Extending Dataset Pruning to Object Detection: A Variance-based Approach

• URL: http://arxiv.org/abs/2505.17245v1
• Date: Thu, 22 May 2025 19:46:51 GMT
• Title: Extending Dataset Pruning to Object Detection: A Variance-based Approach
• Authors: Ryota Yagi,
• Abstract summary: We present the first extension of classification pruning techniques to the object detection domain.<n>We propose tailored solutions, including a novel scoring method called Variance-based Prediction Score (VPS)<n>Our work bridges dataset pruning and object detection, paving the way for dataset pruning in complex vision tasks.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Dataset pruning -- selecting a small yet informative subset of training data -- has emerged as a promising strategy for efficient machine learning, offering significant reductions in computational cost and storage compared to alternatives like dataset distillation. While pruning methods have shown strong performance in image classification, their extension to more complex computer vision tasks, particularly object detection, remains relatively underexplored. In this paper, we present the first principled extension of classification pruning techniques to the object detection domain, to the best of our knowledge. We identify and address three key challenges that hinder this transition: the Object-Level Attribution Problem, the Scoring Strategy Problem, and the Image-Level Aggregation Problem. To overcome these, we propose tailored solutions, including a novel scoring method called Variance-based Prediction Score (VPS). VPS leverages both Intersection over Union (IoU) and confidence scores to effectively identify informative training samples specific to detection tasks. Extensive experiments on PASCAL VOC and MS COCO demonstrate that our approach consistently outperforms prior dataset pruning methods in terms of mean Average Precision (mAP). We also show that annotation count and class distribution shift can influence detection performance, but selecting informative examples is a more critical factor than dataset size or balance. Our work bridges dataset pruning and object detection, paving the way for dataset pruning in complex vision tasks.

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