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前后文记忆矩阵引导的胸部放射影像报告生成模型

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针对现有的放射影像报告生成方法主要关注前文信息在报告生成过程中的指导作用,忽略了后文信息在报告描述生成中的作用,存在语义信息不完整、关键信息缺失等问题,提出了 一种前后文记忆矩阵引导的胸部放射影像报告生成模型(RadRG).为了在生成过程中获得更丰富的语义信息,提出记忆矩阵生成模块(MA),使用记忆矩阵记录报告的模式信息和语义信息,并使用门控单元对其进行调控,以防止训练过程中出现梯度消失或信息爆炸.将本文模型在IU X-Ray和MIMIC-CXR公开数据集上进行了测试,实验结果表明:与现有主流模型对比,本文模型在BIEU指标达到了 2.6%的提升.
Anterior-posterior memory matrix model for chest radiology image report generation
Aiming at the existing radiographic report generation methods that mainly focus on the guiding role of the preceding information in the report generation process and ignore the role of the following information in the report description generation,which has the problems of incomplete semantic information and missing key information,anterior-posterior memory matrix model for chest radiology image report generation(RadRG)is proposed.In order to obtain richer semantic information in the generation process,anterior-posterior memory matrix(MA)is proposed,which uses the memory matrix to record the schema information and semantic information of the report,and uses a gating unit to regulate it in order to prevent the gradient from disappearing or the information explosion in the training process.The model in this paper is tested on the IU X-Ray and MIMIC-CXR public datasets,and the experimental results show that the model in this paper achieves a 2.6%improvement in the BIEU metrics compared with the existing mainstream models.

medical report generationcontext memory matrixgating unitcross model

刘利军、张云峰、黄青松

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昆明理工大学信息工程与自动化学院,昆明 650500

云南省计算机技术应用重点实验室,昆明 650500

医学报告生成 前后文记忆矩阵 门控单元 跨模态

2024

吉林大学学报(工学版)
吉林大学

吉林大学学报(工学版)

CSTPCD北大核心
影响因子:0.792
ISSN:1671-5497
年,卷(期):2024.54(8)