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I got a good things on GitHub, and share it here. There are some classical papers about deep learning.
Survey Review
Deep learning (2015), Y. LeCun, Y. Bengio and G. Hinton [pdf] :sparkles:
Deep learning in neural networks: An overview (2015), J. Schmidhuber [pdf] :sparkles:
Representation learning: A review and new 继续阅读 »
Why
读ConcurrentHashMap的时候，我们遇到的一个很大的概念就是Segment（java8之后只有在调用writeObject方法的方法的时候才会用到segment），该类继承了ReentrantLock，用于实现分段锁（乐观锁）。处于心痒痒的目的，我也尝试写了个简陋版的分段锁。
How
该Demo实现的比较简单：根据key获取或者创建Lock（获取锁的时候使用double check），然后使用该锁来同步put或者read（ConcurrentHashMap的读操作使用的volatile，这里不深入）。不足之处还请指正~
What
java实现： github
more
```java
package 继续阅读 »