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[转载]太阳同步轨道
张伟 2022-12-5 19:42
Sun-synchronous orbit (SSO) is a particular kind of polar orbit. Satellites in SSO, travelling over the polar regions, are synchronous with the Sun. This means they are synchronised to always be in the same ‘fixed’position relative to the Sun. This means that the satellite always visits th ...
个人分类: 遥感专业知识|3100 次阅读|没有评论
“Nothing simple about nature”
张伟 2022-1-10 15:23
Wednesday, February 25, 2004 By David Suzuki. People generally like simple answers. This happened, so this happened. Cause and effect. Simple. But nature doesn't work that way. Just when we think we've got something figured out, another idea comes along that turns our preconc ...
个人分类: 科研学术|1830 次阅读|没有评论
动态时间规整-DTW
张伟 2021-10-24 16:21
推荐阅读博客: https://blog.csdn.net/lin_limin/article/details/81241058 https://blog.csdn.net/zb1165048017/article/details/49226315 https://blog.csdn.net/liyuefeilon ...
个人分类: 遥感专业知识|4480 次阅读|没有评论
更好理解F1分数和Kappa系数
张伟 2021-10-22 21:54
推荐两个帖子: https://blog.csdn.net/qq_16488989/article/details/109090801 https://zhuanlan.zhihu.com/p/67844308 (1)F1分数(F1-Score) 精确率(Precision)和召回率(Recall)评估指标,理想情况下做到两个指标都高当然最好,但一般情况下,Precision高,Recall就 ...
个人分类: 遥感专业知识|11226 次阅读|没有评论
Windows10系统CUDA与TensorFlow的配置
张伟 2021-10-19 14:21
主要介绍CUDA与TensorFlow的环境搭建配置的大体思路,具体细节根据自己情况调整! (1)Windows查看CUDA版本号 详情具体见: Windows系统查看CUDA版本号 原因:在配置Tensorflow时要求与CUDA版本相对应,本文配置主要是CUDA 11.因此,弄清CUDA版本号很重要。 (2)win10环境下CUDA和CUDNN的安装 具体参考: wi ...
个人分类: 机器学习|2855 次阅读|没有评论

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