標題: | Improving local learning for object categorization by exploring the effects of ranking |
作者: | Chang, Tien-Lung Liu, Tyng-Luh Chuang, Jen-Hui 資訊工程學系 Department of Computer Science |
公開日期: | 2008 |
摘要: | Local learning for classification is useful in dealing with various vision problems. One key factor for such approaches to be effective is to find good neighbors for the learning procedure. In this work we describe a novel method to rank neighbors by learning a local distance function, and meanwhile to derive the local distance function by focusing on the high-ranked neighbors. The two aspects of considerations can be elegantly coupled through a well-defined objective function, motivated by a supervised ranking method called P-Norm Push. While the local distance functions are learned independently, they can be reshaped altogether so that their values can be directly compared. We apply the proposed method to the Caltech-101 dataset, and demonstrate the use of proper neighbors can improve the performance of classification techniques based on nearest-neighbor selection. |
URI: | http://hdl.handle.net/11536/135042 |
ISBN: | 978-1-4244-2242-5 |
ISSN: | 1063-6919 |
期刊: | 2008 IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, VOLS 1-12 |
起始頁: | 2190 |
結束頁: | + |
顯示於類別: | 會議論文 |