I've heard several people asking why GCHandle doesn't implement IDisposable, considering it wraps an unmanaged resource (a handle) and needs to be explicitly freed (using GCHandle.Free()). Before I explain the reason, I want to give a little backgrou…

http://acm.hdu.edu.cn/showproblem.php?pid=3729 I'm Telling the Truth Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1427    Accepted Submission(s): 719 Problem Description After this year’s col…

使用windbg导出dump文件 .dump /ma D:\testdump.dmp gchandles命令列出句柄,同时列出句柄引用的对象,演示代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Data; using System.Runtime.InteropServices; publ…

.I'm Telling the Truth Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1740 Accepted Submission(s): 871 Problem Description After this year's college-entrance exam, the teacher did a survey in his…

Playing for Data: Ground Truth from Computer Games ECCV 2016 Project Page:http://download.visinf.tu-darmstadt.de/data/from_games/index.html arXiv Paper : http://arxiv.org/pdf/1608.02192.pdf 摘要: 本文有意思哦,从游戏中的视频帧中得到新的训练数据,为什么用这些数据呢?众所周知,最近的计算机视觉很大程度上依赖于…

L. Ministry of Truth Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100187/problem/K Description Andrey works in the Ministry of Truth. His work is changing articles in newspapers and magazines so that they praise the Party an…

Problem H. Horrible Truth Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100610 Description In a Famous TV Show “Find Out” there are n characters and only one Horrible Truth. To make the series breathtaking all way long, the sc…

今天,在调试的时候一直出现warning: suggest parentheses around assignment used as truth value 代码如下: if(startTime==0)    {        while(startTime=time((time_t*)NULL)==-1); } while(currentTime=time((time_t*)NULL)==-1); timedif=currentTime-startTime; if((strlen(cooki…

Pretty Smart? Why We Equate Beauty With Truth With some regularity we hear about the latest beauty-pageant contestant who has responded to a softball of a question with an epic fail of a mistake, a bizarre opinion or an incoherent ramble. There's the…

Description 约翰有N头奶牛,有一部分奶牛是真话奶牛,它们只说真话,而剩下的是假话奶牛,只说假话.有一天,约翰从奶牛的闲谈中陆续得到了M句话,第i句话出自第Xi头奶牛,它会告诉约翰第Yi头是一头真话奶牛还是假话奶牛.然而,约翰记性不好,他可能把这些话的内容记错了.请检查一下 约翰的记录是否会有矛盾,帮助他找到一个尽量大的K使得约翰记下的前K句话不矛盾. Input Format 第一行:两个整数 N 和 M ,1 ≤ N ≤ 1000; 1 ≤ M ≤ 10000 • 第二行到 M +…

转自ground truth的含义 ground truth在不同的地方有不同的含义,下面是参考维基百科的解释,ground truth in wikipedia. 1.在统计学和机器学习中 在机器学习中ground truth表示有监督学习的训练集的分类准确性,用于证明或者推翻某个假设.有监督的机器学习会对训练数据打标记,试想一下如果训练标记错误,那么将会对测试数据的预测产生影响,因此这里将那些正确打标记的数据成为ground truth. 小面是引用知乎lee philip的例子exampl…

Once you eliminate all the other factors,the only thing remaining must be the truth. 一旦你排除了杂因,剩下的一定是真相.--<神探夏洛克>…

维基百科关于 ground truth的解释: [Ground truth] 大致为: 在统计学和机器学习中:在机器学习中ground truth表示有监督学习的训练集的分类准确性,用于证明或者推翻某个假设.有监督的机器学习会对训练数据打标记,试想一下如果训练标记错误,那么将会对测试数据的预测产生影响,因此这里将那些正确打标记的数据成为ground truth. 以下引用自知乎lee philip的例子example on 知乎 1. 错误的数据 标注数据1 ( (84,62,86) , 1),…

在elixir中, true 就是true 或者是:true 是一个原子 atom, 在其他语言中的true,这里叫做truth, 只要你不是false,nil ,就是truth, 当然 false和nil也是原子 所以说elixir中Boolean operators 是针对true a or b # true if a is true, otherwise ba and b # false if a is false, otherwise bnot a  # false if a is tr…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3729 I'm Telling the Truth Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1700    Accepted Submission(s): 853 Problem Description After this year’…

ground truth就是参考标准,一般用来做误差量化.比方说要根据历史数据预测某一时间的温度,ground truth就是那个时间的真实温度.error就是(predicted temperature - real temprature). 在全监督学习中,数据是有标签(label)的的,以(x, t)的形式出现,其中x是输入数据,t是label.正确的t标签是ground truth, 错误的标签则不是. 由模型函数的数据则是由(x, y)的形式出现的.其中x为之前的输入数据,y为模型预测…

题解: 原先我看错题了,以为是任意选择k个使得它们不矛盾. 这样的话怎么做呢?我想M^2判断,把它们分成若干个集合,集合里面两两不矛盾这个集合里所有的话就不矛盾了. 但是这样是错的.为什么呢? 每一句话实质上都是说明了某两个点同真假或者不同真假.并非两两不矛盾它们就不矛盾,可能是合起来才矛盾. 后来发现题目说的是前k个.. 那么我们就可以像上图一样连边,用并查集判断,如果一个点为真或为假时它的祖先相同,则矛盾了. 代码: #include<cstdio> #include<cstdlib…

Description In whiteblack on blackwhite is written the utterance that has been censored by the Ministry of Truth. Its author has already disappeared along with his whole history, and now, while Big Brother is watching somebody else, you, as an ordina…

ground truth就是参考标准,一般用来做误差量化.比方说要根据历史数据预测某一时间的温度,ground truth就是那个时间的真实温度.error就是(predicted temperature - real temprature).在监督学习中,数据是有标签(label)的的,以(x, t)的形式出现,其中x是输入数据,t是label.正确的t标签是ground truth, 错误的标签则不是.由模型函数的数据则是由(x, y)的形式出现的.其中x为之前的输入数据,y为模型预测的值.…

I - I'm Telling the Truth Time Limit:3000MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Submit Status Practice UVALive 5033 Description After this year's college-entrance exam, the teacher did a survey in his class on students' score. There…

In Single Page Apps we're used to fetch the data on event callbacks. That disables the capacity to use the URL to share it to someone else and get to the same state of the app, just like in non Single Page Apps. This lesson shows you how to use React…

1. matlab 自带含 ground truth 数据集 %% 加载停车标志数据到内存: data = load('stopSignsAndCars.mat', 'stopSignsAndCars'); stopSignsAndCars = data.stopSignsAndCars; % 将 stopSignsAndCars 下的图像名,拓展为绝对路径加图像名,以方便读取 imagePath = fullfile(toolboxdir('vision'), 'visiondata'); s…

在使用pandas进行条件筛选时,使用了如下的代码: fzd_index=data[(data['实际辐照度']<mi)or(data['实际辐照度']>ma)].index 原本以为,并没有太大的问题.但是出现了ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().” 这样的报错. 正确方式: fzd_index=data[(data.…

最近在做一个目标检测算法,训练时用到了 bootstrap 策略,于是我将PASCAL的 Ground Truth 格式的读取函数从 Matlab 改写为 C++.PASCAL 的标注格式为: # PASCAL Annotation Version 1.00 Image filename : "对应图片路径"Image size (X x Y x C) : 宽 x 高 x 3Database : "数据库名称"Objects with ground truth :…

pandas follows the numpy convention of raising an error when you try to convert something to a bool. This happens in a if or when using the boolean operations, and, or, or not. It is not clear what the result of >>>if pd.Series([False, True, Fals…

From http://geekswithblogs.net/akraus1/archive/2012/07/25/150301.aspx I have written already some time ago how big a .NET object is. John Skeet as also made a very detailed post about object sizes in .NET. I wanted to know if we can deduce the object…

题目大概说n个学生,都各自有一个互不相同的成绩排名,他们各自说了他们成绩排名所在区间,问最多有几个学生没说谎以及字典序最大的没说谎的学生序列. 学生作为一个X部的点,排名作为Y部的点,学生与其成绩排名的区间的各个点之间连边,这其实就是求这个二分图的最大匹配. 排名最多10W,边容量为1,不离散化跑网络流(Dinic?!)好像应该也是没问题的..不过还是学习了别人的离散化,自己写的错了.. 这题关键是要字典序最大,不会..又学习了别人的写法——按字典序枚举学生,加相关边,依次跑最大流.好有道理!…

http://www.extremetech.com/computing/51994-the-naked-truth-about-anisotropic-filtering In the seemingly never-ending quest for more perfect 3D rendering, numerous filtering techniques are used to map an apparent three-dimensional shape into a 2D moni…

裸的二分图匹配.需要输出方案. #include<cstdio> #include<cstring> #include<vector> #include<algorithm> #include<iostream> using namespace std; #define M 100005 #define N 65 bool vis[M]; vector<int> g[N]; int now[M]; int n,m; int dfs(i…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3729 题目意思: 有n个学生,老师询问每个学生的排名,每个学生都告诉了一个排名区间,求可能的最多的学生说实话的个数,以及那些学生的标号,有相同的则输出字典序最大的. 解题思路: 这题贪心只能求出个数,但要求字典序最大,则须用二分匹配. 将学生标号放到一个集合A里,另外一个集合B放排名.对于每个学生可能在的排名点,建一条边.从学生标号大的开始匹配. 代码 #include<iostream> #i…