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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

Zero-shot named entity recognition (NER) is the task of detecting named entities of specific types (such as 'Person' or 'Medicine') without any training examples. Current research increasingly relies on large synthetic datasets,…

计算与语言 · 计算机科学 2025-03-10 Jonas Golde , Patrick Haller , Max Ploner , Fabio Barth , Nicolaas Jedema , Alan Akbik

Many recent named entity recognition (NER) studies criticize flat NER for its non-overlapping assumption, and switch to investigating nested NER. However, existing nested NER models heavily rely on training data annotated with nested…

计算与语言 · 计算机科学 2022-11-02 Enwei Zhu , Yiyang Liu , Ming Jin , Jinpeng Li

The recognition of named entities in visually-rich documents (VrD-NER) plays a critical role in various real-world scenarios and applications. However, the research in VrD-NER faces three major challenges: complex document layouts,…

计算与语言 · 计算机科学 2024-08-13 Yi Tu , Chong Zhang , Ya Guo , Huan Chen , Jinyang Tang , Huijia Zhu , Qi Zhang

Named Entity Recognition (NER) involves the identification and classification of named entities in unstructured text into predefined classes. NER in languages with limited resources, like French, is still an open problem due to the lack of…

Clinical concept extraction often begins with clinical Named Entity Recognition (NER). Often trained on annotated clinical notes, clinical NER models tend to struggle with tagging clinical entities in user queries because of the structural…

信息检索 · 计算机科学 2019-12-25 Yue Zhao , John Handley

In the field of Natural Language Processing (NLP), Named Entity Recognition (NER) is recognized as a critical technology, employed across a wide array of applications. Traditional methodologies for annotating datasets for NER models are…

计算与语言 · 计算机科学 2025-01-03 Yuji Naraki , Ryosuke Yamaki , Yoshikazu Ikeda , Takafumi Horie , Kotaro Yoshida , Ryotaro Shimizu , Hiroki Naganuma

In medical information extraction, medical Named Entity Recognition (NER) is indispensable, playing a crucial role in developing medical knowledge graphs, enhancing medical question-answering systems, and analyzing electronic medical…

计算与语言 · 计算机科学 2024-03-26 Xiaojing Du , Hanjie Zhao , Danyan Xing , Yuxiang Jia , Hongying Zan

Chemical named entity recognition (NER) models are used in many downstream tasks, from adverse drug reaction identification to pharmacoepidemiology. However, it is unknown whether these models work the same for everyone. Performance…

计算与语言 · 计算机科学 2024-03-14 Xingmeng Zhao , Ali Niazi , Anthony Rios

Incorporating external knowledge into Named Entity Recognition (NER) systems has been widely studied in the generic domain. In this paper, we focus on clinical domain where only limited data is accessible and interpretability is important.…

计算与语言 · 计算机科学 2021-05-28 Qing Sun , Parminder Bhatia

Traditional text classification techniques in clinical domain have heavily relied on the manually extracted textual cues. This paper proposes a generally supervised machine learning method that is equally hassle-free and does not use…

计算与语言 · 计算机科学 2018-08-15 Liu Man

Many previous models of named entity recognition (NER) suffer from the problem of Out-of-Entity (OOE), i.e., the tokens in the entity mentions of the test samples have not appeared in the training samples, which hinders the achievement of…

计算与语言 · 计算机科学 2025-01-14 Guochao Jiang , Ziqin Luo , Chengwei Hu , Zepeng Ding , Deqing Yang

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…

计算与语言 · 计算机科学 2024-08-09 Junhao Zheng , Haibin Chen , Qianli Ma

In this paper, we introduce the NameRec* task, which aims to do highly accurate and fine-grained person name recognition. Traditional Named Entity Recognition models have good performance in recognising well-formed person names from text…

计算与语言 · 计算机科学 2021-03-24 Rui Zhang , Yimeng Dai , Shijie Liu

The information bottleneck (IB) principle has been proven effective in various NLP applications. The existing work, however, only used either generative or information compression models to improve the performance of the target task. In…

计算与语言 · 计算机科学 2023-02-13 Nhung T. H. Nguyen , Makoto Miwa , Sophia Ananiadou

Literature analysis facilitates researchers to acquire a good understanding of the development of science and technology. The traditional literature analysis focuses largely on the literature metadata such as topics, authors, abstracts,…

人工智能 · 计算机科学 2021-01-29 Linlin Hou , Ji Zhang , Ou Wu , Ting Yu , Zhen Wang , Zhao Li , Jianliang Gao , Yingchun Ye , Rujing Yao

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

Despite impressive results of language models for named entity recognition (NER), their generalization to varied textual genres, a growing entity type set, and new entities remains a challenge. Collecting thousands of annotations in each…

计算与语言 · 计算机科学 2022-04-28 Elena V. Epure , Romain Hennequin

Named Entity Recognition (NER) is a fundamental task in natural language processing that involves identifying and classifying named entities in text. But much work hasn't been done for complex named entity recognition in Bangla, despite…

计算与语言 · 计算机科学 2023-03-20 HAZ Sameen Shahgir , Ramisa Alam , Md. Zarif Ul Alam

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