Alain

摘要： ## Javapublic class MaxHeap> { private List list; private int len; private List unmodifiedList; public MaxHeap(){ list = new ArrayL... 阅读全文

摘要： ## Shallow Copy### OperaitonsIn python, an operation of shallow copy is as follows:a = [...]b = a[:]b = list(a)###########a = {...}b = dict(a)########... 阅读全文

摘要： As we know, in java, a primitive-type variable is passed to a function by value while a Object-type variable is passed by its reference(i.e, the addre... 阅读全文

摘要： First note that we have Newton's Method in calculus and in optimization. Generally, Newton's Method is the one in calculus, which aims to find $x^\*$ ... 阅读全文

摘要： ## How it looks likeVery simaple, just looks like as follows: class BaseEstimator(object): @classmethod def _get_param_names(cls): def ge... 阅读全文