图 书 馆
层次结构在探索性数据挖掘中的作用The role of hierarchies in exploratory data mining |
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| 课程网址: | http://videolectures.net/ecmlpkdd08_ramakrishnan_trie/ |
| 主讲教师: | Raghu Ramakrishnan |
| 开课单位: | 微软 |
| 开课时间: | 2008-10-10 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | In a broad range of data mining tasks, the fundamental challenge is to efficiently explore a very large space of alternatives. The difficulty is two-fold: first, the size of the space raises computational challenges, and second, it can introduce data sparsity issues even in the presence of very large datasets. In this talk, we'll consider how the use of hierarchies (e.g., taxonomies, or the OLAP multi-dimensional model) can help mitigate the problem. |
| 关 键 词: | 数据挖掘; 层次结构; 计算机科学 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2023-03-14：chenjy |
| 最后编审: | 2023-03-14：chenjy |
| 阅读次数: | 19 |