大约有 40,000 项符合查询结果(耗时:0.0275秒) [XML]

https://stackoverflow.com/ques... 

What is “vectorization”?

...vec" instructions, and even some ARM chips have a vector instruction set, called NEON. "Vectorization" (simplified) is the process of rewriting a loop so that instead of processing a single element of an array N times, it processes (say) 4 elements of the array simultaneously N/4 times. (I chose 4...
https://stackoverflow.com/ques... 

Divide a number by 3 without using *, /, +, -, % operators

...n which performs the desired operation. But it requires the + operator, so all you have left to do is to add the values with bit-operators: // replaces the + operator int add(int x, int y) { while (x) { int t = (x & y) << 1; y ^= x; x = t; } return y; }...
https://stackoverflow.com/ques... 

Remove spaces from std::string in C++

... preferred way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way? ...
https://www.tsingfun.com/ilife/idea/1850.html 

微博为什么限制140字(附短信70字限制考) - 创意 - 清泛网 - 专注C/C++及内核技术

微博为什么限制140字(附短信70字限制考)问题的提出申请过那么多的微博,数申请网易微博的动机最不纯,因为它的字数限制不是传说中的140字,而是163个字。当年觉得很可爱,于是就注...问题的提出 申请过那么多的微博,数申...
https://bbs.tsingfun.com/thread-1527-1-1.html 

Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...

...到错误908(权限接收短信)的讨论。一位用户遇到了这个问题,并询问是否有人知道如何解决。其他用户提供了一些可能的解决方案,包括检查应用程序权限设置、确保手机上的权限设置正确、重新编译应用程序等。有人建议检...
https://stackoverflow.com/ques... 

Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

...he misses on matice1 are not the problem because they are accessed sequentially. However for matice2 if a full column fits in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing gets evicted) than there is no problem with cache misses with matice2 either. Now to go ...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升

...ng-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试不同的参数),最后选择在...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升

...ng-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试不同的参数),最后选择在...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升

...ng-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试不同的参数),最后选择在...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升

...ng-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试不同的参数),最后选择在...