图 书 馆
寻找一个更好的k：聚类的心理物理研究Finding a Better k: A Psychophysical Investigation of Clustering |
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| 课程网址: | http://videolectures.net/nipsworkshops09_lewis_fbp/ |
| 主讲教师: | Joshua M. Lewis |
| 开课单位: | 加州大学圣地亚哥分校 |
| 开课时间: | 2010-01-19 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Finding the number of groups in a data set, k, is an important problem in the field of unsupervised machine learning with applications across many scientific domains. The problem is difficult however, because it is ambiguous and hierarchical, and current techniques for finding k often produce unsatisfying results. Humans are adept at navigating ambiguous and hierarchical situations, and this paper measures human performance on the problem of finding k across a wide variety of data sets. We find that humans employ multiple strategies for choosing k, often simultaneously, and the number of possible interpretations of even simple data sets with very few (N < 20) samples can be quite high. In addition, two leading machine learning algorithms are compared to the human results. |
| 关 键 词: | 数据集; 机器学习; 组数k |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-09-07：lxf |
| 阅读次数: | 51 |