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Named Entity Recognition (NER) is a fundamental task in Natural Language Processing, concerned with identifying spans of text expressing references to entities. NER research is often focused on flat entities only (flat NER), ignoring the…

Computation and Language · Computer Science 2020-06-16 Juntao Yu , Bernd Bohnet , Massimo Poesio

Clinical Named Entity Recognition (CNER) aims to identify and classify clinical terms such as diseases, symptoms, treatments, exams, and body parts in electronic health records, which is a fundamental and crucial task for clinical and…

Computation and Language · Computer Science 2018-04-16 Qi Wang , Yuhang Xia , Yangming Zhou , Tong Ruan , Daqi Gao , Ping He

We present a multilingual Named Entity Recognition approach based on a robust and general set of features across languages and datasets. Our system combines shallow local information with clustering semi-supervised features induced on large…

Computation and Language · Computer Science 2017-02-03 Rodrigo Agerri , German Rigau

Named entity recognition (NER) models are typically based on the architecture of Bi-directional LSTM (BiLSTM). The constraints of sequential nature and the modeling of single input prevent the full utilization of global information from…

Computation and Language · Computer Science 2019-11-20 Ying Luo , Fengshun Xiao , Hai Zhao

For languages with no annotated resources, unsupervised transfer of natural language processing models such as named-entity recognition (NER) from resource-rich languages would be an appealing capability. However, differences in words and…

Computation and Language · Computer Science 2018-09-13 Jiateng Xie , Zhilin Yang , Graham Neubig , Noah A. Smith , Jaime Carbonell

Pre-trained language models (PLM) are effective components of few-shot named entity recognition (NER) approaches when augmented with continued pre-training on task-specific out-of-domain data or fine-tuning on in-domain data. However, their…

Computation and Language · Computer Science 2022-04-12 Yuxuan Chen , Jonas Mikkelsen , Arne Binder , Christoph Alt , Leonhard Hennig

This paper presents a multi-way parallel English-Tamil-Sinhala corpus annotated with Named Entities (NEs), where Sinhala and Tamil are low-resource languages. Using pre-trained multilingual Language Models (mLMs), we establish new benchmark…

Computation and Language · Computer Science 2025-01-16 Surangika Ranathunga , Asanka Ranasinghea , Janaka Shamala , Ayodya Dandeniyaa , Rashmi Galappaththia , Malithi Samaraweeraa

Although modern named entity recognition (NER) systems show impressive performance on standard datasets, they perform poorly when presented with noisy data. In particular, capitalization is a strong signal for entities in many languages,…

Computation and Language · Computer Science 2019-12-17 Stephen Mayhew , Nitish Gupta , Dan Roth

In this paper, we study the named entity recognition (NER) problem under distant supervision. Due to the incompleteness of the external dictionaries and/or knowledge bases, such distantly annotated training data usually suffer from a high…

Computation and Language · Computer Science 2022-04-21 Kang Zhou , Yuepei Li , Qi Li

The aim of Named Entity Recognition (NER) is to identify references of named entities in unstructured documents, and to classify them into pre-defined semantic categories. NER often aids from added background knowledge in the form of…

Computation and Language · Computer Science 2015-11-24 S. Thenmalar , J. Balaji , T. V. Geetha

Sentiment analysis is a process widely used in opinion mining campaigns conducted today. This phenomenon presents applications in a variety of fields, especially in collecting information related to the attitude or satisfaction of users…

Computation and Language · Computer Science 2020-09-08 George-Eduard Zaharia , George-Alexandru Vlad , Dumitru-Clementin Cercel , Traian Rebedea , Costin-Gabriel Chiru

We cast nested named entity recognition (NNER) as a sequence labeling task by leveraging prior work that linearizes constituency structures, effectively reducing the complexity of this structured prediction problem to straightforward token…

Computation and Language · Computer Science 2025-09-30 Alberto Muñoz-Ortiz , David Vilares , Caio Corro , Carlos Gómez-Rodríguez

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

Named entity recognition (NER) is a vital task in spoken language understanding, which aims to identify mentions of named entities in text e.g., from transcribed speech. Existing neural models for NER rely mostly on dedicated word-level…

Computation and Language · Computer Science 2019-09-24 Abdalghani Abujabal , Judith Gaspers

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…

Computation and Language · Computer Science 2021-06-03 Hang Yan , Tao Gui , Junqi Dai , Qipeng Guo , Zheng Zhang , Xipeng Qiu

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…

Computation and Language · Computer Science 2020-04-06 Congying Xia , Chenwei Zhang , Tao Yang , Yaliang Li , Nan Du , Xian Wu , Wei Fan , Fenglong Ma , Philip Yu

One of the main tasks of Natural Language Processing (NLP), is Named Entity Recognition (NER). It is used in many applications and also can be used as an intermediate step for other tasks. We present ANER, a web-based named entity…

Computation and Language · Computer Science 2023-08-30 Abdelrahman "Boda" Sadallah , Omar Ahmed , Shimaa Mohamed , Omar Hatem , Doaa Hesham , Ahmed H. Yousef

The availability of large amounts of computer-readable textual data and hardware that can process the data has shifted the focus of knowledge projects towards deep learning architecture. Natural Language Processing, particularly the task of…

Computation and Language · Computer Science 2021-01-28 Arya Roy

Named Entity Recognition (NER) from social media posts is a challenging task. User generated content that forms the nature of social media, is noisy and contains grammatical and linguistic errors. This noisy content makes it much harder for…

Computation and Language · Computer Science 2021-09-16 Meysam Asgari-Chenaghlu , M. Reza Feizi-Derakhshi , Leili Farzinvash , M. A. Balafar , Cina Motamed

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…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-11 Peng Wang , Yifan Yang , Zheng Liang , Tian Tan , Shiliang Zhang , Xie Chen