摘要:
Given an absolute path for a file (Unix-style), simplify it.For example,path="/home/", =>"/home"path="/a/./b/../../c/", =>"/c"click to show corner cases.Corner Cases:Did you consider the case wherepath="/../"?In this case, you should return&quo 阅读全文
摘要:
一.Boosting和Bagging 首先,Boosting和Bagging两种算法都是通过构造一系列的预测函数,然后以某种方式将他们组合成最终的预测模型,以此来提高学习算法的准确度。 Bagging的主要思想是给定一个弱学习算法和一组训练集(x1,y1),…,(xn,yn)。让该学习算法训练多... 阅读全文