A Complete Tutorial on Tree Based Modeling from Scratch (in R & Python) MACHINE LEARNING PYTHON R   SHARE      MANISH SARASWAT, APRIL 12, 2016 / 52     Introduction Tree based learning algorithms are considered to be one of the best and mostly used s…

强化学习之 免模型学习(model-free based learning) ------ 蒙特卡罗强化学习 与 时序查分学习 ------ 部分节选自周志华老师的教材<机器学习> 由于现实世界当中,很难获得环境的转移概率,奖赏函数等等,甚至很难知道有多少个状态.倘若学习算法是不依赖于环境建模,则称为“免模型学习(model-free learning)”,这比有模型学习要难得多. 1. 蒙特卡罗强化学习: 在免模型学习的情况下,策略迭代算法会遇到几个问题: 首先,是策略无法评估,因为无法做全…

Tutorial on GoogleNet based image classification  2018-06-26 15:50:29 本文旨在通过案例来学习 GoogleNet 及其 Inception 结构的定义.针对这种复杂模型的保存以及读取. 1. GoogleNet 的结构: class Inception(nn.Module): def __init__(self, in_planes, kernel_1_x, kernel_3_in, kernel_3_x, kernel_5_…

https://www.gamedesigning.org/learn/game-based-learning/ I remember days gone by at elementary school when we would all file into the computer lab. We would all get a computer and boot up educational games like Math Blaster and Oregon Trail. Although…

Octave Tutorial 第一课 Computation&Operation 数据表示和存储 1.简单的四则运算,布尔运算,赋值运算(a && b,a || b,xor(a,b))等. 注意:(1)在Octave中,"不等于"的符号是"~=".(2)用%做注释.(3)变量后面接:抑制打印输出. 2.矩阵表示 (1)行矩阵(1行3列) [a1,a2,a3] (2)列矩阵(3行1列) [a1;a2;a3] (3)从1以步长为0.1到达2的(…

Forty years of research[i] says yes, games are effective learning tools. People learn from games, and they will learn more from a game than from other forms of learning.[ii] However, most people don’t get whygames work, which causes them to dismiss g…

第五课 控制语句和方程 For,while,if statements and functions (1)For loop v=zeros(10,1) %initial vectors for i=1:10, %Assign for the vectors v(i) = 2^i; end; v (%You can also do that: indices=1:10; for i=indices, v(i)=2^i; end; v ) (2)whileloop I = 1; while I <=…

第四课 Plotting Data 绘图数据 t = [0,0.01,0.98]; y1 = sin(2*pi*4*t); y2 = cos(2*pi*4*t); plot(t,y1);(绘制图1) hold on;(图1不消失) plot(t,y2,'r');(用红色绘制图2) xlable('time')(横轴名称) ylable('value')(纵轴名称) legend('sin','cos')(标记两条函数曲线) title('my plot') print -dpng 'myPlot…

第三课 Culculating Data 数据计算 矩阵计算 1.简单的四则运算 2.相乘除,乘方运算(元素位运算) ".*"为对应元素的相乘计算 "./"为对应元素的相乘计算 另外,"1 ./A"得到矩阵中每个元素的倒数 ".^"为对应元素的乘方计算 3.转置和取逆 "a'"为矩阵a的转置矩阵 inv(a)逆矩阵 pinv(a) 伪逆矩阵(其中p是pseudo的意思. 所以如果矩阵A不可逆仍可以得到一个逆…

第二课 Moving Data 数据移动 常用内置函数 (1)加载文件 load 文件名.dat(或load('文件名.dat')) 接着输入文件名便可查看文件里的数据 (2)显示当前工作空间的所有变量 who/whos(更详细) (3)清除变量 clear 变量名 直接输入clear的话将删除当前工作空间中所有变量 (4)矩阵的大小 size(A)/length(A) size(A)返回值依旧为一个矩阵[r,v] (size(A,1)返回矩阵的行数 size(A,2)返回矩阵的列数 ) len…