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We study the open-domain named entity recognition (NER) problem under distant supervision. The distant supervision, though does not require large amounts of manual annotations, yields highly incomplete and noisy distant labels via external…

Computation and Language · Computer Science 2020-06-30 Chen Liang , Yue Yu , Haoming Jiang , Siawpeng Er , Ruijia Wang , Tuo Zhao , Chao Zhang

Named entity recognition (NER) systems that perform well require task-related and manually annotated datasets. However, they are expensive to develop, and are thus limited in size. As there already exists a large number of NER datasets that…

Computation and Language · Computer Science 2019-04-23 Nargiza Nosirova , Mingbin Xu , Hui Jiang

As a fundamental natural language processing task and one of core knowledge extraction techniques, named entity recognition (NER) is widely used to extract information from texts for downstream tasks. Nested NER is a branch of NER in which…

Computation and Language · Computer Science 2022-04-19 Yifei Yang , Zuchao Li , Hai Zhao

Named entity recognition (NER) is the very first step in the linguistic processing of any new domain. It is currently a common process in BioNLP on English clinical text. However, it is still in its infancy in other major languages, as it…

Computation and Language · Computer Science 2019-12-20 Fernando Sánchez León , Ana González Ledesma

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…

Computation and Language · Computer Science 2022-12-08 Arjun Choudhry , Pankaj Gupta , Inder Khatri , Aaryan Gupta , Maxime Nicol , Marie-Jean Meurs , Dinesh Kumar Vishwakarma

We study the problem of named entity recognition (NER) from electronic medical records, which is one of the most fundamental and critical problems for medical text mining. Medical records which are written by clinicians from different…

Computation and Language · Computer Science 2018-05-01 Zhenghui Wang , Yanru Qu , Liheng Chen , Jian Shen , Weinan Zhang , Shaodian Zhang , Yimei Gao , Gen Gu , Ken Chen , Yong Yu

We propose two neural network architectures for nested named entity recognition (NER), a setting in which named entities may overlap and also be labeled with more than one label. We encode the nested labels using a linearized scheme. In our…

Computation and Language · Computer Science 2019-08-20 Jana Straková , Milan Straka , Jan Hajič

In this work, we explore the way to perform named entity recognition (NER) using only unlabeled data and named entity dictionaries. To this end, we formulate the task as a positive-unlabeled (PU) learning problem and accordingly propose a…

Computation and Language · Computer Science 2019-06-12 Minlong Peng , Xiaoyu Xing , Qi Zhang , Jinlan Fu , Xuanjing Huang

Cross-domain named entity recognition (NER) models are able to cope with the scarcity issue of NER samples in target domains. However, most of the existing NER benchmarks lack domain-specialized entity types or do not focus on a certain…

Computation and Language · Computer Science 2020-12-15 Zihan Liu , Yan Xu , Tiezheng Yu , Wenliang Dai , Ziwei Ji , Samuel Cahyawijaya , Andrea Madotto , Pascale Fung

Domain-specific named entity recognition (NER) on Computer Science (CS) scholarly articles is an information extraction task that is arguably more challenging for the various annotation aims that can beset the task and has been less studied…

Computation and Language · Computer Science 2022-11-15 Jennifer D'Souza , Sören Auer

Recently, neural methods have achieved state-of-the-art (SOTA) results in Named Entity Recognition (NER) tasks for many languages without the need for manually crafted features. However, these models still require manually annotated…

Computation and Language · Computer Science 2019-11-25 M Saiful Bari , Shafiq Joty , Prathyusha Jwalapuram

Developing high-performance entity normalization algorithms that can alleviate the term variation problem is of great interest to the biomedical community. Although deep learning-based methods have been successfully applied to biomedical…

Information Retrieval · Computer Science 2019-08-12 Zongcheng Ji , Qiang Wei , Hua Xu

Named Entity Recognition (NER) is an essential precursor task for many natural language applications, such as relation extraction or event extraction. Much of the NER research has been done on datasets with few classes of entity types (e.g.…

Computation and Language · Computer Science 2020-09-17 Parul Awasthy , Taesun Moon , Jian Ni , Radu Florian

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…

Computation and Language · Computer Science 2017-03-09 Isabelle Augenstein , Leon Derczynski , Kalina Bontcheva

Named entity recognition (NER) is the process of recognising and classifying important information (entities) in text. Proper nouns, such as a person's name, an organization's name, or a location's name, are examples of entities. The NER is…

Computation and Language · Computer Science 2023-02-28 Onkar Litake , Maithili Sabane , Parth Patil , Aparna Ranade , Raviraj Joshi

By using deep learning approaches, Speech Emotion Recog-nition (SER) on a single domain has achieved many excellentresults. However, cross-domain SER is still a challenging taskdue to the distribution shift between source and target…

Audio and Speech Processing · Electrical Eng. & Systems 2020-12-22 Xiong Cai , Zhiyong Wu , Kuo Zhong , Bin Su , Dongyang Dai , Helen Meng

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…

Computation and Language · Computer Science 2026-05-19 Mei Jia

Named-entities are inherently multilingual, and annotations in any given language may be limited. This motivates us to consider polyglot named-entity recognition (NER), where one model is trained using annotated data drawn from more than…

Computation and Language · Computer Science 2020-05-05 David Mueller , Nicholas Andrews , Mark Dredze

We study the problem of training named entity recognition (NER) models using only distantly-labeled data, which can be automatically obtained by matching entity mentions in the raw text with entity types in a knowledge base. The biggest…

Computation and Language · Computer Science 2021-09-13 Yu Meng , Yunyi Zhang , Jiaxin Huang , Xuan Wang , Yu Zhang , Heng Ji , Jiawei Han

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 in correctly detecting and classifying entities,…

Information Retrieval · Computer Science 2018-09-07 Diego Esteves