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相关论文: Biomedical Named Entity Recognition via Reference-…

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Current work in named entity recognition (NER) shows that data augmentation techniques can produce more robust models. However, most existing techniques focus on augmenting in-domain data in low-resource scenarios where annotated data is…

计算与语言 · 计算机科学 2021-09-07 Shuguang Chen , Gustavo Aguilar , Leonardo Neves , Thamar Solorio

Named entity recognition (NER), which focuses on the extraction of semantically meaningful named entities and their semantic classes from text, serves as an indispensable component for several down-stream natural language processing (NLP)…

计算与语言 · 计算机科学 2018-10-23 Zhanming Jie , Aldrian Obaja Muis , Wei Lu

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…

计算与语言 · 计算机科学 2021-06-22 Zeqi Tan , Yongliang Shen , Shuai Zhang , Weiming Lu , Yueting Zhuang

Objective: This study quantifies the capabilities of GPT-3.5 and GPT-4 for clinical named entity recognition (NER) tasks and proposes task-specific prompts to improve their performance. Materials and Methods: We evaluated these models on…

To achieve state-of-the-art performance, one still needs to train NER models on large-scale, high-quality annotated data, an asset that is both costly and time-intensive to accumulate. In contrast, real-world applications often resort to…

计算与语言 · 计算机科学 2023-10-26 Zhendong Chu , Ruiyi Zhang , Tong Yu , Rajiv Jain , Vlad I Morariu , Jiuxiang Gu , Ani Nenkova

While named entity recognition (NER) is a key task in natural language processing, most approaches only target flat entities, ignoring nested structures which are common in many scenarios. Most existing nested NER methods traverse all…

计算与语言 · 计算机科学 2021-07-21 Huiqiang Jiang , Guoxin Wang , Weile Chen , Chengxi Zhang , Börje F. Karlsson

Functioning is gaining recognition as an important indicator of global health, but remains under-studied in medical natural language processing research. We present the first analysis of automatically extracting descriptions of patient…

计算与语言 · 计算机科学 2018-06-08 Denis Newman-Griffis , Ayah Zirikly

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

We present a simple approach to improve biomedical named entity recognition (NER) by injecting categorical labels and Part-of-speech (POS) information into the model. We use two approaches, in the first approach, we first train a…

计算与语言 · 计算机科学 2023-11-07 Sumam Francis , Marie-Francine Moens

Named entity recognition (NER) plays an important role in text-based information retrieval. In this paper, we combine Bidirectional Long Short-Term Memory (Bi-LSTM) \cite{hochreiter1997,schuster1997} with Conditional Random Field (CRF)…

计算与语言 · 计算机科学 2019-12-04 Ngoc C. Lê , Ngoc-Yen Nguyen , Anh-Duong Trinh

Recent named entity recognition (NER) models often rely on human-annotated datasets, requiring the significant engagement of professional knowledge on the target domain and entities. This research introduces an ask-to-generate approach that…

计算与语言 · 计算机科学 2022-11-08 Hyunjae Kim , Jaehyo Yoo , Seunghyun Yoon , Jinhyuk Lee , Jaewoo Kang

Most Named Entity Recognition (NER) models operate under the assumption that training datasets are fully labelled. While it is valid for established datasets like CoNLL 2003 and OntoNotes, sometimes it is not feasible to obtain the complete…

计算与语言 · 计算机科学 2022-11-29 Viktor Scherbakov , Vladimir Mayorov

To tackle Named Entity Recognition (NER) tasks, supervised methods need to obtain sufficient cleanly annotated data, which is labor and time consuming. On the contrary, distantly supervised methods acquire automatically annotated data using…

计算与语言 · 计算机科学 2019-12-05 Shifeng Liu , Yifang Sun , Bing Li , Wei Wang , Xiang Zhao

In this paper, we present our approach to extracting structured information from unstructured Electronic Health Records (EHR) [2] which can be used to, for example, study adverse drug reactions in patients due to chemicals in their…

计算与语言 · 计算机科学 2020-01-30 Amogh Kamat Tarcar , Aashis Tiwari , Vineet Naique Dhaimodker , Penjo Rebelo , Rahul Desai , Dattaraj Rao

Named Entity Recognition (NER) is a fundamental task in Natural Language Processing, concerned with identifying spans of text expressing references to entities. NER research is often focused on flat entities only (flat NER), ignoring the…

计算与语言 · 计算机科学 2020-06-16 Juntao Yu , Bernd Bohnet , Massimo Poesio

The rapidly increasing volume of electronic health record (EHR) data underscores a pressing need to unlock biomedical knowledge from unstructured clinical texts to support advancements in data-driven clinical systems, including patient…

计算与语言 · 计算机科学 2025-10-21 Manuela Daniela Danu , George Marica , Constantin Suciu , Lucian Mihai Itu , Oladimeji Farri

The state-of-the-art named entity recognition (NER) systems are supervised machine learning models that require large amounts of manually annotated data to achieve high accuracy. However, annotating NER data by human is expensive and…

计算与语言 · 计算机科学 2019-11-04 Jian Ni , Georgiana Dinu , Radu Florian

Named Entity Recognition (NER) is an important subtask of information extraction that seeks to locate and recognise named entities. Despite recent achievements, we still face limitations with correctly detecting and classifying entities,…

信息检索 · 计算机科学 2017-10-31 Diego Esteves , Rafael Peres , Jens Lehmann , Giulio Napolitano

Entity linking (EL) for biomedical text is typically benchmarked on English-only corpora with flat mentions, leaving the more realistic scenario of nested and multilingual mentions largely unexplored. We present our system for the BioNNE…

计算与语言 · 计算机科学 2025-09-15 Chunyu Li , Xindi Zheng , Siqi Liu

This study improves the performance of neural named entity recognition by a margin of up to 11% in F-score on the example of a low-resource language like German, thereby outperforming existing baselines and establishing a new…

计算与语言 · 计算机科学 2018-07-30 Sajawel Ahmed , Alexander Mehler