图 书 馆
设计高效的级联分类器：精度和成本之间的权衡Designing Efficient Cascaded Classifiers: Tradeoff between Accuracy and Cost |
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| 课程网址: | http://videolectures.net/kdd2010_krishnapuram_decc/ |
| 主讲教师: | Balaji Krishnapuram |
| 开课单位: | IBM |
| 开课时间: | 2010-10-01 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We propose a method to train a cascade of classifiers by simultaneously optimizing all its stages. The approach relies on the idea of optimizing soft cascades. In particular, instead of optimizing a deterministic hard cascade, we optimize a stochastic soft cascade where each stage accepts or rejects samples according to a probability distribution induced by the previous stage-specific classifier. The overall system accuracy is maximized while explicitly controlling the expected cost for feature acquisition. Experimental results on three clinically relevant problems show the effectiveness of our proposed approach in achieving the desired tradeoff between accuracy and feature acquisition cost. |
| 关 键 词: | 概率分布; 特征获取; 模式识别 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2023-03-10：chenjy |
| 最后编审: | 2023-05-11：chenjy |
| 阅读次数: | 18 |