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Social event detection involves identifying and categorizing important events from social media, which relies on labeled data, but annotation is costly and labor-intensive. To address this problem, we propose Augmentation framework for…

Computation and Language · Computer Science 2025-09-05 Congbo Ma , Yuxia Wang , Jia Wu , Jian Yang , Jing Du , Zitai Qiu , Qing Li , Hu Wang , Preslav Nakov

Span-based joint extraction simultaneously conducts named entity recognition (NER) and relation extraction (RE) in text span form. Recent studies have shown that token labels can convey crucial task-specific information and enrich token…

Computation and Language · Computer Science 2022-07-19 Bin Ji , Shasha Li , Jie Yu , Jun Ma , Huijun Liu

Coherence evaluation aims to assess the organization and structure of a discourse, which remains challenging even in the era of large language models. Due to the scarcity of annotated data, data augmentation is commonly used for training…

Computation and Language · Computer Science 2024-04-02 Dawei Zhu , Wenhao Wu , Yifan Song , Fangwei Zhu , Ziqiang Cao , Sujian Li

Joint entity and relation extraction is the fundamental task of information extraction, consisting of two subtasks: named entity recognition and relation extraction. However, most existing joint extraction methods suffer from issues of…

Computation and Language · Computer Science 2024-03-28 Wenjun Kong , Yamei Xia

Data augmentation has been recently leveraged as an effective regularizer in various vision-language deep neural networks. However, in text-to-image synthesis (T2Isyn), current augmentation wisdom still suffers from the semantic mismatch…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Zhaorui Tan , Xi Yang , Kaizhu Huang

The recent emergence of Self-Supervised Learning (SSL) as a fundamental paradigm for learning image representations has, and continues to, demonstrate high empirical success in a variety of tasks. However, most SSL approaches fail to learn…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Alžběta Manová , Aiden Durrant , Georgios Leontidis

Stepping from sentence-level to document-level, the research on relation extraction (RE) confronts increasing text length and more complicated entity interactions. Consequently, it is more challenging to encode the key information…

Computation and Language · Computer Science 2022-05-03 Yuxin Xiao , Zecheng Zhang , Yuning Mao , Carl Yang , Jiawei Han

Existing approaches for named entity recognition suffer from data sparsity problems when conducted on short and informal texts, especially user-generated social media content. Semantic augmentation is a potential way to alleviate this…

Computation and Language · Computer Science 2020-10-30 Yuyang Nie , Yuanhe Tian , Xiang Wan , Yan Song , Bo Dai

Event extraction aims to recognize pre-defined event triggers and arguments from texts, which suffer from the lack of high-quality annotations. In most NLP applications, involving a large scale of synthetic training data is a practical and…

Computation and Language · Computer Science 2023-05-17 bo wang , Heyan Huang , Xiaochi Wei , Ge Shi , Xiao Liu , Chong Feng , Tong Zhou , Shuaiqiang Wang , Dawei Yin

Extracting cybersecurity entities such as attackers and vulnerabilities from unstructured network texts is an important part of security analysis. However, the sparsity of intelligence data resulted from the higher frequency variations and…

Cryptography and Security · Computer Science 2022-07-04 Peipei Liu , Hong Li , Zuoguang Wang , Jie Liu , Yimo Ren , Hongsong Zhu

Data scarcity is one of the main obstacles of domain adaptation in spoken language understanding (SLU) due to the high cost of creating manually tagged SLU datasets. Recent works in neural text generative models, particularly latent…

Computation and Language · Computer Science 2018-11-07 Kang Min Yoo , Youhyun Shin , Sang-goo Lee

Relation Extraction (RE) aims at recognizing the relation between pairs of entities mentioned in a text. Advances in LLMs have had a tremendous impact on NLP. In this work, we propose a textual data augmentation framework called PGA for…

Computation and Language · Computer Science 2024-06-03 Yang Zhou , Shimin Shan , Hongkui Wei , Zhehuan Zhao , Wenshuo Feng

End-to-end Speech Translation is hindered by a lack of available data resources. While most of them are based on documents, a sentence-level version is available, which is however single and static, potentially impeding the usefulness of…

Computation and Language · Computer Science 2023-11-02 Ioannis Tsiamas , José A. R. Fonollosa , Marta R. Costa-jussà

Entity embeddings, which represent different aspects of each entity with a single vector like word embeddings, are a key component of neural entity linking models. Existing entity embeddings are learned from canonical Wikipedia articles and…

Computation and Language · Computer Science 2021-06-17 Feng Hou , Ruili Wang , Jun He , Yi Zhou

Self-Supervised learning (SSL) with Joint-Embedding Architectures (JEA) has led to outstanding performances. All instantiations of this paradigm were trained using strong and well-established hand-crafted data augmentations, leading to the…

Machine Learning · Computer Science 2024-12-02 Théo Moutakanni , Maxime Oquab , Marc Szafraniec , Maria Vakalopoulou , Piotr Bojanowski

Entity and relation extraction is a key task in information extraction, where the output can be used for downstream NLP tasks. Existing approaches for entity and relation extraction tasks mainly focus on the English corpora and ignore other…

Computation and Language · Computer Science 2023-01-12 Zixiang Wang , Jian Yang , Tongliang Li , Jiaheng Liu , Ying Mo , Jiaqi Bai , Longtao He , Zhoujun Li

This paper proposes a structure-aware decoding method based on large language models to address the difficulty of traditional approaches in maintaining both semantic integrity and structural consistency in nested and overlapping entity…

Computation and Language · Computer Science 2026-01-29 Zhimin Qiu , Di Wu , Feng Liu , Yuxiao Wang

Automated entity relation extraction (RE) from literature provides an important source for constructing biomedical database, which is more efficient and extensible than manual curation. However, existing RE models usually ignore the…

Computation and Language · Computer Science 2019-06-25 Lixiang Hong , JinJian Lin , Jiang Tao , Jianyang Zeng

In Biomedical Natural Language Processing (BioNLP) tasks, such as Relation Extraction, Named Entity Recognition, and Text Classification, the scarcity of high-quality data remains a significant challenge. This limitation poisons large…

Computation and Language · Computer Science 2025-04-01 Zhengyi Zhao , Shubo Zhang , Bin Liang , Binyang Li , Kam-Fai Wong

Collecting and annotating datasets for pixel-level semantic segmentation tasks are highly labor-intensive. Data augmentation provides a viable solution by enhancing model generalization without additional real-world data collection.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Huy Che , Dinh-Duy Phan , Duc-Khai Lam