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In this report, we describe our participant named-entity recognition system at VLSP 2018 evaluation campaign. We formalized the task as a sequence labeling problem using BIO encoding scheme. We applied a feature-based model which combines…

Computation and Language · Computer Science 2018-03-23 Pham Quang Nhat Minh

Named entity recognition (NER) for identifying proper nouns in unstructured text is one of the most important and fundamental tasks in natural language processing. However, despite the widespread use of NER models, they still require a…

Computation and Language · Computer Science 2020-12-23 Zhifeng Hao , Di Lv , Zijian Li , Ruichu Cai , Wen Wen , Boyan Xu

Nested named entity recognition (NER) aims to identify the entity boundaries and recognize categories of the named entities in a complex hierarchical sentence. Some works have been done using character-level, word-level, or lexicon-level…

Computation and Language · Computer Science 2022-11-08 Yuan Sui , Fanyang Bu , Yingting Hu , Wei Yan , Liang Zhang

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

We propose a new Named entity recognition (NER) method to effectively make use of the results of Part-of-speech (POS) tagging, Chinese word segmentation (CWS) and parsing while avoiding NER error caused by POS tagging error. This paper…

Computation and Language · Computer Science 2021-01-28 Xiao Fu , Guijun Zhang

Traditional named entity recognition (NER) aims to identify text mentions into pre-defined entity types. Continual Named Entity Recognition (CNER) is introduced since entity categories are continuously increasing in various real-world…

Computation and Language · Computer Science 2025-10-14 Yawen Yang , Fukun Ma , Shiao Meng , Aiwei Liu , Lijie Wen

In this work, we address the NER problem by splitting it into two logical sub-tasks: (1) Span Detection which simply extracts entity mention spans irrespective of entity type; (2) Span Classification which classifies the spans into their…

Computation and Language · Computer Science 2023-11-01 Jatin Arora , Youngja Park

For several purposes in Natural Language Processing (NLP), such as Information Extraction, Sentiment Analysis or Chatbot, Named Entity Recognition (NER) holds an important role as it helps to determine and categorize entities in text into…

Computation and Language · Computer Science 2020-03-24 Thong Nguyen , Duy Nguyen , Pramod Rao

Named Entity Recognition (NER) is an important task in natural language processing that aims to identify and extract key entities from unstructured text. We present a novel application of NER in plasma physics research articles and address…

Computation and Language · Computer Science 2026-02-13 Muhammad Haris , Hans Höft , Markus M. Becker , Markus Stocker

Speech Entity Linking aims to recognize and disambiguate named entities in spoken languages. Conventional methods suffer gravely from the unfettered speech styles and the noisy transcripts generated by ASR systems. In this paper, we propose…

Computation and Language · Computer Science 2022-09-30 Shen Huang , Yuchen Zhai , Xinwei Long , Yong Jiang , Xiaobin Wang , Yin Zhang , Pengjun Xie

Named entity recognition (NER) is the task to identify mentions of rigid designators from text belonging to predefined semantic types such as person, location, organization etc. NER always serves as the foundation for many natural language…

Computation and Language · Computer Science 2023-04-26 Jing Li , Aixin Sun , Jianglei Han , Chenliang Li

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…

Computation and Language · Computer Science 2019-08-12 Joseph Fisher , Andreas Vlachos

Recurrent Neural Network models are the state-of-the-art for Named Entity Recognition (NER). We present two innovations to improve the performance of these models. The first innovation is the introduction of residual connections between the…

Computation and Language · Computer Science 2017-07-12 Quan Tran , Andrew MacKinlay , Antonio Jimeno Yepes

Recent years have seen the paradigm shift of Named Entity Recognition (NER) systems from sequence labeling to span prediction. Despite its preliminary effectiveness, the span prediction model's architectural bias has not been fully…

Computation and Language · Computer Science 2021-06-08 Jinlan Fu , Xuanjing Huang , Pengfei Liu

Named entity recognition (NER) aims to identify mentions of named entities in an unstructured text and classify them into predefined named entity classes. While deep learning-based pre-trained language models help to achieve good predictive…

Computation and Language · Computer Science 2023-06-16 Ali Osman Berk Sapci , Oznur Tastan , Reyyan Yeniterzi

In the domain of Natural Language Processing (NLP), Named Entity Recognition (NER) stands out as a pivotal mechanism for extracting structured insights from unstructured text. This manuscript offers an exhaustive exploration into the…

Computation and Language · Computer Science 2023-09-26 Kalyani Pakhale

Named Entity Recognition (NER) is a fundamental task in natural language processing. It remains a research hotspot due to its wide applicability across domains. Although recent advances in deep learning have significantly improved NER…

Computation and Language · Computer Science 2025-08-12 Xiaobo Zhang , Congqing He , Ying He , Jian Peng , Dajie Fu , Tien-Ping Tan

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…

Computation and Language · Computer Science 2021-07-21 Huiqiang Jiang , Guoxin Wang , Weile Chen , Chengxi Zhang , Börje F. Karlsson

Few-shot named entity recognition (NER) aims to recognize novel named entities in low-resource domains utilizing existing knowledge. However, the present few-shot NER models assume that the labeled data are all clean without noise or…

Computation and Language · Computer Science 2023-12-14 Xiaojun Xue , Chunxia Zhang , Tianxiang Xu , Zhendong Niu

The task of named entity recognition (NER) is normally divided into nested NER and flat NER depending on whether named entities are nested or not. Models are usually separately developed for the two tasks, since sequence labeling models,…

Computation and Language · Computer Science 2022-11-23 Xiaoya Li , Jingrong Feng , Yuxian Meng , Qinghong Han , Fei Wu , Jiwei Li