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Recognizing useful named entities plays a vital role in medical information processing, which helps drive the development of medical area research. Deep learning methods have achieved good results in medical named entity recognition (NER).…

计算与语言 · 计算机科学 2022-11-10 Junzhe Jiang , Mingyue Cheng , Qi Liu , Zhi Li , Enhong Chen

We cast nested named entity recognition (NNER) as a sequence labeling task by leveraging prior work that linearizes constituency structures, effectively reducing the complexity of this structured prediction problem to straightforward token…

计算与语言 · 计算机科学 2025-09-30 Alberto Muñoz-Ortiz , David Vilares , Caio Corro , Carlos Gómez-Rodríguez

In this paper, we propose a new strategy for the task of named entity recognition (NER). We cast the task as a query-based machine reading comprehension task: e.g., the task of extracting entities with PER is formalized as answering the…

计算与语言 · 计算机科学 2019-11-05 Yuxian Meng , Xiaoya Li , Zijun Sun , Jiwei Li

Named entity recognition (NER) is a well-studied task in natural language processing. Traditional NER research only deals with flat entities and ignores nested entities. The span-based methods treat entity recognition as a span…

计算与语言 · 计算机科学 2021-07-14 Yongliang Shen , Xinyin Ma , Zeqi Tan , Shuai Zhang , Wen Wang , Weiming Lu

A large amount of information in today's world is now stored in knowledge bases. Named Entity Recognition (NER) is a process of extracting, disambiguation, and linking an entity from raw text to insightful and structured knowledge bases.…

计算与语言 · 计算机科学 2024-11-11 Monica Munnangi

Named entity recognition (NER) remains challenging when entity mentions can be discontinuous. Existing methods break the recognition process into several sequential steps. In training, they predict conditioned on the golden intermediate…

计算与语言 · 计算机科学 2021-11-29 Yucheng Wang , Bowen Yu , Hongsong Zhu , Tingwen Liu , Nan Yu , Limin Sun

Named Entity Recognition (NER) is a fundamental Natural Language Processing (NLP) task to extract entities from unstructured data. The previous methods for NER were based on machine learning or deep learning. Recently, pre-training models…

计算与语言 · 计算机科学 2020-02-21 Yu Wang , Yining Sun , Zuchang Ma , Lisheng Gao , Yang Xu , Ting Sun

The task of Named Entity Recognition (NER) is an important component of many natural language processing systems, such as relation extraction and knowledge graph construction. In this work, we present a simple and effective approach for…

计算与语言 · 计算机科学 2022-03-29 Urchade Zaratiana , Pierre Holat , Nadi Tomeh , Thierry Charnois

State-of-the-art named entity recognition (NER) systems have been improving continuously using neural architectures over the past several years. However, many tasks including NER require large sets of annotated data to achieve such…

机器学习 · 计算机科学 2020-01-22 Parminder Bhatia , Kristjan Arumae , Busra Celikkaya

State of the art Named Entity Recognition (NER) models have achieved an impressive ability to extract common phrases from text that belong to labels such as location, organization, time, and person. However, typical NER systems that rely on…

计算与语言 · 计算机科学 2024-01-24 Alexandra Loessberg-Zahl

Named entity recognition (NER) is the very first step in the linguistic processing of any new domain. It is currently a common process in BioNLP on English clinical text. However, it is still in its infancy in other major languages, as it…

计算与语言 · 计算机科学 2019-12-20 Fernando Sánchez León , Ana González Ledesma

Ever-larger language models with ever-increasing capabilities are by now well-established text processing tools. Alas, information extraction tasks such as named entity recognition are still largely unaffected by this progress as they are…

计算与语言 · 计算机科学 2023-08-16 Tobias Deußer , Lars Hillebrand , Christian Bauckhage , Rafet Sifa

Named entity recognition (NER) is the task to detect and classify the entity spans in the text. When entity spans overlap between each other, this problem is named as nested NER. Span-based methods have been widely used to tackle the nested…

计算与语言 · 计算机科学 2022-09-16 Hang Yan , Yu Sun , Xiaonan Li , Xipeng Qiu

Named Entity Recognition (NER) is an essential precursor task for many natural language applications, such as relation extraction or event extraction. Much of the NER research has been done on datasets with few classes of entity types (e.g.…

计算与语言 · 计算机科学 2020-09-17 Parul Awasthy , Taesun Moon , Jian Ni , Radu Florian

In this paper, we study ordered representations of data in which different dimensions have different degrees of importance. To learn these representations we introduce nested dropout, a procedure for stochastically removing coherent nested…

机器学习 · 统计学 2014-02-06 Oren Rippel , Michael A. Gelbart , Ryan P. Adams

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…

信息检索 · 计算机科学 2018-10-09 Xuan Wang , Yu Zhang , Xiang Ren , Yuhao Zhang , Marinka Zitnik , Jingbo Shang , Curtis Langlotz , Jiawei Han

Named Entity Recognition (NER) is a key NLP task, which is all the more challenging on Web and user-generated content with their diverse and continuously changing language. This paper aims to quantify how this diversity impacts…

计算与语言 · 计算机科学 2017-03-09 Isabelle Augenstein , Leon Derczynski , Kalina Bontcheva

Empirical complex systems can be characterized not only by pairwise interactions, but also by higher-order (group) interactions influencing collective phenomena, from metabolic reactions to epidemics. Nevertheless, higher-order networks'…

物理与社会 · 物理学 2026-01-01 Maxime Lucas , Luca Gallo , Arsham Ghavasieh , Federico Battiston , Manlio De Domenico

Named entity recognition (NER) is used to extract information from various documents and texts such as names and dates. It is important to extract education and work experience information from resumes in order to filter them. Considering…

计算与语言 · 计算机科学 2023-06-23 Ege Kesim , Aysu Deliahmetoglu

Most named entity recognition (NER) systems focus on improving model performance, ignoring the need to quantify model uncertainty, which is critical to the reliability of NER systems in open environments. Evidential deep learning (EDL) has…

计算与语言 · 计算机科学 2023-05-30 Zhen Zhang , Mengting Hu , Shiwan Zhao , Minlie Huang , Haotian Wang , Lemao Liu , Zhirui Zhang , Zhe Liu , Bingzhe Wu