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We present a bi-encoder framework for named entity recognition (NER), which applies contrastive learning to map candidate text spans and entity types into the same vector representation space. Prior work predominantly approaches NER as…

Computation and Language · Computer Science 2023-02-24 Sheng Zhang , Hao Cheng , Jianfeng Gao , Hoifung Poon

Named entity recognition (NER) is widely used in natural language processing applications and downstream tasks. However, most NER tools target flat annotation from popular datasets, eschewing the semantic information available in nested…

Computation and Language · Computer Science 2019-06-05 Nicky Ringland , Xiang Dai , Ben Hachey , Sarvnaz Karimi , Cecile Paris , James R. Curran

Named-entity recognition (NER) is a task that typically requires large annotated datasets, which limits its applicability across domains with varying entity definitions. This paper addresses few-shot NER, aiming to transfer knowledge to new…

Computation and Language · Computer Science 2024-12-13 Ayoub Hammal , Benno Uthayasooriyar , Caio Corro

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

In this paper, we present our approach to extracting structured information from unstructured Electronic Health Records (EHR) [2] which can be used to, for example, study adverse drug reactions in patients due to chemicals in their…

Computation and Language · Computer Science 2020-01-30 Amogh Kamat Tarcar , Aashis Tiwari , Vineet Naique Dhaimodker , Penjo Rebelo , Rahul Desai , Dattaraj Rao

Semi-supervised text classification-based paradigms (SSTC) typically employ the spirit of self-training. The key idea is to train a deep classifier on limited labeled texts and then iteratively predict the unlabeled texts as their…

Computation and Language · Computer Science 2023-06-14 Ahmed Murtadha , Shengfeng Pan , Wen Bo , Jianlin Su , Xinxin Cao , Wenze Zhang , Yunfeng Liu

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.…

Computation and Language · Computer Science 2024-11-11 Monica Munnangi

Ever-larger language models with ever-increasing capabilities are by now well-established text processing tools. Alas, information extraction tasks such as named entity recognition are still largely unaffected by this progress as they are…

Computation and Language · Computer Science 2023-08-16 Tobias Deußer , Lars Hillebrand , Christian Bauckhage , Rafet Sifa

The state-of-the-art named entity recognition (NER) systems are statistical machine learning models that have strong generalization capability (i.e., can recognize unseen entities that do not appear in training data) based on lexical and…

Computation and Language · Computer Science 2019-11-04 Jian Ni , Radu Florian

Despite the huge and continuous advances in computational linguistics, the lack of annotated data for Named Entity Recognition (NER) is still a challenging issue, especially in low-resource languages and when domain knowledge is required…

Computation and Language · Computer Science 2021-11-25 Valerio La Gatta , Vincenzo Moscato , Marco Postiglione , Giancarlo Sperlì

Active learning, a widely adopted technique for enhancing machine learning models in text and image classification tasks with limited annotation resources, has received relatively little attention in the domain of Named Entity Recognition…

Computation and Language · Computer Science 2023-11-03 Haocheng Luo , Wei Tan , Ngoc Dang Nguyen , Lan Du

Named Entity Recognition (NER) or the extraction of concepts from clinical text is the task of identifying entities in text and slotting them into categories such as problems, treatments, tests, clinical departments, occurrences (such as…

Computation and Language · Computer Science 2022-08-31 Namrata Nath , Sang-Heon Lee , Ivan Lee

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

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

We present a novel approach to named entity recognition (NER) in the presence of scarce data that we call example-based NER. Our train-free few-shot learning approach takes inspiration from question-answering to identify entity spans in a…

Computation and Language · Computer Science 2020-08-25 Morteza Ziyadi , Yuting Sun , Abhishek Goswami , Jade Huang , Weizhu Chen

In this paper, we propose a new strategy for the task of named entity recognition (NER). We cast the task as a query-based machine reading comprehension task: e.g., the task of extracting entities with PER is formalized as answering the…

Computation and Language · Computer Science 2019-11-05 Yuxian Meng , Xiaoya Li , Zijun Sun , Jiwei Li

Named Entity Recognition (NER) is a critical component of Natural Language Processing with diverse applications in information extraction and conversational AI. However, NER in specific domains for low-resource languages faces challenges…

Computational Engineering, Finance, and Science · Computer Science 2026-05-07 Do Minh Duc , Quan Xuan Truong , Viet Tran Hong , Le Hoang Anh , Mac Thi Minh Tra , Nguyen Van Thuy , Le Hai Ha , Vinh Nguyen Van

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

Named Entity Recognition is an information extraction task that serves as a preprocessing step for other natural language processing tasks, such as machine translation, information retrieval, and question answering. Named entity recognition…

Computation and Language · Computer Science 2022-07-05 Ebrahim Chekol Jibril , A. Cüneyd Tantğ

In this work, we study the problem of named entity recognition (NER) in a low resource scenario, focusing on few-shot and zero-shot settings. Built upon large-scale pre-trained language models, we propose a novel NER framework, namely…

Computation and Language · Computer Science 2021-09-14 Yaqing Wang , Haoda Chu , Chao Zhang , Jing Gao