用熵值筛选关键模态,提升罕见病事件分类效率
STORM: Strategic Orchestration of Modalities for Rare Event Classification
- 基于信息熵评估各模态及其组合的贡献度
- 在癫痫发作区定位中实现更高分类准确率
- 适合临床医学中需精准筛选模态的场景
在生物医学等领域,专家经验对选择最有效模态至关重要。然而,使用所有可用模态面临挑战,尤其难以确定各模态对性能的影响并优化其组合。传统方法依赖人工试错,缺乏系统框架。尽管多模态学习可整合多元信息,但全部使用往往不切实际且非必要。为此,我们提出熵基算法STORM,系统评估单个模态及其组合的信息含量,识别出对罕见类别分类至关重要的判别特征。通过癫痫发作区检测案例研究,验证了该算法在提升分类性能方面的有效性。通过选取有用模态子集,本方法为更高效的生物医学人工智能分析铺平道路,助力临床疾病诊断。
原文摘要 · Abstract (English)
In domains such as biomedical, expert insights are crucial for selecting the most informative modalities for artificial intelligence (AI) methodologies. However, using all available modalities poses challenges, particularly in determining the impact of each modality on performance and optimizing their combinations for accurate classification. Traditional approaches resort to manual trial and error methods, lacking systematic frameworks for discerning the most relevant modalities. Moreover, although multi-modal learning enables the integration of information from diverse sources, utilizing all available modalities is often impractical and unnecessary. To address this, we introduce an entropy-based algorithm STORM to solve the modality selection problem for rare event. This algorithm systematically evaluates the information content of individual modalities and their combinations, identifying the most discriminative features essential for rare class classification tasks. Through seizure onset zone detection case study, we demonstrate the efficacy of our algorithm in enhancing classification performance. By selecting useful subset of modalities, our approach paves the way for more efficient AI-driven biomedical analyses, thereby advancing disease diagnosis in clinical settings.
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