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# We are either young or old, never something in between

Today I watched ビリギャル(垫底辣妹)，it told a story of how a bad student strove for a top university and finally succeeded. While moved by the movie plot, I also realized I was not a student any more, life wo

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# Write Machine Learning Algorithms From Scratch: Random Forest

IntroductionRandom Forest is a supervised classification algorithm, it can classify data according to various given features. Assuming that we want to determine whether a person is male or female acco

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# My Last Weekend At Cisco

Today is my last weekend at Cisco, and I’m about to leave the company at the next Friday. My next employer is Alibaba, which is more cruel and fierce than Cisco, I’m not sure if this is the right choi

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# Use Deep Learning to Detect Programming Languages

IntroductionThis post introduces a way to use deep learning to detect programming languages. Take the following code as an example. 12def test(): print("something") We will get an answer python if

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# Right associativity in Scala

We define two methods here, ++ and ++: 1234567891011class Foo { def ++(n: Int): Unit = println(n + 1) def ++:(n: Int): Unit = println(n + 1)}object ValFunctionTest { def main(args: A

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# newInstance in Java

IntroductionnewInstance is used to instantiate an instance of a class dynamically. Here is an example written in Scala. 1234567891011class Printer() { def print(): Unit = { println(s"pri

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# When and how to use InheritableThreadLocal

Today I was reading Spark’s source code, and found InheritableThreadLocal in it. Little information could be found online about this class, so I decided to write a blog to illustrate how to use it, ba