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One of the major challenges in coreference resolution is how to make use of entity-level features defined over clusters of mentions rather than mention pairs. However, coreferent mentions usually spread far apart in an entire text, which…

计算与语言 · 计算机科学 2023-07-25 Lu Liu , Zhenqiao Song , Xiaoqing Zheng , Jun He

Named Entity Recognition (NER) is a fundamental task in NLP that is used to locate the key information in text and is primarily applied in conversational and search systems. In commercial applications, NER or comparable slot-filling methods…

计算与语言 · 计算机科学 2023-06-13 Maithili Sabane , Aparna Ranade , Onkar Litake , Parth Patil , Raviraj Joshi , Dipali Kadam

Named Entity Recognition (NER) is the task of identifying spans that represent entities in sentences. Whether the entity spans are nested or discontinuous, the NER task can be categorized into the flat NER, nested NER, and discontinuous NER…

计算与语言 · 计算机科学 2021-06-03 Hang Yan , Tao Gui , Junqi Dai , Qipeng Guo , Zheng Zhang , Xipeng Qiu

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

Named Entity Recognition (NER) involves identifying and categorizing named entities within textual data. Despite its significance, NER research has often overlooked low-resource languages like Myanmar (Burmese), primarily due to the lack of…

计算与语言 · 计算机科学 2025-04-08 Kaung Lwin Thant , Kwankamol Nongpong , Ye Kyaw Thu , Thura Aung , Khaing Hsu Wai , Thazin Myint Oo

The state-of-the-art named entity recognition (NER) systems are statistical machine learning models that have strong generalization capability (i.e., can recognize unseen entities that do not appear in training data) based on lexical and…

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

Named entity recognition (NER) is one of the best studied tasks in natural language processing. However, most approaches are not capable of handling nested structures which are common in many applications. In this paper we introduce a novel…

计算与语言 · 计算机科学 2019-08-12 Joseph Fisher , Andreas Vlachos

Biomedical named entity recognition (NER) and entity linking (EL) strongly depend on annotated corpora, but the utility of these resources for benchmarking is often assumed rather than characterized. We present a corpus-centric framework…

计算与语言 · 计算机科学 2026-05-21 Robert Leaman , Rezarta Islamaj , Zhiyong Lu

We propose a novel approach for cross-lingual Named Entity Recognition (NER) zero-shot transfer using parallel corpora. We built an entity alignment model on top of XLM-RoBERTa to project the entities detected on the English part of the…

计算与语言 · 计算机科学 2021-01-28 Bing Li , Yujie He , Wenjin Xu

Named Entity Recognition (NER) is a fundamental task in Natural Language Processing (NLP) that plays a crucial role in information extraction, question answering, and knowledge-based systems. Traditional deep learning-based NER models often…

计算与语言 · 计算机科学 2025-03-21 Heming Zhang , Wenyu Li , Di Huang , Yinjie Tang , Yixin Chen , Philip Payne , Fuhai Li

Named Entity Recognition (NER) aims at locating and classifying named entities in text. In some use cases of NER, including cases where detected named entities are used in creating content recommendations, it is crucial to have a reliable…

神经与进化计算 · 计算机科学 2017-12-07 Mahdi Namazifar

The recognition and classification of Named Entities (NER) are regarded as an important component for many Natural Language Processing (NLP) applications. The classification is usually made by taking into account the immediate context in…

计算与语言 · 计算机科学 2010-04-01 Claude Martineau , Elsa Tolone , Stavroula Voyatzi

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…

计算与语言 · 计算机科学 2023-12-27 Fahime Shahrokh , Nasser Ghadiri , Rasoul Samani , Milad Moradi

Identifying named entities is, in general, a practical and challenging task in the field of Natural Language Processing. Named Entity Recognition on the code-mixed text is further challenging due to the linguistic complexity resulting from…

计算与语言 · 计算机科学 2022-06-16 Suman Dowlagar , Radhika Mamidi

Research on overlapped and discontinuous named entity recognition (NER) has received increasing attention. The majority of previous work focuses on either overlapped or discontinuous entities. In this paper, we propose a novel span-based…

计算与语言 · 计算机科学 2021-06-29 Fei Li , Zhichao Lin , Meishan Zhang , Donghong Ji

Text segmentation is important for signaling a document's structure. Without segmenting a long document into topically coherent sections, it is difficult for readers to comprehend the text, let alone find important information. The problem…

计算与语言 · 计算机科学 2022-11-01 Sangwoo Cho , Kaiqiang Song , Xiaoyang Wang , Fei Liu , Dong Yu

This paper presents a novel framework, MGNER, for Multi-Grained Named Entity Recognition where multiple entities or entity mentions in a sentence could be non-overlapping or totally nested. Different from traditional approaches regarding…

计算与语言 · 计算机科学 2020-04-06 Congying Xia , Chenwei Zhang , Tao Yang , Yaliang Li , Nan Du , Xian Wu , Wei Fan , Fenglong Ma , Philip Yu

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…

计算与语言 · 计算机科学 2022-04-29 Abdellah El Mekki , Abdelkader El Mahdaouy , Mohammed Akallouch , Ismail Berrada , Ahmed Khoumsi

Recently, due to the increasing popularity of social media, the necessity for extracting information from informal text types, such as microblog texts, has gained significant attention. In this study, we focused on the Named Entity…

计算与语言 · 计算机科学 2018-10-23 Eda Okur , Hakan Demir , Arzucan Özgür

We present a new corpus comprising annotations of medical entities in case reports, originating from PubMed Central's open access library. In the case reports, we annotate cases, conditions, findings, factors and negation modifiers.…

计算与语言 · 计算机科学 2020-03-31 Sarah Schulz , Jurica Ševa , Samuel Rodriguez , Malte Ostendorff , Georg Rehm