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Named entity recognition (NER) is one of the tasks in natural language processing that can greatly benefit from the use of external knowledge sources. We propose a named entity recognition framework composed of knowledge-based feature…

计算与语言 · 计算机科学 2019-06-07 Sławomir Dadas

Named entity recognition (NER) has been one of the essential preliminary steps in modern NLP applications. This report focuses on implementing the NER task on finetuning two pretrained models: (i) an encoder-only model (BERT) with a simple…

计算与语言 · 计算机科学 2026-05-19 Mei Jia

Traditional information retrieval treats named entity recognition as a pre-indexing corpus annotation task, allowing entity tags to be indexed and used during search. Named entity taggers themselves are typically trained on thousands or…

信息检索 · 计算机科学 2018-06-14 John Foley , Sheikh Muhammad Sarwar , James Allan

State of the art Named Entity Recognition (NER) models have achieved an impressive ability to extract common phrases from text that belong to labels such as location, organization, time, and person. However, typical NER systems that rely on…

计算与语言 · 计算机科学 2024-01-24 Alexandra Loessberg-Zahl

Recent advances in deep neural models allow us to build reliable named entity recognition (NER) systems without handcrafting features. However, such methods require large amounts of manually-labeled training data. There have been efforts on…

计算与语言 · 计算机科学 2018-09-12 Jingbo Shang , Liyuan Liu , Xiang Ren , Xiaotao Gu , Teng Ren , Jiawei Han

Named entity recognition is a fundamental task in natural language processing, identifying the span and category of entities in unstructured texts. The traditional sequence labeling methodology ignores the nested entities, i.e. entities…

计算与语言 · 计算机科学 2022-10-24 Xueru Wen , Changjiang Zhou , Haotian Tang , Luguang Liang , Yu Jiang , Hong Qi

Despite advancements of end-to-end (E2E) models in speech recognition, named entity recognition (NER) is still challenging but critical for semantic understanding. Previous studies mainly focus on various rule-based or attention-based…

音频与语音处理 · 电气工程与系统科学 2024-06-11 Peng Wang , Yifan Yang , Zheng Liang , Tian Tan , Shiliang Zhang , Xie Chen

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

This paper introduces an approach for building a Named Entity Recognition (NER) model built upon a Bidirectional Encoder Representations from Transformers (BERT) architecture, specifically utilizing the SlovakBERT model. This NER model…

计算与语言 · 计算机科学 2024-02-09 Bibiána Lajčinová , Patrik Valábek , Michal Spišiak

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…

Current state-of-the-art models for named entity recognition (NER) are neural models with a conditional random field (CRF) as the final layer. Entities are represented as per-token labels with a special structure in order to decode them…

计算与语言 · 计算机科学 2020-10-12 Brian Lester , Daniel Pressel , Amy Hemmeter , Sagnik Ray Choudhury , Srinivas Bangalore

Named Entity Recognition (NER) is a fundamental problem in natural language processing (NLP). However, the task of extracting longer entity spans (e.g., awards) from extended texts (e.g., homepages) is barely explored. Current NER methods…

计算与语言 · 计算机科学 2025-02-12 Yelin Chen , Fanjin Zhang , Jie Tang

In many scenarios, named entity recognition (NER) models severely suffer from unlabeled entity problem, where the entities of a sentence may not be fully annotated. Through empirical studies performed on synthetic datasets, we find two…

计算与语言 · 计算机科学 2021-03-19 Yangming Li , Lemao Liu , Shuming Shi

Named Entity Recognition (NER) is a fundamental Natural Language Processing (NLP) task to extract entities from unstructured data. The previous methods for NER were based on machine learning or deep learning. Recently, pre-training models…

计算与语言 · 计算机科学 2020-02-21 Yu Wang , Yining Sun , Zuchang Ma , Lisheng Gao , Yang Xu , Ting Sun

So far, named entity recognition (NER) has been involved with three major types, including flat, overlapped (aka. nested), and discontinuous NER, which have mostly been studied individually. Recently, a growing interest has been built for…

计算与语言 · 计算机科学 2021-12-21 Jingye Li , Hao Fei , Jiang Liu , Shengqiong Wu , Meishan Zhang , Chong Teng , Donghong Ji , Fei Li

Named Entity Recognition (NER) is the task of identifying and classifying named entities in unstructured text. In the legal domain, named entities of interest may include the case parties, judges, names of courts, case numbers, references…

计算与语言 · 计算机科学 2020-12-21 Stavroula Skylaki , Ali Oskooei , Omar Bari , Nadja Herger , Zac Kriegman

It is common that entity mentions can contain other mentions recursively. This paper introduces a scalable transition-based method to model the nested structure of mentions. We first map a sentence with nested mentions to a designated…

计算与语言 · 计算机科学 2018-10-04 Bailin Wang , Wei Lu , Yu Wang , Hongxia Jin

Named Entity Recognition (NER) systems play a vital role in NLP applications such as machine translation, summarization, and question-answering. These systems identify named entities, which encompass real-world concepts like locations,…

计算与语言 · 计算机科学 2023-12-05 Harsh Chaudhari , Anuja Patil , Dhanashree Lavekar , Pranav Khairnar , Raviraj Joshi , Sachin Pande

A large amount of information in today's world is now stored in knowledge bases. Named Entity Recognition (NER) is a process of extracting, disambiguation, and linking an entity from raw text to insightful and structured knowledge bases.…

计算与语言 · 计算机科学 2024-11-11 Monica Munnangi

Nested entities are observed in many domains due to their compositionality, which cannot be easily recognized by the widely-used sequence labeling framework. A natural solution is to treat the task as a span classification problem. To learn…

计算与语言 · 计算机科学 2022-04-05 Zheng Yuan , Chuanqi Tan , Songfang Huang , Fei Huang