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Named Entity Recognition (NER) is a key step in the creation of structured data from digitised historical documents. Traditional NER approaches deal with flat named entities, whereas entities often are nested. For example, a postal address…

Information Retrieval · Computer Science 2023-02-22 Solenn Tual , Nathalie Abadie , J Chazalon , Bertrand Duménieu , Edwin Carlinet

With the fast development of Deep Learning techniques, Named Entity Recognition (NER) is becoming more and more important in the information extraction task. The greatest difficulty that the NER task faces is to keep the detectability even…

Computation and Language · Computer Science 2024-01-23 Xin Chen , Qi Zhao , Xinyang Liu

The clinical named entity recognition (CNER) task seeks to locate and classify clinical terminologies into predefined categories, such as diagnostic procedure, disease disorder, severity, medication, medication dosage, and sign symptom.…

Computation and Language · Computer Science 2021-06-25 Yichao Zhou , Chelsea Ju , J. Harry Caufield , Kevin Shih , Calvin Chen , Yizhou Sun , Kai-Wei Chang , Peipei Ping , Wei Wang

We introduce the Universal Named-Entity Recognition (UNER)framework, a 4-level classification hierarchy, and the methodology that isbeing adopted to create the first multilingual UNER corpus: the SETimesparallel corpus annotated for…

Computation and Language · Computer Science 2020-10-26 Diego Alves , Tin Kuculo , Gabriel Amaral , Gaurish Thakkar , Marko Tadic

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…

Computation and Language · Computer Science 2019-12-20 Fernando Sánchez León , Ana González Ledesma

The MultiCoNER II task aims to detect complex, ambiguous, and fine-grained named entities in low-context situations and noisy scenarios like the presence of spelling mistakes and typos for multiple languages. The task poses significant…

Computation and Language · Computer Science 2023-05-11 Long Ma , Kai Lu , Tianbo Che , Hailong Huang , Weiguo Gao , Xuan Li

Named Entity Recognition (NER) is a core natural language processing task in which pre-trained language models have shown remarkable performance. However, standard benchmarks like CoNLL 2003 do not address many of the challenges that…

Computation and Language · Computer Science 2023-05-01 Iker García-Ferrero , Jon Ander Campos , Oscar Sainz , Ander Salaberria , Dan Roth

In nested Named entity recognition (NER), entities are nested with each other, and thus requiring more data annotations to address. This leads to the development of few-shot nested NER, where the prevalence of pretrained language models…

Computation and Language · Computer Science 2024-02-05 Meishan Zhang , Bin Wang , Hao Fei , Min Zhang

Named Entity Recognition (NER) is a crucial upstream task in Natural Language Processing (NLP). Traditional tag scheme approaches offer a single recognition that does not meet the needs of many downstream tasks such as coreference…

Computation and Language · Computer Science 2020-04-30 Wendong He , Yizhen Shao , Pingjian Zhang

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

The MultiCoNER \RNum{2} shared task aims to tackle multilingual named entity recognition (NER) in fine-grained and noisy scenarios, and it inherits the semantic ambiguity and low-context setting of the MultiCoNER \RNum{1} task. To cope with…

Computation and Language · Computer Science 2023-05-18 Zeqi Tan , Shen Huang , Zixia Jia , Jiong Cai , Yinghui Li , Weiming Lu , Yueting Zhuang , Kewei Tu , Pengjun Xie , Fei Huang , Yong Jiang

Chinese word segmentation is necessary to provide word-level information for Chinese named entity recognition (NER) systems. However, segmentation error propagation is a challenge for Chinese NER while processing colloquial data like social…

Computation and Language · Computer Science 2020-06-16 Shengbin Jia , Ling Ding , Xiaojun Chen , Shijia E , Yang Xiang

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,…

Information Retrieval · Computer Science 2017-10-31 Diego Esteves , Rafael Peres , Jens Lehmann , Giulio Napolitano

Named entity recognition (NER) is a widely applicable natural language processing task and building block of question answering, topic modeling, information retrieval, etc. In the medical domain, NER plays a crucial role by extracting…

Computation and Language · Computer Science 2020-11-13 Veysel Kocaman , David Talby

Named Entity Recognition seeks to extract substrings within a text that name real-world objects and to determine their type (for example, whether they refer to persons or organizations). In this survey, we first present an overview of…

Computation and Language · Computer Science 2024-12-23 Imed Keraghel , Stanislas Morbieu , Mohamed Nadif

Named Entity Recognition(NER) is a task of recognizing entities at a token level in a sentence. This paper focuses on solving NER tasks in a multilingual setting for complex named entities. Our team, LLM-RM participated in the recently…

Computation and Language · Computer Science 2023-05-08 Rahul Mehta , Vasudeva Varma

While Named Entity Recognition (NER) is a widely studied task, making inferences of entities with only a few labeled data has been challenging, especially for entities with nested structures. Unlike flat entities, entities and their nested…

Computation and Language · Computer Science 2022-12-05 Hong Ming , Jiaoyun Yang , Lili Jiang , Yan Pan , Ning An

Building real-world complex Named Entity Recognition (NER) systems is a challenging task. This is due to the complexity and ambiguity of named entities that appear in various contexts such as short input sentences, emerging entities, and…

Computation and Language · Computer Science 2022-04-29 Abdellah El Mekki , Abdelkader El Mahdaouy , Mohammed Akallouch , Ismail Berrada , Ahmed Khoumsi

Spoken named entity recognition (NER) aims to identify named entities from speech, playing an important role in speech processing. New named entities appear every day, however, annotating their Spoken NER data is costly. In this paper, we…

Computation and Language · Computer Science 2024-12-30 Jiawei Yu , Xiang Geng , Yuang Li , Mengxin Ren , Wei Tang , Jiahuan Li , Zhibin Lan , Min Zhang , Hao Yang , Shujian Huang , Jinsong Su

Named Entity Recognition (NER) frequently suffers from the problem of insufficient labeled data, particularly in fine-grained NER scenarios. Although $K$-shot learning techniques can be applied, their performance tends to saturate when the…

Computation and Language · Computer Science 2023-11-14 Su Ah Lee , Seokjin Oh , Woohwan Jung