学习一组方向Learning a set of directions |
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课程网址: | http://videolectures.net/colt2013_koolen_directions/ |
主讲教师: | Wouter M. Koolen |
开课单位: | 数学与计算机科学中心 |
开课时间: | 2013-08-09 |
课程语种: | 英语 |
中文简介: | 假设我们的数据由单位向量(方向)组成,我们将找到一个小的正交集合,即“最重要的方向”。总结数据。我们为这类问题开发在线算法。所使用的技术类似于主成分分析,其发现数据的最重要的小秩子空间。由于在线算法保持对最相关子空间以及方向信息的不确定性,新问题明显更复杂。 |
课程简介: | Assume our data consists of unit vectors (directions) and we are to find a small orthogonal set of the “the most important directions” summarizing the data. We develop online algorithms for this type of problem. The techniques used are similar to Principal Component Analysis which finds the most important small rank subspace of the data.The new problem is significantly more complex since the online algorithm maintains uncertainty over the most relevant subspace as well as directional information. |
关 键 词: | 子空间; 正交组; 在线算法; 主成分分析 |
课程来源: | 视频讲座网 |
最后编审: | 2020-06-29:zyk |
阅读次数: | 48 |