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[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.5.1
Show that the inner product $$\bex \sef{x_1\wedge \cdots \wedge x_k,y_1\wedge \cdots\wedge y_k} \eex$$ is equal to the determinant of the $k\times k$ ...
分类:其他好文   时间:2014-11-21 09:09:37    阅读次数:225
[再寄小读者之数学篇](2014-11-21 关于积和式的一个不等式)
在 Rajendra Bhatia 的 Matrix Analysis 中, Exercise I.5.8 说: Prove that for any matrices $A,B$ we have $$\bex |\per (AB)|^2\leq \per (AA^*)\cdot \per (B^*...
分类:其他好文   时间:2014-11-21 09:06:12    阅读次数:179
非监督学习的单层网络分析
这篇博客对应的是Andrew.Ng的那篇文章:An Analysis o f Single-Layer Networks in Unsupervised Feature Learning,文章的主要目的是讨论receptive field size,number of hidden nodes, s...
分类:其他好文   时间:2014-11-19 20:03:54    阅读次数:255
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.1
Let $x,y,z$ be linearly independent vectors in $\scrH$. Find a necessary and sufficient condition that a vector $w$ mush satisfy in order that the bil...
分类:其他好文   时间:2014-11-19 18:28:24    阅读次数:183
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.6
Let $A$ and $B$ be two matrices (not necessarily of the same size). Relative to the lexicographically ordered basis on the space of tensors, the matri...
分类:其他好文   时间:2014-11-19 18:20:50    阅读次数:142
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.4
(1). There is a natural isomorphism between the spaces $\scrH\otimes \scrH^*$ and $\scrL(\scrH,\scrK)$ in which the elementary tensor $k\otimes h^*$co...
分类:其他好文   时间:2014-11-19 18:05:06    阅读次数:326
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.5
Suppose it is known that $\scrM$ is an invariant subspace for $A$. What invariant subspaces for $A\otimes A$ can be obtained from this information alo...
分类:其他好文   时间:2014-11-19 17:55:24    阅读次数:191
数学专业英语词汇
1概率论与数理统计词汇英汉对照表Aabsolutevalue绝对值accept接受acceptableregion接受域additivity可加性adjusted调整的alternativehypothesis对立假设analysis分析analysisofcovariance协方差分析analysisofvariance方差分析arithmeticmean算术平均值association相关性assump..
分类:其他好文   时间:2014-11-19 16:22:19    阅读次数:256
收集点小文,讲CGI,FASTCGI,PHP-CGI,PHP-FPM之间通透点的文章
http://blog.csdn.net/meegomeego/article/details/36180343http://www.opsers.org/linux-home/server/php-fpm-on-analysis-of-system-resources.html首先,CGI是干嘛的...
分类:Web程序   时间:2014-11-19 13:51:36    阅读次数:197
SQL Server Analysis Services 数据挖掘
假如你有一个购物类的网站,那么你如何给你的客户来推荐产品呢?这个功能在很多电商类网站都有,那么,通过SQL Server Analysis Services的数据挖掘功能,你也可以轻松的来构建类似的功能。将分为三个部分来演示如何实现这个功能。构建挖掘模型为挖掘模型编写服务接口开发简单的前端应用此篇介...
分类:数据库   时间:2014-11-19 12:06:19    阅读次数:231
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