data containing both known and novel classes, given only labels for known classes. Previous studies often treat each class independently, neglecting the…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Fang Zhou , Zhiqiang Chen , Martin Pavlovski , Yizhong Zhang

Few-shot Continual Relations Extraction (FCRE) is an emerging and dynamic area of study where models can sequentially integrate knowledge from new relations with limited labeled data while circumventing catastrophic forgetting and…

计算与语言 · 计算机科学 2024-10-02 Quyen Tran , Nguyen Xuan Thanh , Nguyen Hoang Anh , Nam Le Hai , Trung Le , Linh Van Ngo , Thien Huu Nguyen

If an unknown example that is not seen during training appears, most recognition systems usually produce overgeneralized results and determine that the example belongs to one of the known classes. To address this problem,…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Jaeyeon Jang , Chang Ouk Kim

Towards real-world information extraction scenario, research of relation extraction is advancing to document-level relation extraction(DocRE). Existing approaches for DocRE aim to extract relation by encoding various information sources in…

计算与语言 · 计算机科学 2022-05-24 Yangkai Du , Tengfei Ma , Lingfei Wu , Yiming Wu , Xuhong Zhang , Bo Long , Shouling Ji

During the past decade, neural networks have become prominent in Natural Language Processing (NLP), notably for their capacity to learn relevant word representations from large unlabeled corpora. These word embeddings can then be…

计算与语言 · 计算机科学 2022-06-16 Bruno Taillé

TACRED (Zhang et al., 2017) is one of the largest, most widely used crowdsourced datasets in Relation Extraction (RE). But, even with recent advances in unsupervised pre-training and knowledge enhanced neural RE, models still show a high…

计算与语言 · 计算机科学 2020-05-01 Christoph Alt , Aleksandra Gabryszak , Leonhard Hennig

Traditional supervised learning makes the closed-world assumption that the classes appeared in the test data must have appeared in training. This also applies to text learning or text classification. As learning is used increasingly in…

计算与语言 · 计算机科学 2017-09-27 Lei Shu , Hu Xu , Bing Liu

Recognizing relations between two words is a fundamental task with the broad applications. Different from extracting relations from text, it is difficult to identify relations among words without their contexts. Especially for long-tail…

计算与语言 · 计算机科学 2024-06-18 Shuyi Li , Shaojuan Wu , Xiaowang Zhang , Zhiyong Feng

We explore methods to extract relations between named entities from free text in an unsupervised setting. In addition to standard feature extraction, we develop a novel method to re-weight word embeddings. We alleviate the problem of…

计算与语言 · 计算机科学 2018-01-23 Hady Elsahar , Elena Demidova , Simon Gottschalk , Christophe Gravier , Frederique Laforest

Multimodal relation extraction (MRE) is the task of identifying the semantic relationships between two entities based on the context of the sentence image pair. Existing retrieval-augmented approaches mainly focused on modeling the…

计算与语言 · 计算机科学 2023-05-26 Xuming Hu , Zhijiang Guo , Zhiyang Teng , Irwin King , Philip S. Yu

Document-level relation extraction (DocRE) predicts relations for entity pairs that rely on long-range context-dependent reasoning in a document. As a typical multi-label classification problem, DocRE faces the challenge of effectively…

计算与语言 · 计算机科学 2023-04-04 Jia Guo , Stanley Kok , Lidong Bing

Unknown examples that are unseen during training often appear in real-world machine learning tasks, and an intelligent self-learning system should be able to distinguish between known and unknown examples. Accordingly, open set recognition…

计算机视觉与模式识别 · 计算机科学 2022-07-18 Jaeyeon Jang , Chang Ouk Kim

Low-resource Relation Extraction (LRE) aims to extract relation facts from limited labeled corpora when human annotation is scarce. Existing works either utilize self-training scheme to generate pseudo labels that will cause the gradual…

计算与语言 · 计算机科学 2021-09-15 Xuming Hu , Chenwei Zhang , Yawen Yang , Xiaohe Li , Li Lin , Lijie Wen , Philip S. Yu

Wrong labeling problem and long-tail relations are two main challenges caused by distant supervision in relation extraction. Recent works alleviate the wrong labeling by selective attention via multi-instance learning, but cannot well…

计算与语言 · 计算机科学 2020-11-03 Yang Li , Tao Shen , Guodong Long , Jing Jiang , Tianyi Zhou , Chengqi Zhang

Many practical medical imaging scenarios include categories that are under-represented but still crucial. The relevance of image recognition models to real-world applications lies in their ability to generalize to these rare classes as well…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Daniya Najiha A. Kareem , Jean Lahoud , Mustansar Fiaz , Amandeep Kumar , Hisham Cholakkal

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…

机器学习 · 计算机科学 2022-09-09 Haoang Chi , Feng Liu , Bo Han , Wenjing Yang , Long Lan , Tongliang Liu , Gang Niu , Mingyuan Zhou , Masashi Sugiyama

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…

Document-level relation extraction (RE), which requires reasoning on multiple entities in different sentences to identify complex inter-sentence relations, is more challenging than sentence-level RE. To extract the complex inter-sentence…

计算与语言 · 计算机科学 2022-04-04 Liang Zhang , Yidong Cheng

The growing demand for efficient knowledge graph (KG) enrichment leveraging external corpora has intensified interest in relation extraction (RE), particularly under low-supervision settings. To address the need for adaptable and…

计算与语言 · 计算机科学 2025-07-10 Luca Mariotti , Veronica Guidetti , Federica Mandreoli

Document-level Relation Extraction (DocRE) is a more challenging task compared to its sentence-level counterpart. It aims to extract relations from multiple sentences at once. In this paper, we propose a semi-supervised framework for DocRE…

计算与语言 · 计算机科学 2022-03-22 Qingyu Tan , Ruidan He , Lidong Bing , Hwee Tou Ng