arXiv:2504.19249cs.CV2025-04被引 8

首个系统评估目标检测可解释AI的方法框架,揭示不同方法的优劣权衡。

ODExAI: A Comprehensive Object Detection Explainable AI Evaluation

  • 从定位精度、模型忠实度和计算开销三方面构建评估体系
  • 区域方法定位准但慢(71.42秒),基于CAM的方法快但可信度低
  • 为实际部署提供选择依据,适合研究可解释性和工程落地者

目标检测领域的可解释人工智能(XAI)技术仍处于早期阶段,缺乏系统性评估标准。为此,我们提出物体检测可解释人工智能评估框架(ODExAI),从定位精度、对模型行为的忠实度以及计算复杂度三个核心维度评估XAI方法。我们在YOLOX和Faster R-CNN两个主流检测器上,使用MS-COCO和PASCAL VOC两个标准数据集对多种XAI方法进行基准测试。实验结果表明,基于区域的方法(如D-CLOSE)在定位精度(PG = 88.49%)和模型忠实度(OA = 0.863)上表现优异,但计算耗时长(Time = 71.42s);而基于CAM的方法(如G-CAME)实现更高定位精度(PG = 96.13%)和更短运行时间(Time = 0.54s),但忠实度较低(OA = 0.549)。这些发现揭示了现有XAI方法的关键权衡,强调在目标检测流程中应根据任务需求进行针对性评估。代码与评测基准已公开于:https://github.com/Analytics-Everywhere-Lab/odexai。

原文摘要 · Abstract (English)

Explainable Artificial Intelligence (XAI) techniques for interpreting object detection models remain in an early stage, with no established standards for systematic evaluation. This absence of consensus hinders both the comparative analysis of methods and the informed selection of suitable approaches. To address this gap, we introduce the Object Detection Explainable AI Evaluation (ODExAI), a comprehensive framework designed to assess XAI methods in object detection based on three core dimensions: localization accuracy, faithfulness to model behavior, and computational complexity. We benchmark a set of XAI methods across two widely used object detectors (YOLOX and Faster R-CNN) and standard datasets (MS-COCO and PASCAL VOC). Empirical results demonstrate that region-based methods (e.g., D-CLOSE) achieve strong localization (PG = 88.49%) and high model faithfulness (OA = 0.863), though with substantial computational overhead (Time = 71.42s). On the other hand, CAM-based methods (e.g., G-CAME) achieve superior localization (PG = 96.13%) and significantly lower runtime (Time = 0.54s), but at the expense of reduced faithfulness (OA = 0.549). These findings demonstrate critical trade-offs among existing XAI approaches and reinforce the need for task-specific evaluation when deploying them in object detection pipelines. Our implementation and evaluation benchmarks are publicly available at: https://github.com/Analytics-Everywhere-Lab/odexai.

可解释AI目标检测评估框架

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