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Using language models (LMs) pre-trained in a self-supervised setting on large corpora and then fine-tuning for a downstream task has helped to deal with the problem of limited label data for supervised learning tasks such as Named Entity…

Computation and Language · Computer Science 2023-08-21 Pavlova Vera , Mohammed Makhlouf

Recent unsupervised contrastive representation learning follows a Single Instance Multi-view (SIM) paradigm where positive pairs are usually constructed with intra-image data augmentation. In this paper, we propose an effective approach…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Xiangxiang Chu , Xiaohang Zhan , Bo Zhang

In recent years, short Text Matching tasks have been widely applied in the fields ofadvertising search and recommendation. The difficulty lies in the lack of semantic information and word ambiguity caused by the short length of the text.…

Computation and Language · Computer Science 2023-12-21 Ruiqiang Liu , Qiqiang Zhong , Mengmeng Cui , Hanjie Mai , Qiang Zhang , Shaohua Xu , Xiangzheng Liu , Yanlong Du

Entity linking (mapping ambiguous mentions in text to entities in a knowledge base) is a foundational step in tasks such as knowledge graph construction, question-answering, and information extraction. Our method, LELA, is a modular…

Computation and Language · Computer Science 2026-01-09 Samy Haffoudhi , Fabian M. Suchanek , Nils Holzenberger

Biomedical question answering often requires decisions from retrieved literature whose relevance, quality, and support for candidate answers are uneven. Most retrieval-augmented large language model (LLM) methods feed this literature to the…

Computation and Language · Computer Science 2026-05-19 Chang Zong , Hao Ning , Siliang Tang , Jie Huang , Jian Wan

Dense document embeddings are central to neural retrieval. The dominant paradigm is to train and construct embeddings by running encoders directly on individual documents. In this work, we argue that these embeddings, while effective, are…

Computation and Language · Computer Science 2024-11-11 John X. Morris , Alexander M. Rush

This paper presents SimCSE, a simple contrastive learning framework that greatly advances state-of-the-art sentence embeddings. We first describe an unsupervised approach, which takes an input sentence and predicts itself in a contrastive…

Computation and Language · Computer Science 2022-05-19 Tianyu Gao , Xingcheng Yao , Danqi Chen

Pre-trained language models (PLMs) were considered to be able to store relational knowledge present in the training data. However, some relational knowledge seems to be discarded unsafely in PLMs due to \textbf{report bias}: low-frequency…

Computation and Language · Computer Science 2023-05-25 Hongbo Zhang , Xiang Wan , Benyou Wang

Cross-lingual named entity recognition (CrossNER) faces challenges stemming from uneven performance due to the scarcity of multilingual corpora, especially for non-English data. While prior efforts mainly focus on data-driven transfer…

Computation and Language · Computer Science 2024-02-22 Ying Mo , Jian Yang , Jiahao Liu , Qifan Wang , Ruoyu Chen , Jingang Wang , Zhoujun Li

Entity Matching (EM), which aims to identify whether two entity records from two relational tables refer to the same real-world entity, is one of the fundamental problems in data management. Traditional EM assumes that two tables are…

Databases · Computer Science 2022-07-19 Pengfei Wang , Xiaocan Zeng , Lu Chen , Fan Ye , Yuren Mao , Junhao Zhu , Yunjun Gao

Medical datasets and especially biobanks, often contain extensive tabular data with rich clinical information in addition to images. In practice, clinicians typically have less data, both in terms of diversity and scale, but still wish to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Paul Hager , Martin J. Menten , Daniel Rueckert

There is an ongoing need for scalable tools to aid researchers in both retrospective and prospective standardization of discrete entity types -- such as disease names, cell types or chemicals -- that are used in metadata associated with…

Databases · Computer Science 2024-07-04 Rafael S. Gonçalves , Jason Payne , Amelia Tan , Carmen Benitez , Jamie Haddock , Robert Gentleman

In recent years, with the growing amount of biomedical documents, coupled with advancement in natural language processing algorithms, the research on biomedical named entity recognition (BioNER) has increased exponentially. However, BioNER…

Computation and Language · Computer Science 2020-09-22 Usman Naseem , Matloob Khushi , Vinay Reddy , Sakthivel Rajendran , Imran Razzak , Jinman Kim

We present Contextual Discourse Vectors (CDV), a distributed document representation for efficient answer retrieval from long healthcare documents. Our approach is based on structured query tuples of entities and aspects from free text and…

Computation and Language · Computer Science 2020-02-04 Sebastian Arnold , Betty van Aken , Paul Grundmann , Felix A. Gers , Alexander Löser

Biomedical entity linking aims to map nonstandard entities to standard entities in a knowledge base. Traditional supervised methods perform well but require extensive annotated data to transfer, limiting their usage in low-resource…

Computation and Language · Computer Science 2025-05-27 Yihao Ai , Zhiyuan Ning , Weiwei Dai , Pengfei Wang , Yi Du , Wenjuan Cui , Kunpeng Liu , Yuanchun Zhou

Background: Finding biomedical named entities is one of the most essential tasks in biomedical text mining. Recently, deep learning-based approaches have been applied to biomedical named entity recognition (BioNER) and showed promising…

Computation and Language · Computer Science 2019-05-30 Wonjin Yoon , Chan Ho So , Jinhyuk Lee , Jaewoo Kang

A recent advancement in the domain of biomedical Entity Linking is the development of powerful two-stage algorithms, an initial candidate retrieval stage that generates a shortlist of entities for each mention, followed by a candidate…

Machine Learning · Computer Science 2023-02-01 Maciej Wiatrak , Eirini Arvaniti , Angus Brayne , Jonas Vetterle , Aaron Sim

Entity matching (EM), the task of identifying whether two descriptions refer to the same entity, is essential in data management. Traditional methods have evolved from rule-based to AI-driven approaches, yet current techniques using large…

Databases · Computer Science 2024-06-18 Silvery D. Fu , David Wang , Wen Zhang , Kathleen Ge

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

Previous research on multimodal entity linking (MEL) has primarily employed contrastive learning as the primary objective. However, using the rest of the batch as negative samples without careful consideration, these studies risk leveraging…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Cong-Duy Nguyen , Xiaobao Wu , Thong Nguyen , Shuai Zhao , Khoi Le , Viet-Anh Nguyen , Feng Yichao , Anh Tuan Luu