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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

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…

计算与语言 · 计算机科学 2023-12-14 Xiaojun Xue , Chunxia Zhang , Tianxiang Xu , Zhendong Niu

Objective: Extracting PICO elements -- Participants, Intervention, Comparison, and Outcomes -- from clinical trial literature is essential for clinical evidence retrieval, appraisal, and synthesis. Existing approaches do not distinguish the…

计算与语言 · 计算机科学 2024-12-30 Fangyi Chen , Gongbo Zhang , Yilu Fang , Yifan Peng , Chunhua Weng

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…

计算与语言 · 计算机科学 2023-11-14 Su Ah Lee , Seokjin Oh , Woohwan Jung

Few-shot named entity recognition (NER) systems recognize entities using a few labeled training examples. The general pipeline consists of a span detector to identify entity spans in text and an entity-type classifier to assign types to…

计算与语言 · 计算机科学 2024-06-21 Chang Tian , Wenpeng Yin , Dan Li , Marie-Francine Moens

Named entity recognition is a key component of Information Extraction (IE), particularly in scientific domains such as biomedicine and chemistry, where large language models (LLMs), e.g., ChatGPT, fall short. We investigate the…

计算与语言 · 计算机科学 2024-04-02 Hongyi Liu , Qingyun Wang , Payam Karisani , Heng Ji

Named entity recognition (NER) is usually developed and tested on text from well-written sources. However, in intelligent voice assistants, where NER is an important component, input to NER may be noisy because of user or speech recognition…

Named entity recognition (NER) from text has been a widely studied problem and usually extracts semantic information from text. Until now, NER from speech is mostly studied in a two-step pipeline process that includes first applying an…

计算与语言 · 计算机科学 2020-05-25 Hemant Yadav , Sreyan Ghosh , Yi Yu , Rajiv Ratn Shah

Named entity recognition is a natural language processing task to recognize and extract spans of text associated with named entities and classify them in semantic Categories. Google BERT is a deep bidirectional language model, pre-trained…

计算与语言 · 计算机科学 2020-03-20 Ehsan Taher , Seyed Abbas Hoseini , Mehrnoush Shamsfard

In the legal domain it is important to differentiate between words in general, and afterwards to link the occurrences of the same entities. The topic to solve these challenges is called Named-Entity Linking (NEL). Current supervised neural…

机器学习 · 计算机科学 2018-10-17 Ahmed Elnaggar , Robin Otto , Florian Matthes

Named entity recognition (NER) is a crucial task for online advertisement. State-of-the-art solutions leverage pre-trained language models for this task. However, three major challenges remain unresolved: web queries differ from natural…

信息检索 · 计算机科学 2023-07-03 Simiao Zuo , Pengfei Tang , Xinyu Hu , Qiang Lou , Jian Jiao , Denis Charles

Named Entity Recognition (NER) models play a crucial role in various NLP tasks, including information extraction (IE) and text understanding. In academic writing, references to machine learning models and datasets are fundamental components…

计算与语言 · 计算机科学 2023-11-17 Wolfgang Otto , Matthäus Zloch , Lu Gan , Saurav Karmakar , Stefan Dietze

While typical named entity recognition (NER) models require the training set to be annotated with all target types, each available datasets may only cover a part of them. Instead of relying on fully-typed NER datasets, many efforts have…

机器学习 · 计算机科学 2020-05-04 Shi Zhi , Liyuan Liu , Yu Zhang , Shiyin Wang , Qi Li , Chao Zhang , Jiawei Han

Spoken Named Entity Recognition (NER) aims to extract named entities from speech and categorise them into types like person, location, organization, etc. In this work, we present VietMed-NER - the first spoken NER dataset in the medical…

音频与语音处理 · 电气工程与系统科学 2025-04-03 Khai Le-Duc , David Thulke , Hung-Phong Tran , Long Vo-Dang , Khai-Nguyen Nguyen , Truong-Son Hy , Ralf Schlüter

Few-shot Named Entity Recognition (NER) aims to extract named entities using only a limited number of labeled examples. Existing contrastive learning methods often suffer from insufficient distinguishability in context vector representation…

计算与语言 · 计算机科学 2024-05-09 Haojie Zhang , Yimeng Zhuang

We present NER Retriever, a zero-shot retrieval framework for ad-hoc Named Entity Retrieval, a variant of Named Entity Recognition (NER), where the types of interest are not provided in advance, and a user-defined type description is used…

信息检索 · 计算机科学 2025-09-05 Or Shachar , Uri Katz , Yoav Goldberg , Oren Glickman

Named Entity Recognition (NER) is one of the most common tasks of the natural language processing. The purpose of NER is to find and classify tokens in text documents into predefined categories called tags, such as person names, quantity…

计算与语言 · 计算机科学 2017-10-10 L. T. Anh , M. Y. Arkhipov , M. S. Burtsev

Nested named entity recognition identifies entities contained within other entities, but requires expensive multi-level annotation. While flat NER corpora exist abundantly, nested resources remain scarce. We investigate whether models can…

计算与语言 · 计算机科学 2026-03-03 Igor Rozhkov , Natalia Loukachevitch

With the AI revolution in place, the trend for building automated systems to support professionals in different domains such as the open source software systems, healthcare systems, banking systems, transportation systems and many others…

计算与语言 · 计算机科学 2024-06-21 Somnath Banerjee , Avik Dutta , Aaditya Agrawal , Rima Hazra , Animesh Mukherjee

Supervised named entity recognition (NER) in the biomedical domain depends on large sets of annotated texts with the given named entities. The creation of such datasets can be time-consuming and expensive, while extraction of new entities…

计算与语言 · 计算机科学 2024-08-27 Miloš Košprdić , Nikola Prodanović , Adela Ljajić , Bojana Bašaragin , Nikola Milošević