用可验证框架提升水下浮游生物识别的鲁棒性,减少误判。
Robustness Verification of an Autonomous Underwater Vehicle-based Plankton Classifier

- 基于可达性分析构建验证框架,确保模型稳定
- 采用神经微分方程模型,适配高分辨率成像数据
- 自动过滤模糊数据,减轻生物学家后处理负担
评估浮游生物量和微生物结构对理解上层海洋生物过程至关重要。目前,搭载原位光学成像与人工智能(AI)方法的自主水下航行器(AUV)为持续监测浮游生物提供了有前景的解决方案。然而,现有AI方法在动态、非结构化环境中常缺乏鲁棒性,环境噪声与非生物伪影导致频繁误判,需海洋生物学家耗时人工复核。为此,本文提出一种基于可达性分析的原位浮游生物分类器鲁棒性验证框架,并引入一种利用SilCam颗粒成像仪高分辨率成像能力的连续时间神经微分方程(neural ODE)分类模型。实验表明,该框架可形式化验证神经ODE模型对环境扰动的鲁棒性,作为自动化过滤器提供模型稳定性保证,显著提升自主采样的可靠性,降低后期处理工作量。
原文摘要 · Abstract (English)
The assessment of planktonic standing stocks and microorganism structures is critical for understanding upper ocean biological processes. Currently, autonomous underwater vehicles (AUVs) equipped with in-situ optical imaging and artificial intelligence (AI) methods offer a promising solution for persistent surveillance, mapping and monitoring of planktonic life. However, current AI methods often lack robustness in dynamic, unstructured environments, where environmental noise and non-biological artifacts lead to frequent misclassifications. Standard convolutional neural network (CNN) classifiers often struggle with such conditions, leading to misclassifications that require time-consuming manual validation by marine biologists. To address this issue, we propose a novel robustness verification framework for in-situ plankton classifiers based on reachability analysis. We also introduce a continuous-time neural ordinary differential equation (neural ODE) classification model leveraging the high-resolution imaging capabilities of the SilCam particle imager. In this paper, we demonstrate the effectiveness of the proposed framework by formally verifying the robustness of the neural ODE model against environmental perturbations. We demonstrate that our verification framework acts as an automated filter providing formal guarantees of model stability against ambiguous data, thereby improving the reliability of autonomous sampling and reducing the post-processing workload.
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