...学习算法Choosing-a-Machine-Learning-Classifier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），最后选择在交...

...学习算法Choosing-a-Machine-Learning-Classifier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），最后选择在交...

...rc/, with PSR-0 it means it will look for Acme\Foo\Bar in src/Acme/Foo/Bar.php while in PSR-4 it will look for it in src/Bar.php, allowing for shorter directory structures. On the other hand some prefer to have the full directory structure to clearly see what is in which namespace, so you can also s...

I'm building a PHP script that feeds JSON data to another script. My script builds data into a large associative array, and then outputs the data using json_encode . Here is an example script: ...

...学习算法Choosing-a-Machine-Learning-Classifier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），最后选择在交...

... This is due to how PHP does the comparison operation that the == comparison operator denotes: If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison p...

I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...

...过程中的各种tips前言iOS开发过程中，总有那么一些个小问题让人纠结，它们不会让程序崩溃，但是会让人崩溃。除此之外，还将分享一些细节现在我通过自己的总...前言 iOS开发过程中，总有那么一些个小问题让人纠结，它们不...

...自提的鲜果说，还是送菜上门的七天买菜网，都因为价格问题导致的盈利困境而歇业，价格是上门送菜的最大障碍，要么狂砸补贴，要么把量做大，维持开支，没有别的路。笔者接触过一些做上门送菜的创业者，往往会问第一个...

...ause you are using (LAMPP) XAMPP and it isn't in /tmp/mysql.sock Open the php.ini file and find this line: mysql.default_socket And make it mysql.default_socket = /path/to/mysql.sock share | i...