Summary of my learning note for WPF Binding Binding to DataSet. when we want to add new record, we should modify DataTable, not the DataTableView. Validation when Binding we can get the detail descrition from msdn. For ValidationRules, generally, we…

Machine Learning Note Introduction Introduction What is Machine Learning? Two definitions of Machine Learning are offered. Arthur Samuel described it as:"the filed of study that gives computers the ability to learn without being explicitly programmed…

 http://www.sqlpanda.com/2013/07/learning-note-sql-server-vs.html This is my learning note base on the “SQL Server Essentials for Oracle DBAs Jump Start” . DATA BLOCK/EXTEND AND SEGMENT image: http://lh5.ggpht.com/-FxEKn7CCNd0/UetkOxZ6igI/AAAAAAAAIns…

  shell learning note MAIN="/usr/local/" # 变量大写 STATUS="$MAIN/status" # 美元符加字符串是引用变量值,而美元符加数字表示命令行参数 echo "some words" >>$STATUS/log.log echo "test.sh start at `date '+%m/%d %H:%M:%S'`" >>$STATUS/log.log…

Vbird Linux: Vim Learning: http://linux.vbird.org/linux_basic/0310vi.php Bash Shell: http://linux.vbird.org/linux_basic/0320bash.php Key words of reminder: /etc/passwd history alias [Tab] Wildcard type ---builtin commands \[Enter] echo $variable…

怎样选用正确的特征构造学习算法或者如何选择学习算法中的正则化参数lambda?这些问题我们称之为模型选择问题. 在对于这一问题的讨论中,我们不仅将数据分为:训练集和测试集,而是将数据分为三个数据组:也就是训练集.验证集和测试集.本节将会介绍这些内容的含义,以及如何使用它们进行模型选择.在前面的学习中,我们已经多次接触到过拟合现象.在过拟合的情况中学习算法在适用于训练集时表现非常完美,但这并不代表此时的假设也很完美(如下图). 更普遍地说,过拟合是训练集误差通常不能正确预测出该假设是否能很好地拟合…

Just sharing the learning experience related to @ngrx/store and @ngrx/effects. In my personal opinion, I fell there are tow different types of coding style by using @ngrx/store only @ngrx/store + @ngrx/effects So How we do with only ngrx/store? Contr…

Machine Learning 这是第一份机器学习笔记,创建于2019年7月26日,完成于2019年8月2日. 该笔记包括如下部分: 引言(Introduction) 单变量线性回归(Linear Regression with One Variable) 线性代数(Linear Algebra) 多变量线性回归(Linear Regression with Multiple Variables) Octave 逻辑回归(Logistic Regression) 正则化(Regularizat…

好几天没来学习了,昨晚把继承的又整理了一下.想把整理后的东西发到hexo博客上来,却发现命令行又失效了.前几天明明是好的,这几天又没有进行任何操作,网上搜了一下也没有招到合适的解决办法,无奈只能重装了.小白就是要折腾,下面贴上继承的第一个学习笔记 How to design the inheritance tree 1.Look for objects that have common attributions and behaviors.2.Design a class that repres…

[Andrew Ng NIPS2016演讲]<Nuts and Bolts of Applying Deep Learning (Andrew Ng) 中文详解:https://mp.weixin.qq.com/s/ZbUCh5bi6Ech55qJR2gaxg…