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Python赋值、浅拷贝、深拷贝
一、赋值(assignment) 在Python中,用一个变量给另一个变量赋值,其实就是给当前内存中的对象增加一个“标签”而已。 如上例,通过使用内置函数 id() ,可以看出 a 和 b 指向内存中同一个对象。a is b会返回 True 。 二、浅拷贝(shallow copy) 注意:浅拷贝和 ...
分类:编程语言   时间:2017-12-20 03:38:22    阅读次数:163
2017年12月19日 课程二(Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization),第二周(Optimization algorithms) —— 2.Programming assignments:Optimization
Optimization Welcome to the optimization's programming assignment of the hyper-parameters tuning specialization. There are many different optimization ...
分类:Web程序   时间:2017-12-19 12:36:36    阅读次数:226
课程二(Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization),第一周(Practical aspects of Deep Learning) —— 4.Programming assignments:Gradient Checking
Gradient Checking Welcome to this week's third programming assignment! You will be implementing gradient checking to make sure that your backpropagati ...
分类:Web程序   时间:2017-12-16 18:32:02    阅读次数:169
课程二(Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization),第一周(Practical aspects of Deep Learning) —— 2.Programming assignments:Initialization
Initialization Welcome to the first assignment of the hyper parameters tuning(超参数调整) specialization. It is very important that you regularize your mod ...
分类:Web程序   时间:2017-12-15 00:46:35    阅读次数:344
052-160
View the Exhibit to observe the roles assigned to the SLP_REP user. Which statement is true about the assignment of the SELECT_CATALOG_ROLE role to th ...
分类:其他好文   时间:2017-12-14 19:26:03    阅读次数:203
Custom partition assignment and migration kafka集群扩充迁移指定partition
The partition reassignment tool can also be used to selectively move replicas of a partition to a specific set of brokers. When used in this manner, i ...
分类:其他好文   时间:2017-12-14 19:17:42    阅读次数:219
HDU 6006 状压dp
Engineer Assignment Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 849 Accepted Submission(s): 3 ...
分类:其他好文   时间:2017-12-13 19:42:39    阅读次数:130
Deep Neural Network for Image Classification: Application
When you finish this, you will have finished the last programming assignment of Week 4, and also the last programming assignment of this course! You w ...
分类:移动开发   时间:2017-12-13 14:19:21    阅读次数:591
条款04:确定对象被使用前已被初始化
记住:永远在使用对象前先将它初始化。 1、不要混淆赋值assignment和初始化initialization。 记住如果没有在构造函数的初始化成员列表中显式地初始化成员,则该成员将在构造函数体之前执行默认初始化,比如说上面第一个,在进行赋值之前,theName会调用默认构造函数执行初始化操作。 初 ...
分类:其他好文   时间:2017-12-10 23:09:56    阅读次数:342
Building your Deep Neural Network: Step by Step¶
Welcome to your week 4 assignment (part 1 of 2)! You have previously trained a 2-layer Neural Network (with a single hidden layer). This week, you wil ...
分类:Web程序   时间:2017-12-07 19:03:44    阅读次数:250
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