图 书 馆
一种全天文成像的综合模型A Comprehensive Model of All Astronomical Imaging Ever Taken |
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| 课程网址: | http://videolectures.net/cidu2011_hogg_astronomical_imaging/ |
| 主讲教师: | David W. Hogg |
| 开课单位: | 纽约大学 |
| 开课时间: | 2012-06-27 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | In astrophysics we are beginning to work with extremely large data sets. However, unlike in most other data-science domains, we have a reasonable handle on the physical processes that generate those data: We have working models that do a fairly good job of describing the quantitative properties of galaxies, stars, and charge-coupled devices. In particular, we have pretty good descriptions of our sources of noise. For these reasons, the most sensitive and accurate measurements being made in astrophysics are made by building highly informed, probabilistic models of the data. I show some examples of scientific discoveries made by modeling data and look to the future, when data sets reach peta-scale and the models have billions of free parameters. |
| 关 键 词: | 数据集; 天体物理学; 数据科学领域; 电荷耦合器件; 建模数据 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-10-17：cwx |
| 阅读次数: | 27 |