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Large-language models have recently demonstrated impressive zero-shot capabilities in a variety of natural language tasks such as summarization, dialogue generation, and question-answering. Despite many promising applications in clinical…

Clinical Decision Support Systems (CDSS) utilize evidence-based knowledge and patient data to offer real-time recommendations, with Large Language Models (LLMs) emerging as a promising tool to generate plain-text explanations for medical…

Computation and Language · Computer Science 2023-10-04 D. Umerenkov , G. Zubkova , A. Nesterov

Retrieval-Augmented Generation (RAG) is widely used to ground large language models in external knowledge sources. However, when applied to heterogeneous corpora and multi-step queries, Naive RAG pipelines often degrade in quality due to…

Information Retrieval · Computer Science 2026-04-10 Valeriy Kovalskiy , Nikita Belov , Nikita Miteyko , Igor Reshetnikov , Max Maximov

We introduce a novel graph-based Retrieval-Augmented Generation (RAG) framework specifically designed for the medical domain, called \textbf{MedGraphRAG}, aimed at enhancing Large Language Model (LLM) capabilities for generating…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Junde Wu , Jiayuan Zhu , Yunli Qi , Jingkun Chen , Min Xu , Filippo Menolascina , Vicente Grau

Language models (LMs), including large language models (such as ChatGPT), have the potential to assist clinicians in generating various clinical notes. However, LMs are prone to produce ``hallucinations'', i.e., generated content that is…

Computation and Language · Computer Science 2024-07-23 Fenglin Liu , Bang Yang , Chenyu You , Xian Wu , Shen Ge , Zhangdaihong Liu , Xu Sun , Yang Yang , David A. Clifton

Large language models (LLMs) often struggle with context fidelity, producing inconsistent answers when responding to questions based on provided information. Existing approaches either rely on expensive supervised fine-tuning to generate…

Computation and Language · Computer Science 2025-09-18 Suyuchen Wang , Jinlin Wang , Xinyu Wang , Shiqi Li , Xiangru Tang , Sirui Hong , Xiao-Wen Chang , Chenglin Wu , Bang Liu

Retrieval-Augmented Generation (RAG) systems typically face constraints because of their inherent mechanism: a simple top-k semantic search [1]. The approach often leads to the incorporation of irrelevant or redundant information in the…

Computation and Language · Computer Science 2025-09-03 Andreas Ottem

As the field of automated machine learning (AutoML) advances, it becomes increasingly important to incorporate domain knowledge into these systems. We present an approach for doing so by harnessing the power of large language models (LLMs).…

Artificial Intelligence · Computer Science 2023-10-02 Noah Hollmann , Samuel Müller , Frank Hutter

Retrieval-Augmented Generation (RAG) systems leverage Large Language Models (LLMs) to generate accurate and reliable responses that are grounded in retrieved context. However, LLMs often generate inconsistent outputs for semantically…

Computation and Language · Computer Science 2025-10-17 Xujun Peng , Anoop Kumar , Jingyu Wu , Parker Glenn , Daben Liu

Labeling training datasets has become a key barrier to building medical machine learning models. One strategy is to generate training labels programmatically, for example by applying natural language processing pipelines to text reports…

Recommender systems play a pivotal role in providing relevant content to users. With the rapid development of large language models (LLMs), researchers have begun utilizing LLMs to build more powerful recommender systems. However, existing…

Information Retrieval · Computer Science 2025-06-26 Haochen Zhang , Tianyi Zhang , Junze Yin , Oren Gal , Anshumali Shrivastava , Vladimir Braverman

This paper introduces a system that integrates large language models (LLMs) into the clinical trial retrieval process, enhancing the effectiveness of matching patients with eligible trials while maintaining information privacy and allowing…

Information Retrieval · Computer Science 2024-11-01 Georgios Peikos , Pranav Kasela , Gabriella Pasi

In enterprise search, building high-quality datasets at scale remains a central challenge due to the difficulty of acquiring labeled data. To resolve this challenge, we propose an efficient approach to fine-tune small language models (SLMs)…

Background: Clear language makes communication easier between any two parties. A layman may have difficulty communicating with a professional due to not understanding the specialized terms common to the domain. In healthcare, it is rare to…

Computation and Language · Computer Science 2021-05-20 Mohammed Ibrahim , Susan Gauch , Omar Salman , Mohammed Alqahatani

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

In search advertising, keyword matching connects user queries with relevant ads. While token-based matching increases ad coverage, it can reduce relevance due to overly permissive semantic expansion. This work extends keyword reach through…

Information Retrieval · Computer Science 2025-05-27 Dipanwita Saha , Anis Zaman , Hua Zou , Ning Chen , Xinxin Shu , Nadia Vase , Abraham Bagherjeiran

Clinical diagnosis is a highly specialized discipline requiring both domain expertise and strict adherence to rigorous guidelines. While current AI-driven medical research predominantly focuses on knowledge graphs or natural text…

Machine Learning · Computer Science 2025-12-12 Haolin Li , Tianjie Dai , Zhe Chen , Siyuan Du , Jiangchao Yao , Ya Zhang , Yanfeng Wang

In recent years, the use of large language models (LLMs) for text classification has attracted widespread attention. Despite this, the classification accuracy of LLMs has not yet universally surpassed that of smaller models. LLMs can…

Computation and Language · Computer Science 2024-12-11 Min Zeng , Caiquan Liu , Shiqi Zhang , Li Xie , Chen Sang , Xiaoxin Chen

We present SynCABEL (Synthetic Contextualized Augmentation for Biomedical Entity Linking), a framework that addresses a central bottleneck in supervised biomedical entity linking (BEL): the scarcity of expert-annotated training data.…

Computation and Language · Computer Science 2026-05-19 Adam Remaki , Christel Gérardin , Eulàlia Farré-Maduell , Martin Krallinger , Xavier Tannier

Multilingual dense retrieval aims to retrieve relevant documents across different languages based on a unified retriever model. The challenge lies in aligning representations of different languages in a shared vector space. The common…

Information Retrieval · Computer Science 2025-09-12 Chao Huang , Fengran Mo , Yufeng Chen , Changhao Guan , Zhenrui Yue , Xinyu Wang , Jinan Xu , Kaiyu Huang