基于多目标优化的医学影像可解释性增强研究OA
Multi-objective optimization for enhanced explainability in medical imaging models
针对医学影像场景的解释需求,提出一种基于多目标粒子群优化的解释增强方法,通过优化解释生成过程来提升解释质量与临床可读性.该方法在 LIME(局部与模型无关的解释)框架中引入多目标搜索机制,实现了高解释保真性与高区域稀疏性的自适应权衡,并获得了帕累托最优的解释结果.为验证方法有效性,以膝关节 X 光影像为实验对象,基于公开膝骨关节炎数据集在典型卷积神经网络上进行了实验评估.实验结果显示,保真性最高可提升18%,稀疏性最大可降低22%,展现出更高的聚焦性、稳定性,为基于人工智能的医疗影像可信诊断提供了可行技术路径.
To address the need for reliable interpretability in medical imaging,this study proposes a multi-objective particle swarm optimiza-tion-enhanced explanation framework that improves explanation quality and clinical readability by optimizing the LIME(Local and Model-Ag-nostic Explanations)process.The proposed method incorporates a multi-objective search strategy into the LIME pipeline,enabling an adaptive trade-off between explanatory fidelity and regional sparsity,and producing Pareto-optimal explanation outcomes.Experiments conducted on knee X-ray images from a publicly available knee osteoarthritis dataset using representative convolutional neural networks demonstrate that the method increases fidelity by up to 18%and reduces sparsity by up to 22%,resulting in more focused and stable explanations.These results in-dicate that the proposed framework offers a feasible and effective pathway toward trustworthy AI-driven medical image interpretation.
李海芳;唐超;岳鑫;张强
大连理工大学 计算机科学与技术学院,辽宁 大连 116024||大连理工大学 社会计算与认知智能教育部重点实验室,辽宁 大连 116024||新疆师范大学 计算机科学技术学院,新疆 乌鲁木齐 830054新疆师范大学 计算机科学技术学院,新疆 乌鲁木齐 830054新疆师范大学 计算机科学技术学院,新疆 乌鲁木齐 830054大连理工大学 计算机科学与技术学院,辽宁 大连 116024||大连理工大学 社会计算与认知智能教育部重点实验室,辽宁 大连 116024
信息技术与安全科学
膝骨关节炎医学影像可解释性多目标粒子群优化LIME可信赖医疗人工智能
knee osteoarthritismedical image explainabilitymulti-objective particle swarm optimizationLIMEtrustworthy medical artifi-cial intelligence
《网络安全与数据治理》 2026 (4)
59-67,9
国家重点研发计划(2024YFA1012700)教育部人文社科项目(25YJCZH119)
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