2013/10/03 by Sakrapee Paisitkriangkrai, Chunhua Shen, Paisitkriangkrai, Sakrapee +3
Computer Science · Engineering · #Advanced Neural Network Applications #Anomaly Detection Techniques and Applications #Automated Road and Building Extraction #Computer Vision and Pattern Recognition (cs.CV) #FOS: Computer and information sciences #Machine Learning (cs.LG) #Video Surveillance and Tracking Methods #cs.CV #cs.LG
paper · pdf · doi:10.48550/arxiv.1310.0900
10 pages. Appearing in Int. Conf. Computer Vision (ICCV) 2013
arxiv created 2013/10/03 · openalex publication_date 2013/10/03 · arxiv updated 2013/10/04 · openalex created_date 2022/09/04 · openalex updated_date 2026/07/28
Many typical applications of object detection operate within a prescribed false-positive range. In this situation the performance of a detector should be assessed on the basis of the area under the ROC curve over that range, rather than over the full curve, as the performance outside the range is irrelevant. This measure is labelled as the partial area under the ROC curve (pAUC). Effective cascade-based classification, for example, depends on training node classifiers that achieve the maximal detection rate at a moderate false positive rate, e.g., around 40% to 50%. We propose a novel ensemble learning method which achieves a maximal detection rate at a user-defined range of false positive rates by directly optimizing the partial AUC using structured learning. By optimizing for different ranges of false positive rates, the proposed method can be used to train either a single strong classifier or a node classifier forming part of a cascade classifier. Experimental results on both synthetic and real-world data sets demonstrate the effectiveness of our approach, and we show that it is possible to train state-of-the-art pedestrian detectors using the proposed structured ensemble learning method.