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Current work in named entity recognition (NER) uses either cross entropy (CE) or conditional random fields (CRF) as the objective/loss functions to optimize the underlying NER model. Both of these traditional objective functions for the NER…

Computation and Language · Computer Science 2023-04-17 Ngoc Dang Nguyen , Wei Tan , Wray Buntine , Richard Beare , Changyou Chen , Lan Du

Biomedical Named Entity Recognition presents significant challenges due to the complexity of biomedical terminology and inconsistencies in annotation across datasets. This paper introduces SRU-NER (Slot-based Recurrent Unit NER), a novel…

Computation and Language · Computer Science 2025-07-25 João Ruano , Gonçalo M. Correia , Leonor Barreiros , Afonso Mendes

In named entity recognition, we often don't have a large in-domain training corpus or a knowledge base with adequate coverage to train a model directly. In this paper, we propose a method where, given training data in a related domain with…

Computation and Language · Computer Science 2016-11-01 Lizhen Qu , Gabriela Ferraro , Liyuan Zhou , Weiwei Hou , Timothy Baldwin

Named entity recognition (NER), a task that identifies and categorizes named entities such as persons or organizations from text, is traditionally framed as a multi-class classification problem. However, this approach often overlooks the…

Computation and Language · Computer Science 2023-11-10 Ngoc Dang Nguyen , Wei Tan , Lan Du , Wray Buntine , Richard Beare , Changyou Chen

Named entity recognition (NER) is a widely studied task in natural language processing. Recently, a growing number of studies have focused on the nested NER. The span-based methods, considering the entity recognition as a span…

Computation and Language · Computer Science 2021-06-22 Zeqi Tan , Yongliang Shen , Shuai Zhang , Weiming Lu , Yueting Zhuang

Named entity disambiguation (NED), which involves mapping textual mentions to structured entities, is particularly challenging in the medical domain due to the presence of rare entities. Existing approaches are limited by the presence of…

Computation and Language · Computer Science 2021-10-18 Maya Varma , Laurel Orr , Sen Wu , Megan Leszczynski , Xiao Ling , Christopher Ré

Developing high-performing systems for detecting biomedical named entities has major implications. State-of-the-art deep-learning based solutions for entity recognition often require large annotated datasets, which is not available in the…

Computation and Language · Computer Science 2020-11-03 Arda Akdemir , Tetsuo Shibuya

Named entity recognition (NER) stands as a fundamental and pivotal task within the realm of Natural Language Processing. Particularly within the domain of Biomedical Method NER, this task presents notable challenges, stemming from the…

Computation and Language · Computer Science 2024-07-01 Chen Tang , Bohao Yang , Kun Zhao , Bo Lv , Chenghao Xiao , Frank Guerin , Chenghua Lin

Clinical named entity recognition (NER) aims to retrieve important entities within clinical narratives. Recent works have demonstrated that large language models (LLMs) can achieve strong performance in this task. While previous works focus…

Computation and Language · Computer Science 2025-02-21 Reza Averly , Xia Ning

Biomedical Named Entity Recognition (NER) is a fundamental task of Biomedical Natural Language Processing for extracting relevant information from biomedical texts, such as clinical records, scientific publications, and electronic health…

Computation and Language · Computer Science 2023-12-27 Fahime Shahrokh , Nasser Ghadiri , Rasoul Samani , Milad Moradi

Named entity recognition (NER) is an important research problem in natural language processing. There are three types of NER tasks, including flat, nested and discontinuous entity recognition. Most previous sequential labeling models are…

Computation and Language · Computer Science 2023-03-21 Ying Mo , Hongyin Tang , Jiahao Liu , Qifan Wang , Zenglin Xu , Jingang Wang , Wei Wu , Zhoujun Li

Named entity recognition (NER) and entity linking (EL) are two fundamentally related tasks, since in order to perform EL, first the mentions to entities have to be detected. However, most entity linking approaches disregard the mention…

Computation and Language · Computer Science 2019-07-22 Pedro Henrique Martins , Zita Marinho , André F. T. Martins

Motivation: State-of-the-art biomedical named entity recognition (BioNER) systems often require handcrafted features specific to each entity type, such as genes, chemicals and diseases. Although recent studies explored using neural network…

Information Retrieval · Computer Science 2018-10-09 Xuan Wang , Yu Zhang , Xiang Ren , Yuhao Zhang , Marinka Zitnik , Jingbo Shang , Curtis Langlotz , Jiawei Han

Cross-domain NER is a practical yet challenging problem since the data scarcity in the real-world scenario. A common practice is first to learn a NER model in a rich-resource general domain and then adapt the model to specific domains. Due…

Computation and Language · Computer Science 2024-08-09 Junhao Zheng , Haibin Chen , Qianli Ma

Named Entity Recognition (NER) is an important task in natural language processing. However, traditional supervised NER requires large-scale annotated datasets. Distantly supervision is proposed to alleviate the massive demand for datasets,…

Computation and Language · Computer Science 2022-08-08 Wentao Kang , Guijun Zhang , Xiao Fu

In the domain of Natural Language Processing (NLP), Named Entity Recognition (NER) stands out as a pivotal mechanism for extracting structured insights from unstructured text. This manuscript offers an exhaustive exploration into the…

Computation and Language · Computer Science 2023-09-26 Kalyani Pakhale

Named Entity Recognition (NER) aims to extract and classify entity mentions in the text into pre-defined types (e.g., organization or person name). Recently, many works have been proposed to shape the NER as a machine reading comprehension…

Computation and Language · Computer Science 2023-09-21 Yibo Wang , Wenting Zhao , Yao Wan , Zhongfen Deng , Philip S. Yu

Named Entity Recognition (NER) encounters the challenge of unbalanced labels, where certain entity types are overrepresented while others are underrepresented in real-world datasets. This imbalance can lead to biased models that perform…

Computation and Language · Computer Science 2024-09-06 Abdul Rehman , Jian Jun Zhang , Xiaosong Yang

Named entity recognition is a key component of Information Extraction (IE), particularly in scientific domains such as biomedicine and chemistry, where large language models (LLMs), e.g., ChatGPT, fall short. We investigate the…

Computation and Language · Computer Science 2024-04-02 Hongyi Liu , Qingyun Wang , Payam Karisani , Heng Ji

Cross-domain named entity recognition (NER) models are able to cope with the scarcity issue of NER samples in target domains. However, most of the existing NER benchmarks lack domain-specialized entity types or do not focus on a certain…

Computation and Language · Computer Science 2020-12-15 Zihan Liu , Yan Xu , Tiezheng Yu , Wenliang Dai , Ziwei Ji , Samuel Cahyawijaya , Andrea Madotto , Pascale Fung
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