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Entities lie in the heart of biomedical natural language understanding, and the biomedical entity linking (EL) task remains challenging due to the fine-grained and diversiform concept names. Generative methods achieve remarkable…

Computation and Language · Computer Science 2022-05-24 Hongyi Yuan , Zheng Yuan , Sheng Yu

Named entity recognition (NER) for identifying proper nouns in unstructured text is one of the most important and fundamental tasks in natural language processing. However, despite the widespread use of NER models, they still require a…

Computation and Language · Computer Science 2020-12-23 Zhifeng Hao , Di Lv , Zijian Li , Ruichu Cai , Wen Wen , Boyan Xu

Named entity linking is to map an ambiguous mention in documents to an entity in a knowledge base. The named entity linking is challenging, given the fact that there are multiple candidate entities for a mention in a document. It is…

Computation and Language · Computer Science 2020-02-13 Wei Shi , Siyuan Zhang , Zhiwei Zhang , Hong Cheng , Jeffrey Xu Yu

There are two approaches for pairwise sentence scoring: Cross-encoders, which perform full-attention over the input pair, and Bi-encoders, which map each input independently to a dense vector space. While cross-encoders often achieve higher…

Computation and Language · Computer Science 2021-04-13 Nandan Thakur , Nils Reimers , Johannes Daxenberger , Iryna Gurevych

In the domain of Natural Language Processing (NLP), Named Entity Recognition (NER) stands out as a pivotal mechanism for extracting structured insights from unstructured text. This manuscript offers an exhaustive exploration into the…

Computation and Language · Computer Science 2023-09-26 Kalyani Pakhale

There are a few challenges related to the task of biomedical named entity recognition, which are: the existing methods consider a fewer number of biomedical entities (e.g., disease, symptom, proteins, genes); and these methods do not…

Computation and Language · Computer Science 2022-07-05 Shaina Raza , Brian Schwartz

Clinical named entity recognition (NER) aims to retrieve important entities within clinical narratives. Recent works have demonstrated that large language models (LLMs) can achieve strong performance in this task. While previous works focus…

Computation and Language · Computer Science 2025-02-21 Reza Averly , Xia Ning

In Biomedical Natural Language Processing (BioNLP) tasks, such as Relation Extraction, Named Entity Recognition, and Text Classification, the scarcity of high-quality data remains a significant challenge. This limitation poisons large…

Computation and Language · Computer Science 2025-04-01 Zhengyi Zhao , Shubo Zhang , Bin Liang , Binyang Li , Kam-Fai Wong

The growth rate in the amount of biomedical documents is staggering. Unlocking information trapped in these documents can enable researchers and practitioners to operate confidently in the information world. Biomedical NER, the task of…

Computation and Language · Computer Science 2021-06-24 Xiang Dai

We consider the problem of Named Entity Recognition (NER) on biomedical scientific literature, and more specifically the genomic variants recognition in this work. Significant success has been achieved for NER on canonical tasks in recent…

Computation and Language · Computer Science 2020-06-16 Chaoran Cheng , Fei Tan , Zhi Wei

The success of bidirectional encoders using masked language models, such as BERT, on numerous natural language processing tasks has prompted researchers to attempt to incorporate these pre-trained models into neural machine translation…

Computation and Language · Computer Science 2021-09-13 Haoran Xu , Benjamin Van Durme , Kenton Murray

Named entity recognition (NER) is a fundamental component in many applications, such as Web Search and Voice Assistants. Although deep neural networks greatly improve the performance of NER, due to the requirement of large amounts of…

Computation and Language · Computer Science 2021-06-02 Shining Liang , Ming Gong , Jian Pei , Linjun Shou , Wanli Zuo , Xianglin Zuo , Daxin Jiang

This paper presents a framework for Named Entity Recognition (NER) leveraging the Bidirectional Encoder Representations from Transformers (BERT) model in natural language processing (NLP). NER is a fundamental task in NLP with broad…

Computation and Language · Computer Science 2025-05-06 Mo Sun , Siheng Xiong , Yuankai Cai , Bowen Zuo

Lexical normalisation (LN) is the process of correcting each word in a dataset to its canonical form so that it may be more easily and more accurately analysed. Most lexical normalisation systems operate at the character-level, while…

Computation and Language · Computer Science 2019-11-15 Michael Stewart , Wei Liu , Rachel Cardell-Oliver

Relation classification is an important NLP task to extract relations between entities. The state-of-the-art methods for relation classification are primarily based on Convolutional or Recurrent Neural Networks. Recently, the pre-trained…

Computation and Language · Computer Science 2019-05-22 Shanchan Wu , Yifan He

Named Entity Recognition (NER) is a machine learning task that traditionally relies on supervised learning and annotated data. Acquiring such data is often a challenge, particularly in specialized fields like medical, legal, and financial…

Computation and Language · Computer Science 2026-04-01 Arthur Elwing Torres , Edleno Silva de Moura , Altigran Soares da Silva , Mario A. Nascimento , Filipe Mesquita

Spurious correlations can cause strong biases in deep neural networks, impairing generalization ability. While most existing debiasing methods require full supervision on either spurious attributes or target labels, training a debiased…

Machine Learning · Computer Science 2023-10-10 Geon Yeong Park , Chanyong Jung , Sangmin Lee , Jong Chul Ye , Sang Wan Lee

Recognizing named entities (NEs) is commonly conducted as a classification problem that predicts a class tag for a word or a NE candidate in a sentence. In shallow structures, categorized features are weighted to support the prediction.…

Computation and Language · Computer Science 2022-02-01 Yanping Chen , Lefei Wu , Qinghua Zheng , Ruizhang Huang , Jun Liu , Liyuan Deng , Junhui Yu , Yongbin Qing , Bo Dong , Ping Chen

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

Clinical trials (CTs) often fail due to inadequate patient recruitment. This paper tackles the challenges of CT retrieval by presenting an approach that addresses the patient-to-trials paradigm. Our approach involves two key components in a…

Information Retrieval · Computer Science 2023-07-04 Wojciech Kusa , Óscar E. Mendoza , Petr Knoth , Gabriella Pasi , Allan Hanbury