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Python中的X[:,0]和X[:,1] - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python中的X[:,0]和X[:,1]X[:,0]是numpy中数组的一种写法,表示对一个二维数组,取该二维数组第一维中的所有数据,第二维中取第0个数据,直观来说,X[:,0]就是取所有 X[:,0]是numpy中数组的一种写法,表示对一个二维数组,取该二维...
mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
出现这个错误的原因是在从库上执行命令导致,默认情况下只有主库可以执行命令。
当然可以通过设置使得从库也能执行命令,具体参见:
http://stackoverflow.com/questions/8990158/mongodb-replicates-and-error-err-not-master-and-slaveok-false-code
MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
...ct to the primary member of the replica set: Too many threads are already waiting for a connection..
C# Driver:1.3.1
Replset:
localhost:10001 (primary)
localhost:10002 (member)
I have initReplset and add localhost:10002 to the replset,
Then I create a new connection.When I try to connect...
市面上几款云主机简单对比 - 大数据 & AI - 清泛IT论坛,有思想、有深度
本帖最后由 沧海一粟 于 2015-07-21 13:31 编辑
本来想是选择一家性价比高的云主机就OK了,但是除了硬实力,软实力也不可忽视,首先必须得稳定,别动不动就被攻垮直接关机或封IP,这样的主机厂商价格再优惠也需要仔细斟酌...
Too many threads are already waiting for a connection - 人工智能(AI) - 清泛IT社区,为创新赋能!
由于工作线程数大于MongoDB的最大连接池数量,从而出现此类异常。
解决方法:
一、减少工作线程数,示意代码如下:
ParallelOptions parallelOption = new ParallelOptions();
parallelOption.MaxDegreeOfParallelism = 200;
Parallel.ForEach<string>(strList...
【解决】百度AI使用Web客户端Post方法报错的问题 - App应用开发 - 清泛IT社...
按照文档,就是使用Post方法:
代码肯定没有问题的情况下,就是报错:参数不对
改成Get方式,完美:
深层次原因可能还需要挖一下~~~
Why should I learn Lisp? [closed]
...
One of the main uses for Lisp is in Artificial Intelligence. A friend of mine at college took a graduate AI course and for his main project he wrote a "Lights Out" solver in Lisp. Multiple versions of his program utilized slightly diffe...
Android - How to get application name? (Not package name)
...ou really use a label in android:name. If you hardcoded a string, then it fails.
– Snicolas
Aug 29 '13 at 15:20
2
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AI2 Media Notification
...integrated. The Foreground service is now declared via UsesServices annotaion in the source and manually in the broadcastReceivers section in the generated .aix file. With these changes it is no longer necessary to have two different versions of the extension for App Inventor and Kodula...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...程序入口
在C语言源程序中,程序不必显式地指定程序由哪里开始执行,编译器已经约定好从main()函数开始执行了。而在汇编程序中,并没有一个main函数,程序员可以指定从代码段的任何一个地方开始执行,这个地方由程序最...
