0


有效保角预测的多核学习

Multiple Kernel Learning for Efficient Conformal Predictions
课程网址: http://videolectures.net/nipsworkshops2010_chakraborty_mkl/  
主讲教师: Shayok Chakraborty
开课单位: 亚利桑那州立大学
开课时间: 2011-01-12
课程语种: 英语
中文简介:
Conformal Predictions框架是机器学习的最新发展,它将可靠的置信度与分类和回归结果联系起来。该框架建立在算法随机性(Kolmogorov复杂性),转换推理和假设检验的原则之上。虽然框架的制定保证了有效性,但框架的效率在很大程度上取决于分类器的选择和适当的核函数或参数。虽然这个框架在多个应用程序中具有广泛的潜力,但缺乏效率会限制其可用性。在本文中,我们提出了一种新颖的多核学习(MKL)方法,以最大限度地提高CP框架的效率。使用心脏病患者数据集上的k NearestNeighbors分类器验证该方法,并且我们的结果显示使用MKL获得有效的适形预测因子的前景,这些预测因子实际上是有用的。
课程简介: The Conformal Predictions framework is a recent development in machine learning to associate reliable measures of confidence with results in classification and regression. This framework is founded on the principles of algorithmic randomness (Kolmogorov complexity), transductive inference and hypothesis testing. While the formulation of the framework guarantees validity, the efficiency of the framework depends greatly on the choice of the classifier and appropriate kernel functions or parameters. While this framework has extensive potential to be useful in several applications, the lack of efficiency can limit its usability. In this paper, we propose a novel Multiple Kernel Learning (MKL) methodology to maximize efficiency in the CP framework. This method is validated using the k-Nearest Neighbors classifier on a cardiac patient dataset, and our results show promise in using MKL to obtain efficient conformal predictors that can be practically useful.
关 键 词: 机器学习; 算法随机性; 核函数
课程来源: 视频讲座网
最后编审: 2019-09-07:lxf
阅读次数: 46